A loudspeaker at a rock concert generates 102 W/m2 at 20 m at a frequency of 1
Question:
A loudspeaker at a rock concert generates 102 W/m2 at 20 m at a frequency of 1 kHz. Assume that the speaker spreads its energy uniformly in all directions.
(a) What is the intensity level at 20 m?
(b) What is the total acoustic power output of the speaker?
(c) At what distance will the intensity level be at the pain threshold of 120 dB?
(d) What is the intensity level at 30 m?
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Fundamentals of Ethics for Scientists and Engineers
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