ch33-p081 - 81. (a) At r = 40 m, the intensity is P P 4(3.0...

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81. (a) At r = 40 m, the intensity is () 3 2 2 22 4(3.0 10 W) 83W m . 4) 4 rad 40m PP I dr θ −3 × == = = ππ ( ⎡⎤ π0 . 1 7 × 1 0 ⎣⎦
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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