Question

Can someone help me please???
Brainlyest if you can help me lol.

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 2.45 • 105 seconds? (5 points)

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

7.4 • 10–4 mm or 7.4 • 104 mm? Justify your answer. (5 points)

Answer 1

things answer:

ph.come that with me sike here the things

Step-by-step explanation:

part A

we know how much erg of radiant energy the sun produces for one second so to find out how much it produces for 2.45 ⋅ 10^5 seconds we only should multiply these seconds to the erg of radiant energy it produces for one second

and we get 9.555*10^38erg of radiant energy

Part B:

0.0074mm knowing that blood cell is very small to be seen normally without a microscope.

and 7400mm is a measure that is quite big for a blood cell. So it remains that 7.4*10^-3 is the right one.