A sinusoidal sound wave moves through a medium and is described by the displacement wave function
where s is in micrometres, x is in meters, and t is in seconds.
(b) Find the wavelength of this wave.
____ cm
(c) Find the speed of this wave.
____ m/s
(d) Determine the instantaneous displacement from equilibrium of the elements of the medium at the position x = 0.049 9 m at t = 2.98 ms.
____ µm
(e) Determine the maximum speed of an element’s oscillatory motion.
____ mm/s
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