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23 June, 12:52

Assume that the amplifiers on the stage operate at a combined power of 5,000 Watts, and that 80% of this is converted to sound. Which of the following best approximates the fraction of this power incident upon each eardrum onstage?

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  1. 23 June, 13:05
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    0.04

    Explanation:

    Fraction of power converted to sound = 80% = 0.08

    Fraction incident upon each eardrum onstage = 0.08/2 = 0.04
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