Olbers' paradox is an apparently simple question, but its resolution suggests that the universe is finite in age. What is the question? Why is the sky dark at night?
Universe is finite
In that it hasn't existed indefinitely, the observable universe is finite. From Earth, it stretches 46 billion light years in every direction. (Our universe is 13.8 billion years old, but because the cosmos is expanding, we can observe more of it.)
Astronomers are able to look back in time to the seconds immediately following the Big Bang thanks to developing technologies. This may give the impression that we can see the entire cosmos. But a lot of factors, such as the universe's form and expansion, affect how big the cosmos is.
Because of this, scientists are unable to determine the exact size of the universe, however, we can make guesses.
To learn more about the universe finite refer here:
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<span>If two of the masses are at (0, 0) and (L, 0), by symmetry the x-coordinate of the third mass must be L/2, and then by the Pythagorean theorem its y-coordinate must be L(âš3)/2. Thus the position of the third mass is (L/2, L(âš3)/2).
Let each mass be m and C be the position of its center of mass.
Then C = (1/(3m)) (m(0, 0) + m(L, 0) + m(L/2, L(âš3)/2)).
= (1/3) (3L/2, L(âš3)/2).
= (L/2, L(âš3)/6).
That is, X_c = L/2 and Y_c = L(âš3)/6.</span>
Answer:
factors that affect the force of gravity between objects include their distance apart and their mass.
Explanation:
B. become a white dwarf star
It will swell, shed its layers, and become a white dwarf star.
I know the sun does not have enough mass to become a supernova or a black hole.
Well, you usually tell if an object is moving just by looking at it. But there is another way to know. Its by the effects of it. Say your object is the wind. You can't see it but you see the effects of it, so you know it is moving