The Sun radiates energy at the prodigious rate of 3.90 1026 W. (a) At what rate,
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(a) At what rate, in kilograms per second, does the Sun convert mass into energy?
(b) Assuming that the Sun has radiated at this same rate for its entire lifetime of 4.50 × 109 y, and that the current mass of the Sun is 2.00 × 1030 kg, what percentage of its original mass has been converted to energy?
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Divide the power output of the Sun by the speed of li...View the full answer
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