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? Express your answer in scientific notation and show your work. (5 points)

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. (5 points)

Answer 1

Part A

Explanation:

I think part A is (3.9 x 10³³) / 1 = X / (2.45 x 10⁵)

Answer 2

I have the answer to part A. just do 10,000,000* 1.55 and you should get 15,000,000.

Explanation: