Solution,
E = mc^2
E/t = 10^40 Watts
10^40 Watts = (m/t) c^2
m/t = 10^40 /(3 x 10^8)^2
m/t = 1.11 x 10^23 kg/s
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Quasars are faint, distant sources of radio waves. (Quasar is short for "quasi-stellar source." They are...
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