Question
The sun radiates energy at the rate of 3.92x 10^26 W. (a) What is the change in the sun's mass in one second? (b)How much mass does the sun lose in the lifetime of your average earthling (say, 75 years)?
Answers
David
Use the relationships
1 watt = 1 Joule / second
E = mc^2
E = energy, m = mass, c = speed of light (3*10^8 m/s)
1 watt = 1 Joule / second
E = mc^2
E = energy, m = mass, c = speed of light (3*10^8 m/s)