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test1mwf - Problem la A periodic wave is written as y...

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Unformatted text preview: Problem la A periodic wave is written as y = (0.01m)Sin(12.56x + 25.120}? a) Is this wave longitudinal or transverse? (3) b) What is the amplitude? (3) c) What is the wavelength? (4) d) What is the frequency? (4) e) What is its velocity? A (—5 .1. 3/2 , (6) I! , (mo/m a) ’l’Y/wte; Veid’e: l”/‘3 W ”gm if ‘r .- A7“; (KX-l' WE) v») a! 1 ” A 1 (palm fl _ ,, 2 , 2 223: 2 MM 6) k: 2E:/2‘55W‘ ”1"2‘56 ' >~ ‘CU :— £5.31;— 5 4H?- (4‘) DU: 25'74’ 7f‘d i;- éi'Z 3 : ’A.’= 2"")5’ a) \/ 7[ . A v 1 » 2W/5 X ,9 Problemlb If the wave of la is traveling on a string which has a tension of lOON, how much energy will it transport per second? , A2 ~-2 F n- .4,— w 7 . 2 : Ly (0191)” (2542) X493... 2 32, ; /53 x [0,-2 J75 Problem 2a What is sound? (5) find “éxfiam‘c’d Wade M5146 fiQafipeML% ”as bahwwa QOHg au&, 2Om00H2- Problem 2b 7kBT m The speed of sound in a gas is written as V5 = Where T is the temperature and m is the mass of the gas molecules. a) Why is there a 7 in this equation? (5) b) If VS = 340 m/s at room temperature (2 27C) at what temperature will VS be 680 m/s? sa.\V)0{ £0 a; CLLZS’P’MIWQME" (LSz-JCF/L‘el, j"? S (n. C" fitbk‘czox'cflo) “) , (”Ia 9g («h/‘61 {‘1 Volume (U) W% I” as can? ( can (A 1:3 PYeéwaL C q?) wwfi b ‘4’) < .. (TD (Le/S CN\‘ (.1) C at; Prejzwgg LOCI/eke- axle “Mud l' kucM; /'”@/€9/lxi'~zm (Deaf-we: ,2“ 506$qu Vi Jan/age ailvéuf/saé‘kxfil; L63 4 I»: 52) Wéj’e’x chick/E“ “ATE Ve I'S “NE; Maia «Ma/fie - Cé; hen/i" “7 ‘OC; 01:; ‘jdyv‘: “m JAM 7/) l P, V ‘ ‘ DQ _: 0 ‘ W LU‘ Pfl’dm LS fiaflna/QQOJ—c g‘, . H em W’A 0‘1, . ¢ . — K- '\ c: P 0mg! V 09?? WY: (34% L7, (”Hm/3 (GLM‘Q‘K ’V‘J‘ 4221/4” WV US . ’ > !( (0) V3 2 TkgT y, tag/Lg TIS ’V‘ keA’L7W 7M w :jl _ 2 50 .12; : if U31!) \ ’r‘ ‘l T : 27+273 2.300 K Ii) E: IZDuk UV @216 Problem 2c . ' 2 2 Would 1t bother you 1f we wrote for a pressure wave P 2100 AZ" — 105 % Cos (kx — cot) ? Justify your answer. (5) 895’. Quad—e act“ (The 6&wa l (W10 («(7 CL TY‘efiwm Ca V\ V! o k L3 3 )(Wa’c‘b 2-6.1 m LLQ‘ 0 W143 LLQ/ 7 23 97¢ , Ne = “ 74/ /PY!/§Scpte Mf/CW/f . (an T l (/C 6: >1. Um) 6/” k QL' b1 FY4943 u/LQ k 47V“ QT (W Q (M ~ 1)V’.’€..4?S 095/6 . »’_______,._.... Problem 3a What is the Doppler Effect? (5) Problem 3b There is a physical difference between the Doppler Effect arising from the motion of i) The source, ii) the observer. Explain " M 6V] (kc: SLR/i Y C G W 01.5695 (“QC-L LA; CK V‘e l { m8£e\ ' v a 0 (10) / X3; (W30 (14‘ ’S'WLCM V 931' for). ru (‘5 «Sbw'zzmaxzfi> (vague fl! . V 5 S _, ‘WJLN. UV ’2 ‘5 % V5 Mal/l Ckwd $0 A (>( 5‘ g DU—n/(‘SL , ‘ (AM 7 ‘ W K‘ ,4 1"“ .