Intensity of a particular earth quake wave

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Reference no: EM13654141

The intensity of a particular earth quake wave is measured to be9.0*10⁶ J/m²·s at adistance of 49 km from the source.

a) What was the intensity when it passed a point only4.0 km from the source?
b) What was the rate energy passed through an area of 9.0 m² at 4.0km?

Reference no: EM13654141

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