SOLUTION: A company with loud machinery needs to cut its sound intensity to 37% of its original level. By how many decibels would the loudness be reduced? Use the formula L = 10log (I/Io)

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Question 767430: A company with loud machinery needs to cut its sound intensity to 37% of its original level. By how many decibels would the loudness be reduced? Use the formula L = 10log (I/Io)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A company with loud machinery needs to cut its sound intensity to 37% of its original level. By how many decibels would the loudness be reduced? Use the formula L = 10log (I/Io)
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L = 10log(0.37I/Io) = 10[log0.37)+ log(I/Io)]
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10[-0.4318 + log(I/Io)]
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= -4.318 + 10log(I/Io)
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Cheers,
Stan H.
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