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Why does the sun and each body revolve about their common center of mass?
Wiki User
∙ 8y ago
There is a gravitational force between the Sun and the planet. That causes them to accelerate towards each other, by an amount that is described by Newton's second law.
The law says force = mass x acceleration, in other words acceleration = force / mass.
The mass of the Sun much more than any of the planets so the Sun moves very little, while the planet travels in an elliptical orbit. But strictly speaking both the Sun and the planet follow orbits. If both bodies were of equal mass, they would orbit symmetrically about a centre point which is the centre of mass, as happens with some double stars. If one object is more massive than the other, the common point is closet to the more massive object.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoThat follows from conservation of momentum. The center of mass of the entire Solar System must remain static (or move at a constant velocity), unless some external force acts on it. You can also derive it, equivalently, from a combination of Newton's Second Law and Newton's Third Law. For example, the Sun attracts Jupiter with a certain force; Jupiter attracts the Sun with the same force. (Conservation of Momentum can be derived from Newton's Third Law, and vice versa.)
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Why does the earth and moonremains in orbit?
Because the Earth and the moon are bound by the laws of gravity to revolve around each others common center of gravity.
Does B Sirius cause Sirius A to wobble?
Sure - the two attract each other. In the case of a double star - as Sirius A and Sirius B - both revolve around their common center of mass.
Where does the earth and moon exert forces the same size?
Not sure what you are looking for here. Earth and moon revolve around each others common center of gravity. This center is also referred to as the barycenter. Look this up on the web and you'll find some very interesting things about the unique earth/moon relationship.
Does Alpha Centauri and Proxima Centauri revolve around each other?
No, Proxima Centauri and Alpha Centauri do not revolve around each other.
Why don't nucleus revolve around electron?
The nucleus and the electron both revolve around a common center of charge. The only atom with equal charge in both places is hydrogen. Every atom heavier than hydrogen has more charge in the nucleus than there is on an electron. By the time you get to uranium, there is more than 90 times as much charge in the nucleus as there is on an electron, so the common center of charge is many times farther from each electron than it is from the nucleus. Also, each nuclear particle ... each proton and neutron ... is almost 2000 times more massive than an electron, and the same argument applies to the center of mass in the case of orbits governed by gravitational force, such as the solar system. But in the atom, the electrical forces completely dominate over the gravitational forces (by something like 1040.)
Does the moon revolve around the earth each year?
Yes
The plantes revolve around the sun once during each?
year
How many time does the earth revolve around the each year?
One.
What do different types of bats have in common with each other?
they all have a body.
How does the sun and earth move?
They move because they are both gravitationally bound. The Sun is bound to the Milky Way Galaxy and the Earth is bound to the Sun. Another way to put it is that they revolve around each others common center of gravity. What this mean is that, in the case of the Earth, it is falling toward the Sun's center of gravity but for every foot the Earth moves toward the Sun's center, the Sun moves a foot out of the way. The Sun is moving because it is falling toward the center of our galaxy. Again, it would make it to the center of our galaxy but for one reason. Our galaxy is moving toward the center of the Virgo Super Cluster.
How many times does earth revolve around sun each year?
One.
Type of symmetry in which body parts are mirror images of each other?
Bilateral Symmetry