{q/M..£W ‘9” VSO‘WC’L «mama chm-um, M $34 A < - Kym/,5 A0 )1 (X; ( V3 fl. VSDH) 50 .. ‘ J] l/ x” a vs e vs.“ V: 49:; CW“ L‘; ~ '\—-\’3'mL - ~ w—e-f 1; ‘ V 7\ Us 5 ll) W’e)(/v’\ Owe/u; 6*; (moved Ml 1 L 9 ( 05cc [la/had “i x”; im‘wief“ +13 , : (jg/€71 £8431" M C—OLMJLO' . «4F (Ewe/Lexie \g The lad/RQ , QC 0L V6) F‘W’S lrvav- “\A 130%er \mc P_roblem 3c ' (47$) : l +(Vos.,5[ V5) , (we i‘ilVS*Vcbf2 . . . . . . . piano tuner uses a 440Hztun1ng fork to tune a strlng. After 1n1t1al adjustment, she hears 4 beats. She then tightens the string very slightly. Now she hears 6 beats. What was the frequency of the string after the initial tuning? Add W5 Mr» (10) 9/5 KEY finm‘Y/i 6.1-) 4 n a ‘Cln 1; l WEE/wk“ $9”) : ,> .. 43EH& mr ANN-“42.- ~$b wCs‘H ’ w ' k‘l’é’MAv \ F 0” i1? Ti'l‘ ~‘l’fit yup/c3 “AC/vhf (“£24 V: ft: éuxcoi { lib: an} J . [-71 a Y W _ A4 6 H 2- g, C : £134in W 0 9w y Vii/1,? UV’CLJ L’?’ I g \A W4 7L L1 2‘7”” ' _: ”~73 (Vt @CJJULJ cm, Problem 4a Chargefof LuC and 16 ,uC are located at x=0 and x=5m. Where would you locate a —5 ,uC charge, so that it experiences no force? an 3W :7 an FE? : 1‘6 Qt (is; ’,2 4/5/65 (2.95m?- Le: (10) .3- . &.74 (Jun K . *5 INC? 5b 5 Q loot ”QM" “:43 4"“ Jim“ 7!"; 3 iv: 5, lb (2’1"‘é6/L (m "’§/U\C Lac. 0 ' .16IuC (347/1 <5W 2 WM i" m .u‘éwtad ”“ * ~ Mot“ a“ ' x Mac. “0‘ 4“” imam ( 1:: lace/trad @ETL‘MEEW y, (1107., ésa‘v‘zmt’d ems 50 a» mutate L egjf Ltd A.., tb?‘~.§XM x .."/\ Fsle:*ke “”9. :5‘: .4. k6 iXlec x I “7 , (54x) .9?! x2 L: r + E; ye: b. 5’-\.£;X'V “w ‘5.‘ . I (MA )< ‘W‘Mb M kfiz .w’ ) 4 r ’12 5-)(ibxw l lb ”“2 7:” k ng‘b / :0 "“ '1 ——-’-" '3. X A‘X *” < ”72" (he-x)? , X2 (54‘) EM x: \w 3% You are given a charge q. What would you do to discover an E — field ? (5) H Chem/fie 24P€wemwx (f- $46M, HQMLLQ, “/19 a’ZA'gcdé’QL .Im a 1/1 ‘ fl /’ C fa? 66L cut/U. yam/I ”0’69. c-A m 7 (in _: / ,/ ' , _ ‘ ’ V ctJV/’ 6/74/‘93 Wax! m; (1,1ij I (,6; 6/6, a? 7L0 Ck— W x I, ‘ 10 (L/ZCWQ) 77’) {IL/3 “flu/C, (M ‘(A c Psi/1;, (m (LL: (“'3‘ 0/71, FE ; a r" C 2 {2244.2 '24“) {decJ‘g OZ .— , ‘- u fill/76h) Fifi by ‘L/ f 7 E H FE Br_oblem 40 Charges of 5 yC , 10 ,uC and-15 ,uC are located inside a sphere. a) What is the total flux of E through the surface of the sphere? (5) b) What is the E -field on the surface? Why? (5) 1% twig ax ”(WV [ct/6,0“ 5 ’"7 ‘ (,3 » w [jig (fizz/Cg 4’ WVD’QC «Q. X "16’ {if y (I: (ML Ir) Ark/.6 rliflgaci 4:“?744’5V5” r g“ 5.13/3 3 2 ‘C '17 :2 Ci) Halt ZGL: (5"?‘10 / ’59“? : 0 aQ/(fYVI/V K In OLD 66:2“ IC< =4; CH 114$ £5.)— HZA (rt/taut? <15. ( OMA/JL 1&44/(‘123’3 "Z’UQM. 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