Chapter 11, Problem 3P

Assume that the speed of sound in air is 340 m/s for all of these problems unless stated otherwise.

* Tell all You have a sinusoidal wave that is described by the function

$y=(0.2\text{ m) sin}\left[\frac{\pi }{2}\left(t+\frac{x}{20\text{ m/s}}\right)\right]$

(a) Say everything you can about this wave. Pay attention to the positive sign in the equation. (b) Draw a y-versus-t graph and a y-versus-x graph for the wave.