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exam1_sample-ans - 11113111” Physics 2306 Samples Spring...

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Unformatted text preview: 11113111” Physics 2306 Samples Spring 2 006 1. A transverse wave traveling on a string is described by the expression 1 cm sin (1.3 x /m — 10 t / s ), Where m=meters, cm=centimeters, 1.33;. 1o111Wtfl 1331 T ”WWW..- t 1., 1’" 11% h "121.. £111 a :31: 1 £1 £1 5 fig: 11 1 ET?” ~31“ L1 ,. / W; (X111) = 3211111 s=seconds . What is the frequency, f, of this wave? A 20 Hz F 1.6 Hz B 1.3 Hz (1 1 59 Hz C 10 Hz H 20 Hz D 628 Hz I 0.314 Hz WM ‘ E 1311; """""""""""""""""""""""""""""" J 314 Hz 0.159 s F G 7.69 s H 76.93 1:106283 J15 F 3.2 mm G 0.13 m H 113,311; ..................... I 4.83 m J 1 8.17m W M — , 11 1 13%11 $5 ,mmvr a m 7 ”E 1:; £91 1 1% J 1.... .1 1. 131- .~ 1111 We f1? :1. 1:1 11.11.1111» 1131 . Mmmm WWW “1:1 {Z171WJ ”.11 ,m M; 11W .1» gm m as! 41. For the wave in problem 1, what is the direction the wave is traveling? — x direction - z direction +x direction it's not moving D + y direction cannot be determined - y direction. E + z direction down 5. For the'wave in problem 1, what is the transverse acceleration of the wave at time t=0 and position x=1m? {X 0.26 m/s2 F 0.1 m/s2 B1— 10 111/82 c 9 87 m/s C 100 m/S2 ———————— H 98 :7 31/32 51 ‘ 3'14 111/52 M I 0. 0987m/s E I 3.14 111/52 fi . 1 1 g . “$111111" “1“ 1 “1“». 1311 11% i K??? m $33“: :E “1 ~22 111 ¥ :1 #111 .1 1.11» 1 1 1-1:: 11* - ”i“ ...
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