Causal Argument Analyzing the Causes of The 2011 NBA Lockout Essay Example For Students

Death of a Salesman and A Raisin in the SUn Essay Example For Students

Passing of a Salesman and A Raisin in the SUn Essay A typical topic in the public arena today is that cash is the way to satisfaction. In A Raisin in the Sun and Death of a Salesman the subject that cash is the foundation of happiness is likewise present. In A Raisin in the Sun, Walter Lee wants to be rich that he ignores his child and spouse. Willy, in Death of a Salesman, is additionally occupied by the idea of cash. Most importantly, Willy accepts that he should be as effective as his sibling, Ben, so as to be glad. He goes through his entire time on earth wishing that he had gone with his sibling to Alaska. This is the place he got rich and Willy accepts that on the off chance that he had gone with Ben, he would be rich as well. Ordinarily all through the play, when Willy is having visualizations of Ben, he asks him, How did you do it, Ben? Likewise, all through the play, he alludes to a sales rep that is in his 80s and is exceptionally effective. He discusses how this man is so old, however is as yet working from his home. He likewise discusses how this man is so popular in the entirety of the urban areas that he has gone to. Being popular is essential to Willy in light of the fact that he imagines that on the off chance that he is popular all through the region, he will sell more and in this way become rich like his sibling. In a similar regard, Walter Lee, from A Raisin in the Sun, has an in terest with cash. He accepts that he needs to claim an alcohol store to acquire cash and when his mom gets her check, he anticipates that her should give him the cash with the goal that he can satisfy his fantasy. At the point when his mom doesn't give him the cash from the outset, he is angry on the grounds that he accepts that, to be upbeat, he should possess the alcohol store. Walter Lee needs to be a decent dad and spouse and needs to have the option to accommodate his family everything that they need. This longing he has conceals his eyes from the way that he is ignoring them. At long last, when Walter Lee gets the cash that he needs from his mom for the store, it is taken by one of his colleagues. I accept this is when Walter Lee understands that cash isn't all that matters and it isn't the best way to joy. A Raisin in the Sun and Death of a Salesman both have essential thoughts that cash can purchase joy, when as a general rule, the fundamental characters in the plays underst and that quite is the most significant thing.

Innocence free essay sample

Something wasn't right. She had been in there for a really long time. Remaining outside the washroom entryway, I envisioned what I would see and realized it would be what I never needed to occur. I gradually pushed the restroom entryway open, and there she was. Not the young lady I knew, however an all out outsider. An absolute outsider with one arm held over a sink and another arm grasping a little edge. Ruby fluid dribbled down the sides of the sink, making since quite a while ago, spiked lines practically like a dreary bit of dynamic workmanship. I gaze toward her face. She doesn’t look astonished, furious, or stressed. Simply quiet. She gives me an irresolute grin, and glances back at her arm. Now, I didn't have a clue how I felt. My heart sank, however I wasn’t shocked, irate, nor worriedâ€all the things I figured I would be, and ought to be. We will compose a custom paper test on Guiltlessness or on the other hand any comparative subject explicitly for you Don't WasteYour Time Recruit WRITER Just 13.90/page Probably the dearest companion was cutting herself, seeping out, directly before me, and all I felt was†¦ void. I realized she cut herselfâ€I had seen the scarsâ€but I have never observed the demonstration. Obviously I needed her to stop. What sort of companion would I be in the event that I didn’t? Be that as it may, I moronically kept my mouth shut. I smoothly strolled over, took her arm, and began to assist her with purifying off the blood. She gazed at me vacantly, similar to she wasn’t even a piece of this world. Imagine a scenario where soon she wasn’t. Where was the young lady I met on the absolute first day kindergarten? My recollections review a bubbly young lady with short wavy hair and a charming grin and how thudded down on the rug close to me and posed that game changing inquiry, â€Å"Will you be my friend?† From then on, we shaped an interminable bond that would keep going for a lifetime. I never envisioned this would occur in our future. How might I be so credulous to imagine that we would remain guiltless until the end of time? Rather than confronting the cruel reality, I made my optimal world. I made an expound, misconstrued fantasy of blamelessness. Guiltlessness that was just a dream, a whimsical, happy legendary idea. I can't review some other time that I had been so totally close-disapproved. It was not my companion who was to blame here, it was me. She was attempting to split away from every single assumption of our youth, while everything I did was indiscriminately clutch our euphoric adolescence for dear li fe. Be that as it may, the time has come to acknowledge the obvious issues, it has since been quite a while since we were ever really honest. I just never permitted myself to open my eyes sufficiently wide to see it.

Disneyland in Qatar (Global Marketing Plan) Case Study

Disneyland in Qatar (Global Marketing Plan) - Case Study Example The key attack of the market chance to the company’s abilities has been featured. The report closes with the distinguishing proof of a market opportunity in the Qatari market that merits seeking after, which turns into the expressed goal of the worldwide advertising procedure plan. Acquaintance For associations with look after seriousness, they have to adjust to the assorted needs of clients just as the networks inside which they work. Remote venture is an expensive move that requires an enormous capital cost. An association needs to set solid advertising systems to upgrade its endurance. It is critical to assess the significant parts of the inside condition that may impact achievement, for example, the hierarchical structure, the product offering which is the amusement park for this situation, the status of the market, just as the dissemination and gracefully chain. Additionally, appraisal of the outer condition is noteworthy in the arranging procedure particularly when the a ssociation intends to wander in to the worldwide market. The PESTEL examination encourages directors to set systems to adapt to difficulties in the working condition. The SWOT examination causes supervisors to gain by their qualities to use accessible open doors just as to understand the shortcomings that should be tended to. It is likewise a significant arranging device for building up potential dangers ahead of time. These examinations will be critical in deciding the key attack of Disney to set up an amusement park in the rising Qatari market. Interior Situation Company Structure Walt Disney Company works in an utilitarian structure with a few partners and auxiliaries in various nations all around. The different areas incorporate; amusement parks, resorts, media systems, delight studios, buyer merchandise and intuitive media administrations. These areas give various items under brought together administration. Disney’s amusement parks control a wide asset base concerning m aterials that are noteworthy in producing an incentive for clients (Keller, 2001). Substantial resources are enhanced by elusive resources, for example, a solid brand name, brand value, patent rights and client steadfastness. Every asset is remarkably situated to serve a specific gathering of customers and subsequently hard to mirror. Disneyland had the option to deliberately create abilities that can be used in a serious situation, for instance, copyrights have helped in the maintenance of benefits for each character in its studios (Capodagli and Jackson, 1999). Disney’s Theme Park The amusement park includes for the most part diversion attractions and rides appropriate for family recreation. The amusement park diversion is reasonable for grown-ups and youngsters. For the most part, inventiveness the executives has been critical in the achievement of Disney’s amusement parks (Mulcaster, 2009). The amusement park technique was created in 1952 and exploited the gigantic effect of TV in mindfulness creation among buyers. From that point forward, the eleven amusement parks have been set up internationally predominantly in the US, Europe and Asia. Advancement and target situated methodology have fundamentally added to the development of the Disney amusement parks (Wasko, 2004). Current Market for the Theme Parks The present market for Disney’s items depends on people’s readiness and capacity to spend on diversion and recreation. The them

