A loudspeaker at a rock concert generates 10-2 wm2 at 220 m, Physics

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A loudspeaker at a rock concert generates 10-2 wm2 at 220 m

A loudspeaker at a rock concert generates 10-2 W/m2 at 22.0 m at a frequency of 1.0 kHz. Assume that the speaker spreads its energy uniformly in three dimensions.

(a) What is the total acoustic power output of the speaker?

in W

(b) At what distance will the intensity be at the pain threshold of 1.0 W/m2?

in m

in W/m2

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Physics: A loudspeaker at a rock concert generates 10-2 wm2 at 220 m

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