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(Solved): A certain source of sound waves radiates uniformly in all directions. At a distance of 20 m from the ...



A certain source of sound waves radiates uniformly in all directions. At a distance of 20 m from the source the intensity level is 56 dB. What is the total acoustic power output of the source (in mW)? (Note: The reference intensity lo is 1.0 x 10-12 W/m?.)


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Sound level intensity is given by: SL = 10*log (I/I0) I0 = 1.0*10^-12 W/m^2 = Human threshold i
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