478_Physics ProblemsTechnical Physics

# 478_Physics ProblemsTechnical Physics - 480 P16.19 Wave...

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480 Wave Motion P16.19 (a) f v == = λ 100 200 0500 . . . ms m Hz bg ωπ π = 22 0 5 0 0 f . s 3.14 rad s (b) k = 314 . . m rad m (c) yA k x t =− + sin ωφ becomes yx t + 0100 0 .s i n . . mm s af (d) For x = 0 the wave function requires yt i n . (e) 471 i n . . m r a d s (f) v y t xt y = .. c o s m s b g The cosine varies between +1 and –1, so v y 0314 . m s P16.20 (a) at x = m , i n . . r a d a f (b) t A k x t = 0 100 0 500 20 0 i n . i n m a f a f ω so = 20 0 . r ads and f 2 318 H z Section 16.3 The Speed of Waves on Strings P16.21 The down and back distance is 400 400 800 ... m += . The speed is then v d t T = = total m s 4800 0800 40 0 . . . µ Now, × 0200 500 10 2 . . kg 4.00 m kg m So Tv × = 2 . kg m m s N ej P16.22 The mass per unit length is:
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## This note was uploaded on 12/14/2011 for the course PHY 203 taught by Professor Staff during the Fall '11 term at Indiana State University .

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