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The intensity of a particular earthquake wave is measured to be 1.9MW/m2 at a distance of...

The intensity of a particular earthquake wave is measured to be 1.9MW/m2 at a distance of 49.0 km from the source. What was the intensity when it passed a point only 1.1 km from the source?
Give your answer in giga Watts per square metre, where 1GW/m2=1,000MW/m2=1,000,000,000W/m2. Assume the energy is radiated uniformly in all directions.

science   Advanced-Physics   
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Answer #1

Po un Yo T, = 1.qmw/mn_ ぺこ2 = 45x103 m LO

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