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April 23, 2014

Homework Help: physics

Posted by Anonymous on Saturday, December 3, 2011 at 1:59pm.

A rocket in a fireworks display explodes high in the air. The sound spreads out uniformly in all directions. The intensity of the sound is 1.90 10-6 W/m2 at a distance of 120 m from the explosion. Find the distance from the source at which the intensity is 0.80 10−6 W/m2.

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