I? Gr?d School W?rth th? C??t

I? Gr?d School W?rth th? C??t Fir?t of ?ll, it d???nd? ?n wh? is ??king. S???ndl?, I am n?t ?x??tl? ?ur? h?w t? ?ut the second ?n?, but here is a f??tâ€"? lot ?f successful people didn’t ?v?n m?k? it through th?ir und?rgr?du?t? program.S?, i? grad school w?rth th? ???t? All I’v? g?t right n?w i? “th?t’? a really nice ?u??ti?n”. In thi? ?rti?l?, we ?r? going t? br??k it down and in th? ?nd, you would be able to determine if it’s worth it to you.Frankly speaking, it all depends on the individual and his or her goals in life.L?T’? ?T?RT FR?M TH? T??Th? cost of graduate ??h??l“PhD m?d? m? ???r?r, with?ut m?n??, but ri?h?r in thoughts”. Lailah Gifty Akit?Th? d??i?i?n to g? t? graduate ??h??l i? u?u?ll? an ?x??n?iv? one, ?nd m??t ?tud?nt? ?r? willing to borrow l?rg? sums of m?n?? f?r ?n ?dv?n??d d?gr??.According to ?n in?ugur?l report on H?w America P??? f?r Graduate S?h??l, th? m?j?rit? of gr?d ?tud?nt? ??? ?n ?dv?n??d d?gr?? i? the n?w minimum ?t?nd?rd ?du??ti?n level f?r ?n? ?r?f???i?n.On top ?f t hat, the survey f?und th?t ?nl? 12 percent ?f graduate ?tud?nt? b???d their ?nr?lm?nt d??i?i?n on ???t â€" ?r??tig? ?nd ?th?r f??t?r? were m?r? important.Th? v??t m?j?rit? ?f th?m ?r? willing to b?rr?w t? ??? for gr?d school. They see graduate school as ?n investment in th?ir futur?.Many masters ?nd doctoral degree programs ?r? ???tl?. F?r in?t?n??, ?n ?ngin??ring grad ?tud?nt ?t Stanford Univ?r?it? in C?lif?rni? ??n ??? m?r? than $50,000 a year for the 2017-2018 ?ti?k?r price; multi?l? th?t tuiti?n by two years ?nd the full ?ubli?h?d ???t i? m?r? th?n $100,000. But ?x??rt? say m?n? gr?du?t? students ?r? willing t? pay a h?ft? ?ri?? tag for a boost in salary.In f??t, 53 percent ?f graduate students in the How America P??? f?r Graduate School” survey ??id th?? were using ?tud?nt l??n? â€" federal ?r ?riv?t? â€" t? ??? for th?ir advanced di?l?m??.Tuiti?n and f??? ??n translate int? high student d?bt th?t could take l?ng?r to pay ?ff than ??u think. But ?n the other hand, it could ?i ?ld a well-paying j?b th?t m?k?? th? inv??tm?nt w?rth it.Which j?b? are worth th?t investment? T? help ?n?w?r th?t ?u??ti?n, l??n ??m??ri??n site Finder.com looked at th? highest-paying j?b? th?t r??uir? a ?r?f???i?n?l d?gr?? ?nd ??l?ul?t?d whi?h leave individuals with the gr??t??t in??m?, after education costs ?nd ?tud?nt loan r????m?nt.To ??m?il? the report, Find?r.??m ?h??? th? professions th?t made LinkedIns 2017 high??t-???ing jobs li?t. R????r?h?r? ??l?ul?t?d the ?v?r?g? ?m?unt it would ???t a professional t? pay f?r th? ?du??ti?n ?????i?t?d with th? j?b, ?? well as how mu?h it w?uld cost t? ??? ?ff their ?tud?nt loans.They u??d ?v?r?g? tuiti?n costs ?nd a t??i??l ?tud?nt l??n repayment t?rm of 10 years, with ?n interest rate ?f 3.76 percent f?r an und?rgr?du?t? d?gr??, and 4.53 ??r??nt for a graduate d?gr??.T? d?t?rmin? whi?h ?r?f???i?n has th? b??t v?lu?, they u??d LinkedIns ??l?r? d?t? ?nd multi?li?d it ?v?r 10 ???r?, the ??m? time it would t?k? t? ??? ?ff all ???t? ?????i? t?d with the d?gr??.They th?n subtracted th? total costs ?f ???ing ?ff th? student l??n.Th?? f?und ?ut that some j?b? really did w?rth th? extra ?du??ti?n ???t.In f??t th? t?? 9 j?b? r??ll? make a compelling argument as to th? w?rthwhil?n??? of ???tgr?du?t? education.Qu??ti?n? ??u must ??k yourself b?f?r? going t? gr?du?t? ??h??lWhy d? I want t? go?Y?u n??d t? h?v? an honest ??nv?r??ti?n with ??ur??lf. Our ?dvi??? Start a j?urn?l, if ??u h?v?n’t ?lr??d?.Some patterns t? l??k for in ??ur thinking ?r writing ?b?ut wh? you w?nt t? g?? If ??u k??? ??ming b??k t? the id?? of n?t b?ing r??d? to enter th? workforce, then ??u ?h?uld ?nt?r th? workforce.Putting it ?ff b? g?ing t? gr?du?t? ??h??l isn’t g?ing t? h?l? ??u. Not w?nting t? get a j?b i? not a g??d r????n t? inv??t in a graduate degreeâ€"because wh?n you graduate, ??u’ll b? right b??k in th? ??m? ?l???.If th?r?’? something ??u want t? ?x?l?r? m?r?, ?r a ??rt?in kind ?f j?b ??u w?nt th?t r??uir?? ?n ?dv?n??d d?gr??, then you ?h?uld ?ur?u? that thinking b? looking at gr?du?t? school ??ti?n?. If ??ur desired ??r??r r??uir?? ?n ?dv?n??d d?gr?? lik? a master’s ?r PhD, gr?du?t? ??h??l i? a g??d direction.D? I need a d?gr???Advanced d?gr??? ?r? in?r???ingl? vi?w?d ?? im??rt?nt t? getting j?b? ?nd ?dv?n?ing, ?v?n in tr?diti?n?ll? m?d??tl? paying ??r??r? such ?? libr?r? ??i?n?? and career counselling.In ??m? fi?ld?, th? ?du??ti?n goals f?r li??n?ur? ?r? racketing up du? t? th? evolution in ?kill? r??uir?d. Adv?n??d ?r??ti?? nur??? n?w h?v? j?b d???ri?ti?n? th?t in?lud? m?n? ?f the t??k? that u??d t? b? done ?nl? b? ?n???th??i?l?gi?t? or ?th?r d??t?r?, and theres b??n a ?u?h t? r?i?? th? ?ntr? b?r from a  m??t?r? t? a doctor ?f nur?ing ?r??ti?? degree.The credential creep m?? ???m lik? an ?rbitr?r? m???ur? t? screen ?ut job candidates, but ??m? employers r?g?rd th?t masters ?? a measure ?f ??ft ?kill? â€" lik? grit, d?t?rmin?ti?n and persistence.M?r? than 38,000 ????l? earned gr?du?t? ??rtifi??t??, th? f??t?? t-gr?wing ??gm?nt of higher education, in 2015. G??rg? Washington Univ?r?it?? 87 graduate certificate programs include h??lth ??r? ??r??r?t? ??m?li?n?? ?nd museum ??ll??ti?n? management and ??r?. If ??ur? interested in ??ftw?r? d?v?l??m?nt, a coding boot camp might ???n u? new j?b ????rtuniti??.And it? ??rt?inl? not a g??d id?? t? opt for a ?ri??? d?gr?? n?w if more school is ju?t a w?? ?f ?v?iding a tough j?b m?rk?t.Wh?t will it ???t?The tab m?? not b? ?? burdensome as you think. Many ?f u? h?v? in ?ur h??d? the ?ti?k?r ?ri?? of $30,000 t? $40,000 per ???r f?r und?rgr?du?t? ?du??ti?n.S? we ???, OK, it? tw? ???r? f?r a graduate degree, so it? going t? ???t m? $70,000 or $80,000 or more. And whil? th?r? are ??rt?inl? ?r?gr?m? ?t th?t price point, th?r? are m?n? programs wh?r? you ??n g?t the entire graduate degree for between $20,000 and $40,000.A wid?ning array ?f ??rt-tim? ??ti?n? and ?nlin? programs both ?ff?r fl?xibilit? ?nd ??n limit th? need to t?k? on d?bt. One-third ?f all gr ?du?t? ?du??ti?n in th? U.S. t?d?? i? via ?nlin? education ?r bl?nd?d learning.It ?h?uldnt b? hard t? find a ?r?gr?m th?t w?rk? f?r ??ur ??h?dul? ?nd ??ur price ??int.A program’s effect ?n ??ur walletC?n?id?r not just th? imm?di?t? but l?ng-t?rm fin?n?i?l im?li??ti?n? ?f graduate ??h??l. Y?u may be giving u? a steady ??l?r? or t?king ?ut additional l??n? to ??v?r th? cost ?f living in ?dditi?n t? tuiti?n. B?f?r? und?rt?king ?u?h a ??mmitm?nt, ask th??? ?u??ti?n? to ?n?ur? ??u’r? minimizing fin?n?i?l l???.What t???? of scholarship opportunities ?xi?t?Th? ?dmi??i?n or fin?n?i?l ?id ?ffi?? ?t ??ur ?r?????tiv? in?tituti?n ?h?uld have inf?rm?ti?n on scholarship ?nd grant opportunities readily ?v?il?bl?. They m?? h?v? information ?n scholarships based on m?rit, field ?f study, student ?t?tu?, ?ultur?l b??kgr?und, ?r ?th?r factors. Don’t b? ?fr?id t? m?k? a ??ll ?r ??h?dul? a ?it-d?wn m??ting with your ??h??l’? fin?n?i?l ??rvi??? ?ffi?? t? find out what t??? ?f funding opportunitie s ?r? available.If you d?n’t find what ??u’r? looking for at ??ur institution, th?r? are literally billi?n? ?f d?ll?r? available to cover tuiti?n ?nd living expenses thr?ugh ?riv?t? ?r f?und?ti?n?l ??h?l?r?hi??. While ??m??titi?n f?r scholarships ??n b? t?ugh, it ???? t? f?mili?riz? ??ur??lf with thi? inf?rm?ti?n f?r in ?dv?n?? ?nd ???l? for as m?n? as ??u ?u?lif? f?r.Wh?t is th? m?di?n income of ?tud?nt? fr??h out of th? ?r?gr?m?Gr?du?t? ??h??l? ?h?uld h?v? ?v?r?g? ?r m?di?n ??l?ri?? f?r r???nt gr?d?. If thi? d?t? i? n?t ?v?il?bl? through th? school w?b?it? or admission ?ffi??, ??u m?? b? ?bl? t? ?h??k in with r???nt graduates ?b?ut their ?x??ri?n?? or speak with a recruiter or hiring manager in ??ur field. Will your ??t?nti?l ???t-d?gr?? ??l?r? increase significantly within a f?w ???r?, or will the ???t? outweigh th? possible fin?n?i?l g?in?? If it’? th? l?tt?r, ??u may w?nt to consider lower-tier ??h??l? willing to provide more funding ?r j?in a part-time ?r?gr?m ?? you can w?rk t? ?ff??t the ???t?.C?n I ?ff?rd t? attend graduate ??h??l?The ???t ?f gr?du?t? school v?ri?? ?ignifi??ntl? among di??i?lin?? and programs. You will in?ur b?th upfront ???t? (i.?. tuition and cost-of-living), as w?ll ?? hidd?n ???t? (lik? l??t income ?nd d?l???d entry t? the ??l?r? ladder).N?t all gr?du?t? schools offer full fin?n?i?l support, so you m?? need t? ?ur?u? ?ut?id? ??h?l?r?hi?? ?r r?l? ?n l??n?.Ag?in, consider ??ur ??r??r goals ?nd whi?h d?gr?? you will truly n??d. Su????? Jane ?nd Joseph begin graduate school at the ??m? tim?. Joseph ??rn? a Master’s degree in two ???r?, and he ?t?rt? a job ?t $60,000/year. Jane, m??nwhil?, ??rn? a PhD. Sh? lands a j?b ?ft?r ?ix ???r?, at a ??l?r? of $80,000/???r.Joseph ???nt $100,000 ?n tuition ?nd living expenses for the tw? ???r? he w?? in ??h??l, but th?n h? b?g?n ??rning m?n??. J?n? paid n? tuiti?n, ?nd ?h? even ??rn?d $20,000/???r ?? a t???hing assistant. 10 ???r? after Jane ?nd Joseph b?g?n school, J????h will have a n?t income ?f roughly $380,000 ($60,000 x ?ight years â€" $100,000 in school expenses).J?n?, m??nwhil?, has earned $320,000 (f?ur ???r? ?f w?rk ?t $80,000, ???uming her ?ti??nd ??n??l? out her living ?x??n???). M??nwhil?, Justine opted ?g?in?t gr?du?t? ??h??l, ?t?rting ?ut ?t $30,000/year. Ev?n when ???uming n? raises in 10 years, Justine will h?v? ??rn?d $300,000 â€" comparable to J?n? with h?r PhD. Wh?n ??u f??t?r in th? effect of r?i??? and student l??n interest, this scenario becomes tri?ki?r, but the ??int i? th?t no ?h?i?? i? ?? ?bvi?u? as it fir?t ???m?.This m?? ??und discouraging, but there ?r? f?nt??ti? job opportunities f?r ?tud?nt? wh? ?tt?nd gr?du?t? ??h??l.H?w?v?r, they are n?t guaranteed.The trick is to d? your r????r?h â€" find out if the ??th you imagine genuinely ?xi?t?, ?nd if you ??n ?ff?rd it â€" before you b?gin th? application process.GRAD SCHOOL CAN BE WORTH IT IF YOU PICK WISELYTh?r? i? a sharp ??ntr??t between h?w graduate ??h??l ?tud?nt? ?nd undergraduate ?tud? nt? ???r???h ???ing f?r th?ir education.Whil? ??r?nt? t??i??ll? ??? the bulk ?f tuiti?n for b??h?l?r’? degrees, those pursuing advanced d?gr??? ?r? l?rg?l? l?ft t? their ?wn d?vi???. As a result, gr?d ?tud?nt? need to m?k? ??r?ful d??i?i?n? about the r?turn ?n inv??tm?nt f?r th?ir ???tl? d?gr???.Gr?du?t? ?tud?nt? ?r? f??ting m?r? th?n h?lf of th?ir ?du??ti?n bill? with l??n? in their ?wn n?m??, according t? th? How Am?ri?? P??? f?r Gr?du?t? School report fr?m ?tud?nt loan l?nd?r S?lli? M??.The r???rt ??ll?d ???t-????nd?r? ?tud?nt? ?n how th?? ??? f?r ??h??ling. The ?tud? found th?t ju?t 15 ??r??nt ?f th?ir educational funding ??m?? from gr?nt? ?nd ??h?l?r?hi??. A quarter ?f th? ?v?r?g? $24,812 ??r-???r tuiti?n bill comes dir??tl? fr?m student ??rning?, and h?rdl? ?n? comes fr?m family ??ntributi?n?, ????rding t? th? ?tud?.F?r th??? ?tud?nt?, th? ???t? ??n b? ?n?rm?u?, ?????i?ll? f?r l?w ?nd m?di??l ?r?gr?m?, but the rewards ??n b? ju?t ?? big. Alm??t 60 ??r??nt ?x???t t? make $20, 000 m?r? a ???r th?n th?? w?uld h?v? without a d?gr??, ????rding to S?lli? Mae report.Su????? depends on wh?th?r th? ?tud?nt? pick a program ?nd ?ur?u? a career th?t will pay ?ff for th?m in the ?nd.How your ?r?gr?m will ??tu?ll? help your j?bY?u might be ?ur?ri??d b? th? number of people who ???l? t? gr?du?t? programs f?r r????n? ?f convenience (“I ??n’t get a j?b right now”) or ??nfu?i?n (“I’m not ?ur? wh?t I w?nt t? d?”). B?f?r? m?king any d??i?i?n?, ?t?? t? reflect ?n wh?th?r earning a graduate d?gr?? will ?r?vid? a ??n?r?t? benefit to ??ur career or ??r??n?l lif?. Here are ??m? additional questions to consider.Wh?t is the m???ur?m?nt ?f ?u????? with thi? degree?H?w d? m??t d?gr?? ??ndid?t?? ?nd faculty m?mb?r? in your ?r?????tiv? ?r?gr?m m???ur? ??r??r ?u?????? Is it th? ??m? w?? ??u d?? If ??ur ?v?ntu?l g??l i? t? b???m? a ??ll?g? ?r?f????r, ?ur?uing a d??t?r?t? i? a good inv??tm?nt, ?? Ph.D. ?urri?ul? ?r? g??r?d toward helping th??? who w?nt t? w?rk in ???d?mi?. B ut if ??u wish t? b? a legal writ?r, earning ?n M.A. in Engli?h may n?t n??????ril? b? the b??t use ?f ??ur tim? ??m??r?d t?, ???, a ??rtifi??t? ?r?gr?m in that fi?ld. If th? m?j?rit? ?f th??? wh? gr?du?t? with your intended d?gr?? ?r? striving t? d? ??m?thing diff?r?nt th?n ??u ?r?, it may b? w?rth r?-?v?lu?ting ??ur ?h?i?? ?f ?r?gr?m.What i? the competition like?It’s im??rt?nt t? kn?w who ?nd what ??u’r? u? against ?r?f???i?n?ll?. If ??ur goal i? t? t?k? ?n a management position in a growing ??m??n?, ?n M.B.A. will probably h?l? you beat ?ut other ??ndid?t?? and w?uld thu? b? a g??d inv??tm?nt. However, ??m? fi?ld? prioritize ?x??ri?n?? ?v?r ?du??ti?n, ?? ??rning a d?gr??â€"wh?n ??u ??uld b? learning in th? r??l w?rldâ€"might ??tu?ll? hurt ??ur ??r??r ?r?????t? in the long run. S???k with r??ruit?r? ?r ?rr?ng? inf?rm?ti?n?l interviews with businesses th?t interest you to ??k their ??ini?n on wh?t trul? makes a ??ndid?t? ?t?nd out and whether a graduate d?gr?? i? n??????r?.What does r????r?h look like in ??ur fi?ld?Many students ?nr?l in graduate ?r?gr?m? with th? int?nt of ??ntributing knowledge t? th?ir field through a th??i? or dissertation or even ki?king ?ff a career in r????r?h. H?w?v?r, it’s important t? ??n?id?r th? ?urr?nt outlook ?f research in ??ur fi?ld ?nd h?w your program fits int? it b?f?r? committing.It is a di???ur?ging f??t th?t f?d?r?l funding f?r b??i? research, which normally makes u? the bulk of research funding univ?r?iti?? receive, h?? b??n steadily declining ?in?? 2010. Unless r????r?h?r? ??n ?ff??tiv?l? plead their ???? in th? h?ll? ?f C?ngr??? (whi?h, fr?nkl?, h??n’t g?n? well ?? far), competition f?r gr?nt? will lik?l? r?m?in ?xtr?m?l? high. St?rt investigating h?w ??ur ??h??l ??n b??t support your research int?r??t? in th? l?ng run: Are th?r? administrators ?v?il?bl? to help n?vig?t? the endless m?z? ?f rul?? ??rt?ining t? gr?nt applications? Are th?r? f??ult? m?mb?r? ?lr??d? d?ing r????r?h in ??ur ?r?? of interest, and wo uld th?? be ???n to hiring graduate ???i?t?nt?? Talking with ???n??r?d funding administrators or f??ult? ?t ??ur prospective institution will give ??u ?n id?? ?f h?w much school m?n?? i? ?v?il?bl?, what type of ?u???rt ???t?m students r???iv? wh?n ??m??ting f?r f?d?r?l gr?nt?, ?nd wh?th?r faculty m?mb?r? who r???iv? sponsored funds w?uld b? willing to ??ll?b?r?t? ?r help you ???k independent ????rtuniti??.SummaryWh?n youre weighing the ???t ?f g?ing b??k to gr?d ??h??l after a f?w ???r? of w?rk, d?nt think ?b?ut what youll b? ??rning ?n?? ??u gr?du?t?. Think ?b?ut what youll b? ??rning for the n?xt fiv? to ten years.B? sure that you h?v? a v?r? ?tri?t ?l?n, Im doing thi? to maximize not what I make wh?n I gr?du?t?, but Im d?ing this ?t 35 so ?t 45 Im h???r-???iti?n?d to b? m???iv?l? ?u?????ful ?nd t?k? ?dv?nt?g? ?f th? next 10 years.The ??ri?d ?f ages 35 to 50, f?r most people, ?r? ??ur peak ??rning ???r?, ?? wh?t?v?r I ??n d? in m? 30s ?r?und ??h??l, I want th?t t? m?x th??? ???k ? ?rning ???r?. I d?nt w?nt to b? ?? ??n??rn?d with what I ??n g?t at 36, but that wh?t Im d?ing during ??h??l i? g?ing t? m?ximiz? th??? ???k earning ???r? f?r m?.Data ??m?il?d b? P??S??l? suggests that m??t people will never ??rn m?r? th?n th?? d? in their 40?, their ???k earning ???r?. College-educated m?n? ??rning? peak ?t an average ?g? of 48, while womens ??rning? ???k ?t 39. (P??S??l? ?ttribut?? th? di???rit? t? j?b ?h?i?? ?nd family r????n?ibiliti??.) B? th?ir 40s, m??t ????l? have completed th?ir ?du??ti?n, secured some ?r?m?ti?n? and raises, and ??rn?d accordant paychecks.A lot ?f ????l? do m?n?? gr?b? in th?ir 30?, but d?nt think ?b?ut th? future, ?b?ut th? point at whi?h their income ???k?. With ?tud?nt l??n? ?nd what it? ???ting, I want to b? ?ur? th?t Iv? g?t a v?r? g??d ?l?n ?r?und wh? Im g?ing, I want t? be ?ur? th?t Im picking the right school f?r wh?t I want t? d?, not ju?t th?t Im g?ing t? th? local b??t university b???u?? its wh?t I can ?wing. If thats n?t r??ll? g ?ing t? enhance ??ur hum?n ???it?l f?r ?x??tl? wh?t ??u want to d?, ??u might ju?t be bl?wing $100,000.Thi? ???t ??tim?t? ??und? outlandish but i?nt off-base. Th? bill f?r school can b? ?t???, whi?h i? wh? its so im??rt?nt th?t it? ?ff??t b? future earnings. At th? Wharton S?h??l, for in?t?n??, tuiti?n ?nd f??? ???t $73,634 ?nnu?ll?â€" but gr?du?t?? ??rn ?n ?v?r?g? salary ?f ?b?ut $155,000. At Harvard Bu?in??? School, annual tuiti?n and fees are $75,353â€" ?nd the ?v?r?g? ?t?rting salary for graduates i? about $154,000.JOBS THAT REQUIRE A GRADUATE DEGREEChi?f Ex??utiv? Offi??rAv?r?g? S?l?r?: $173,350 (but with in??ntiv?? ?nd b?nu???, ??m??n??ti?n ??n r???h th? millions)Th? CEO’? j?b is to l??d th? ??m??n?. CEOs ?r? ?ft?n directly involved in initiating ?nd driving the ??m??n?’? m??t significant initi?tiv??. B???u?? of this l??d?r?hi? r?l? within th? company, th? CEO is n?rm?ll? th? high??t ??id ???iti?n in bu?in???.Edu??ti?n: Many CEO? h?v? ?dv?n??d d?gr??? in th?ir fi?ld of ??? ?i?lt?, and most h?v? ?t l???t an MBA.Earning a M??t?r’? in Business Admini?tr?ti?n, ?r MBA, i? the b??t ?du??ti?n?l ?t?? ?n? can take t?w?rd? b???ming th? CEO of a ??m??n?. Th? larger ?nd m?r? ?r?fit?bl? th? company, th? more a CEO may m?k?. In the largest ??m??ni?? ?n the ?l?n?t, lik? Facebook, CEO? m?? ??rn ?? mu?h ?? f?ur million in a ?ingl? ???r. A CEO i? th? k?? decision maker f?r a ??m??n?, and th?? plan ?tr?t?gi?? for th? l?ng ?nd ?h?rt t?rm future whil? m?n?ging m?n? ?????t? ?f d?il? ???r?ti?n?.C?rtifi?d R?gi?t?r?d Nur?? An???th?ti?tAv?r?g? Salary: $151,139Wh?t th?? d?: C?rtifi?d r?gi?t?r?d nur?? ?n???th?ti?t? (CRNA?) ?dmini?t?r anaesthesia t? ??ti?nt? before and after ?urgi??l, di?gn??ti?, th?r???uti?, ?nd obstetrical ?r???dur??. Th?? ?l?? ?r?vid? ??in m?n?g?m?nt ?nd emergency ??rvi???, including ?irw?? m?n?g?m?nt. CRNA? also ?v?r??? th? h??lth of patients ???t-?urg?r?. Th??’r? ?n ?dv?n??d ?r??ti?? r?gi?t?r?d nurse.CRNA? can w?rk independently. Th?ir practice v?ri?? by ?t?t?. Th?? ?r?vid? ?n???th?ti?? t? patients in ?v?r? practice ??tting and f?r ?v?r? t??? ?f surgery ?r ?r???dur?. Th??’r? th? only anaesthesia-providers in m??t rur?l h???it?l?.CRNA? n??d a b??h?l?r’? degree in nur?ing, ?r ?th?r appropriate b??h?l?r’? d?gr??, and ?t l???t a m??t?r’? d?gr?? fr?m ?n ???r?dit?d nur?? ?n???th??i? ?du??ti?n?l ?r?gr?m. Th? ?r?gr?m? take 24 t? 36 months to ??m?l?t?, ?nd r??uir? a ?urr?nt registered nur??’? li??n??. CRNA? h?v? to ???? a national ??rtifi??ti?n ?x?min?ti?n ?nd h?v? ?t least ?n? ???r ?f w?rk ?x??ri?n?? in ?n ??ut?-??r? nursing setting, such as a ?urgi??l int?n?iv?-??r? unit ?r a m?di??l intensive-care unit.Clini??l TherapistsAverage S?l?r?: $150,000Priv?t? practice ?lini??l th?r??i?t? often run th?ir bu?in????? out ?f home ?ffi???, ?nd independently practice th?r???uti? t??hni?u?? to treat th?ir ?li?nt?. To ?nt?r int? such private ?r??ti??, ?n? h?? to fir?t earn a bachelor’s ?nd then ?ur?u? a m??t?r’? degree (2 years) in ?lini? ?l th?r???. It i? ??mm?n f?r th?r??i?t? t? then ?ur?u? a d??t?r?t? in ?lini??l th?r??? (2 years) b???u?? the success ?f ?riv?t? ?r??ti?? hing?? ?n the ????l?d?? ?nd r????rt of th? ?r??titi?n?r.Thi? ind???nd?n?? i? b?th a w??kn??? ?nd ?tr?ngth ?f this ??r??r path. It ?ll?w? th? individu?l t? ??lf-m?rk?t, establish self-made h?ur?, ?nd ??t th? fee for ??rvi??? ?ff?r?d, whi?h ?r??t?? high-?nd ??l?ri?? r???rt?d t? r?ng? most ??mm?nl? from 150,000 t? 200,000 ?nnu?ll?.Architectural and Engin??ring M?n?g?rAverage S?l?r?: $125,900Ar?hit??tur?l ?nd ?ngin??ring m?n?g?r? use th?ir kn?wl?dg? ?f ?r?hit??tur? ?r engineering to oversee a variety of ??tiviti??. They m?? dir??t ?nd coordinate ?r?du?ti?n, ???r?ti?n?, ?u?lit? ???ur?n??, t??ting, ?r m?int?n?n?? ?t manufacturing ?it??, industrial plants, engineering ??rvi??? firm?, ?nd r????r?h-?nd-d?v?l??m?nt l?b?r?t?ri??.Architectural ?nd engineering m?n?g?r? are r????n?ibl? f?r d?v?l??ing the ?v?r?ll ??n???t ?f a new ?r?du?t ?r f?r ??lving t??hni??l ?r?bl?m? preventing th? ??m?l?ti?n ?f a project. T? accomplish th?ir aim, th?? must d?t?rmin? technical g??l? ?nd produce d?t?il?d plans.Fin?n?i?l ManagerAv?r?g? Salary: $116,970Fin?n?i?l M?n?g?r? oversee the fin?n?i?l workings ?f a company. Titl?? can in?lud? CFO, C?ntr?ll?r, ?nd VP ?f Fin?n??.Th??? individuals ?r? r????n?ibl? for most, if n?t ?ll ?r??? ?f finance in?luding ???r?ll, forecasting, investment, banking, insurance, ???uriti?? and ?ll other fin?n?i?l ?????t? ?f a giv?n branch, office or department ?f th?ir ??r??r?ti?n.Indu?tri?l-Org?niz?ti?n?l P???h?l?gi?tAv?r?g? Salary: $114,040Indu?tri?l-Org?niz?ti?n?l Psychologists ?r? hum?n efficiency experts wh? ????i?liz? in w?rking with companies ?nd corporations t? k??? ?m?l????? efficient, healthy, ?nd w?rking h?rd. Th? m?j?rit? of industrial-organizational psychologists ?nt?r th?ir careers with a m??t?r’? in I/O ????h?l?g?, but ??l?ri?? in?r???? ?ub?t?nti?ll? with doctoral ?du??ti?n.Th? indu?tr? for thi? ??r??r is one ?f th? m??t ?t?bl? ?nd ?x??nding on thi? list. Companies around the world ?r? d?di??ting time ?nd m?n?? t? m?king th?ir employees m?r? ?ffi?i?nt and h???i?r, ?nd ?r? hiring I/O psychologists right out ?f ??h??l t? make thi? happen. And, ?? the number of j?b ????rtuniti?? in this fi?ld in?r?????, so d? th? m??n ?nnu?l ??l?ri??.Computer ?nd Information R????r?h ScientistAv?r?g? Salary: $103,000C?m?ut?r ??i?nti?t? develop n?w t??hn?l?gi??, systems ?nd ??m?ut?r-b???d ??luti?n?. A? theorists, designers ?r inventors, they d?v?l?? solutions in a variety ?f ??nt?xt?, ??rti?ul?rl? ?t computer hardware ?nd software companies.C?m?ut?r ??i?nti?t?, also called ??m?ut?r ?nd inf?rm?ti?n scientists, ??n work f?r g?v?rnm?nt agencies and ?riv?t? ??ftw?r? ?ubli?h?r?, ?ngin??ring firms ?r ???d?mi? institutions. Bu?in????? ?nd government ?g?n?i?? u?u?ll? ?m?l?? th??? scientists t? develop new ?r?du?t? or ??lv? ??m?uting ?r?bl?m?.C?m?ut?r ??i?nti?t? ?m?l???d b? academic institutions ?r? typically inv?lv?d in mo re th??r?ti??l explorations ?f computing i??u??, ?ft?n u?ing experimentation ?nd m?d?lling in th?ir r????r?h.Nu?l??r Engin??rAv?r?g? S?l?r?: $100,350Nu?l??r ?ngin??r? d??ign build, ?nd ???r?t? or ??f?l? d???mmi??i?n nuclear ??w?r f??iliti?? (?l???? wh?r? r?di?ti?n is u??d). Th?? ?l?? work with nu?l??r ?r??ul?i?n of ??????r?ft, ?hi??, or ?ubm?rin??, ?nd the m?n? m?di??l u??? of radiation.A nu?l??r engineer w?rk? with ?t?mi? ??rti?l??, ??rh??? t? ??f?l? dispose ?f nu?l??r w??t?, h?l? ?h??i?i?t? study the basic ?tru?tur? ?f the universe, build weapons, or develop n?w w??? ?f diagnosing diseases. N?b?d? ?h?uld ju?t fool ?r?und with nuk??, ?? ??u u?u?ll? n??d ?t least a M??t?r’? d?gr??.B???u?? nuclear i? ?ft?n ??ntr?v?r?i?l, ??m? career ????rtuniti?? m?? d???nd on the ??liti??l climate, ?? ??ur??? in ???i?l sciences ?r? worth considering.Th?? may h?l? you und?r?t?nd ??nundrum? ?u?h ?? this: M?n? ????l? who f??r nu?l??r energy sources for th?ir home will accept r?di?ti?n f?r th?ir b?di? ? if th?? n??d ??n??r treatment.Human Resources Senior OfficerAv?r?g? S?l?r?: $99,200A hum?n r???ur??? official oversees the HR department ?f ??m??ni?? ?nd i? r????n?ibl? f?r th? ??tiviti?? th?t t?k? ?l??? th?r?. Av?r?g? ??l?ri?? for thi? ?r?f???i?n ?r? around ninety six th?u??nd dollars. Th??’ll supervise HR workers whil? ensuring th?t all ?????t? ?f th? d???rtm?nt run ?m??thl?. This u?u?ll? involves a large numb?r ?f diff?r?nt r????n?ibiliti?? related dir??tl? t? hum?n r???ur???.Things lik? benefits ?dmini?tr?ti?n, ?m?l???? compensation, ??rf?rm?n?? reviews, di??i?lin?r? ??ti?n, ??id time off m?n?g?m?nt, hiring and t?rmin?ti?n, and m?r? ?r? included in the fi?ld. Th?? ?l?? t?k? time t? d?v?l?? new bu?in??? ?tr?t?gi?? based ?n HR m?d?l? th?t ??n b? ???li?d t? im?r?v? ?r?du?tivit? ?nd boost a ??m??n?’? b?tt?m lin?.Cardiovascular P?rfu?i?ni?tAv?r?g? S?l?r?: $93,500Cardiovascular ??rfu?i?ni?t? m?int?in h??rt ?nd lung function during ???n-h??rt operations, vascular ?urg?r?, and ?rt h????di? ?nd ?th?r medical procedures.During ?urg?r?, a ??rdi?v???ul?r ??rfu?i?ni?t operates b????? machines ?nd ?th?r ??ui?m?nt th?t t?m??r?ril? controls a ??ti?nt’? ?ir?ul?ti?n ?nd r???ir?t?r? fun?ti?n.Th??? in th? ?r?f???i?n are r??uir?d t? graduate fr?m ?n accredited ?r?gr?m whi?h m?? t?k? from ?n? t? four ???r? t? complete. S?m? employers r??uir? a bachelor’s d?gr??.Typically, ???li??nt? ?r? r??uir?d to ??m?l?t? a wid? array of ??ll?g?-l?v?l ??i?n?? and m?th ??ur??? b?f?r? enrolling in a program.Nur?? Pr??titi?n?rAv?r?g? S?l?r?: $90,770Nur?? ?r??titi?n?r? ??rv? as primary- and ????i?lt?-??r? ?r?vid?r?. Nur?? ?r??titi?n?r? ?r?vid? diagnosis, treatments, and consultations. Th?? ?du??t? ??ti?nt? r?g?rding ?r?v?ntiv? ??r? ?nd th?ir ?r???rib?d tr??tm?nt?. S?m? nur?? ?r??titi?n?r? ??rv? ?? a ??ti?nt’? primary h??lth??r? ?r?vid?r.Th?? ??n work ind???nd?ntl? or ?? ??rt of a treatment t??m. S?m? nur?? ?r??titi?n?r? prescribe m?di??ti?n?.A???rding t? th? American Nurses A????i?ti?n , about 60 t? 80 percent of ?rim?r? ?nd preventive ??r? ??n be performed b? nurse ?r??titi?n?r?.Th??’r? in?r???ingl? ?ttr??tiv? t? h??lth??r? ?m?l???r? because they ??n ?r?vid? a l?t ?f th? h??lth??r? typically provided b? ?h??i?i?n? and th?? r???iv? l??? pay.H?r? ?r? some of th? most ??mm?n ????i?lti??:F?mil? ?r??ti??W?m?n’? healthAdult ?r??ti??A?ut? carePaediatricsGeriatricsNur?? ?r??titi?n?r? need ?t l???t a M??t?r of Science in Nur?ing (MSN) d?gr??. Th? ?r?gr?m u?u?ll? t?k?? two to three ???r? t? complete. A??li??nt? to ?n MSN program are required t? h?v? a ?ri?r B??h?l?r ?f S?i?n?? in Nur?ing (BSN) ?r B??h?l?r’? D?gr?? in Nursing (BDN) d?gr??.This i? one ?f th? fastest growing t???? ?f m?di??l and health ??rvi?? m?n?g?r? in the country. A? a hospital ?dmini?tr?t?r, you will m?n?g? ?nd direct th? m?di??l ??rvi??? f?r ??ur h???it?l, department ?r ?lini??l ?rg?niz?ti?n.Hospital ?dmini?tr?t?r? w?rk t? b???t th? ?ffi?i?n?? ?nd ?u?lit? in delivering all types ?f h??lth ??r? ??r vi??? in their ?rg?niz?ti?n. Y?u ?l?? may ?r?vid? ?u??rvi?i?n ?f assistant ?dmini?tr?t?r? in a h???it?l th?t is big ?n?ugh t? need th?m.School CounsellorAv?r?g? S?l?r?: $53,000Y?u kn?w ?ll ?b?ut ??h??l ??un??l?r?. They work with ?tud?nt? in ?l?m?nt?r?, middl? ?nd high ??h??l? t? ?r?m?t? m?nt?l health and well-being. Th?? may ?l?? help ?tud?nt? with ??rt?in ???i?l ?nd d?v?l??m?nt?l n??d? receive ?r???r educational care. P?r?nt?, th? ?r???, ?dmini?tr?t?r? ?nd th? general public ?ft?n w?nd?r ju?t what school ??un??ll?r? do ?n a d?il? basis.G?n? are th? days ?f ??h??l counsellors ?itting in th?ir office simply handing ?ut ??ll?g? applications, m?king ??h?dul? ?h?ng?? f?r ?tud?nt? wh? want t? dr?? a ?l??? ?r m??ting with the troublemakers in the ??h??l. T?d??, th?? help ?ll ?tud?nt? in th? ?r??? of ???d?mi? ??hi?v?m?nt, ??r??n?l/???i?l development ?nd ??r??r d?v?l??m?nt, ?n?uring today’s ?tud?nt? b???m? th? productive, w?ll-?dju?t?d adults ?f tomorrow.A ??uti?n?r? w?rd: hiring m?? be l imited, du? t? ?l?w gr?wthâ€"?r d??lin?â€"in school funding from ?t?t? and l???l governments.HOW DO YOU KNOW WHEN GRAD SCHOOL IS RIGHT FOR YOUWhen ??u h?v? financial helpAb?ut 60 ??r??nt of employers provide tuiti?n ???i?t?n?? f?r w?rk?r? wh? attend grad ??h??l. Tuiti?n r?imbur??m?nt reduces turn?v?r and increases ?r?du?tivit?.Tuiti?n ???i?t?n?? programs vary with ???h ?m?l???r, ju?t lik? 401k m?t?hing programs. Companies can ??? f?r as mu?h as ?n entire degree or ?? little as ?n? ?l??? a ??m??t?r.Ask ??ur HR department if they ?ff?r a tuition program ?nd wh?t ??u need to qualify. E??h firm h?? th?ir ?wn eligibility r??uir?m?nt?, which will usually include a minimum ?m?unt ?f h?ur? w?rk?d. S?m? ??k th?t you get a degree in a fi?ld r?l?t?d t? ??ur current j?b. M? ?ld employer ?ff?r?d tuition r?imbur??m?nt t? ?m?l????? who h?d a 3.0 GPA or higher.You should ?l?? ???l? f?r scholarships, grants and fin?n?i?l ?id. Y?u might qualify for a full rid? d???nding on ??ur ??l?r?.When th?r?’? a gu?r?nt??d r?i??Some j?b? ?ut?m?ti??ll? provide salary increases t? ?m?l????? wh? ??rn a graduate degree. F?r ?x?m?l?, many teachers go back t? ??h??l because th?? ??n g?t a higher ??l?r? with a M??t?r’? d?gr??.On ?v?r?g?, t???h?r? with a M??t?r’? can ??rn $7,000 m?r? th?n those ?nl? with ?n undergraduate education. S?m? ??h??l di?tri?t? ?l?? offer stipends or gr?nt? t? h?l? fund a t???h?r’? education. Thi? is u?u?ll? ?nl? typical with uni?niz?d ???iti?n?, so ??k ??ur b??? if ?n ?dv?n??d d?gr?? will g?t ??u a raise.HOW DO YOU KNOW WHEN GRAD SCHOOL IS A BAD IDEA FOR YOUWhen it’? ?n ?x??n?iv? decisionFollowing ??ur dreams is a noble g??l, but n?t at th? ?x??n?? of your fin?n?i?l futur?. Grad ??h??l costs b?tw??n $30,000 ?nd $40,000 a year on average, d???nding ?n wh?t kind of univ?r?it? you ?h????.Sin?? th? ?v?r?g? ?urr?nt und?rgr?du?t? has m?r? th?n $30,000 in student l??n?, g?ing b??k t? ??h??l ??n lead to d?ubl? th? d?bt load.Wh?n it’? not n??????r? for ??ur ??r??rJ?urn ?li?t? f?r ?x?m?l?? d?n’t get better jobs b???u?? th??’r? educated. Th?? g?t b?tt?r ????rtuniti?? because th??’v? ?r?v?n th?ir w?rk in th? fi?ld b? breaking stories, winning ?w?rd? ?nd ?r?viding ??lid ??nt?nt t? their readers.While ??m? graduate ??h??l? ?r?vid? ?tud?nt? with lots of valuable n?tw?rking ????rtuniti??, th??’r? ?ft?n not necessary t? furth?r your ??r??r.WHAT TO DO INSTEADIf ??u ?r?n’t ?ur? if gr?d ??h??l i? right for ??u, there ?r? ?th?r ??ti?n? ??u can ?x?l?r?.Find an int?rn?hi?G?tting work ?x??ri?n?? can b? a d???nt substitute f?r gr?d school, ?????i?ll? ?in?? it doesn’t ???t ?n?thing. If possible, l??k for a ??id int?rn?hi? ?? you w?n’t rely on ?r?dit ??rd? t? ??? your way.Look for alternative ????rtuniti??Y?u don’t h?v? t? g? t? grad ??h??l in ?rd?r t? get an ?du??ti?n. For ?x?m?l?, ??ftw?r? companies often offer 10-week b??t??m?? th?t t???h aspiring d?v?l???r? the l?t??t ??ftw?r? l?ngu?g?.Th? b??t??m? is free in ?x?h?ng? for ?tud?nt? ?gr??ing to a lower ??l?r? f?r at least two ???r?. Thi? t??? ?f apprenticeship gets ??u in th? w?rkf?r?? faster th?n gr?d ??h??l and for l??? m?n??.W?b?it?? lik? Ud?m? ?nd G?n?r?l A???mbl? ?l?? ?ff?r ?ff?rd?bl? online ?l????? that can giv? ??u a head start ?n wh?t?v?r ??u’r? int?r??t?d in.St?rt doing wh?t ??u’r? passionate ?b?utSince I’ve been freelance writing f?r a ??u?l? ???r? now, I often get ?u??ti?n? fr?m ?th?r people on h?w th?? ??n g?t started. I always tell th?m to ju?t ?t?rt writing.If ??u w?nt to b? a writ?r, write. If ??u want t? be a ??d?r, code. Obvi?u?l? you’ll need to expand your kn?wl?dg? at some ??int, but diving h??dfir?t int? ?n activity i? ?lw??? th? best w?? t? figur? ?ut ju?t what ??u n??d t? l??rn.So m?n? jobs d?n’t require a grad d?gr?? to prove ??u’r? ????bl?. If ??u w?nt to b? a w?dding ?h?t?gr??h?r ?nd d?n’t h?v? any experience, t?ll everyone ??u kn?w ??u want t? b? a w?dding photographer. Be willing to ?h??t your fir?t ??u?l? weddings for fr??.Post ??ur availability ?n Cr?ig?li?t, create a website ?n S?u?r?????? and ?t?rt a Facebook page. On?? ??u have a few weddings und?r your b?lt, ??u can ?t?rt ?h?rging. Y?u can use thi? strategy with writing, gr??hi? d??ign, b?king ?nd more.FREQUENTLY ASKED QUESTIONS (FAQs)Can I get the ??m? job with?ut a m??t?r’? d?gr???It i? ?lw??? a good id?? to d? ??ur research about th? ??r??r ??th you h?v? ?h???n. If ??u h?v? a B??h?l?r of Art? in P???h?l?g?, th?r? i? v?r? littl? you can do in th? field without a Master’s degree ?r D??t?r?t?.F?r example, if ??ur int?r??t is w?rking with females wh? struggle with ??ting di??rd?r?, it i? highl? n??????r? th?t you ??ntinu? ??ur education. With?ut th? ??m?l?ti?n ?f a M??t?r’?, ??u w?uld not b? ?bl? to ?ur?u? th?t dream j?b.H?w will the d?gr?? improve m? ??r??r?If ??u’v? ?lr??d? spent ??m? tim? in the j?b m?rk?t ?nd you’re g?tting the ?dv?n??d d?gr?? t? improve ??ur ?r?????t?, th?n ??u’r? ?r?b?bl? in th? right ?l???.M?k? ?ur? that the ?dv?n??d degr ee will g?t you wh?r? ??u w?nt to b? b? talking with ??ur current ?m?l???r ?nd even your und?rgr?du?t? career ?ffi??. Most h?v? ?lumni ??rvi??? for ??r??r counselling ?nd have people wh? are h???? t? h?l? you ??rt thr?ugh th? ??r??r b?n?fit? ?f a gr?du?t? d?gr??.If ??u’r? ?b?ut to gr?du?t? with a b??h?l?r’? d?gr??, ?nd you are un?ur? if a graduate degree will help ??ur career ??th, then ??u ?h?uld d?finit?l? t?lk with ??ur univ?r?it? or college ??r??r ?l???m?nt ?ffi?? ?nd your advisor.What will my ??r??r path b? ?n?? I earn m? gr?du?t? d?gr???Wh?t ??r??r(?) will ??ur ??t?nti?l gr?du?t? d?gr?? qualify ??u f?r? In some fi?ld?, ?u?h ?? nur?ing, your career ??th may b? relatively clear. Oth?r subjects â€" lik? history â€" m?? not l?nd th?m??lv?? t? the ??m? ?l?rit?. B?f?r? you b?gin ???l?ing t? graduate ??h??l?, do your r????r?h, ?nd ensure th?t th? programs ??u are ??n?id?ring will truly l??d ??u t? ??ur int?nd?d ??r??r.Y?u can ????m?li?h thi? goal b? ????king t? th? ?r?gr?m direct or at ???h ??h??l, as well as to f?rm?r ?tud?nt?. You ??n ?l?? u?? LinkedIn ?r a professional ?????i?ti?n in ??ur fi?ld t? connect with individu?l? wh? ?urr?ntl? h?ld ??ur dr??m j?b. If th?? ?r? willing t? ????k with ??u, ask them wh?t th?? wi?h they h?d kn?wn before starting gr?du?t? ??h??l. Y?u ??n also ask f?r ?dvi?? ?n th? ?r??ti??l ?????t? ?f th? fi?ld.If ??u ?l?n t? b???m? a ?r?f????r, n?t? th?t th?r? is a v??t disparity b?tw??n th? number ?f PhDs ?w?rd?d and the numb?r ?f ?r?f????r?hi?? available. Thi? pattern holds tru? f?r many ?ubj??t?. N?ti?nwid?, m?r? th?n 100,000 PhDs w?r? granted t? ?tud?nt? b?tw??n 2005 ?nd 2009. During that same tim? ???n, ?nl? 16,000 n?w professors were hired.Th? unf?rtun?t? truth i? that many colleges ?nd univ?r?iti?? are in?r???ingl? hiring ?djun?t? (?r low-cost, ??rt-tim? in?tru?t?r? who g?n?r?ll? r???iv? n? b?n?fit?) instead of professors.A h?ndful ?f lu?k? n?w graduates will h?v? th? id??l ??mbin?ti?n ?f exciting r????r?h, ??rf??t timing, and g r??t ??nn??ti?n? t? land a t?nur?-tr??k position, but i? th?t a ri?k you are willing to take?Wh?t ??r??nt ?f graduates ?nd up in th?ir ?h???n fi?ld within six months of gr?du?ti?n?Thi? i? a ?u??ti?n f?r the admission officers, ?tud?nt ?dvi??r?, or f??ult? members ?t ??ur ?r?????tiv? school.Ar? n?w gr?d? ??n?i?t?ntl? finding jobs in th?ir field soon after gr?du?ti?n, or ?r? they f?r??d t? take ?n ?th?r positions to earn a paycheck?Of ??ur??, this can v?r? b???d on fi?ld and ?r?gr?m; however, it ???? t? ????k with your school ?b?ut thi?, ?????i?ll? if ??u ?x???t t? ?t?rt in ??ur fi?ld just ?ft?r ??u complete ??ur ?tudi??.H?w will I pay f?r it?Thi? is the $25,000 ?u??ti?n, lit?r?ll?. Pr?b?bl? m?r?. Th? k?? h?r? is t? und?r?t?nd how mu?h d?bt ??u’r? willing to take on, ?nd h?w ??u plan t? pay it back. Your fir?t ?t?? i? t? understand your l??n ?nd fin?n?i?l aid ??ti?n?. If ??u n??d help, ??kâ€"??u ?h?uld n?v?r f??l like you d?n’t understand th? ?m?unt of m?n?? ??u’r? b?rr?wing.B?f ?r? ??u ?gr?? t? ?n?thing, make sure ??u have at least tw? ?l?n? f?r paying b??k any l??n?â€"thi? includes your timeline, t??. Y?u can g?t help d?t?rmining your m?nthl? ???m?nt? by u?ing loan calculatorsâ€"but even m?r? ?ff??tiv? is t? w?rk with a fin?n?i?l ?l?nn?r fr?m th? financial ?id ?ffi??.B?tt?m lin?: ??u need to ??n?lud? th?t the ?m?unt ?f d?bt and loan repayment i? w?rth it. If it’s n?t, r???n?id?r ??ur plans.Will a degree boost ??ur ??rning ??t?nti?l?B??id?? obvious fields lik? l?w ?nd medicine, career ??th? in science, technology, ?ngin??ring ?nd m?th â€" the STEM fields â€" ?? w?ll ?? bu?in??? and h??lth ??r? t?nd to g?t the bigg??t fin?n?i?l boost from a masters ?r d??t?r?t?.G??rg?t?wn d?t? show that in ?ngin??ring, f?r in?t?n??, a b??h?l?r? d?gr?? r?turn? $83,000 a ???r ?n ?v?r?g? whil? a masters pays $120,000; a doctorate ???? $150,000. P???l? with a m??t?r? d?gr?? in education r???iv? about $23,000 m?r? th?n those with a b??h?l?r?. And ????i?l education in?tru?t?r? with th? ?xtr? ?r?d?nti?l will see only ?b?ut $6,200 m?r?.A g??d g?ug? is th? Bureau ?f Labor St?ti?ti?? O??u??ti?n?l Outl??k Handbook. It ?r?vid?? an ?v?rvi?w ?n hundr?d? ?f jobs, ?x?l?ining d?il? job t??k?, ?du??ti?n, tr?ining and ?r?j??t?d salary.St??h?n Mangum, d??n of th? H??l?m C?ll?g? ?f Bu?in??? at th? University of Tennesseeâ€"Knoxville, ?um? up the k?? f??t?r? in th? v?lu? ??l?ul?ti?n: ??ur lik?l? ??rning? ?tr??m if ??u d? n?t pursue ?n ?dv?n??d d?gr?? versus ??ur ??rning? ?tr??m if ??u d? obtain ?n?, th? direct costs of th? additional ?du??ti?n ?nd th? ??rning? ??ull forgo while in ??h??l.If th? b?tt?m line f?v?r? gr?du?t? ??h??l, he says, then go f?r it.How Mu?h Does Gr?du?t? S?h??l Cost?A???rding t? FinAid.org, th? ?v?r?g? cost ?f master’s d?gr?? for students i? between $30,000 ?nd $120,000. Th? ???t v?ri?? depending ?n the univ?r?it? ?nd the m??t?r’? program it??lf.Th? ???t varies b? program ?? well. The average ???t ?f an MBA, for ?x?m?l?, i? $40,000. At m??t univ ?r?iti??, thi? i? what m??t?r’? d?gr?? gr?du?t?? will ???. S?m? in?tituti?n? h?v? programs f?r l???, ?nd MBA ?r?gr?m? ?t H?rv?rd or Stanford ??uld ???t in ?x???? of $120,000.Whi?h d? I ?h????? In-St?t?, Out-of-State, Onlin?, ?r On-C?m?u?H?w much a master’s degree will cost i? dependent on wh?r? ??u will take th? ??ur???. If ??u are l??king at a ?ubli? univ?r?it?, especially if paying in-?t?t? tuition, th? ???t will be l??? than ???ing ?ut-?f-?t?t? tuiti?n, going t? a ?riv?t? university, or both.F?r ?x?m?l?, th? ???t ?f full-tim? gr?du?t? tuition, ?t nin? ?r more credit h?ur?, ??r ???r at th? University of Michigan f?r ?ngin??ring ?tud?nt? i? $10,957 whil? ?ut of ?t?t? ?tud?nt? will ??? $20,616 ??r ???r, ?nd di?t?n?? l??rning students will ??? $1,244 f?r fir?t hour ?f ??ur??? in-state ?nd $1,372 per first h?ur f?r ?ut ?f state students with a ?light decrease in ???t f?r every hour after th?t.How mu?h d??? ?n ?nlin? master’s d?gr?? cost? An ?nlin? master’s d?gr?? program ??uld be l??? ?x??n?iv?. This is true for ??m? online m??t?r’? ?r?gr?m?, but r????r?h int? ???h institution and th? ???t of th?ir ?r?gr?m ?h?uld b? ??ndu?t?d in order t? determine th? ???t comparison.R?turn ?n InvestmentA???rding t? th? Census Bur??u, in the Unit?d States, graduates with a master’s degree t??i??ll? ??rn ?b?ut 15 percent high?r ?v?r?ll lifetime income, whi?h works ?ut to be ?b?ut $8,000 a ???r more, th?n th??? with bachelor’s degrees.In m??t ?????, master’s d?gr?? gr?du?t?? ??rn m?r? per ???r th?n ??rn?r? in the same field with only a bachelor’s d?gr??. C?r??rBuild?r r???rt? th?t ??m?ut?r ?r?gr?mm?r? ??rn $72,515 with a m??t?r’? degree and $50,985 with only a b??h?l?r’? d?gr??.S?, h?w much does a m??t?r’? degree cost? H?w much a student will ??? for a m??t?r’? degree v?ri?? b? program, d?liv?r? m?th?d, and in?tituti?n.Ov?r?ll, gr?du?t?? ?f master’s ?r?gr?m? will ??rn a high?r salary, and in many ?????, a master’s d?gr?? can ???n u? m?r? ????rtuniti?? in th? workforce.To answer the question: Is grad school worth the cost? You have to think about what you want out of it. For some, it is worth every penny, while it would be a waste of time and money for some others. It all boils down to preference. What do you want out of it? And that would answer the question. Remember to be smart about it.“Im w?rri?d I will leave grad ??h??l ?nd n? l?ng?r b? ?bl? to speak Engli?h. I kn?w thi? w?m?n in gr?d ??h??l, a fri?nd of a friend, ?nd just li?t?ning t? h?r t?lk i? scary. Th? semiotic di?l?ti?? ?f int?rt?xtu?l m?d?rnit?. Which m?k?? no ??n?? ?t all. Sometimes I f??l th?t th?? live in a ??r?ll?l univ?r?? ?f academia speaking acadamese instead of Engli?h ?nd th?? dont r??ll? know wh?t? happening in th? real world PhD m?d? m? ???r?r, with?ut m?n??, but ri?h?r in thoughts”. â€" Chim?m?nd?Ng?ziAdi?hi?, Americanah

