Midterm2 Sample3 - _ First Letter of Last Name; Mid'I‘erm...

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Unformatted text preview: _ First Letter of Last Name; Mid'I‘erm #2 — Nov 13, 2003 TIME: 50 minutes Physics 153 — Section 003 - CANDIDATES NAME; I g . . Q ' - Last Name _ First Name Or Initials STUDENT NUMBER: THIS EXAMINATION 'CONSISTS 4 PAGES. CHECK TO ENEURE THAT THIS PAPER IS COMPLETE. . — . INSTRUCTOR’S NAME: SECTION NUMBER: - (a) Each candidate should be prepared to produce, upon request, his/ her library/AMS' card;- and Observe the following'additional rules: No candidate shall be permitted to enter the examination room after the expiration of . one—half hour, or leave during the first half—hour of the examination- Candidates are not permitted to ask questions of the invigilators, except in doses of supposed errors or ambiguities in examination questions. CAUTION: Candidates guilty of anyr of the following, or similar, dishonest practices ' ' shall be immediately dismissed from the examination and shall be liable to disciplinary action-Q (a) Make use of any books, memoranda, calculators, audio or visual cassette players or other memory aid devices, other than authorized by the examiners. (b) Speaking or communicating with other candidates- ((5) Purposer exposing written paper to View of other candidates. The'plea of accident or forgetfulness shall not be received. ' ---.. (c) SMOKING IS NOT PERMITTED DURING EXAMINATIONS I Question is 10 points: 1 2 3 __ 10 10 10 . 'Ibtal Mark out of 30- Total: 30 ,2” 1. A block of unknown mass m is attached to ahorizontal spring whose spring constant k = 6.50 Nlm. It is then set oscillating on a frictionless surface With an amplitude A = 10 cms. The position and Velocity of the block at t=0 are measured to be +4.0 cuts and + 30.0 cmslsec, respectively. Calculate 3 (a) the phase constant t1), IQ We '1 (b) the period T,- ' - (c) the mass m, = 2. (l (d) the maximum acceleration am, C1) (e)'the total energy of the'system._ .._ (o - ‘. -' - - ' a) 7L" fimwhcp) H) :20; Osage... fiwfiaacfvmwm‘? l?) W“): k "MK. MA 6‘): P10 =,3__9_ 17‘ “01' stat—(Mr) room’- 6‘).- 3Ilq‘kz—a'é' 3 277- :: II: git-:fr‘lu C) m; LL: 6‘50 L M T 3.2- _ ‘1‘ wM‘M (W) N R If” "‘ V ‘— I m .1; ~ :5 m’fli;060‘3k§ SnuLfiw WI, M —3- _ 2.(a) One mole of an ideal monotonic gas is taken through the cycle abca showu below. [1) (i) What is the change in internal energy in going from b —+ c ? %? (ii) What is the change in entropy in going from b -—> c ‘2 -) (iii) What are'the changes in the internal energy and entropy in going through the cycle abca ? _ _ Express all your answers in terms of pa, V0 and To_( the values at point a ). t?) u! : (T _T) : ovonMRTa \ar ' . . k. b bee Mot! _<; b _ v! o I - P0(Wa)#M£/Tb - bwaczncvu’q'm {Jet/«Mr TV»th . s «(mom imam :5 rev, : 3w; ammo W the system ( assume that c.r = 4190 Jlkg K). ‘T; 2 50 «C = 32 3 K I; . :3 3;... : gilt; = 33M - , 9; do: :91ch fish/'3 J 5T. 3”? I WWMW _ @)2.(b) 1.0 kg of water at 100.0°C is mixedr with 1.0 kg of water at 00°C what is the total change in entropy of ' . (90 =«ch T613'L'LT _. «moi/0L (*(qe)fiw(o‘géé) _ :13 1F— ' _ 23 313): 90 m a Mum/10‘ at; «WM-:92 ‘“ W for. 3. A 12-0 kg watermelon is dropped onto the pan of a Safeway spring scale (with force constant 2000 me). (I) (a) What is the equilibrium position of the system when it-finally comes to rest ? ( assume that the pan has a mass of 1.5 kg ). Q) (b) If the pan initially fails to a point 15 cms below the original unstretched position of the spnng what is the velocity of the system immediately after the watermelon strikes it ? 2-) (c) What is the amplitude of the resulting oscillation ? - «- :L) (d) What is the speed of the pan as it passes through its equilibrium position ? l kid/700) (g) (e) What value b for the damping term will cause the amplitude to decrease by 30% over I penod ? _\ \ - '\ 1‘ \ . t \ Q) Zl‘VK ‘ Z‘F=O = Q511+mz)3"k/HE - 10 (utowsflwl haw» A ' Row 11/. _ 6 V} - .l m _ ’ 32‘ [IE " 0066117.: W R (LL v l t -' "'- U + .— J— _ . 'i I1 [fifltll‘fi ' 9;“) - D W \ S 5M W M W16 1 . 1—033) “(Ht— 13.5(q.s:)(od$); HWOXO ,5) F 6.45 v} = 22.50 — W3? : 2J9?) CB — 31—- 15 .2 OHS “0.0661: (SAWM— W“ W Jiglfim") VEL'r kit-35L 4 9 3%: Icy; {F IBaSMJIXOa 6&3 ’U‘g?’ : ilk (Zp1—}€1)’@i+l1")(gr‘ale)flz {900 (045 -0.066127-—UAH 101 “(5 s: "- 7- ‘1}‘01 V51: l'oLi’ ""' I: e l f _-___________.._._. %MW£WW ‘ Mmé‘wéflwtiy 17> '35: k Xi} '-‘- J;(Ht+o‘1t) DEF!” r ‘ (20W)£xt{3_l;)z :— dD‘ClS U5 1 i000 (3|OLKW'3): {‘oLf"w%_L M Vaillozfi [3“: MS ‘T I? | - K83 MTVMO M0): M0) etbiirt => M(oau)="'%f737§3 03m A :2 _ . Z W _ ‘1 My Since/(A) $flfifimv ‘M’I 11‘:qu MEN”, 7% * b: owl/- Ll/ (7S 0516. ...
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This note was uploaded on 03/13/2008 for the course PHYSICS 153 taught by Professor Witt during the Spring '08 term at The University of British Columbia.

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Midterm2 Sample3 - _ First Letter of Last Name; Mid'I‘erm...

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