P34_012 - 12 The intensity of the signal at Proxima Centauri is I= P 1.0 106 W 2 = = 4.8 1029 W/m 4r2 4(4.3 ly(9.46 1015 m/ly]2

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12. The intensity of the signal at Proxima Centauri is I = P 4 πr 2 = 1 . 0 × 10 6 W 4 π [(4 . 3 ly)(9
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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