College Physics 2056
posted by Tony .
An electromagnetic wave strikes a 3.00cm2 section of wall perpendicularly. The rms value of the wave's magnetic field is determined to be 6.00 104 T. How long does it take for the wave to deliver 1000 J of energy to the wall?

College Physics 2056 
Tony
Figured it out.
E/SA=t
1000/[(2.38e14*B^2)*(Area)]= t
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