Physics, 06.03.2020 03:01 Billie9166

Loudspeakers can produce intense sounds with surprisingly small energy input in spite of their low efficiencies. Calculate the power input needed (in W) to produce a 84.6 dB sound intensity level for a 13.0 cm diameter speaker that has an efficiency of 2.81%. (This value is the sound intensity level right at the speaker.)

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Loudspeakers can produce intense sounds with surprisingly small energy input in spite of their low e...