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A ball of radius R=100cm is located in t...

A ball of radius `R=100cm` is located in the way of propagation of a plane sound wave. The sonic wavelength is `lambda=2cm`, the frequency is `v=100pi Hz`, the pressure oscillation amplitude in air is `(Deltap)_(m)=4Pa`. Find the mean energy flow rate (in watt), averaged over an oscillation period, reaching the surface of the ball. Take density of air `1 kg//m^(3)`.

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Energy flow rate reading surface of the ball `=piR^(2)((Deltap_(m))^(2))/(2rhovlambda)`
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