Homework Help: Physics

Posted by Jake on Thursday, December 2, 2010 at 10:07pm.

The intensity of an earthquake wave passing through the Earth is measured to be 2.5×106 J/m^2 at a distance of 48 km from the source.

What was its intensity when it passed a point only 2.0 km from the source?

At what rate did energy pass through an area of 3.0 m^2 at 2.0 km?

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