A transverse wave on a 12 m string has a displacement from equilibrium described by y(x,t)=2cos(125.6x−1884t) where y is measured in millimeters, x in meters, and t in seconds. The point x=0 is in the middle of the string, and positive x is to the right. How far (in millimeters) from equilibrium is the string one fourth of the way from the right end at a time of 2 seconds?

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter13: Mechanical Waves
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A transverse wave on a 12 m string has a displacement from equilibrium described by y(x,t)=2cos(125.6x−1884t) where y is measured in millimeters, x in meters, and t in seconds. The point x=0 is in the middle of the string, and positive x is to the right. How far (in millimeters) from equilibrium is the string one fourth of the way from the right end at a time of 2 seconds?

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