A weather emergency siren is mounted on a tower, 141 m above the ground. Safety regulations prohibit the siren's sound intensity level from exceeding 121 dB for workers standing on the ground directly beneath the siren. Assuming that the sound is uniformly cmitted, what is the siren's maximum permitted power output?
A weather emergency siren is mounted on a tower, 141 m above the ground. Safety regulations prohibit the siren's sound intensity level from exceeding 121 dB for workers standing on the ground directly beneath the siren. Assuming that the sound is uniformly cmitted, what is the siren's maximum permitted power output?
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