Case Analysis of Brisbane Airport Corporation - 275 Words

Case Analysis of Brisbane Airport Corporation (Case Study Sample) Content: Running Head: CASE ANALYSIS OF BRISBANE AIRPORT CORPORATIONCase Analysis of Brisbane Airport CorporationCustomer Inserts His/her NameUniversity NameAnalysis of B2C business model in line with business model canvas:With the introduction of B2C mode of digital servicing strategy within its overall revenue and operational activities over the infrastructure of airport, Brisbane Airport Corporation (BAC) can accumulate several multiple and key advantages, which can positively increase its ultimate revenue base. Moreover, among its other mode of revenue means already established within the infrastructure of airport, BAC can particularly create its new streams of revenue within its financial statements, which can be termed as digital sources of revenue with the help of integration of Business model canvas into the core facets of B2C framework of business (Osterwalder, Pigneur Clark, 2010).Therefore, an in-depth analysis and strategic evaluation of present business growth p erspectives and aggregation of BAC digital revenues fields can be performed with the help of implementation of diversified aspects of business model canvas theories. Each aspects or fields of this model have been analytical discussed with regard to current business conditions of Brisbane Airport Corporation, in order to generate convenient means to enhance the companyà ¢Ã¢â€š ¬s overall revenue base.Key PartnersAvailability of sufficient base of business partners along with the strong hierarchy of suppliers forms a key position for any business establishments. Similarly, with the implementation of B2C digitized mechanisms into the infrastructure of BAC, a considerable scale of aspects would needed to be considered by the corporation, specifically in terms of its new base of partners and service providers. As B2C setup is primarily linking the organization business opportunities in terms of various digital services to its consumers directly, therefore, a range of suitable, reliable and competitive partners and suppliers would be required by enterprise (Ecock, 2011). This would help in successful implementation of dynamic phase of services into the physical atmosphere of airport. Likewise, as a result, a strong establishment would be created in airport in the form of various ranges of e services, including interactive cloud networking scenarios, Wi-Fi and other form of digital services. Thus, ideal partners for BAC in order to create vital business synergies would be IT companies involved in offering dynamic services, Service provides, E commerce business and related ones.Key ActivitiesA wide range of commercially untapped passengers in different localities of airport can be covered into the circuit of retail and commercial framework only, if BAC could successfully offer some high value propositions and creative value services to its potential customer range. Moreover, once the digital B2C service has been introduced and installed, they should be properly adver tised and promoted so that wide range of affected passengers could sustainable information about it (Fryars, 2012). Hence, distribution channels of airport including, digital retail outlets, service providers, marketing departments and online sales personnel formulates as the key components of this distribution channel and thus, each of these components must be in congenial coordination to ensure the digital network efficiency and its perfect operability over the airport atmosphere.Value PropositionsInstallation of B2C digital network should ensure some definite kind of services and value propositions to entire range of potential passengers of airport, i.e. covering 78% of commercially unutilized customers, who are bound to spend their time in waiting lounge of airport involved in some or other sort of activities. Hence, the introduction and extension of dynamic range of services should be implemented, which can effectively target majority of such passengers under its digital networ k. Such services may take the form of online shopping portals, Wi-Fi, Cloud networking, e banking and etc. The main aspects should be to cater the needs of large quantum of peoples presented in airport, in order to satisfy them and assuredly of repeat virtual business from them even after they left such place.Customer RelationshipsThis aspect of Business canvas model is quite significant from any business perspectives as it includes the most key factor that ultimate drives the revenue field for businesses (6w2x.com, 2014). As far as BAC is considered, they should introduce those services under its digital network plan which is substantially regarded from its high number of customers. This process might involve several activities to be performed by way of surveys, feedbacks and usage of questionnaires, in order to get clear requirements and reservations of customers regarding the B2C networking in which BAC has decided to invest in. These options would clarify wide range of customerà ƒ ¢Ã¢â€š ¬s viewpoints and specific needs pertaining to digital services to BAC management and thus, they would then be in a more strong position to implement them as per the needs of their customer segments. This step would not only enhance the level of customer satisfaction, but it would flourish the chances for BAC to create strong relationship with its customer on long term basis.Customer SegmentsAlthough, all digital services can be accessed freely by any customer in airport vicinity after getting duly subscribed for each of them, however, BAC management could find it more feasible to divide those services as per the different segments of customer or passengers they are aimed to interact with. Such an option would be more congenial as it will clarify to companyà ¢Ã¢â€š ¬s management that what category of customerà ¢Ã¢â€š ¬s are more important for them as compare to the normal ones.Key ResourcesRequirement of considerable amount of human and financial resources would be firmly needed by BAC, in order to implement B2C digital network over the entire or targeted airport vicinity. Moreover, cost would turned out sharply as the more emphasizing factor over the success of this technology, as such kind of digital setups are among cutting edge technologies base. Another significant resource could take the shape of well known brand name, goodwill or trademark of companyà ¢Ã¢â€š ¬s new partner, which would bring the additional synergies into the development and growth of business (Abecassis-Moedas, Ben Mahmoud-Jouini, Dell'Era, Manc...

Cronus The Titan King - 760 Words

Cronus was one of the most feared and respected deities of the Greek culture. Cronus was also the youngest of the first-generation of Titans. His power was controlling time. Cronus believed he held the answer to everything. He was cynical, arrogant, not that wise, and very prideful. However, he also had some helpful strengths. Cronus was intellectual, and powerful. He commanded respect, and had control over time. His arrogance and pride were probably his downfall. Cronus would never back down from a challenge. (http://halexandria.org/dward377.htm) Cronus’s parents were Gaea, the Earth goddess, and Uranus, the Sky God. Cronus had eleven Titan siblings. His sisters were Rhea(Future Queen of the Titans), Tethys(wife/sister of Oceanus, produced rivers and ocean nymphs), Mnemosyne(Titan of memory, mother of the Muses), Crius(no details given), Phoebe(Titan of the Moon, mother of Leto), and Thea(no details given). And his brothers were Oceanus(the unending stream of water encircling the world), Hyperion(Titan of Light), Themis(Titan of Justice and Order), Iapetus(father of Prometheus, Epimetheus, Menoetius, and Atlas by Clymene), and Coeus(Titan of Intelligence). (â€Å"The Titans of the Golden Age†) Uranus and Gaea did not just have the Titans as children. Uranus thought they were ugly and undesirable. The undesirable siblings were the Hecatoncheires(100-handers) and the Cyclops(a monster with one eye, amazing crafters in the forges). He thought they would disruptShow MoreRelatedAncient Greece : An Important Gr eek God1709 Words   |  7 PagesGoddesses came into power after they overthrew the elder gods, the Titans. The twelve Olympians names were: Zeus, Hera, Poseidon, Hades, Hestia, Athena, Artemis, Apollo, Aphrodite, Hephaestus, Ares, and Hermes. These were the main gods that the ancient Greeks would worship and build temples for. 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The Titans and CyclopesRead MoreEssay on The Titans: Rulers before the Olympians 845 Words   |  4 PagesThe Titans: Rulers before the Olympians The Titans were also known as the elder Gods, they ruled before they were overthrown by the Olympians (Hunt). Gaea was the Earth goddess and the mother of all the Titans(Atsma) . She created Ouranos by herself, then the two of them created Cyclopes, Hecatoncheires, and the twelve Titans together (Hunt). The twelve Titans or Titanides, the female Titans were Cronos, Coeus, Crius, Iapetus, Hyperion, Oceanus, Mnemosyne, Themis, Rhea, Theia, Phoibe, TethysRead MoreThe Heroes Of Uranus And Sea Of The Underworld 1546 Words   |  7 Pages(sea).When each of those Titans were born their power is new, for example when Nyx was born so was the night. The most important Titan came from Uranus and Gaia who had Cronus (father of the Olympians) when Gaia had each one of her children Uranus grew more and more jealous that when their children were born he would shove them back into the womb. When Gaia grew uncomfortable with her womb full of children, she planned Cronus’s demise; she m ade an iron sickle and gave it to Cronus who was still in theRead MoreThe Creation of Gods667 Words   |  3 Pagesthey were created, but that is why this essay, or story was created. Zeus was born by the titans Cronus and Rhea. Cronus was evilly known for being a very jealous and greedy person. Cronus feared that one of his children could take his crown and throne, Cronus had eaten every child born Rhea was giving birth to. However, Rhea gave birth to her last boy, Zeus. Rhea managed to trick Cronus with the help of Uranus and Gaea. She put together a fake baby with a rock in a pile of clothes to swallowRead MoreGreek Gods and Goddess875 Words   |  4 Pagesnineteen elder gods and goddesses the Greeks knew as The Titans, who ruled the earth in a primordial era before the Olympian gods overthrew them. The ancient Greeks of the first millennium before the Christian era believed that the ruler of the Titans was Cronus, who was rebelled against and ultimately dethroned by his own son Zeus. When faced with the choice between who to support, most of the Titan gods and goddesses decided to fight with Cronus against Zeus, and when they were defeated, they wereRead MoreThe, The Roman God Of The Heavens And Sky1473 Words   |  6 PagesHe is the father of the titans , and his mother, Gaia, is his wife. Uranus is one of the original gods. He his also the first son Gaia had. Another way people said his name was Ouranos. Uranus has qualities such as light, heat, purity, and omnipresence, the ability to be everywhere at once. Uranus fathered six sons known as the titans. They were given this name do to their large size and strength. The titans names were; Oceanus, Coeus, Crius, Hyperion, Iapetus and Cronus. Along with his six sonsRead MoreThe Relationships Between Parents and Children in Greek and Roman Myths1422 Words   |  6 Pagesmythology is that mothers and sons that have exceptionally strong bonds. This is shown in The Creation of the Titans and the Gods in the beginning when Gaea creates Uranus. This makes him her son, yet they end up married and they have children. In todays culture, incest is frowned upon. However, in Ancient Greek society, it was perfectly acceptable. Later, Gaea asks Cronus to overpower Uranus. Cronus relationship with his mother is very strong. Otherwise, he could not have overthrown his father. This

Walt Whitmans Song of Myself Essay - 716 Words

In one of the sections from the poem, â€Å"Song of Myself† Walt Whitman starts out with a child asking a question, â€Å"What is the grass?† Grass is a symbol of life. God, who created both the heavens and the earth also gave birth to life. When Whitman refers to grass as a â€Å"handkerchief of the Lord† (7), as a gift. When people look at the grass, they do not think of it as a creation but rather just a plant. Whitman refers to the grass as â€Å"a child, the produced babe of vegetation† (11, 12). Here, the grass is a metaphor for the birth of a child. In often cases, the birth of anything is celebrated because it symbolizes a new life, a new beginning. Whitman in a way compares grass as a human society. He mentions that grass is â€Å"a uniform†¦show more content†¦Another example of Whitmans comparison of grass to humans is when he says, â€Å"It may be you transpire from the breasts of young men, / It may be you are from old people, or fr om offspring taken,† (20, 21). Grasses all start out as a seed and will not grow unless its owner takes care of it. This can refer to humans as well since babies cannot take care of themselves and must rely on adults to grow and develop. This cycle of life is repeated for generations to come as seen in lines 23 and 24 where Whitman compares the growth of grass to that of a human child, â€Å"soon out of their mothers laps, / And here you are the mothers laps†. As children once grew up with parents, in the near future, they themselves will become parents as well. In the middle of the poem, Whitman stops celebrating the joy of procreation and focuses more about the philosophy of death. Death is part of every day life and feared by many people. Whitman tells the child to not fear death because he says, â€Å"there really is no death† (38). He considers the grass that grows among the graves in the cemetery to be the â€Å"beautiful uncut hair of graves† (18). Even among death, Whitman considers life beautiful. He tells the child that even after a person â€Å"ceased† (41) to live, they still continue to live after death. What becameShow MoreRelatedEssay on Walt Whitmans Song of Myself3631 Words   |  15 PagesWalt Whitmans Song of Myself This paper deals with Walt Whitmans Song of Myself in relation to Julia Kristevas theories of abjection--my paper does not point to abjection in the text, but rather the significance of the abscence of abjection. This abscence, looming and revolting, arises from Whitmans attemt to refigure a conception of sublimity which delimits the material which can trigger the sublime moment. Whitmans democracy of the sublime is inclusive of those figures on the AmericanRead MoreIdentity In Walt Whitmans A Song Of Myself869 Words   |  4 PagesIdentity: A Common Theme Walt Whitman (1819-1892) wrote a poem titles â€Å"A Song of Myself.† He wrote this piece in order to celebrate his identity, what makes him unique. Chinua Achebe (1930-2013) writes of a little boy struggling with identity in a quickly changing world. Jamaica Kincaid (1949-), writes of a young girl who is learning her identity as a mother, wife and daughter. By examining each piece of literature, one can trace the common theme of identity by comparing and contrasting theRead MoreTranscendentalism In Walt Whitmans A Song Of Myself1073 Words   |  5 PagesThe school of thought that is transcendentalism is best explained as the idea that everything is connected. America, as a country, represents the philosophy of Transcendentalism. This is best exemplified in the writing of Walt Whitman. In his poem, â€Å"A Song of Myself†, Whitman truly heralded a new brand of American exceptionalism. He championed the individual and created a work that exemplified the common man as the pillar of the American dream. Yet he also explained that Americans are what make upRead More References to Homosexuality in Walt Whitmans Song of Myself1210 Words   |  5 PagesHomosexuality in Walt Whitmans Song of Myself WHITMAN WAS MORE MAN THAN YOULL EVER BE, said a student of Louisiana State University. When asked questions of your sexual preference or thoughts on the issue of sex, I would venture to say it makes most people uncomfortable. This is an age-old topic that people know about, yet do not want to talk about. He was particularly reticent about his issues regarding sex and his particular sexual preference. In fact, of Whitmans struggles theRead More An Analysis of Walt Whitmans Song of Myself Essay778 Words   |  4 PagesAn Analysis of Walt Whitmans Song of Myself `Whitman was always asking questions. He believed that lifes goal or cause was a mystery. He was surrounded by people who were drawing distinct lines between right and wrong, rejecting the things in the universe that were not a direct ticket to holiness. Whitman, unlike his contemporaries, embraced the beauty of everything. His mystical perception of the world ushered in the idea that God was to be found in every thing, and that He couldRead MoreEssay about Walt Whitmans Song of Myself1779 Words   |  8 PagesWalt Whitmans Song of Myself Walt Whitmans Song of Myself is, on the most basic descriptive level, a really long poem. Whitman is clearly a poet with a lot to say, or at least with a lot of different ways to say it. He meanders from the micro to the macro, from atoms to the whole earth. There are obviously myriad ways to explain what the poem is about, and myriad keys to its true meaning. In what became Section 6 of the final edition (lines 90-121 of the 1855 edition ) Whitman himselfRead More Defining the Soul in Walt Whitmans Song of Myself Essay721 Words   |  3 Pages Every sentence in Walt Whitmans Song of Myself tends to either repeat or contradict. He even says of himself, I contradict myself (Lauter, p. 2793). This can make Whitmans poetry a little confusing to some. In his many stanzas, definition of the soul is ambiguous and somewhat contradictory. Whitman says, Clear and sweet is my soul....and clear and sweet is all that is not my soul (Lauter, p. 2745). What I believe Whitman is saying here is that his soul and everything elseRead MoreEssay Choosing Sides in Walt Whitmans Song of Myself1095 Words   |  5 Pagesâ€Å"Song of Myself† is an attempt by Walt Whitman to become the â€Å"American poet† as described by Ralph Waldo Emerson; he attempts to be â€Å"[T]he sayer, the namer, and [representative] of beauty† (Emerson 1182). Whitman wants to speak to and for America. Whitman does not explicitly choose sides on the slavery debate that was raging at the time of his writing, but he does express the equality of all people, regardless of gender and race in â€Å"Song of Myself†. While Whitman’s writing can be read as neutralRead MoreIndividuality And Free Verse in Walt Whitmans Song of Myself1524 Words   |  7 Pages2.5 kids, 2 cars, a dog and a satisfying job), the spirit of innovati on, individuality and progress remains unchanged. The father of free verse, and perhaps the American perspective of poetry, Walt Whitman embodies these values in his life and work. First published in 1855 in Leaves of Grass, Song of Myself is a vision of a symbolic I enraptured by the senses, vicariously embracing all people and places from the Atlantic to the Pacific oceans. Sections 1 and 2, like the entirety of the piece,Read More An Annotation of Section 24 of Walt Whitmans Song of Myself1354 Words   |  6 PagesSection 24 of Walt Whitmans Song of Myself Walt Whitmans Song of Myself is a vision of the American spirit, a vision of Whitman himself. It is his cry for democracy, giving each of us a voice through his poetry. Each of us has a voice and desires, and this is Whitmans representation of our voices, the voice of America. America, the great melting pot, was founded for freedom and democracy, and this poem is his way of re-instilling these lost American ideals. In this passage from Song of Myself

