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January 31, 2015

Homework Help: physics

Posted by Sandhya on Sunday, November 30, 2008 at 9:18am.

The intensity of an earthquake wave is measured to be 6 x10 ^6 J ms at a distance of 50 km from its source. Calculate the intensity when it passed the point 4 km to source ? What is the rate energy passed through an area of 6 ms^2 at 4 kW?

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