If the Sun were replaced by a 1 solar mass black hole, then the earth...?
Question:
a) continue to orbit the black hole in precisely its present orbit
b) move into an elliptical orbit passing close to the black hold, with its farthest distance from the black hole equal to 1 AU
c) spiral quickly into the black hole
d) head off into interstellar space along a straight line at a tangent to its original orbit around the Sun
my answer is A because black hole needs at least 3 solar mass to be a black hole, but i'm not sure...
Answer:
Must be A and the earth cools down very rapidly.
(The question says IF )
Th
I concur with A because mass is mass and gravity is gravity. The way the question is posed preassumes that its possible to have a 1 solar mass black hole, actually I've heard speculation of even smaller ones.
It's A. Whether the mass has collapsed into the black hole doesn't affect the gravity of the objects. The only funky thing about a black hole is its effects within the event horizon (Schwartzchild radius).
Because gravity as we know is based upon the mass of an object and the distance one is from it. The answer to the question as asked is A.
However, other issues may be present
The old professor agrees with "A". It doesn't matter if it is a one solar mass Big Mac or order of fries. The gravity of that mass would remain the same and the center of gravity would likewise stay in the same position. The problem here is that we are hopefully outside its event horizon...which I am sure we would be.
A.
Although it would be real cold on Earth and also very dark. Folks on Mercury would definately be wacked out of their very stretched out minds..Imagine time travel in your own solar system..IF you survive.
your answer is right but for the wrong reason. this was explained in other answers so i won't repeat it.
the remains of a star need to be three solar masses in order to collapse into a black hole, but there could be solar mass sized black holes existing from the time of the big bang.
anyways that is all rather irrelevant for this question since it doesn't ask what would happen if the sun collapsed into a black hole (which would create a different end result).
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