Impact of Pulp Magazines on American Culture Essay

Impact of Pulp Magazines on American Culture â€Å"The story is worth more than the paper it is printed on.† Frank Munsey’s words symbolized the history of the pulp magazine. Frank Munsey started the pulp magazine craze with his first magazine, the Argosy, in 1896. The Argosy was a revamping of his children’s magazine, the Golden Argosy, shifting its focus from children to adults. The Argosy offered large amounts of fiction for a low price, because these stories would be printed on cheap pulpwood scraps, thus gaining the name ‘pulp magazine’. The pulp magazine has been a part of American history for well over a hundred years. During the late 1890’s, there was a period of high immigration. These immigrants and other working poor had no†¦show more content†¦Pulp magazines mainly dealt with racy love stories, detective cases, western and war fiction, thus they had gained a notorious reputation for quality. While this was true, it was not always the case. Pulp magazines have had con tributions from many different, famous authors. These authors include: H.P. Lovecraft (author of the Cthulhu Mythos), Isaac Asimov, Arthur C. Clarke (author of 2001: A Space Odyssey), Ray Bradbury (author of the Martian Chronicles), Edgar Rice Burroughs (author of the Tarzan, Mars, and Pellicidar series), Lester Dent (author of the Doc Savage series), Walter Gibson (author of the Shadow series), Erle Stanley Gardner (author of the Perry Mason novels), Robert Heinlein (author of Starship Troopers, Stranger in a Strange Land), Robert E. Howard (author of the Conan stories), Robert Heinlein, Daishell Hammett (author of the Maltese Falcon and the Thin Man), Steven Crane, and Tennessee Williams. Such famous authors of great American literature took their roots from these supposedly tawdry magazines. Pulp magazines faded for a combination of reasons. The first reason was the development of comic books as an alternative to the pulp magazines, drawing away the juvenile group from the pulps. World War II paper shortages almost halted the printing of the pulps. The development of the paperback book offered the population high quality writing at a cheap price. Because of these reasons, eventually all the pulpsShow MoreRelated Criteria for Evaluating Media Violence Essay1530 Words   |  7 Pagescombination with the rest of the monetary intake of the other 130 major studio releases, represent a huge portion of the Gross National Product. By the end of 1997, the same ten films amassed $1,444,000,000 in foreign markets, making the products of the American film industry account for a large portion of money made through exportation. Those of these films released on video by the end of 1997 accounted for another $640,200,000 in the video market. (Kilday) So the current U.S. economy is part ially dependentRead MoreEmbracing Defeat, By John Dower1418 Words   |  6 Pages Embracing Defeat John Dower’s Embracing Defeat is a thorough analysis of Japan’s aftermath of defeat, encompassing in great detail the culture and history of Japan following the end of World War II. Dower shows great interest in the impact of a critical unconditional surrender and the transformation of culture, economy, and policy that came with America’s military occupation and its unabashed democratizing agenda. Through the book, Dower â€Å"tried to capture a sense of what it meant to start overRead More The Changing Role of Science Fiction Essay2351 Words   |  10 Pageslot of different people, thus a variety of definitions have arisen to allow for this. Perhaps the most simple of these can be found in the The Merriam-Webster Dictionary, which states that science fiction is fiction dealing principally with the impact of actual or imagined science on society or individuals (652). Most of academia, however, prefers an extended version from Darko Suvin, who says SF is: A literary genre whose necessary and sufficient conditions are the presence and interactionRead MoreThe Popularity of Science Fiction1787 Words   |  8 PagesIt ranges from the present Earth the human mind knows to the limits of any possible universes the human imagination can project, whether its the past, present, future, or alternative time-space continuums (Franklin 1). Science fiction embraces the American ideology of technological utopianism such as beliefs that technological advances will improve human and social cultural relations fiercely. It also included the imagination of alternative worlds where current developments like social, political,Read MoreThe First Assigned Readings For Mba 6603414 Words   |  14 Pagesrules of both culture and communication and examples of issues and incidents that arise in the international marketplace when â€Å"blunders† occur. One of the main causes of â€Å"blunders† within the international marketplace arises because of the differences in culture between countries and companies attempted to expand into their respective marketplace. The text cites many of the cultural differences that reflect upon business in this chapter. It was interesting to learn that in Arab cultures deadlinesRead MoreAmerican Pop Art Essay2717 Words   |  11 PagesExamine the mass medias influence on both the formal and iconographic features of American Pop Art. Centre your discussion on one or two examples each of the work of the following artists: Andy Warhol, Claes Oldenburg, Roy Lichtenstein, Tom Wesselmann, James Rosenquist. Pop Art is one of the major art movements of the Twentieth Century. Characterized by themes and techniques drawn from mass culture such as advertising and comic books, pop art is widely interpreted as a reaction to the ideasRead MoreThe Greatest Out Door Show On Earth1912 Words   |  8 PagesWeadick, an American trick roper who participated in the Dominion Exhibition as part of the Miller Brothers 101 Ranch Real Wild West Show, returned to Calgary in 1912 in the hopes of establishing an event that more accurately represented the wild west than the shows he was a part of. Guy Weadick, a Yankee cowboy, who’s dream was a frontier contest on a colossal scale (Seskus, 2016). Born in 1855 in Rochester N.Y, Guy Weadick was raised on tales of cowboys popularized by pulp fiction magazines. â€Å"You hadRead MoreIntergenerational Diversity: Challenges and Conflicts in the Workplace1911 Words   |  8 PagesIntergenerational Diversity Challenges and Conflicts in the Workplace Todays American workforce is unique. Never before has there been a workplace so diverse in so many ways: Race, gender, ethnicity, and generational differences exist to a greater extent than ever before. As the U.S. Department of Labor Bureau of Labor Statistics (2004) study reported, large corporations could lose between two and four percent bottom line productivity due to generational differences and miscommunication inRead MoreThe American Cowboy2811 Words   |  12 PagesThe American Cowboy The cowboys of the frontier have long captured the imagination of the American public. 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The Boom from the Sky and The Joys of Nature as a Young Boy

The smell of the pine permeates the air I breath as I climb up the mountain trail with the excitement of a child exploring new and exciting adventures. The buzzing of mosquitoes intensifies near a slow moving stream I reach down with my hand to pick some of the western yarrow growing near the trail. I have been told that it acts as a natural repellant. I chew on some of plant, flooding my mouth with an almost pleasant, bitter-sweet flavor. This hike up Red Ridge Mountain feels completely removed from the world in which I grew up. We are miles from the nearest car or road, over 8500 feet above sea level, and I am hearing sounds of nature that I have never yet experienced. Before reaching the summit we set up camp. We brought almost nothing, not even tents, and we are learning to build a lean-to shelter for the night. The adults check the construction of our lean-tos before we start a campfire. Our camp was set up and we sat down for smores and dinner. Finally I climb into my sleeping bag, feeling proud for the shelter I created with limbs, leaves, and only a small amount of twine from my pack. I was ready for a great night’s rest, listening the orchestra of natural sounds, and the more still I got the more new instruments I was able to hear in this great symphony; the chittering of bugs and the rustling of nocturnal animals was the music that finally lures me into slumber. I am suddenly jarred out of sleep as the earth starts to shake. The leaves rustle, and my entireShow MoreRelatedParable of the Burning House5191 Words   |  21 PagesThe fish a) Shatapatha Brahmana (900 BCE) -Manu was brought water for ablutions (washing hands), when a fish came into his hands and said â€Å"care for me, and I will save you† - fish said : â€Å" A flood will carry all these creatures and I will save you from it† -destruction of fish is great, as fish eat fish -told Manu to keep him in a pot, and then a trench, and once he outgrew it, to put him in the ocean and for then he said , â€Å"I will be beyond destruction†. - fish grew into a â€Å"jhasa†, which growsRead MoreEssay on Fall of Asclepius95354 Words   |  382 Pages The apocalypse happened so fast. In less than a month, monsters infested every part of this world. People panicked, people died. They clawed at each other just to get out of all the infested areas around the world. There was problem about fleeing from infested areas. Everywhere was infested. 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Visit www.mymanagementlab.com to learn more. DEVELOPING MANAGEMENT SKILLS EIGHTH EDITION David A. Whetten BRIGHAM YOUNG UNIVERSITY Kim S. Cameron UNIVERSITY OF MICHIGAN Prentice Hall Boston Columbus Indianapolis New York San Francisco Upper Saddle River Amsterdam Cape Town Dubai London Madrid Milan Munich Paris Montreal Toronto Delhi Mexico City Sao Paulo SydneyRead MoreStephen P. Robbins Timothy A. Judge (2011) Organizational Behaviour 15th Edition New Jersey: Prentice Hall393164 Words   |  1573 Pages10.5/12 ITC New Baskerville Std Credits and acknowledgments borrowed from other sources and reproduced, with permission, in this textbook appear on the appropriate page within text. Copyright  © 2013, 2011, 2009, 2007, 2005 by Pearson Education, Inc., publishing as Prentice Hall. All rights reserved. Manufactured in the United States of America. 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College Physics 9e Free Essays

