May 18 - General Physics III Homework Assignments Cory...

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General Physics III Homework Assignments Cory poynter 18-1, 7, 11, 14, 18, 21 and Chapter 34 Question 12 and Problem 11 1) a) = y1 3cos4x - . 1 6t = ( y2 sin 5x - ) 2t x = 1cm t = 1s = + y y1 y2 = 3cos4x - . + ( 1 6t 4sin 5x - ) 2t = - . + ( - ) 3cos4 x 1 1 6 x 1 4sin 5 x 1 2 x 1 =- . + . 2 212 5645 = -1.647cm b) x = 1cm t =.5s = - . . + ( - . ) 3cos4 x 1 1 6 x 5 4sin 5 x 1 2 x 5 =- . +(- . ) 2 995 3 027 = -6.022cm c) x = .5cm t = 0 = . 3cos4 x 5 - . + ( . - ) 1 6 x 0 4sin 5 x 5 2 x 0 =- . + . 1 248 2 394 = 1.146cm 7) Velocity of sound (v) = 343m/s Frequency (f) = 200Hz Distance between (d) = 4m a) + L2 16 - =( + ) L 2n 1 343400 b) x = (2n + 1) x .875 c) a = + L2 16 - L d) + = + + L2 16 L2 a2 2aL e) 0 = + a2 2aL - 16 f) a = 2 g) + a2 2aL - = 16 0 h) = - + . + . L 16 2n 12 825222n 1 825 i) n = 0 j) = - ( )+ . ( )+ (. ) L 16 2 0 12 825222 0 1 825 k) = . 9 28m l) = n 1 m) = - ( )+ . ( )+ (. ) L 16 2 1 12 825222 1 1 825 n) = . 1 99m o) 11) = . (. ) y 1 5cos200tsin 4x p) = y 2Asinkxcosωt q) Wave lengt h = λ 2πk
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May 18 - General Physics III Homework Assignments Cory...

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