Statement of a problem № 42409


A sinusoidal sound wave is described by the displacement wave function s(x, t) = (2.00 μm) cos[(15.7 m-1)x - (858 s-1)t] (a) Find the amplitude, wavelength, and speed of this wave. (b) Determine the instantaneous displacement from equilibrium of the elements of air at the position x = 0.050 0 m at t = 3.00 ms. (c) Determine the maximum speed of the element’s oscillatory motion.

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