A certain source of sound waves radiated uniformly i, Physics

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A certain source of sound waves radiated uniformly i

A certain source of sound waves radiated uniformly i alldirections. At a distance of 15m from the source the intensitylevel is 30dB.

A. What is the intensity of the sound 15m from the source inW/m2?

B. What is the total acoustic power output of the source inwatts?

C. How far from the source would you have to move to decreasethe intensity of the sound by one half?

D. What would the sound intensity level in dB be at this distance?

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