A window whose area is \( 2 \mathrm{~m}^{2} \) opens on a street where the street noise results ...

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A window whose area is \( 2 \mathrm{~m}^{2} \) opens on a street where the street noise results at the window an intensity level of \( 60 \mathrm{~dB} \). How much acoustic power enters the window through sound waves? Now, if a sound absorber is fitted at the window, how much energy from the street will it collect in a day?
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