A 1.5D-m string of weight 1.25 N is tied to the ceiling at its upper end, and

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A 1.5D-m string of weight 1.25 N is tied to the ceiling at its upper end, and the lower end supports a weight W. When you pluck the string slightly, the waves traveling up the string obey the equation y(x, t) = (8.50mm) cos (l72m-1 x - 2730 s-1 t)
(a) How much time does it take a pulse to travel the full length of the string?
(b) What is the weight W?
(c) How many wave lengths are on the string at any instant of time?
(d) What is the equation for waves traveling down the string?
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Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

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