A machine shop has 120 equally noisy machines that together produce an intensity level of 92 dB.

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A machine shop has 120 equally noisy machines that together produce an intensity level of 92 dB. If the intensity level must be reduced to 82 dB, how many machines must be turned off?

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Physics

ISBN: 978-0321976444

5th edition

Authors: James S. Walker

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Question Posted: Aug 31, 2017 11:41 AM

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A machine shop has 120 equally noisy machines that together produce an intensity level of 92 dB.

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Physics

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