At a recent rock concert, a dB meter registered 128 dB when placed 1.10 m in front of a loudspeaker on the stage.?
(a) What was the power output of the speaker, assuming a hemispherical radiation of the sound and neglecting absorption in the air?
Incorrect: Your answer is incorrect.
W
(b) How far away would the intensity level be a somewhat reasonable 85 dB?
m
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- Anonymous8 months ago
Post your work so we can check it.
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