gravity
2006-07-04 05:13:37
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answer #1
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answered by r_e_a_l_miles 4
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The Sun in responsible for nearly 100% of the Earths motion...although I'm not sure how you'd go about figuring exactly what percentage. Remember, Earth feels the gravitational force from every single object in the universe. Also, the center of the Sun is not exactly on one of the focal points of the ellipse. Rather, the planets of the solar system and the Sun rotate about a common center of mass, which I think is somewhat close to the surface or the Sun, with Jupiter causing most of the effect. As for the other focus, there's nothing there. Look into Kepler's Laws of planetary motion if you're interested. Momentum of the planets are conserved, so when a planet is closer to the Sun it travels faster, or you could say it "sweeps out" equal areas in equal time intervals, so nothing has to be there (at the focus).
Hope that explains somethings.
2006-07-04 12:14:38
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answer #2
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answered by thornzi 1
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Movement of Sun and planets (including all object of the universe) are controlled by universal laws.
There are forces acting on the Sun and plannets. These forces are there since the birth of Sun and planets.
Namely, the Gravitational force which is Universal force acting on all bodies. Gravitational force is proportional to Mass of the body and inversely proportional to distance of the bodies.
When any planet is formed by composite forces and mass it has its own velocity to go out of the mother body (say any star like our Sun) but the Gravitational pull/force of the star/sun restrict the movement of the planet. If the velocity of the planet is more that certain velocity (escape velocity) it moves out of the mother Star/Sun. If the planet's velocity is less than escape velocity it remains in the Gravitational field of the mother star/sun and it moves around the star/sun due to it's velocity and the Gravitational force. With time (a long time by our standard)it stabilises/adjusts itself in a certain round path around the Star/ Sun. This path is also changes with time as the mass of sun/star changes with time. But this change is very slow.
Hence it can be easily said that Sun doers not control the movement of the planets but the natural laws control it.
2006-07-06 02:15:35
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answer #3
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answered by Tulu 1
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the sun does not actually controls the planet. but planets revolved in the sun becuase of their own orbit, the speed of the planet revolving in the sun depend on how far the distance of the planet from the sun. example mercury it revolve much much quicker than the earth because its closer to the sun and becuase their is to much pressure and radiation coming from the sun. some people say that the gravity of the sun controls the planet but no becuase if the gravity controls the planet, the mercury would be long gone.
2006-07-05 13:55:42
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answer #4
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answered by ken 2
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Sun does not control movement of any planet/s
2006-07-05 13:07:00
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answer #5
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answered by Nanjappa 1
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sun control the movement of other planet with the help of it,s gravitational power . sun is very big in comparison to other planet so there is no effect of planets gravitational power on sun and center of mass of sun and planet system just lie on the sun that's why planet revolve arround sun
2006-07-05 07:24:47
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answer #6
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answered by vijay d 1
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Sun`s gravity, like moon is controlled be earth`s gravity.
2006-07-05 12:52:26
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answer #7
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answered by kmuralinh 3
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Sun has gravitational force, so it can control them
2006-07-05 04:45:15
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answer #8
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answered by Anonymous
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it would take me a whole page answering this question,if u want u understad this,many theories would have to be explained,why don't u type this question in a search engine?
2006-07-05 09:48:34
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answer #9
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answered by ♀guardian of angels♀ 3
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by gravity
2006-07-05 09:51:39
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answer #10
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answered by mirchi girl 3
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