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College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000

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BuyFindarrow_forward

College Physics

1st Edition
Paul Peter Urone + 1 other
ISBN: 9781938168000
Textbook Problem

Ten cars in a circle at a boom box competition produce a 120−dB sound intensity level at the center of me circle. What is the average sound intensity level produced here by each stereo, assuming interference effects can be neglected?

To determine

Intensity of each car.

Explanation

Given info:

Total intensity of ten cars is 120dB

Formula used:

One decibel is defined as the base 10 logarithm of the intensity of soundwave compared to the baseline human hearing level.

  d=10logII0,I0=1012Wm2

Calculation:

Substituting the given values, we get

  120=10logI 10 12<

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