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July 7, 2015

Homework Help: physics

Posted by sarah on Monday, March 26, 2012 at 11:32pm.

The electromagnetic wave that delivers a cellular phone call to a car has a magnetic field with an rms value of 1.90 10-10 T. The wave passes perpendicularly through an open window, the area of which is 0.20 m2. How much energy does this wave carry through the window during a 35-s phone call?

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