Acoustic Power through a Window A window whose area is 2 m opens on a street where the street noise result in a sound level of

Question

Acoustic Power through a Window A window whose area is 2 m opens on a street where the street noise result in a sound level of 60 dB at window If an acoustic absorber is fitted at the window which absorbs all the acoustic power entering in window find the total energy collected by this absorber in five hours

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