Can the earth continue to rotate after it has been split in the middle?

Depending on how you cut the knife, if you cut the direction of the weft, it will still rotate and revolution, and I will only discuss the situation that is clear and valuable to discuss: the direction of the meridian is cut, and the direction of the knife edge is the sunrise line and sunset line on the earth.

See what you cut it with.

1.Cut with a knife with a thickness of 2 mm, under the effect of gravity, it can still continue to rotate as a system.

2.If you cut it with a knife with a thickness of 1000 kilometers, and do not let them coincide, the two hemispheres will automatically collapse into 2 binary stars under the action of gravity, revolve around each other, and rotate, and the rotation period will change to the original 1 2 (1 3), and this binary star system will still revolve around the Sun with the Earth's orbital period and orbit.

3.If you cut it with a knife thick enough and don't make them coincide, the two hemispheres will move one away from the Sun and run towards outer space, and the other will approach the Sun, and neither hemisphere will rotate normally, one will throw the inner spiral trajectory towards the Sun, and the other will be the outer spiral trajectory away from the Sun, and both hemispheres will collapse into two balls under their own gravitational pull, and the rotation period will become the original 1 2 (1 3).

4.If the landlord jumps to the large mouth that is hundreds of meters wide, first of all, the magma and radiation in the center of the earth cannot hurt the landlord, and the middle of the mouth is vacuum, there is no air, and the landlord will vibrate in this abyss due to gravity, and the amplitude is the diameter of the earth. If there is no other substance in the middle of the mouth but there is air, the landlord will do a damping motion back, that is, a simple vibration with a smaller and smaller amplitude, and finally stop moving in the center of the earth.

If they are not far apart, they will theoretically be immediately drawn together by gravity, and only after being separated by an external force can they reach a stable state, with the result that the two parts rotate around their center of mass, and the center of mass revolves around the sun.

Yes, even if they are separated, the two hemispheres will still rotate and revolution together.

Summary. Dear, I'm glad to answer your <>

The earth will rotate, the rotation of the earth produces the change of day and night, the rotation of the earth produces the four seasons of the year, the moon revolves around the earth, the earth revolves around the sun, this belongs to the revolution; The moon, the earth, the sun and other planets are all rotating around an imaginary axis, which is a rotation. <>

Does the Earth Turn?

Dear, I'm glad to answer your <>

The earth will rotate, the rotation of the earth produces the change of day and night, the rotation of the earth produces the four seasons of the year, the moon revolves around the earth, the earth revolves around the sun, this belongs to the revolution; The moon, the earth, the sun and other planets are all rotating around an imaginary axis, which is a rotation. <>

Kiss, expand Oh: <>

It takes 24 hours for the earth to rotate once, that is, a day in our life, all celestial bodies in the universe will rotate, the earth does not rotate, the magnetic field on the earth will be chaotic or even disappear, then there is no magnetic field to protect the earth will be disturbed by the solar wind; The earth will no longer alternate day and night, there will only be polar night and polar day, so the earth will be divided into the ice hemisphere and the fire hemisphere; The climate will also change drastically, and the earth will be an ordinary planet that is not suitable for living creatures. <>

The centrifugal force of the revolution is balanced with the gravitational force of the sun, so that the earth will not fall on the sun and burn up. Due to the effect of the sun's gravitational field and rotation, the rotation of the earth also has its own laws.

This is related to the formation of celestial bodies. The Earth rotates from west to east on its axis of rotation, rotating counterclockwise from the North Pole and clockwise from the South Pole. The Earth's axis of rotation is angled to the ecliptic plane, perpendicular to the equatorial plane.

Of course, the rotation of the earth will bring day and night, and the revolution will bring about the changes of the four seasons, and it is impossible for human beings to live in an environment where there is only day or night.

Generally speaking, the earth rotates, and people will not feel the earth rotating again because of gravity and inertia.

But from the point of view of physics, this sentence is unscientific: rotation and non-rotation are relative, if you look at the earth itself as a reference, the earth does not rotate in this way, but if you look at it in other (like the moon) references, the earth is rotated.

Man is firmly attached to the earth's surface by the earth's gravity, and the centrifugal force generated by the earth's rotation is too insignificant. And human beings always believe in what is in front of them, and the relative position of the reference object does not change, so everyone feels that they are stationary. With the help of astronomical observations, you can convince yourself; It turns out that the earth really turns.

Nonsense, of course it will turn, due to the effect of gravity, people move in a uniform circle around the earth, and the speed is the same as the speed of the earth, so people can't feel it.

The Earth revolves around the Sun, and because the angular velocity of the Earth's rotation is the same as our velocity, we don't feel it.

It's turning, otherwise our time will always stay here and won't go.

Of course, the earth rotates, and I have studied physics, inertia, understand?

Of course the earth turns.

Gravity.

Because man follows the earth.

Why does the Earth rotate?

Rotates from west to east along an imaginary axis that passes through the North and South Poles, with gravitational pull.

Playing table tennis with a racket will rotate, and the effect of gravity will probably also be used.

Because. The rotation of the planet is a necessary requirement and form of existence.

The process of forming planets in the universe.

It is a rolling way in which various gaseous elemental substances attract each other and become entangled with each other.

Thereby. led to the formation of a spherical morphology.

And it has to rotate constantly.

So. Since the earth is in the form of a "ball".

It has to be done according to this law.

If it's just going to keep turning.

Almost all celestial bodies in the solar system, including asteroids, rotate according to the law of the right-hand rule, and the rotation of all or most celestial bodies is also the right-hand rule. Why? The predecessor of the solar system was a dense cloud, driven by a certain force that caused it to attract each other, and this accretion process made the density gradually larger, which accelerated the accretion process.

On the one hand, the centripetal accretion accumulation becomes the sun, and on the other hand, the gas gradually develops into a flattened shape, and in the process of development, the potential energy becomes kinetic energy, and finally the whole thing turns. At the beginning of the rotation, there are those who turn this way, and those who turn that way, after a certain direction prevails, they all become one direction, and this direction is the right-hand rule that is now discovered, and there may be other solar systems that are left-handed rules, but in our solar system it is the right-hand rule. The energy of the earth's rotation** is caused by the eventual transformation of material potential energy into kinetic energy, which ultimately means that the earth rotates on the one hand and rotates on the other.