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16.4 Exercise 7

Avg difficulty 2.5

A string of length 5 m and a mass of 90 g is held under a tension of 100 N. A wave travels down the string that is modeled as y(x,t)=0.01msin(15.7m−1x−1170.12s−1t).y \left(x , t\right) = 0.01 \text{m} \text{sin} \left(15.7 \text{m}^{−1} x - 1170.12 \text{s}^{−1} t\right) . What is the power over one wavelength?

OpenStax University Physics Volume 1, 16.4 Energy and Power of a Wave, exercise 7

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Adapted from University Physics Volume 1 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 1. Imported at revision db44eb9.