How far must one stand from a 5-mW point sound source if the intensity at that location is at the hearing threshold? Assume the sound waves travel to the listener without being disturbed.
A)500 m
B)1 km
C)2 km
D)4 km
E)20 km

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The Answer of How far must one stand from a 5-mW point sound source if the intensity at that location is at the hearing threshold? Assume the sound waves travel to the listener without being disturbed.
A)500 m
B)1 km
C)2 km
D)4 km
E)20 km

How Far Must One Stand from a 5-MW Point Sound