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March 26, 2017

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A 60 dB sound wave strikes an eardrum whose area is 4.1×10^−5 m^2.

How much energy is absorbed by the eardrum per second?

At this rate, how long would it take your eardrum to receive a total energy of 4.6 J?

  • Physics - ,

    Convert 60 dB to sound power intensity in W/m^2.

    For help doing this, see
    http://hyperphysics.phy-astr.gsu.edu/hbase/sound/intens.html

    Then multiply that by the eardrum area fr power level absorbed.

    4.6/(sound intensity) = time for 4.6 Joules to be received.

  • Physics - ,

    I don't know it

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