A star similar to our sun radiates energy at the prodigious rate of4.6 1026 W.
(a) At what rate does this star convert mass into energy?
kg/s
(b) Assuming that the star has radiated at this same rate for itsentire lifetime of 4.8 109 y, and that its current mass is2.5 1030 kg, what percentage of its originalmass has been converted to energy?
%