Part a: the sun produces 3.9 ⋅ 10^33 ergs of radiant energy per second. how many ergs of radiant energy does the sun produce in 1.55 ⋅ 10^7 seconds? part b: which is the more reasonable measurement of the diameter of a human hair: 1.8 ⋅ 10^−2 mm or 1.8 ⋅ 10^2 mm? justify your answer.

Part A

3.9 * 10^33 * 1.55 * 10^7 
3.9 * 1.55 = 6.045
10^33 * 10^7 = 10^40
6.045 * 10^40

Part B

1.8 * 10^−2 mm, because a negative exponent makes the answer smaller

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

hello i am doing good for you that it's summer in your country or state ; )

btw in my country we just have sun and rain as (because i live in the caribbean lol)

also, thx a lot for the points : )