A sound wave in air has a pressure amplitude equal to 4.04 ✕ 10-3 Pa. Calculate the displacement amplitude of the wave at a frequency of 9.4 kHz. (Note: Use the following values, as needed. The equilibrium density of air is ρ = 1.20 kg/m3; the speed of sound in air is v = 343 m/s. Pressure variations ΔP are measured relative to atmospheric pressure, 1.013 105 Pa.)
Po = ρvAω
Where, Po = pressure amplitude, ρ = density, v = velocity, A =
wave amplitude, ω = angular frequency = 2f
4.04 x 10-3 = 1.20*343*A*2*9400
A = 1.66187 x 10-10 m
A sound wave in air has a pressure amplitude equal to 4.04 ✕ 10-3 Pa. Calculate...
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