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 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 is the power of the source doubles?
Interference of sound
Seiche
A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.
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 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 is the power of the source doubles?
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