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Solutions_midterm2_07W_term1

Solutions_midterm2_07W_term1 - First Letter of Last Name D...

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Unformatted text preview: First Letter of Last Name: D The University of British Columbia Midterm 2 - November 14, 2131]? Physics 153 Elements of Physics TIME: fill minutes CANDIDATE'S NAME: _.—_— Last Name First Name or Initials SIGNATURE: STUDENT NUMBER: THIS EXAMINATION CONSISTS OF 3 QUESTIONS AND TOTAL OF 4 PAGES. CHECK TO ENSURE THAT THIS PAPER IS COMPLETE. INSTR-UCTO R‘S NAME: SECTION NUMBER: {a} Each candidate should be prepared to produce, upon request, hisfher libraryg’Ah-IS card, driver’s licence or other photo ID- {bl Picad and obsarve the following additional rules: No candidate shall be permitted to enter the examination room after the expiration of onehalf hour, or leave during the first half-hour of the examination. Candidates are not permitted to ask questions of the invigilators, except in cases of supposed errors or ambiguities in examination questiona CAUTION: Candidates guilty of any 'of the following, or'simiiar, dishonest practices shall be immediately dismissed Erom the examination and shall be liable to disciplinary action. {a} Making use of an}r books, memoranda, programmable calculators, audio or video cassette players or other memory aid devices I: la PDAs or cell phones J not specifically authorized by the examiners. {b} Speaking or communicating with other candidates. Each Question is worth a total of It} points: L 3 _ ill ll] 10 Total score is out of 3|] points. Total: _ 3t} Name: 1. An ideal diatomic gas with initial volume it; = 25 titers, Pa = 4 aim, and temperature Ta 2 3513K at paint a Ec-Ilsws the cycle helew. The path a tn ’0 is adiabatic anti the volume ti'enhles. Find the temperature at points h and c. What is the change in entropy from a te b? What is the change in entropy Ercnn [1 ts e? If the cycle is run as a heat engine, what is its efficiency? Tc 7: 533 aim '5 “‘33:? , an? ' ___; 1 Z fig- Ti 9 gambit!” If“) a"??_b as I: 5'- Tfl ‘ F' -L a T J; _ Ch: :1 ”LC—F J?" {1;} {53 Jb 1?; I Eff 3-3453: 15rd Had-K t a F m1 = in new F59 ”E- 44*». " fi§Z¢3L~.:E 23' L4» 2 1r "TL: EL __ {agikfi-Klfi in: with Afihi _' “2' 3. is x ,3 3:45" Cu 1") aHRFK T; Vic. :- l r T: q ”E: f" 3'4,“ $.51}?! ’4 0:35 fi m, 35% f Name; 2 A mess of LIE} grains is attnnhed te a. heiieentei spring with motion given by the graph belew x {cm} LU 115' \ e.- F ind the eenetnnte in the equation 1:— — A eeeliwrt + :15) which deeerihes the metien ee 11 function of time. in. Find the springeenstent for the spring. (w A 7' : 1113:1132 5"“) 6"”- M: 2.11; 3,,ch .1--—" (“O a;- ? ’_'_-_—_=/+ X:— 4625:4611th a) : An mature +111) 11121.1 6’: 5:51) '11. 2111: m. m: em: CfléreFXSF-S'rr-fifi). : CW (57"?(fl’) SEngrecpr: D. 6:5:- 416(- /fro [}1—:—!; 75-13% @1111? — Egg Name: 3. A cyclist has ”a 12 kgmcuntain bike which her; four shc'cic flhfifll’bflrfi', one on each fcrk at the Ercnt, and one on each Ecrk al. the back. The bicycle cage h}? 16 cm whcri the BE] kg cyclist mcunts it. The cyclist is riding the hike in a fhrcstcd trail and rides cver a tree robt every 5 m. a. If h = lflfl strm determine hcw- much the amplitude cit" vibration of the hike decreases; during each period of cecflleticn. h. At whet hike spiced deer: the hike reach a maximurh amplitude of vibration? “U (0.) A‘: flu: Q 2”” PLHFIFCJ FF 1? mj r £61 ficrifl I [email protected]) 4r: 4% ”/h- - f. 2' — (at? w mew-er __ r ee» — 4 F: @127; i: Xvi“? 19159 Firefi- ...
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