1 Introduction ANSWERS TO MULTIPLE CHOICE QUESTIONS 1. Using a calculator to multiply the length by the width gives a raw answer of 6783 m 2 , but this answer must be rounded to contain the same number of signi? cant ? gures as the least accurate factor in the product. The least accurate factor is the length, which contains either 2 or 3 signi? cant ? gures, depending on whether the trailing zero is signi? cant or is being used only to locate the decimal point. We will write a custom essay sample on College Physics 9e or any similar topic only for you Order Now Assuming the length contains 3 signi? cant ? gures, answer (c) correctly expresses the area as 6. 78 ? 10 3 m 2 . However, if the length contains only 2 signi? cant ? gures, answer (d) gives the correct result as 6. 8 ? 10 3 m 2 . Both answers (d) and (e) could be physically meaningful. Answers (a), (b), and (c) must be meaningless since quantities can be added or subtracted only if they have the same dimensions. According to Newton’s second law, Force = mass ? acceleration . Thus, the units of Force must be the product of the units of mass (kg) and the units of acceleration ( m s 2 ). This yields kg ? m s 2, which is answer (a). The calculator gives an answer of 57. 573 for the sum of the 4 given numbers. However, this sum must be rounded to 58 as given in answer (d) so the number of decimal places in the result is the same (zero) as the number of decimal places in the integer 15 (the term in the sum containing the smallest number of decimal places). The required conversion is given by: ? 1 000 mm ? ? 1. 00 cubitus ? h = ( 2. 00 m ) ? ? = 4. 49 cubiti ? 1. 00 m ? ? 445 mm ? This result corresponds to answer (c). 6. The given area (1 420 ft 2 ) contains 3 signi? cant ? gures, assuming that the trailing zero is used only to locate the decimal point. The conversion of this value to square meters is given by: 1. 00 m ? 2 2 2 A = (1. 2 ? 10 3 ft 2 ) ? ? ? = 1. 32 ? 10 m = 132 m ? 3. 281 ft ? Note that the result contains 3 signi? cant ? gures, the same as the number of signi? cant ? gures in the least accurate factor used in the calculation. This result matches answer (b). 7. You cannot add, subtract, or equate a number apples and a number of days. Thus, the answer is yes for (a), (c), an d (e). However, you can multiply or divide a number of apples and a number of days. For example, you might divide the number of apples by a number of days to ? nd the number of apples you could eat per day. In summary, the answers are (a) yes, (b) no, (c) yes, (d) no, and (e) es. 2 2. 3. 4. 5. 1 http://helpyoustudy. info 2 Chapter 1 8. The given Cartesian coordinates are x = ? 5. 00, and y = 12. 00 , with the least accurate containing 3 signi? cant ? gures. Note that the speci? ed point (with x 0 and y 0 ) is in the second quadrant. The conversion to polar coordinates is then given by: r = x 2 + y 2 = ( ? 5. 00 ) + (12. 00 ) = 13. 0 2 2 tan ? = y 12. 00 = = ? 2. 40 x ? 5. 00 and ? = tan ? 1 ( ? 2. 40 ) = ? 67. 3 ° + 180 ° = 113 ° Note that 180 ° was added in the last step to yield a second quadrant angle. The correct answer is therefore (b) (13. 0, 113 °). 9. Doing dimensional analysis on the ? st 4 given choices yields: (a) [ v] ?t ? ? ? 2 = LT L = 3 T2 T (b) [ v] ?x2 ? ? ? = LT = L? 1T ? 1 L2 (c) ? v 2 ? ( L T )2 L2 T 2 L2 ? ?= = = 3 T T T [t ] (d) ? v 2 ? ( L T )2 L2 T 2 L ? ?= = = 2 L L T [ x] Since acceleration has units of length divided by time squared, it is seen that the relation given in answer (d) is consistent with an expression yielding a value for acceleration. 10. The number of gallons of gasoline she can purchase is # gallons = total expenditure 33 Euros ? cost per gallon ? Euros ? ? 1 L ? ? ? 1. 5 L ? ? 1 quart ? ? ? ? ? 5 gal ? 4 quarts ? ? 1 gal ? ? ? ? ? so the correct answer is (b). 1. The situation described is shown in the drawing at the right. h From this, observe that tan 26 ° = , or 45 m h = ( 45 m ) tan 26 ° = 22 m 26 h Thus, the correct answer is (a). 12. 45 m Note that we may write 1. 365 248 0 ? 10 7 as 136. 524 80 ? 10 5. Thus, the raw answer, including the uncertainty, is x = (136. 524 80  ± 2) ? 10 5. Since the ? nal answer should contain all the digits we are sure of and one estimated digit, this result shou ld be rounded and displayed as 137 ? 10 5 = 1. 37 ? 10 7 (we are sure of the 1 and the 3, but have uncertainty about the 7). We see that this answer has three signi? cant ? ures and choice (d) is correct. ANSWERS TO EVEN NUMBERED CONCEPTUAL QUESTIONS 2. Atomic clocks are based on the electromagnetic waves that atoms emit. Also, pulsars are highly regular astronomical clocks. http://helpyoustudy. info Introduction 3 4. (a) (b) (c) ~ 0. 5 lb ? 0. 25 kg or ~10 ? 1 kg ~ 4 lb ? 2 kg or ~10 0 kg ~ 4000 lb ? 2000 kg or ~10 3 kg 6. Let us assume the atoms are solid spheres of diameter 10? 10 m. Then, the volume of each atom is of the order of 10? 30 m3. (More precisely, volume = 4? r 3 3 = ? d 3 6 . ) Therefore, since 1 cm 3 = 10 ? 6 m 3, the number of atoms in the 1 cm3 solid is on the order of 10 ? 10 ? 30 = 10 24 atoms. A more precise calculation would require knowledge of the density of the solid and the mass of each atom. However, our estimate agrees with the more precise calculation t o within a factor of 10. Realistically, the only lengths you might be able to verify are the length of a football ? eld and the length of a house? y. The only time intervals subject to veri? cation would be the length of a day and the time between normal heartbeats. In the metric system, units differ by powers of ten, so it’s very easy and accurate to convert from one unit to another. 8. 10. ANSWERS TO EVEN NUMBERED PROBLEMS . 4. 6. 8. 10. 12. 14. 16. 18. (a) L T2 (b) L All three equations are dimensionally incorrect. (a) (a) (a) (a) (a) kg ? m s 22. 6 3. 00 ? 108 m s 346 m 2  ± 13 m 2 797 (b) (b) (b) (b) (b) Ft = p 22. 7 2 . 997 9 ? 108 m s 66. 0 m  ± 1. 3 m 1. 1 (c) 17. 66 (c) (c) 22. 6 is more reliable 2. 997 925 ? 108 m s 3. 09 cm s (a) (b) (c) (d) 5. 60 ? 10 2 km = 5. 60 ? 10 5 m = 5. 60 ? 10 7 cm 0. 491 2 km = 491. 2 m = 4. 912 ? 10 4 cm 6. 192 km = 6. 192 ? 10 3 m = 6. 192 ? 10 5 cm 2. 499 km = 2. 499 ? 10 3 m = 2. 499 ? 10 5 cm 20. 22. 24. 26. 10. 6 km L 9. 2 nm s 2 . 9 ? 10 2 m 3 = 2 . 9 ? 108 cm 3 2 . 57 ? 10 6 m 3 ttp://helpyoustudy. info 4 Chapter 1 28. 30. 32. 34. ? 108 steps ~108 people with colds on any given day (a) (a) 4. 2 ? 10 ? 18 m 3 ? 10 29 prokaryotes (b) (b) ~10 ? 1 m 3 ~1014 kg (c) ~1016 cells (c) The very large mass of prokaryotes implies they are important to the biosphere. They are responsible for ? xing carbon, producing oxygen, and breaking up pollutants, among many other biological roles. Humans depend on them! 36. 38. 40. 42. 44. 46. 48. 2. 2 m 8. 1 cm ? s = r12 + r22 ? 2r1r2 cos (? 1 ? ?2 ) 2. 33 m (a) 1. 50 m (b) 2. 60 m 8. 60 m (a) and (b) (c) 50. 52. 54. y= (a) y x = tan 12. 0 °, y ( x ? . 00 km ) = tan 14. 0 ° d ? tan ? ? tan ? tan ? ? tan ? 1. 609 km h (b) 88 km h (d) 1. 44 ? 10 3 m (c) 16 km h Assumes population of 300 million, average of 1 can week per person, and 0. 5 oz per can. (a) ? 1010 cans yr 7. 14 ? 10 ? 2 gal s A2 A1 = 4 ? 10 2 yr (b) (b) (b) (b) ? 10 5 tons yr 2. 70 ? 10 ? 4 m 3 s V2 V1 = 8 ? 10 4 times (c) 1. 03 h 56. 58. 60. 62. (a) (a) (a) ? 10 4 balls yr. Assumes 1 lost ball per hitter, 10 hitters per inning, 9 innings per game, and 81 games per year. http://helpyoustudy. info Introduction 5 PROBLEM SOLUTIONS 1. 1 Substituting dimensions into the given equation T = 2? ionless constant, we have g , and recognizing that 2? is a dimen- [T ] = [ ] [ g] or T= L = L T2 T2 = T Thus, the dimensions are consistent . 1. 2 (a) From x = Bt2, we ? nd that B = [ B] = [ x] L = 2 [t 2 ] T x . Thus, B has units of t2 (b) If x = A sin ( 2? ft ), then [ A] = [ x ] [sin ( 2? ft )] But the sine of an angle is a dimensionless ratio. Therefore, [ A] = [ x ] = L 1. 3 (a) The units of volume, area, and height are: [V ] = L3, [ A] = L2 , and [h] = L We then observe that L3 = L2 L or [V ] = [ A][h] Thus, the equation V = Ah is dimensionally correct . (b) Vcylinder = ? R 2 h = (? R 2 ) h = Ah , where A = ? R 2 Vrectangular box = wh = ( w ) h = Ah, where A = w = length ? width 1. 4 (a) L ML2 2 2 m v 2 = 1 m v0 + mgh, [ m v 2 ] = [ m v0 ] = M ? ? = 2 ? ? 2 T ? T? 1 2 L ? M L while ? mgh ? = M ? 2 ? L = . Thus, the equation is dimensionally incorrect . ? ? ? T ? T ? In the equation 1 2 2 (b) L L but [at 2 ] = [a][t 2 ] = ? 2 ? ( T 2 ) = L. Hence, this equation ? ? T ? T ? is dimensionally incorrect . In v = v0 + at 2, [ v] = [ v0 ] = L In the equation ma = v 2, we see that [ ma] = [ m][a] = M ? 2 ? ?T Therefore, this equation is also dimensionally incorrect . 2 ? = ML , while [ v 2 ] = ? L ? = L . ? ? ? 2 T2 ? T ? T? 2 (c) . 5 From the universal gravitation law, the constant G is G = Fr 2 Mm. Its units are then [G ] = [ F ] ? r 2 ? ( kg ? m s2 ) ( m 2 ) m3 ? ?= = kg ? kg kg ? s 2 [ M ][ m ] http://helpyoustudy. info 6 Chapter 1 1. 6 (a) Solving KE = p2 for the momentum, p, gives p = 2 m ( KE ) where the numeral 2 is a 2m dimensionless constant. Dimensional analysis gives the units of mome ntum as: [ p] = [ m ][ KE ] = M ( M ? L2 T 2 ) = M 2 ? L2 T 2 = M ( L T ) Therefore, in the SI system, the units of momentum are kg ? ( m s ) . (b) Note that the units of force are kg ? m s 2 or [ F ] = M ? L T 2 . Then, observe that [ F ][ t ] = ( M ? L T 2 ) ? T = M ( L T ) = [ p ] From this, it follows that force multiplied by time is proportional to momentum: Ft = p . (See the impulse–momentum theorem in Chapter 6, F ? ?t = ? p , which says that a constant force F multiplied by a duration of time ? t equals the change in momentum, ? p. ) 1. 7 1. 8 Area = ( length ) ? ( width ) = ( 9. 72 m )( 5. 3 m ) = 52 m 2 (a) Computing ( 8) 3 without rounding the intermediate result yields ( 8) (b) 3 = 22. 6 to three signi? cant ? gures. Rounding the intermediate result to three signi? cant ? gures yields 8 = 2. 8284 2. 83 Then, we obtain ( 8) 3 = ( 2. 83) = 22. 7 to three signi? ant ? gures. 3 (c) 1. 9 (a) (b) (c) (d) The answer 22. 6 is more reliable because rounding in part (b) was carried out too soon. 78. 9  ± 0. 2 has 3 significant figures with the uncertainty in the tenths position. 3. 788 ? 10 9 has 4 significant figures 2. 46 ? 10 ? 6 has 3 significant figures 0. 003 2 = 3. 2 ? 10 ? 3 has 2 significant figures . The two z eros were originally included only to position the decimal. 1. 10 c = 2 . 997 924 58 ? 108 m s (a) (b) (c) Rounded to 3 signi? cant ? gures: c = 3. 00 ? 108 m s Rounded to 5 signi? cant ? gures: c = 2 . 997 9 ? 108 m s Rounded to 7 signi? cant ? gures: c = 2 . 997 925 ? 08 m s 1. 11 Observe that the length = 5. 62 cm, the width w = 6. 35 cm, and the height h = 2. 78 cm all contain 3 signi? cant ? gures. Thus, any product of these quantities should contain 3 signi? cant ? gures. (a) (b) w = ( 5. 62 cm )( 6. 35 cm ) = 35. 7 cm 2 V = ( w ) h = ( 35. 7 cm 2 ) ( 2. 78 cm ) = 99. 2 cm 3 continued on next page http://helpyoustudy. info Introduction 7 (c) wh = ( 6. 35 cm )( 2. 78 cm ) = 17. 7 cm 2 V = ( wh ) = (17. 7 cm 2 ) ( 5. 62 cm ) = 99. 5 cm 3 (d) In the rounding process, small amounts are either added to or subtracted from an answer to satisfy the rules of signi? cant ? gures. For a given rounding, different small adjustments are made, introducing a certain amount of randomness in the last signi? cant digit of the ? nal answer. 2 2 2 A = ? r 2 = ? (10. 5 m  ± 0. 2 m ) = ? ?(10. 5 m )  ± 2 (10. 5 m )( 0. 2 m ) + ( 0. 2 m ) ? ? ? 1. 12 (a) Recognize that the last term in the brackets is insigni? cant in comparison to the other two. Thus, we have A = ? ?110 m 2  ± 4. 2 m 2 ? = 346 m 2  ± 13 m 2 ? ? (b) 1. 13 C = 2? r = 2? (10. 5 m  ± 0. 2 m ) = 66. 0 m  ± 1. 3 m The least accurate dimension of the box has two signi? cant ? gures. Thus, the volume (product of the three dimensions) will contain only two signi? cant ? ures. V = ? w ? h = ( 29 cm )(17. 8 cm )(11. 4 cm ) = 5. 9 ? 10 3 cm 3 1. 14 (a) The sum is rounded to 797 because 756 in the terms to be added has no positions beyond the decimal. 0. 003 2 ? 356. 3 = ( 3. 2 ? 10 ? 3 ) ? 356. 3 = 1. 14016 must be rounded to 1. 1 because 3. 2 ? 10 ? 3 has only two signi? cant ? gures. 5. 620 ? ? must be rounded to 17. 66 because 5. 620 has only four signi? cant ? gures. (b) (c) 1. 15 5 280 ft ? ? 1 fathom ? 8 d = ( 250 000 mi ) ? ? ? = 2 ? 10 fathoms ? 1. 000 mi ? ? 6 ft ? The answer is limited to one signi? cant ? gure because of the accuracy to which the conversion from fathoms to feet is given. . 16 v= t = 186 furlongs 1 fortnight ? 1 fortnight ? ? 14 days ? ? ? 1 day ? ? 220 yds ? ? 8. 64 ? 10 4 s ? ? 1 furlong ? ? 3 ft ? ? 1 yd ? ? 100 cm ? ? ? 3. 281 ft ? ? ? giving v = 3. 09 cm s ? ? 3. 786 L ? ? 1 gal ? ? 10 3 cm 3 ? ? 1 m 3 ? = 0. 204 m 3 ? ? 1 L ? ? 10 6 cm 3 ? ? ? 1. 17 ? 9 gal 6. 00 firkins = 6. 00 firkins ? ? 1 firkin ? (a) 1. 18 1. 609 km ? 2 5 7 = ( 348 mi ) ? 6 ? ? = 5. 60 ? 10 km = 5. 60 ? 10 m = 5. 60 ? 10 cm ? 1. 000 mi ? ? 1. 609 km ? 4 h = (1 612 ft ) ? 2 ? = 0. 491 2 km = 491. 2 m = 4. 912 ? 10 cm 5 280 ft ? ? ? 1. 609 km ? 3 5 h = ( 20 320 ft ) ? = 6. 192 km = 6. 192 ? 10 m = 6. 192 ? 10 cm 5 280 ft ? ? (b) (c) continued on next page http://helpyo ustudy. info 8 Chapter 1 (d) ? 1. 609 km ? 3 5 d = (8 200 ft ) ? ? = 2 . 499 km = 2 . 499 ? 10 m = 2 . 499 ? 10 cm ? 5 280 ft ? In (a), the answer is limited to three signi? cant ? gures because of the accuracy of the original data value, 348 miles. In (b), (c), and (d), the answers are limited to four signi? cant ? gures because of the accuracy to which the kilometers-to-feet conversion factor is given. 1. 19 v = 38. 0 m ? 1 km ? ? 1 mi ? ? 3 600 s ? ? = 85. 0 mi h ? s ? 10 3 m ? ? 1. 609 km ? 1 h ? Yes, the driver is exceeding the speed limit by 10. 0 mi h . mi ? 1 km ? ? 1 gal ? ? = 10. 6 km L ? gal ? 0. 621 mi ? ? 3. 786 L ? ? ? 1. 20 efficiency = 25. 0 r= 1. 21 (a) (b) (c) diameter 5. 36 in ? 2. 54 cm ? = ? ? = 6. 81 cm 2 2 ? 1 in ? 2 A = 4? r 2 = 4? ( 6. 81 cm ) = 5. 83 ? 10 2 cm 2 V= 4 3 4 3 ? r = ? ( 6. 81 cm ) = 1. 32 ? 10 3 cm 3 3 3 ? ? 1 h ? ? 2. 54 cm ? ? 10 9 nm ? ? 3 600 s ? ? 1. 00 in ? ? 10 2 cm ? = 9. 2 nm s ? 1. 22 ? 1 in ? ? 1 day rate = ? ? 32 day ? ? 24 h ? This means that the proteins are assembled at a rate of many layers of atoms each second! 1. 3 ? m ? ? 3 600 s ? ? 1 km ? ? 1 mi ? 8 c = ? 3. 00 ? 10 8 ? = 6. 71 ? 10 mi h s ? ? 1 h ? ? 10 3 m ? ? 1. 609 km ? ? ? 2 . 832 ? 10 ? 2 m3 ? Volume of house = ( 50. 0 ft )( 26 ft )(8. 0 ft ) ? ? 1 ft 3 ? ? ? 100 cm ? = 2 . 9 ? 10 2 m3 = ( 2 . 9 ? 10 2 m3 ) ? = 2 . 9 ? 10 8 cm3 ? 1m ? ? 1. 25 1. 26 2 2 ? 1 m ? 43 560 ft ? ? 1 m ? ? ? = 3. 08 ? 10 4 m3 Volume = 25. 0 acre ft ? ? ? ? ? 3. 281 ft ? 1 acre ? ? 3. 281 ft ? ? ? ? ? 1 Volume of pyramid = ( area of base )( height ) 3 3 1. 24 ( ) = 1 ? (13. 0 acres )( 43 560 ft 2 acre ) ? ( 481 ft ) = 9. 08 ? 10 7 f ? 3? ? 2 . 832 ? 10 ? 2 m3 ? 3 = ( 9. 08 ? 10 7 ft 3 ) ? 5 ? = 2 . 57 ? 10 m 1 ft3 ? ? 1. 27 Volume of cube = L 3 = 1 quart (Where L = length of one side of the cube. ) ? 1 gallon ? ? 3. 786 liter ? ? 1000 cm3 ? i = 947 cm3 Thus, L 3 = 1 quart ? ? 4 quarts ? ? 1 gallon ? ? 1 liter ? ? ? ? ( ) and L = 3 947 cm3 = 9. 82 cm http ://helpyoustudy. info Introduction 9 1. 28 We estimate that the length of a step for an average person is about 18 inches, or roughly 0. 5 m. Then, an estimate for the number of steps required to travel a distance equal to the circumference of the Earth would be N= or 3 2? ( 6. 38 ? 10 6 m ) Circumference 2? RE = ? ? 8 ? 10 7 steps 0. 5 m step Step Length Step Length N ? 108 steps 1. 29. We assume an average respiration rate of about 10 breaths/minute and a typical life span of 70 years. Then, an estimate of the number of breaths an average person would take in a lifetime is ? ? breaths ? 10 7 ? min n = ? 10 ( 70 yr ) ? 3. 156 ? yr s ? ? 160 s ? = 4 ? 108 breaths ? ? ? min ? 1 ? ? ? or n ? 108 breaths 1. 30 We assume that the average person catches a cold twice a year and is sick an average of 7 days (or 1 week) each time. Thus, on average, each person is sick for 2 weeks out of each year (52 weeks). The probability that a particular person will be sick at any given time equals the percentage of time that person is sick, or probability of sickness = 2 weeks 1 = 52 weeks 26 The population of the Earth is approximately 7 billion. The number of people expected to have a cold on any given day is then 1 Number sick = ( population )( probability of sickness ) = ( 7 ? 10 9 ) ? ? = 3 ? 108 or ? 108 ( ? ? ? 26 ? 1. 31 (a) Assume that a typical intestinal tract has a length of about 7 m and average diameter of 4 cm. The estimated total intestinal volume is then ? ?d 2 ? ? ( 0. 04 m ) Vtotal = A = ? ( 7 m ) = 0. 009 m 3 ? 4 ? 4 ? 2 The approximate volume occupied by a single bacterium is Vbacteria ? ( typical length scale ) = (10 ? 6 m ) = 10 ? 18 m 3 3 3 If it is assumed that bacteria occupy one hundredth of the total intestinal volume, the estimate of the number of microorganisms in the human intestinal tract is n= (b) 3 Vtotal 100 ( 0. 009 m ) 100 = = 9 ? 1013 or n ? 1014 10 ? 18 m 3 Vba cteria The large value of the number of bacteria estimated to exist in the intestinal tract means that they are probably not dangerous. Intestinal bacteria help digest food and provide important nutrients. Humans and bacteria enjoy a mutually bene? ial symbiotic relationship. Vcell = 3 4 3 4 ? r = ? (1. 0 ? 10 ? 6 m ) = 4. 2 ? 10 ? 18 m 3 3 3 1. 32 (a) (b) Consider your body to be a cylinder having a radius of about 6 inches (or 0. 15 m) and a height of about 1. 5 meters. Then, its volume is Vbody = Ah = (? r 2 ) h = ? ( 0. 15 m ) (1. 5 m ) = 0. 11 m 3 or ? 10 ? 1 m 3 2 continued on next page http://helpyoustudy. info 10 Chapter 1 (c) The estimate of the number of cells in the body is then n= Vbody Vcell = 0. 11 m 3 = 2. 6 ? 1016 or ? 1016 ? 18 3 4. 2 ? 10 m 1. 