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# The noise level coming from a pig pen with 209 pigs is 71.

The noise level coming from a pig pen with
209 pigs is 71.6 dB.
Assuming each of the remaining pigs squeal
at their original level after 77 of their compan-
ions have been removed, what is the decibel
level of the remaining pigs?

What is the corresponding sound level in units
of W/m2?

Dear Student, Please check the attached solutions file of... View the full answer

Let K be the intensity of sound of one pig. Then intensity of 209 pigs =
209K
Now
71.6 = 10 log(209K)
=&gt; log(209K) = 7.16
=&gt; 209K = 10^7.16 = 1.44x10^7
=&gt; K = 69159.79
Now remaing pigs =...

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