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The surface of the Sun has a temperature of about 5918 K. Find the total energy radiated by the Sun each day. The Stephan-Boltzmann constant is 5.6696 x 10^-8 W/m2/K4, e = 1, and the radius of the Sun is 6.96 x 10^8 m. Answer in units of J
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Added Sat, 04 Jul '15
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Time, t = 1 day
= 86400 s

Energy radiated, E = ? e A t T^4
= ? e ( 4 ? R^2 ) t T^4
= 5.6696 * 10^-8 * 1 * 4 * ? * [6.96 x 10^8]^2 * 86400 * 5756^4
= 3.28 x 10^31 J

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