Question

The sun produces 3.9 ⋅ 1033 ergs of radiant energy per second. How many ergs of radiant energy does the sun produce in 3.25 ⋅ 103 seconds?

Answer 1

you have the rate in ergs/second, as well as the # of seconds. so looking at the units, you can just multiply (3.9 ⋅ 10^33 ergs) * (3.25 ⋅ 10^3 seconds)