The power (energy per unit time) radiated by a blackbody per unit area of surface expressed in
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The power (energy per unit time) radiated by a blackbody per unit area of surface expressed in units of W m−2 is given by P = σ T4 with σ = 5.67 × 10−8 W m−2 K−4. The radius of the sun is 7.00 × 105 km and the surface temperature is 5800. K. Calculate the total energy radiated per second by the sun. Assume ideal blackbody behavior.
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