Part A: The sun produces 3.9 ⋅ 1033 ergs of radiant energy per second. How many ergs of radiant energy does the sun produce in 1.55 ⋅ 107 seconds?

Part B: Which is the more reasonable measurement of the distance between the tracks on a CD:

1.6 ⋅ 10–3 mm or 1.6 ⋅ 103 mm? Justify your answer.

Question

Part A: The sun produces 3.9 ⋅ 1033 ergs of radiant energy per second. How many ergs of radiant energy does the sun produce in 1.55 ⋅ 107 seconds?

Part B: Which is the more reasonable measurement of the distance between the tracks on a CD:

1.6 ⋅ 10–3 mm or 1.6 ⋅ 103 mm? Justify your answer.

richgall____ · Answer

@ksanka so do I multiply 3.9 x 1033?