Solved: A sinusoidal wave is sent along a string with a

Chapter 16, Problem 27

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A sinusoidal wave is sent along a string with a linear density of 2.0 g/m. As it travels, the kinetic energies of the mass elements along the string vary. Figure 16-36a gives the ~ ~ {J {J K "'l K "'l 0 0.1 0.2 x(m) t(ms) (a) (b) Fig. 16-36 27. rate dKldt at which kinetic energy passes through the string elements at a particular instant, plotted as a function of distance x along the string. Figure 16- 36b is similar except that it gives the rate at which kinetic energy passes through a particular mass element (at a particular location), plotted as a function of time t. For both figures, the scale on the vertical (rate) axis is set by Rs = 10 W. What is the amplitude of the wave?