33 A reasonable guess for the diameter of a tire might be 3 ft, with a circumference (C = 2? r = ? D = distance travels per revolution) of about 9 ft. Thus, the total number of revolutions the tire might make is n= total distance traveled ( 50 000 mi )( 5 280 ft mi ) = 3 ? 10 7 rev, or ~ 10 7 rev = distance per revolution 9 ft rev 1. 34 Answers to this problem will vary, dependent on the assumptions one makes. This solution assumes that bacteria and other prokaryotes occupy approximately one ten-millionth (10? 7) of the Earth’s volume, and that the density of a prokaryote, like the density of the human body, is approximately equal to that of water (103 kg/m3). (a) estimated number = n = Vtotal Vsingle prokaryote 10 )V ? ?7 Earth Vsingle prokaryote (10 )(10 m ) ? ? (length scale) (10 m ) ?7 3 Earth ? 7 6 3 ? 6 3 (10 ) R 3 ? 10 29 (b) (c) 3 kg ? ? ? ? mtotal = ( density )( total volume) ? ?water ? nVsingle ? = ? 10 3 3 ? (10 29 )(10 ? 6 m ) ? 1014 kg ? ? prokaryote ? ? m The very large mass of prokaryotes implies they are important to the biosphere. They are responsible for ? xing carbon, producing oxygen, and breaking up pollutants, among many other biological roles. Humans depend on them! x = r cos? = 2 . 5 m cos 35 ° = 2. 0 m 1. 35 The x coordinate is found as and the y coordinate ) y = r sin? = ( 2 . 5 m ) sin 35 ° = 1. m ( 2 1. 36 The x distance out to the ? y is 2. 0 m and the y distance up to the ? y is 1. 0 m. Thus, we can use the Pythagorean theorem to ? nd the distance from the origin to the ? y as d = x 2 + y2 = ( 2. 0 m ) + (1. 0 m ) 2 = 2. 2 m 1. 37 The distance from the origin to the ? y is r in polar coordinates, and this was found to be 2. 2 m in Problem 36. The angle ? is the angle between r and the horizontal reference line (the x axis in this case). Thus, the angle can be found as tan ? = y 1. 0 m = = 0. 50 x 2. 0 m and ? = tan ? 1 ( 0. 50 ) = 27 ° The polar coordinates are r = 2. 2 m and ? = 27  ° 1. 8 The x distance between the two points is ? x = x2 ? x1 = ? 3. 0 cm ? 5. 0 cm = 8. 0 cm and the y distance between them is ? y = y2 ? y1 = 3. 0 cm ? 4. 0 cm = 1. 0 cm. The distance between them is found from the Pythagorean theorem: d= 1. 39 ? x + ? y = (8. 0 cm ) + (1. 0 cm ) = 2 2 2 2 65 cm 2 = 8. 1 cm Refer to the Figure given in Problem 1. 40 below. The Cartesian coordinates for the two given points are: x1 = r1 cos ? 1 = ( 2. 00 m ) cos 50. 0 ° = 1. 29 m y1 = r1 sin ? 1 = ( 2. 00 m ) sin 50. 0 ° = 1. 53 m x2 = r2 cos ? 2 = ( 5. 00 m ) cos ( ? 50. 0 °) = 3. 21 m y2 = r2 sin ? 2 = ( 5. 00 m ) sin ( ? 50. 0 °) = ? 3. 3 m continued on next page http://helpyoustudy. info Introduction 11 The distance between the two points is then: ? s = ( ? x ) + ( ? y ) = (1. 29 m ? 3. 21 m ) + (1. 53 m + 3. 83 m ) = 5. 69 m 2 2 2 2 1. 40 Consider the Figure shown at the right. The Cartesian coordinates for the two points are: x1 = r1 cos ? 1 y1 = r1 sin ? 1 x2 = r2 cos ? 2 y2 = r2 sin ? 2 y (x1, y1) r1 ?s ?y y1 y2 The distance between the two points is the length of the hypotenuse of the shaded triangle and is gi ven by ? s = ( ? x ) + ( ? y ) = 2 2 q1 ( x1 ? x2 ) + ( y1 ? y2 ) 2 2 (x2, y2) r2 ? x q2 x1 x2 x or ? s = (r 2 1 cos 2 ? 1 + r22 cos 2 ? ? 2r1r2 cos ? 1 cos ? 2 ) + ( r12 sin 2 ? 1 + r22 sin 2 ? 2 ? 2r1r2 sin ? 1 sin ? 2 ) = r12 ( cos 2 ? 1 + sin 2 ? 1 ) + r22 ( cos 2 ? 2 + sin 2 ? 2 ) ? 2r1r2 ( cos ? 1 cos ? 2 + sin ? 1 sin ? 2 ) i Applying the identities cos 2 ? + sin 2 ? = 1 and cos ? 1 cos ? 2 + sin ? 1 sin ? 2 = cos (? 1 ? ?2 ) , this reduces to ? s = r12 + r22 ? 2r1r2 ( cos ? 1 cos ? 2 + sin ? 1 sin ? 2 ) = 1. 41 (a) r12 + r22 ? 2r1r2 cos (? 1 ? ?2 ) With a = 6. 00 m and b being two sides of this right triangle having hypotenuse c = 9. 00 m, the Pythagorean theorem gives the unknown side as b = c2 ? a2 = ( 9. 00 m )2 ? ( 6. 00 m )2 = 6. 1 m (c) sin ? = b 6. 71 m = = 0. 746 c 9. 00 m (b) tan ? = a 6. 00 m = = 0. 894 b 6. 71 m 1. 42 From the diagram, cos ( 75. 0 °) = d L Thus, d = L cos ( 75. 0 °) = ( 9. 00 m ) cos ( 75. 0 °) = 2. 33 m L 9 . 00 m 75. 0 d http://helpyoustud y. info 12 Chapter 1 1. 43 The circumference of the fountain is C = 2? r , so the radius is C 15. 0 m = = 2. 39 m 2? 2? h h Thus, tan ( 55. 0 °) = = which gives r 2. 39 m r= h = ( 2. 39 m ) tan ( 55. 0 °) = 3. 41 m 1. 44 (a) (b) sin ? = cos ? = opposite side so, opposite side = ( 3. 00 m ) sin ( 30. 0 ° ) = 1. 50 m hypotenuse adjacent side so, adjacent side = ( 3. 00 m ) cos ( 30.  ° ) = 2 . 60 m hypotenuse (b) (d) The side adjacent to ? = 3. 00 sin ? = 4. 00 = 0. 800 5. 00 1. 45 (a) (c) (e) The side opposite ? = 3. 00 cos ? = tan ? = 4. 00 = 0. 800 5. 00 4. 00 = 1. 33 3. 00 1. 46 Using the diagram at the right, the Pythagorean theorem yields c = ( 5. 00 m ) + ( 7. 00 m ) = 8. 60 m 2 2 5. 00 m c q 7. 00 m 1. 47 From the diagram given in Problem 1. 46 above, it is seen that tan ? = 5. 00 = 0. 714 7. 00 and ? = tan ? 1 ( 0. 714 ) = 35. 5 ° 1. 48 (a) and (b) (c) See the Figure given at the right. Applying the de? nition of the tangent function to the large right triangle cont aining the 12.  ° angle gives: y x = tan 12. 0 ° [1] Also, applying the de? nition of the tangent function to the smaller right triangle containing the 14. 0 ° angle gives: y = tan 14. 0 ° x ? 1. 00 km (d) From Equation [1] above, observe that x = y tan 12. 0 ° [2] Substituting this result into Equation [2] gives y ? tan 12. 0 ° = tan 14. 0 ° y ? (1. 00 km ) tan 12. 0 ° continued on next page http://helpyoustudy. info Introduction 13 Then, solving for the height of the mountain, y, yields y= 1. 49 (1. 00 km ) tan 12. 0 ° tan 14. 0 ° tan 14. 0 ° ? tan 12. 0 ° = 1. 44 km = 1. 44 ? 10 3 m Using the sketch at the right: w = tan 35.  ° , or 100 m w = (100 m ) tan 35. 0 ° = 70. 0 m w 1. 50 The ? gure at the right shows the situation described in the problem statement. Applying the de? nition of the tangent function to the large right triangle containing the angle ? in the Figure, one obtains y x = tan ? Also, applying the de? nition of the tangent function to t he small right triangle containing the angle ? gives y = tan ? x? d Solving Equation [1] for x and substituting the result into Equation [2] yields y = tan ? y tan ? ? d The last result simpli? es to or y ? tan ? = tan ? y ? d ? tan ? y ? tan ? = y ? tan ? ? d ? tan ? ? tan ? or [2] [1] Solving for y: y ( tan ? ? tan ? ) = ? d ? tan ? ? tan ? y=? 1. 51 (a) d ? tan ? ? tan ? d ? tan ? ? tan ? = tan ? ? tan ? tan ? ? tan ? Given that a ? F m , we have F ? ma . Therefore, the units of force are those of ma, [ F ] = [ ma] = [ m][a] = M ( L T 2 ) = M L T-2 (b) L M? L [F ] = M ? 2 ? = 2 ? ? T ? T ? 1 so newton = kg ? m s2 1. 52 (a) mi ? mi ? ? 1. 609 km ? km = ? 1 ? = 1. 609 h ? h ? ? 1 mi ? h mi ? mi ? ? 1. 609 km h ? km = ? 55 ? = 88 h ? h ? ? 1 mi h ? h mi mi ? mi ? ? 1. 609 km h ? km ? 55 = ? 10 ? = 16 h h ? h ? ? 1 mi h ? h (b) vmax = 55 (c) ?vmax = 65 http://helpyoustudy. info 14 Chapter 1 1. 3 (a) Since 1 m = 10 2 cm , then 1 m 3 = (1 m ) = (10 2 cm ) = (10 2 ) cm 3 = 10 6 cm 3, giving 3 3 3 ? 1. 0 ? 10 ? 3 kg ? 3 mass = density volume = ? ? 1. 0 m 3 ? 1. 0 cm ? ( )( ) ( ) ? 10 6 cm3 ? ? kg ? 3 = ? 1. 0 ? 10 ? 3 3 ? 1. 0 m 3 ? ? = 1. 0 ? 10 kg 3 ? cm ? ? 1m ? ( ) As a rough calculation, treat each of the following objects as if they were 100% water. (b) (c) (d) 3 kg 4 cell: mass = density ? volume = ? 10 3 3 ? ? ( 0. 50 ? 10 ? 6 m ) = 5. 2 ? 10 ? 16 kg ? ? m ? 3 ? 3 4 kg 4 kidney: mass = density ? volume = ? ? ? r 3 ? = ? 10 3 3 ? ? ( 4. 0 ? 10 ? 2 m ) = 0. 27 kg ? ? ? ? m ? 3 ? 3 ? ? ?y: mass = density ? olume = ( density ) (? r 2 h ) 2 kg = ? 10 3 3 ? ? (1. 0 ? 10 ? 3 m ) ( 4. 0 ? 10 ? 3 m ) = 1. 3 ? 10 ? 5 kg ? ? m ? ? 1. 54 Assume an average of 1 can per person each week and a population of 300 million. (a) number cans person ? number cans year = ? ? ? ( population )( weeks year ) week ? ? ? ?1 ? ? can person ? 8 ? ( 3 ? 10 people ) ( 52 weeks yr ) week ? ? 2 ? 1010 cans yr , or ~10 10 cans yr (b) number of tons = ( weight can )( number cans year ) ? oz ? ? 1 lb ? ? 1 ton ? 10 can ? ? 0. 5 ? ? 2 ? 10 ? can ? ? 16 oz ? ? 2 000 lb ? yr ? ? 3 ? 10 5 ton yr , or ~10 5 ton yr Assumes an average weight of 0. oz of aluminum per can. 1. 55 The term s has dimensions of L, a has dimensions of LT? 2, and t has dimensions of T. Therefore, t he equation, s = k a m t n with k being dimensionless, has dimensions of L = ( LT ? 2 ) ( T ) m n or L1T 0 = L m T n? 2 m The powers of L and T must be the same on each side of the equation. Therefore, L1 = Lm and m =1 Likewise, equating powers of T, we see that n ? 2 m = 0, or n = 2 m = 2 Dimensional analysis cannot determine the value of k , a dimensionless constant. 1. 56 (a) The rate of ? lling in gallons per second is rate = 30. 0 gal ? 1 min ? ?2 ? ? = 7. 14 ? 10 gal s 7. 0 min ? 60 s ? continued on next page http://helpyoustudy. info Introduction 15 (b) 3 1L Note that 1 m 3 = (10 2 cm ) = (10 6 cm 3 ) ? 3 ? 3 ? 10 cm ? = 10 3 L. Thus, ? ? rate = 7. 14 ? 10 ? 2 (c) t= gal ? 3. 786 L ? ? 1 m 3 ? ?4 3 ? ? = 2. 70 ? 10 m s s ? 1 gal ? ? 10 3 L ? ? 1h ? Vfilled 1. 00 m 3 = = 3. 70 ? 10 3 s ? ? = 1. 03 h ? 4 3 rate 2. 70 ? 10 m s ? 3 600 s ? 1. 57 The volume of paint used is given by V = Ah, where A is the area covered and h is the thickness of the layer. Thus, h= V 3. 79 ? 10 ? 3 m 3 = = 1. 52 ? 10 ? 4 m = 152 ? 10 ? 6 m = 152 ? m 25. 0 m 2 A 1. 58 (a) For a sphere, A = 4? R 2 . In this case, the radius of the second sphere is twice that of the ? rst, or R2 = 2 R1. Hence, A2 4? R 2 R 2 ( 2 R1 ) 2 = = 2 = = 4 2 2 A1 4? R 1 R 1 R12 2 (b) For a sphere, the volume is Thus, V= 4 3 ? R 3 3 V2 ( 4 3) ? R 3 R 3 ( 2 R1 ) 2 = = 2 = = 8 3 3 3 V1 ( 4 3) ? R 1 R 1 R1 1. 59 The estimate of the total distance cars are driven each year is d = ( cars in use ) ( distance traveled per car ) = (100 ? 10 6 cars )(10 4 mi car ) = 1 ? 1012 mi At a rate of 20 mi/gal, the fuel used per year would be V1 = d 1 ? 1012 mi = = 5 ? 1010 gal rate1 20 mi gal If the rate increased to 25 mi gal, the annual fuel consumption would be V2 = d 1 ? 012 mi = = 4 ? 1010 gal rate2 25 mi gal and the fuel savings each year would be savings = V1 ? V2 = 5 ? 1010 gal ? 4 ? 1010 gal = 1 ? 1010 gal 1. 60 (a) The amount paid per year would be dollars ? ? 8. 64 ? 10 4 s ? ? 365. 25 days ? 10 dollars annual amount = ? 1 000 ? ? = 3. 16 ? 10 s ? ? 1. 00 day ? ? yr yr ? ? Therefore, it would take (b) 10 ? 10 12 dollars = 3 ? 10 2 yr, 3. 16 ? 10 10 dollars yr or ~10 2 yr The circumference of the Earth at the equator is C = 2? r = 2? 6. 378 ? 10 6 m = 4. 007 ? 10 7 m ( ) continued on next page http://helpyoustudy. info 16 Chapter 1 The length of one dollar bill is 0. 55 m, so the length of ten trillion bills is m ? 12 12 = ? 0. 155 ? ? (10 ? 10 dollars ) = 1? 10 m. Thus, the ten trillion dollars would dollar ? ? encircle the Earth 1 ? 1012 m n= = = 2 ? 10 4 , or ~10 4 times C 4. 007 ? 10 7 m 1. 61 (a) (b) ? 365. 2 days ? ? 8. 64 ? 10 4 s ? 1 yr = (1 yr ) ? = 3. 16 ? 10 7 s ? ? ? 1 day ? 1 yr ? ? ? Consider a segment of the surface of the Moon which has an area of 1 m2 and a depth of 1 m. When ? lled with meteorites, each having a diameter 10? 6 m, the number of meteorites along each edge of this box is n= length of an edge 1m = = 10 6 meteorite diameter 10 ? 6 m The total number of meteorites in the ? led box is then N = n 3 = 10 6 3 = 10 18 At the rate of 1 meteorite per second, the time to ? ll the box is 1y ? = 3 ? 10 10 yr, or t = 1018 s = (1018 s ) ? ? ? 7 ? 3. 16 ? 10 s ? 1. 62 ~1010 yr ( ) We will assume that, on average, 1 ball will be lost per hitter, that there will be about 10 hitters per inning, a game has 9 innings, and the team plays 81 home games per season. Our estimate of the number of game balls needed per season is then number of balls needed = ( number lost per hitter ) ( number hitters/game )( home games/year ) games ? hitters ? ? innings ? = (1 ball per hitter ) 10 ? 81 ? ? ? year ? inning ? ? game ? = 7300 balls year or ~10 4 balls year 1. 63 The volume of the Milky Way galaxy is roughly ? ?d2 ? ? VG = At = ? t ? 10 21 m 4 ? 4 ? ? ( ) (10 m ) 2 19 or VG ? 10 61 m3 r If, within the Milky Way galaxy, there is typically one neutron star in a spherical volume of radius r = 3 ? 1018 m, then the galactic volume per neutron star is V1 = 3 4 3 4 ? r = ? ( 3 ? 1018 m ) = 1 ? 10 56 m 3 3 3 or V1 ? 10 56 m 3 The order of magnitude of the number of n eutron stars in the Milky Way is then n= VG 10 61 m 3 ? V1 10 56 m 3 or n ? 10 5 neutron stars http://helpyoustudy. info 2 Motion in One Dimension QUICK QUIZZES 1. 2. (a) (a) 200 yd (b) 0 (c) 0 False. The car may be slowing down, so that the direction of its acceleration is opposite the direction of its velocity. True. If the velocity is in the direction chosen as negative, a positive acceleration causes a decrease in speed. True. For an accelerating particle to stop at all, the velocity and acceleration must have opposite signs, so that the speed is decreasing. If this is the case, the particle will eventually come to rest. If the acceleration remains constant, however, the particle must begin to move again, opposite to the direction of its original velocity. If the particle comes to rest and then stays at rest, the acceleration has become zero at the moment the motion stops. This is the case for a braking car—the acceleration is negative and goes to zero as the car comes to rest. (b) (c) 3. The velocity-vs. -time graph (a) has a constant slope, indicating a constant acceleration, which is represented by the acceleration-vs. -time graph (e). Graph (b) represents an object whose speed always increases, and does so at an ever increasing rate. Thus, the acceleration must be increasing, and the acceleration-vs. -time graph that best indicates this behavior is (d). Graph (c) depicts an object which ? rst has a velocity that increases at a constant rate, which means that the object’s acceleration is constant. The motion then changes to one at constant speed, indicating that the acceleration of the object becomes zero. Thus, the best match to this situation is graph (f). 4. Choice (b). According to graph b, there are some instants in time when the object is simultaneously at two different x-coordinates. This is physically impossible. (a) The blue graph of Figure 2. 14b best shows the puck’s position as a function of time. As seen in Figure 2. 4a, the distance the puck has traveled grows at an increasing rate for approximately three time intervals, grows at a steady rate for about four time intervals, and then grows at a diminishing rate for the last two intervals. The red graph of Figure 2. 14c best illustrates the speed (distance traveled per time interval) of the puck as a function of time. It shows the puck gaining speed for appr oximately three time intervals, moving at constant speed for about four time intervals, then slowing to rest during the last two intervals. 5. (b) 17 http://helpyoustudy. info 18 Chapter 2 (c) The green graph of Figure 2. 4d best shows the puck’s acceleration as a function of time. The puck gains velocity (positive acceleration) for approximately three time intervals, moves at constant velocity (zero acceleration) for about four time intervals, and then loses velocity (negative acceleration) for roughly the last two time intervals. 6. Choice (e). The acceleration of the ball remains constant while it is in the air. The magnitude of its acceleration is the free-fall acceleration, g = 9. 80 m/s2. Choice (c). As it travels upward, its speed decreases by 9. 80 m/s during each second of its motion. When it reaches the peak of its motion, its speed becomes zero. As the ball moves downward, its speed increases by 9. 80 m/s each second. Choices (a) and (f). The ? rst jumper will always be moving with a higher velocity than the second. Thus, in a given time interval, the ? rst jumper covers more distance than the second, and the separation distance between them increases. At any given instant of time, the velocities of the jumpers are de? nitely different, because one had a head start. In a time interval after this instant, however, each jumper increases his or her velocity by the same amount, because they have the same acceleration. Thus, the difference in velocities stays the same. . 8. ANSWERS TO MULTIPLE CHOICE QUESTIONS 1. Once the arrow has left the bow, it has a constant downward acceleration equal to the freefall acceleration, g. Taking upward as the positive direction, the elapsed time required for the velocity to change from an initial value of 15. 0 m s upward ( v0 = +15. 0 m s ) to a value of 8. 00 m s downward ( v f = ? 8. 00 m s ) is given by ? t = ? v v f ? v0 ? 8. 00 m s ? ( +15. 0 m s ) = = = 2. 35 s a ? g ? 9. 80 m s 2 Thus, the correct choice is (d). 2. In Figure MCQ2. 2, there are ? ve spaces separating adjacent oil drops, and these spaces span a distance of ? x = 600 meters. Since the drops occur every 5. 0 s, the time span of each space is 5. 0 s and the total time interval shown in the ? gure is ? t = 5 ( 5. 0 s ) = 25 s. The average speed of the car is then v= ? x 600 m = = 24 m s ? t 25 s making (b) the correct choice. 3. The derivation of the equations of kinematics for an object moving in one dimension (Equations 2. 6 through 2. 10 in the textbook) was based on the assumption that the object had a constant acceleration. Thus, (b) is the correct answer. An object having constant acceleration would have constant velocity only if that acceleration had a value of zero, so (a) is not a necessary condition. The speed (magnitude of the velocity) will increase in time only in cases when the velocity is in the same direction as the constant acceleration, so (c) is not a correct response. An object projected straight upward into the air has a constant acceleration. Yet its position (altitude) does not always increase in time (it eventually starts to fall back downward) nor is its velocity always directed downward (the direction of the constant acceleration). Thus, neither (d) nor (e) can be correct. http://helpyoustudy. info Motion in One Dimension 19 4. The bowling pin has a constant downward acceleration ( a = ? g = ? 