A $40 d B$ sound wave strikes an eardrum whose area is $5.0 \times 10^{- 5} m^{2}$ .
How much energy is absorbed by the eardrum per second?

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A $40 d B$ sound wave strikes an eardrum whose area is $5.0 \times 10^{- 5} m^{2}$ .
How much energy is absorbed by the eardrum per second?