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    Sound intensity inside a busy restaurant: How much energy?

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    The average sound intensity inside a busy restaurant is 3.2 x 10^-5 W/m^2. How much energy goes into each ear (area=2.1 x 10^-3 W/m^2) during a one hour meal?

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    https://brainmass.com/physics/energy/sound-intensity-inside-busy-restaurant-much-energy-111738

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    Please see attached file.

    Note that the factor of 2 in division comes for each ear. (1 hour = ...

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    The solution shows the formula to be used and then solves the problem.

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