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A (Point-Source) Loudspeaker Produces an Average Intensity of 56 $2$ At Two Meters Away

Question 10

Multiple Choice

A (point-source) loudspeaker produces an average intensity of 56.8 W/m $2$ at two meters away. The output power of the loudspeaker is

A) 2900 W.
B) 1200 W.
C) 710 W.
D) 580 W.

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