All Questions
Tagged with newtonian-gravity gravity
44
questions with no upvoted or accepted answers
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The (Newton-Laplace-Ivory-Arnold) shell theorem in general relativity
It is well-known that Birkhoff's theorem and the classification of LTB spacetimes proves one version of Newton's shell theorem in the context of GR. Another statement in Newtonian gravity, often ...
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Would a very long massive rod exhibit a large deviation from Newtonian gravity (specifically a deficit angle rather than 1/r force)?
In General Relativity the metric corresponding to an infinitely long massive rod is flat but with a deficit angle. It exhibits a very large deviation from Newtonian gravity in all regions of space in ...
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Do all gravitationally collapsing objects virialize?
For interactions via a Newtonian gravitational potential, the virial theorem states that
$$ 2 \langle T \rangle = -\langle V \rangle $$
i.e. the time-averaged total kinetic energy and total potential ...
- 486
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What would gravity be like on the surface of a right rectangular prism?
Let's assume there is a right rectangular prism floating about in space, what would the gravity be like across its 6 flat surfaces?
Let's assume that this right rectangular prism has a constant ...
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Can a Set of "Maxwell's Equations" for Newtonian Gravitation be Derived from Newton's Force + Special Relativity?
When I learned about electromagnetism in my first year of undergraduate school, Maxwell's equations were derived roughly in the following way (see also here or in [1]): Gauss's law for a static ...
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What would the acceleration and velocity due to gravity be when an object is dropped from a large distance from a theoretical flat earth?
Say the acceleration and velocity are described using acceleration time and velocity time graphs, I have no idea whether these graphs would look the same or different to the same graphs but made for ...
- 21
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Is the Newtonian gravitational potential $-\frac{GMm}{R}$ just an approximation?
Is $-\frac{GMm}{R}$ just an approximation? I believe that it is since we assume that one of the mass is at rest when deriving it.
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Which location on Earth has the strongest deviation from the vertical due to gravity?
So, I've recently learned about the Schiehallion experiment, performed in 1774, where scientists detected the deviation from the vertical of a plumb due to the gravitational attraction of a single ...
- 2,987
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Paradox/inconsistency when embedding QFT in Newtonian gravity
This is not a question per se -- I am trying to recall an example from a lecture long ago about the inconsistencies that arise when you try to use QFT with Newtonian gravity.
It involves an electron-...
- 201
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Is there an effect analogous to the slowing down of massive particles in Newtonian cosmology?
We know that massive particles slow down by $a^{-1}$ in the Robertson-Walker metric , where $a$ is the scaling factor.
If the particle velocity is non-relativistic, can we understand this slowing ...
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847
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Geometric Explanation for the Equality of Active and Passive Gravitational Masses
In Newtonian gravity, as such, there are three masses: the active gravitational mass (the mass that generates the gravitational field), the passive gravitational mass (the mass that responds to the ...
user87745
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centrifugal acceleration and circular velocity in curved space time
I'm studying a problem on rotation systems in general relativity. I would like to know how do these two well know newtonian formulas:
$$a_{c}(r)=\dfrac{V_{c}^{2}(r)}{r},\\-\:\dfrac{\partial\Phi(r)}{\...
2
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214
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Maxwell-like equations from Newton's law of universal gravitation and special relativity
It is known that Maxwell's equations can be derived from Coulomb's Law and Special Relativity. Since Coulomb's Law is so similar to Newton's law of universal gravitation, is it also possible to derive ...
- 990
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Gravity's potential energy is it measurable?
In vacuum all object fall with no resistance and the object keeps on accelerating without stopping at a particular velocity. If i manage to make the fall to take place for 20 sec, then will the object ...
- 27
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Where are the L3, L4, and L5 points of a hyperbolic orbit?
Do the L3, L4, L5 points exist in hyperbolic orbits? If yes, then where do they lie?
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