Find the intensity I of the sound waves produced by four 60- W speakers as heard

Question

Find the intensity I of the sound waves produced by four 60-W speakers as heard by the driver. Assume that the driver is located 1.0 m from each of the two front speakers and 1.5 m from each of the two rear speakers. Express your answer numerically in watts per meter squared. Find the intensity I of the sound waves produced by four 60-W speakers as heard by the driver. Assume that the driver is located 1.0 m from each of the two front speakers and 1.5 m from each of the two rear speakers. Express your answer numerically in watts per meter squared.

Explanation / Answer

Use two significant figures.
Just add up the intensities from Parts A and B. 2 speakers at 1.0m = 2 * 4.8 and 2 speakers at 1.5m = 2 * 2.1. So:
I = (2 * 4.8) + (2 * 2.1)
I = 13.8 W/m2

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