If you could convert the entire mass of the Sun (mass 2 x 1033g) into pure energy, how much energy would be produced (in ergs) ? The speed of light c = 3 x 1010cm/s.
A. 2 x 1033ergs
B. 1.8 x 1054ergs
C. 6 x 10133ergs
D. 1 x 1051ergs
E. 6 x 1043ergs
Ans: B. 1.8 x 1054ergs
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