The equation of a plane sound wave, um, has the form Xi = 60cos 1800 t-5,3z (time / is measured in seconds, the distance z - in meters). Find: The ratio of the amplitude of the displacement of the particles of the medium to the wavelength; the oscillation amplitude of the particle velocity of the medium and its relation to the speed of propagation of the wave.
Detailed solution with the formulas and the laws used in the decision, the withdrawal of the calculation formula and the response.
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