A microwave oven generates a sound level of 373 db when, Ask an Expert

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A microwave oven generates a sound level of 37.3 dB when consuming 1.6 kW of power. Estimate the fraction of this power that is converted into the energy of sound waves. Assume the dimensions of the oven are 51.4 cm by 41.2 cm by 40.5 cm and the sound level is uniform over the outer surface.

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