Question: A siren creates sound with a level B at a distance d from the speaker. The siren is powered by a battery that delivers a

A siren creates sound with a level B at a distance d from the speaker. The siren is powered by a battery that delivers a total energy E. Let e represent the efficiency of the siren. (That is, e is equal to the output sound energy divided by the supplied energy). Determine the total time the siren can sound.

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