PE = mgh
137200 = mg x 200
686 = mg
686/9.81 = m
m = 69.9286.... (idk how many decimals / sig. figs. you need)
Answer:
The last is proven
Explanation:
The moon landing is real and if you watch a video with Adam ruins everything then he debunks the theory
Apparent magnitude means how bright a star APPEARS to us on Earth. It can be affected by ...
... how bright the star really is
... how far the star is from us
... how much gas and dust is between us
... how much of the star's total output is in visible light
The planets revolving around the sun, The moon revolving around the Earth.
