What is the decibel intensity at this distance

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Reference no: EM13302968

A loudspeaker receives 8.0 W of power from an audio amplifier, and turns 3 % of that power into sound waves. Assuming this sound is spread uniformly over a hemisphere (half a sphere):

I) What is the intensity (in W/m^2) at a distance of 10.0 m from the speaker?

II) What is the decibel intensity at this distance?

Reference no: EM13302968

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