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0 votes
3 answers
132 views

Why wouldn't a planet's orbit precess in a 2 body Newtonian universe?

If the whole universe was?were just the Sun and Mercury, in a Newtonian universe, what would its orbit look like? A circle or an ellipse? And why? I know the Sun is so much more massive, than Mercury, ...
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3 votes
1 answer
124 views

Virial ratio behaviour

I think I didn't understand something about virial theorem for an $N$-body system, for instance the behaviour of virial ratio $T/\Omega$, with $T$ kinetic energy and $\Omega$ gravitational potential ...
Zebx's user avatar
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2 votes
0 answers
821 views

Gravity on a right rectangular prism? [closed]

Let's assume there is a right rectangular prism floating about in space, what would the gravity be like across its 6 flat surfaces? What gravity would you experience if you set foot on the rectangular ...
tempestwing0101's user avatar
0 votes
1 answer
138 views

Astronomy Olympiad Gravitation Qn

Question: Approximately once in 5 years people on Earth can observe bright comets whose nuclei have radius about 1km. The orbits of such comets are close to parabolic. Assuming that these nuclei are ...
Happytreat's user avatar