All Questions
7
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Is there a deeper relationship between symmetry and gravitational potential comparing Newton's and Einstein's gravity?
In this question, see Why is general relativity in (2+1) dimensions different from cylindrical systems in (3+1) dimensional GR?, it is mentioned
"The gravitational potential Φ of an infinite rod ...
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1
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555
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Gravitational potential inside and outside a spherical shell
Let $\Phi$ denote gravitational potential. This is an example from a book (Classical dynamics, Thornton-Marion). We assume a homogeneous spherical shell. The writer says: We integrate over $d\phi$ in ...
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1
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84
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Confusion about interior gravitational potential/force
So I've followed and understood the proof that inside a thin hollow shell the gravitational potential is constant and hence the force is zero, but when applying it to a problem (namely "how does the ...
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1
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429
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Gravitational potential due to uniform ring [closed]
So i want to find the Gravitational potential caused by a uniform ring with radius $R$ at any point in space. I know the solution of the field should not have any dependence on the azimuthial angle ...
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Does gravity get stronger when you climb a mountain?
As stated in the question title, what happens to the strength of the gravitational field (or equivalently, your weight) as you climb a hill or mountain? Would a weighing scale show that you were ...
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2
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Gravitational potential at the center of a uniform sphere
Feynman in second Messenger Lecture said that potential at the center of ball with small radius $a$ is equal to average potential on surface of ball minus $G$ times mass inside the ball divided by $2a$...
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Does a spherical potential mean spherical mass distribution? [closed]
I came across this question is Binney & Tremaine's galactic dynamics. I'm pretty sure that the answer is no, but struggling to come up with an example.