Homework Help: physics

Posted by ashley -- on Wednesday, April 13, 2011 at 6:53pm.

The intensity of sound is x W/m2 at a distance of 5 m from the source. What is the intensity of the sound at a distance of 20 m from the source?

physics - bobpursley, Wednesday, April 13, 2011 at 7:13pm
four times? then that energy is spread over a 16 times area, so new energy is x/16

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