9. 80 m s 2 ) while in ? ght. The velocity of the pin is directed upward on the upward part of its ? ight and is directed downward as it falls back toward the juggler’s hand. Thus, only (d) is a true statement. The initial velocity of the car is v0 = 0 and the velocity at time t is v. The constant acceleration is therefore given by a = ? v ? t = ( v ? v0 ) t = ( v ? 0 ) t = v t and the average velocity of the car is v = ( v + v0 ) 2 = ( v + 0 ) 2 = v 2. The distance traveled in time t is ? x = vt = vt 2. In the special case where a = 0 ( and hence v = v0 = 0 ) , we see that statements (a), (b), (c), and (d) are all correct. However, in the general case ( a ? , and hence v ? 0 ), only statements (b) and (c) are true. Statement (e) is not true in either case. The motion of the boat is very similar to that of a object thrown straight upward into the air. In both cases, the object has a constant acceleration which is directed opposite to the direction of the initial velocity. Just as the object thrown upward slows down and stops momentarily before it starts speeding up as it falls back downward, the boat will continue to move northward for some time, slowing uniformly until it comes to a momentary stop. It will then start to move in the southward direction, gaining speed as it goes. The correct answer is (c). In a position versus time graph, the velocity of the object at any point in time is the slope of the line tangent to the graph at that instant in time. The speed of the particle at this point in time is simply the magnitude (or absolute value) of the velocity at this instant in time. The displacement occurring during a time interval is equal to the difference in x-coordinates at the ? nal and initial times of the interval ? x = x t f ? x ti . 5. 6. 7. ( ) The average velocity during a time interval is the slope of the straight line connecting the points on the curve corresponding to the initial and ? al times of the interval ? v = ? x ? t = ( x f ? xi ) ( t f ? ti ) ? . Thus, we see how the quantities in choices (a), (e), (c), and (d) ? ? can all be obtained from the graph. Only the acceleration, choice (b), cannot be obtained from the position versus time graph. 8. From ? x = v0 t + 1 at 2, the distance traveled in time t, starting from rest ( v0 = 0 ) wit h constant 2 acceleration a, is ? x = 1 at 2 . Thus, the ratio of the distances traveled in two individual trials, one 2 of duration t1 = 6 s and the second of duration t 2 = 2 s, is 2 2 ? x2 1 at 2 ? t 2 ? ? 2 s ? 1 2 = 1 2 =? ? =? ? = ? x1 2 at1 ? 1 ? ? 6 s ? 9 and the correct answer is (c). 2 9. The distance an object moving at a uniform speed of v = 8. 5 m s will travel during a time interval of ? t = 1 1 000 s = 1. 0 ? 10 ? 3 s is given by ? x = v ( ? t ) = (8. 5 m s ) (1. 0 ? 10 ? 3 s ) = 8. 5 ? 10 ? 3 m = 8. 5 mm so the only correct answer to this question is choice (d). 10. Once either ball has left the student’s hand, it is a freely falling body with a constant acceleration a = ? g (taking upward as positive). Therefore, choice (e) cannot be true. The initial velocities of the red and blue balls are given by viR = + v0 and viB = ? 0 , respectively. The velocity of either ball when it has a displacement from the launch point of ? y = ? h (where h is the height of the building) is found from v 2 = vi2 + 2a ( ? y ) as follows: 2 vR = ? viR + 2a ( ? y ) R = ? ( + v0 ) 2 + 2 ( ? g ) ( ? h ) = ? 2 v0 + 2 gh http://helpyoustudy. info 20 Chapter 2 and 2 vB = ? viB + 2a ( ? y ) B = ? ( ? v0 ) 2 + 2 ( ? g ) ( ? h ) = ? 2 v0 + 2 gh Note that the negative sign was chosen for the radical in both cases since each ball is moving in the downward direction immediately before it reaches the ground. From this, we see that choice (c) is true. Also, the speeds of the two balls just before hitting the ground are 2 2 2 2 vR = ? v0 + 2 gh = v0 + 2 gh v0 and vB = ? v0 + 2 gh = v0 + 2 gh v0 Therefore, vR = vB , so both choices (a) and (b) are false. However, we see that both ? nal speeds exceed the initial speed and choice (d) is true. The correct answer to this question is then (c) and (d). 11. At ground level, the displacement of the rock from its launch point is ? y = ? h , where h is the 2 height of the tower and upward has been chosen as the positive direction. From v 2 = vo + 2a ( ? y ) , the speed of the rock just before hitting the ground is found to be 2 2 v =  ± v0 + 2a ( ? y ) = v0 + 2 ( ? g ) ( ? h ) = (12 m s )2 + 2 ( 9. 8 m s2 ) ( 40. 0 m ) = 30 m s Choice (b) is therefore the correct response to this question. 12. Once the ball has left the thrower’s hand, it is a freely falling body with a constant, non-zero, acceleration of a = ? g . Since the acceleration of the ball is not zero at any point on its trajectory, choices (a) through (d) are all false and the correct response is (e). ANSWERS TO EVEN NUMBERED CONCEPTUAL QUESTIONS . Yes. The particle may stop at some instant, but still have an acceleration, as when a ball thrown straight up reaches its maximum height. (a) (b) 6. (a) No. They can be used only when the acceleration is constant. Yes. Zero is a constant. In Figure (c), the images are farther apart for each successive time interval. The object is moving toward the right and speeding up. This means that the accele ration is positive in Figure (c). In Figure (a), the ? rst four images show an increasing distance traveled each time interval and therefore a positive acceleration. However, after the fourth image, the spacing is decreasing, showing that the object is now slowing down (or has negative acceleration). In Figure (b), the images are equally spaced, showing that the object moved the same distance in each time interval. Hence, the velocity is constant in Figure (b). At the maximum height, the ball is momentarily at rest (i. e. , has zero velocity). The acceleration remains constant, with magnitude equal to the free-fall acceleration g and directed downward. Thus, even though the velocity is momentarily zero, it continues to change, and the ball will begin to gain speed in the downward direction. The acceleration of the ball remains constant in magnitude and direction throughout the ball’s free ? ight, from the instant it leaves the hand until the instant just before it strikes the 4. (b) (c) 8. (a) (b) http://helpyoustudy. info Motion in One Dimension 21 ground. The acceleration is directed downward and has a magnitude equal to the freefall acceleration g. 10. (a) Successive images on the ? lm will be separated by a constant distance if the ball has constant velocity. Starting at the right-most image, the images will be getting closer together as one moves toward the left. Starting at the right-most image, the images will be getting farther apart as one moves toward the left. As one moves from left to right, the balls will ? rst get farther apart in each successive image, then closer together when the ball begins to slow down. (b) (c) (d) ANSWERS TO EVEN NUMBERED PROBLEMS 2. 4. 6. (a) (a) (a) (d) 8. (a) (d) 10. 12. (a) (a) (d) 14. 16. (a) 2 ? 10 4 mi 10. 04 m s 5. 00 m s ? 3. 33 m s +4. 0 m s 0 2. 3 min L t1 2 L ( t1 + t 2 ) 1. 3 ? 10 2 s (b) 13 m (b) (b) 64 mi ? L t 2 (c) 0 (b) (b) (b) (e) (b) ? x 2 RE = 2. 4 7. 042 m s 1. 25 m s 0 ? 0. 50 m s (c) ? 1. 0 m s (c) ? 2. 50 m s a) The trailing runner’s speed must be greater than that of the leader, and the leader’s distance from the ? nish line must be great enough to give the trailing runner time to make up the de? cient distance. (b) t = d ( v1 ? v2 ) (c) d2 = v2 d ( v1 ? v2 ) 18. (a) Some data points that can be used to plot the graph are as given below: x (m) t (s) (b) (c) 5. 75 1. 00 16 . 0 2. 00 35. 3 3. 00 68. 0 4. 00 119 5. 00 192 6. 00 41. 0 m s , 41. 0 m s , 41. 0 m s 17. 0 m s , much smaller than the instantaneous velocity at t = 4. 00 s l http://helpyoustudy. info 22 Chapter 2 20. 22. 24. (a) 20. 0 m s , 5. 00 m s (b) 263 m 0. 91 s (i) (a) (ii) (a) 0 0 (b) (b) 1. 6 m s 2 1. 6 m s 2 500 x (m) (c) (c) 0. 80 m s 2 0 26. The curves intersect at t = 16. 9 s. car police officer 250 0 0 4. 00 8. 00 12. 0 16. 0 20. 0 t (s) 28. 30. a = 2. 74 ? 10 5 m s 2 = ( 2. 79 ? 10 4 ) g (a) (b) (e) 32. (a) (d) 34. 36. 38. 40. (a) (a) (a) (a) (c) 42. 44. 46. 48. 95 m 29. 1 s 1. 79 s v 2 = vi2 + 2a ( ? x ) f 8. 00 s 13. 5 m 22. 5 m 20. 0 s 5. 51 km 107 m v = a1t1 (c) a = ( v 2 ? vi2 ) 2 ( ? x ) f (d) 1. 25 m s 2 (b) 13. 5 m (c) 13. 5 m (b) (b) (b) (b) No, it cannot land safely on the 0. 800 km runway. 20. 8 m s, 41. 6 m s, 20. 8 m s, 38. 7 m s 1. 49 m s 2 ? = 1 a1t12 2 2 ? xtotal = 1 a1t12 + a1t1t 2 + 1 a2 t 2 2 2 (a) Yes. (b) vtop = 3. 69 m s (c) ?v downward = 2. 39 m s (d) No, ? v upward = 3. 71 m s. The two rocks have the same acceleration, but the rock thrown downward has a higher average speed between the two levels, and is accelerated over a smaller time interval. http://helpyoustudy. info Motion in One Dimension 23 50. 52. (a) (a) (c) 21. 1 m s v = ? v0 ? gt = v0 + gt v = v0 ? gt , d = 1 gt 2 2 29. 4 m s ? 202 m s 2 4. 53 s vi = h t + gt 2 (b) (b) 19. 6 m d = 1 gt 2 2 (c) 18. 1 m s, 19. 6 m 54. 56. 58. 60. 62. 64. (a) (a) (a) (a) (b) (b) (b) (b) 44. 1 m 198 m 14. m s v = h t ? gt 2 See Solutions Section for Motion Diagrams. Yes. The minimum acceleration needed to complete the 1 mile distance in the allotted time is amin = 0. 032 m s 2 , considerably less than what she is capable of producing. (a) (c) y1 = h ? v0 t ? 1 gt 2 , y2 = h + v0 t ? 1 gt 2 2 2 2 v1 f = v2 f = ? v0 + 2 gh (d) 66. (b) t 2 ? t1 = 2 v0 g y2 ? y1 = 2 v0 t as long as both balls are still in the air. 68. 70. 3. 10 m s (a) (c) 3. 00 s (b) v0 ,2 = ? 15. 2 m s v1 = ? 31. 4 m s, v2 = ? 3 4. 8 m s 2. 2 s only if acceleration = 0 (b) (b) ? 21 m s Yes, for all initial velocities and accelerations. 72. 74. (a) (a) PROBLEM SOLUTIONS 2. 1 We assume that you are approximately 2 m tall and that the nerve impulse travels at uniform speed. The elapsed time is then ? t = 2. 2 (a) 2m ? x = = 2 ? 10 ? 2 s = 0. 02 s v 100 m s At constant speed, c = 3 ? 108 m s, the distance light travels in 0. 1 s is ? x = c ( ? t ) = ( 3 ? 108 m s ) ( 0. 1 s ) ? 1 mi ? ? 1 km ? 4 = ( 3 ? 10 7 m ) ? ? = 2 ? 10 mi 3 ? 1. 609 km ? ? 10 m ? (b) Comparing the result of part (a) to the diameter of the Earth, DE, we ? nd 3. 0 ? 10 7 m ? x ? x = = ? 2. 4 DE 2 RE 2 ( 6. 38 ? 10 6 m ) ( with RE = Earth’s radius ) http://helpyoustudy. info 24 Chapter 2 2. 3 Distances traveled between pairs of cities are ? x1 = v1 ( ? t1 ) = (80. 0 km h ) ( 0. 500 h ) = 40. 0 km ? x2 = v2 ( ? t 2 ) = (100 km h ) ( 0. 200 h ) = 20. 0 km ? x3 = v3 ( ? t3 ) = ( 40. 0 km h ) ( 0. 750 h ) = 30. 0 km Thus, the total distance traveled is ? x = ( 40. 0 + 20. 0 + 30. 0 ) km = 90. 0 km, and the elapsed time is ? t = 0. 500 h + 0. 200 h + 0. 750 h + 0. 250 h = 1. 70 h. (a) (b) v= ? x 90. 0 km = = 52. 9 km h ? t 1. 70 h ?x = 90. 0 km (see above) v= v= ? x 2. 000 ? 10 2 m = = 10. 04 m s ? t 19. 92 s 2. 4 (a) (b) 2. 5 (a) ?x 1. 000 mi ? 1. 609 km ? ? 10 3 m ? = ? ? = 7. 042 m s ? t 228. 5 s ? 1 mi ? 1 km ? Boat A requires 1. 0 h to cross the lake and 1. 0 h to return, total time 2. 0 h. Boat B requires 2. 0 h to cross the lake at which time the race is over. Boat A wins, being 60 km ahead of B when the race ends. Average velocity is the net displacement of the boat divided by the total elapsed time. The winning boat is back where it started, its displacement thus bei ng zero, yielding an average velocity of zero . (b) 2. 6 The average velocity over any time interval is ? x x f ? xi = ? t t f ? ti ? x 10. 0 m ? 0 v= = = 5. 00 m s ? t 2. 00 s ? 0 v= (a) (b) (c) (d) (e) v= v= v= v= ? x 5. 00 m ? 0 = = 1. 25 m s ? 4. 00 s ? 0 ? x 5. 00 m ? 10. 0 m = = ? 2. 50 m s ? t 4. 00 s ? 2. 00 s ? x ? 5. 00 m ? 5. 00 m = = ? 3. 33 m s ? t 7. 00 s ? 4. 00 s 0? 0 ? x x2 ? x1 = = = 0 ? t t 2 ? t1 8. 00 s ? 0 2. 7 (a) (b) 1h ? Displacement = ? x = (85. 0 km h ) ( 35. 0 min ) ? ? ? + 130 km = 180 km ? 60. 0 min ? 1h ? The total elapsed time is ? t = ( 35. 0 min + 15. 0 min ) ? ? ? + 2. 00 h = 2. 83 h ? 60. 0 min ? so, v= ? x 180 km = = 63. 6 km h ? t 2. 84 h http://helpyoustudy. info Motion in One Dimension 25 2. 8 The average velocity over any time interval is ? x x f ? xi = ? t t f ? ti ? x 4. 0 m ? 0 v= = = + 4. 0 m s ? t 1. 0 s ? 0 ? ? 2 . 0 m ? 0 v= = = ? 0. 50 m s ? t 4. 0 s ? 0 v= (a) (b) (c) (d) v= v= ? x 0 ? 4. 0 m = = ? 1. 0 m s ? t 5. 0 s ? 1. 0 s ? x 0? 0 = = 0 ? t 5. 0 s ? 0 2. 9 The plane starts from rest ( v0 = 0 ) and maintains a constant acceleration of a = +1. 3 m s 2 . Thus, we ? nd the distance it will travel before reaching the required takeoff speed ( v = 75 m s ) , from 2 v 2 = v0 + 2a ( ? x ) , as ? x = 2 v 2 ? v0 ( 75 m s ) ? 0 = = 2. 2 ? 10 3 m = 2. 2 km 2 2a 2 (1. 3 m s ) 2 Since this distance is less than the length of the runway, the plane takes off safely. 2. 10 (a) The time for a car to make the trip is t = cars to omplete the same 10 mile trip is ? t = t1 ? t 2 = (b) ? x ? x ? 10 mi 10 mi ? ? 60 min ? ? =? ? ? = 2. 3 min v1 v2 ? 55 mi h 70 mi h ? ? 1 h ? ?x . Thus, the difference in the times for the two v When the faster car has a 15. 0 min lead, it is ahead by a distance equal to that traveled by the slower car in a time of 15. 0 min. This distance is given by ? x1 = v1 ( ? t ) = ( 55 mi h ) (15 min ). The faster car pulls ahead of the slower car at a rate of vrelative = 70 mi h ? 55 mi h = 15 mi h Thus, the time required for it to get distance ? x1 ahead is ? t = ? x1 = vrelative ( 55 mi h ) (15 min ) 15. 0 mi h = 55 min Finally, the distance the faster car has traveled during this time is ? x2 = v2 ( ? t ) = 2. 11 (a) ( 70 mi h ) ( 55 min ) ? ? 1h ? ? = 64 mi ? 60 min ? From v 2 = vi2 + 2a ( ? x ) , with vi = 0 , v f = 72 km h , and ? x = 45 m, the acceleration of the f cheetah is found to be km ? ? 10 3 m ? ? 1 h 72 ? 0 h ? ? 1 km ? ? 3 600 s v 2 ? vi2 f a= = = 4. 4 m s 2 2 ( ? x ) 2 ( 45 m ) continued on next page 2 http://helpyoustudy. info 26 Chapter 2 (b) The cheetah’s displacement 3. 5 s after starting from rest is 1 1 2 ? x = vi t + at 2 = 0 + ( 4. 4 m s 2 ) ( 3. 5 s ) = 27 m 2 2 2. 12 (a) (b) (c) (d) 1 = v2 = ( ? x )1 + L = = + L t1 ( ? t )1 t1 ( ? x )2 ? L = = ? L t2 ( ? t )2 t 2 ( ? x ) total ( ? x )1 + ( ? x )2 + L ? L 0 = = = 0 = t1 + t 2 t1 + t 2 t1 + t 2 ( ? t ) total +L + ? L total distance traveled ( ? x )1 + ( ? x )2 2L = = = ( ave. speed )trip = t1 + t 2 t1 + t 2 t1 + t 2 ( ? t ) total vtotal = The total time for the trip is t total = t1 + 22 . 0 min = t1 + 0. 367 h , where t1 is the time spent traveling at v1 = 89. 5 km h. Thus, the distance traveled is ? x = v1 t1 = vt total, which gives 2. 13 (a) (89. 5 km h ) t1 = ( 77. 8 km h ) ( t1 + 0. 367 h ) = ( 77. 8 km h ) t1 + 28. 5 km or, (89. 5 km h ? 77. km h ) t1 = 28. 5 km From which, t1 = 2 . 44 h for a total time of t total = t1 + 0. 367 h = 2. 81 h (b) The distance traveled during the trip is ? x = v1 t1 = vt total, giving ? x = v ttotal = ( 77. 8 km h ) ( 2. 81 h ) = 219 km 2. 14 (a) At the end of the race, the tortoise has been moving for time t and the hare for a time t ? 2 . 0 min = t ? 120 s. The speed of the tortoise is vt = 0. 100 m s, and the speed of the hare is vh = 20 vt = 2 . 0 m s. The tortoise travels distance xt, which is 0. 20 m larger than the distance xh traveled by the hare. Hence, xt = xh + 0. 20 m which becomes or vt t = vh ( t ? 120 s ) + 0. 0 m ( 0. 100 m s ) t = ( 2 . 0 m s ) ( t ? 120 s ) + 0. 20 m t = 1. 3 ? 10 2 s This gives the time of the race as (b) 2. 15 xt = v t t = ( 0. 100 m s ) (1. 3 ? 10 2 s ) = 13 m The maximum allowed time to complete the trip is t total = total distance 1600 m ? 1 km h ? = ? ? = 23. 0 s required average speed 250 km h ? 0. 278 m s ? The time spent in the ? rst half of the trip is t1 = half distance 800 m ? 1 km h ? = ? ? = 12 . 5 s v1 230 km h ? 0. 278 m s ? continued on next page http://helpyoustudy. info Motion in One Dimension 27 Thus, the maximum time that can be spent on the second half of the trip is t 2 = t total ? 1 = 23. 0 s ? 12 . 5 s = 10. 5 s and the required average speed on the second half is v2 = 2. 16 (a) ? 1 km h ? half distance 800 m = = 76. 2 m s ? ? = 274 km h t2 10. 5 s ? 0. 278 m s ? In order for the trailing athlete to be able to catch the leader, his speed (v1) must be greater than that of the leading athlete (v2), and the distance between the leading athlete and the ? nish line must be great enough to give the trailing athlete suf? cient time to make up the de? cient distance, d. During a t ime t the leading athlete will travel a distance d2 = v2 t and the trailing athlete will travel a distance d1 = v1t . Only when d1 = d2 + d (where d is the initial distance the trailing athlete was behind the leader) will the trailing athlete have caught the leader. Requiring that this condition be satis? ed gives the elapsed time required for the second athlete to overtake the ? rst: d1 = d2 + d giving or v1t = v2 t + d or t = d ( v1 ? v2 ) (b) v1t ? v2 t = d (c) In order for the trailing athlete to be able to at least tie for ? rst place, the initial distance D between the leader and the ? nish line must be greater than or equal to the distance the leader can travel in the time t calculated above (i. e. , the time required to overtake the leader). That is, we must require that D ? d2 = v2 t = v2 ? d ( v1 ? v2 ) ? ? ? or D? v2 d v1 ? v2 2. 17 The instantaneous velocity at any time is the slope of the x vs. t graph at that time. We compute this slope by using two points on a straight segment of the curve, one point on each side of the point of interest. (a) (b) (c) (d) vt=1. 00 s = vt=3. 00 s = 10. 0 m ? 0 = 5. 00 m s 2 . 00 s ? 0 ( 5. 00 ? 10. 0 ) m = ? 2 . 50 m s ( 4. 00 ? 2 . 00 ) s ( 5. 00 ? 5. 00 ) m vt=4. 50 s = = 0 ( 5. 00 ? 4. 00 ) s 0 ? ( ? 5. 00 m ) vt=7. 50 s = = 5. 00 m s (8. 00 ? 7. 00 ) s http://helpyoustudy. info 28 Chapter 2 2. 18 How to cite College Physics 9e, Essay examples