The Sun radiates away energy at the rate of 3.9*10^24 Watts. At what rate it it losing mass due to this radiation?

E = Δmc^2
E = mc^2 - m0c^2

Where m0 rep. rest mass.

For this one, I am unsure as to how I would go about with solving it.
I know that a Watt can equal 1 Joule / second...

Question

The Sun radiates away energy at the rate of 3.9*10^24 Watts. At what rate it it losing mass due to this radiation?

E = Δmc^2
E = mc^2 - m0c^2

Where m0 rep. rest mass.

For this one, I am unsure as to how I would go about with solving it.
I know that a Watt can equal 1 Joule / second...

anonymous · Answer

Just as Energy = mass * c^2,
Power = mass consumption rate * c^2
(Just divided either side with time)

Therefore, mass consumption rate = Power / C^2 = 3.9 * 10^24 / (3*10^8)^2
= 43.33*10^6 kg/s