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The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
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The law of reflection states that the angle of reflection is equal to the angle of
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A 420N force act on a 400N object, and the force is from the north.
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