The sun radiates about 4.0E26 J/s.
a) How much mass is released as radiation each second?
b) If the mass of the sun is 2.0E30 kg, how long can the sun survive if the energy release continues at its present rate?
Not sure, but I think I'm supposed to use
The Attempt at a Solution
Δm = ΔE/c2
Δm = 4.0E26/c2 = 4.44E9 kg/s
2.0E30 kg x (1 s / 4.44E9 kg) =
4.5E20 seconds or
Is this correct?