A 48db sound wave strikes an eardrum whose area is
A 48dB sound wave strikes an eardrum whose area is 4.2×10?5m^2.
A.) How much energy is absorbed by the eardrum per second? (P= ? W)
B.) At this rate, how long would it take your eardrum to receive a total energy of 3.8J ? ( t=? years)
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