Question: The power output of a certain public address speaker is 6.00 W. Suppose it broadcasts equally in all directions. (a) Within what distance from the

The power output of a certain public address speaker is 6.00 W. Suppose it broadcasts equally in all directions.
(a) Within what distance from the speaker would the sound be painful to the ear?
(b) At what distance from the speaker would the sound be barely audible?

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