Question: You and your team are asked to determine the hearing safety parameters for a loud experiment. Since the sound will persist for only a short

You and your team are asked to determine the hearing safety parameters for a loud experiment. Since the sound will persist for only a short time, the allowed intensity level that will not result in permanent hearing damage is 135 dB. The experiment consists of a single source with a power output of 550 W that projects sound isotropically (i.e., uniformly in all directions).

(a) At what distance should you set the safety perimeter (i.e., the radius of a sphere in meters) centered at the source?

(b) Where should you set the perimeter if the power of the source doubles?

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