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This is the gravitational force that Newton discovered.
This attraction exists between any two objects. This attraction between objects is prevalent between all things in the universe and is called gravitational force.
Gravitation is an interaction between objects due to the mass they have. Its size is related to the mass of the object and the distance between the two objects. The greater the mass of the object, the greater the gravitational pull between them; The farther apart the objects, the less gravitational pull there is between them.
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When the solar system first formed, nebula dust rotated around the center. The momentum of that time has been preserved! There is no definite explanation as to why nebula dust rotates around the center, but it is generally believed that in order to maintain a stable orbit (without hitting the Sun), a force opposite to the centripetal force (gravity) is required, the centrifugal force, so that the planet or (natural) satellite moves in a circular motion (including ellipses).
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A system that provides energy from the same force as the spring returns to deformation: an electromagnetic balance holding system.
If the external force is withdrawn, the spring returns to equilibrium to the steady state of lowest energy;
If there is no support, the weight falls to the ground, finding a new balance under the gravitational force and supporting pressure;
If the speed is slow, the companion star will be close to the host star and release potential energy to re-accelerate the kinetic energy, finding a dynamic equilibrium under the gravitational force and the new orbit, which is in a state of equilibrium and can maintain motion for a long time without releasing energy to the outside world.
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The Earth's revolve around the Sun due to the Sun's gravitational pull, and the Moon's revolving around the Earth is influenced by the Earth's gravitational pull.
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Gravitation was described in detail by Albert Einstein, gravitational force is the curvature of space, space-time is like a net, objects will bend the net on it, and the planet will rotate along the slope if it is next to it.
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The gravitational pull between the Earth and the Sun, and between the Earth and the Moon.
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In fact, theoretically speaking, this kind of motion does not require any power. As long as their kinetic momentum is not lost, they will continue to move like this forever.
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The basic way in which the celestial bodies of the universe move between each other follows Newton's law of universal gravitation. Objects with small masses are attracted by objects with large masses, and the distance between the two determines whether the small objects are within the gravitational range of the larger bodies. When the distance is appropriate (too close, the small celestial body will collide with the large celestial body, too far away, the small celestial body will fly away from the large celestial body), the small celestial body will make elliptical motion around the large celestial body, and the centrifugal force and attraction generated by the elliptical motion reach dynamic equilibrium.
The Moon revolves around the Earth because the mass of the Earth is much greater than that of the Moon, and the distance from the Moon to the Earth places the Moon within the gravitational range of the Earth (although the Sun is massive, the Sun's gravitational pull on it is much smaller than that of the Earth because the Moon is too far away from the Sun and the mass is too small). The same is true of the Earth's rpm around the Sun. The mass of the Sun is much greater than that of the Earth (about 330,000 times that of the Earth), and the Sun-Earth distance puts the Earth within the gravitational range of the Sun (the distance is not too close and not too far, too close the Earth will crash into the Sun, too far away it will leave the solar system).
The Sun (system) is not stationary, as you asked, the Sun (system) actually orbits around the center of the Milky Way, its orbital period is 100 million years, and the center of the Milky Way is a black hole.
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The moon revolves around the earth, the earth revolves around the sun, and the stars we see don't turn. There's got to be something wrong in there.
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Blind life, you have discovered the Hua Point, the mass of the moon is.
The mass of the earth is.
The mass of the Sun is.
The distance between the earth and the moon is, the distance between the sun and the moon, and the distance between the sun and the earth is regarded as equal and taken.
According to the gravitational formula f=g*m1*m2 r 2, the earth-moon force is f=g*
The force of the sun and moon is f=g*
In summary, the Earth-Moon force is less than the Sun-Moon force, so the Moon revolves around the Sun.
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The moon revolves around the earth, and the earth revolves around the sun.
The Sun is the central body of the solar system and occupies the overall mass of the solar system. The eight planets in the solar system, asteroids, meteors, comets, outer Neptune objects, and interstellar dust all revolve around the Sun, which revolves around the center of the Milky Way.
The earth is a planet in the solar system, the sun is the main star of the earth, and the earth revolves around the sun, and one rotation is 1 year in the solar calendar.
The Moon is a satellite of the Earth, and the Moon is also the most massive satellite known to the Earth, forming a celestial system - the Earth-Moon System, and the Moon revolves around the Earth for a lunar month. The average distance between the Moon and the Earth is about 380,000 kilometers, which is about 30 times the diameter of the Earth.
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The gravitational pull of the Earth and the Moon affects each other.
According to the law of gravitation, gravity is interaction, the moon revolves around the earth, and although the gravitational pull of the earth plays a dominant role, the gravitational pull of the moon is also not negligible. In fact, the center of mass of the Moon's revolution is not at the center of the Earth, but a mass point formed by the gravity of the Earth and the Moon, around which both the Earth and the Moon revolve. Since the Earth is much more massive than the Moon, this mass is still within the Earth, but not in the center of the Earth, but at 4671km above the surface of the Earth.
Due to the dominance of the earth's gravity, the moon has long been tidally locked by the earth's gravitational force, and its rotation is synchronized with its revolution, and it can only be turned towards the earth on one side. The so-called gravitational force is a deformation of gravitational force, the gravitational force of one celestial body acts on another celestial body, the total amount is fixed, but the force acting on different positions is different, which is the gravitational force.
The gravitational pull on the celestial body varies in size, which causes the surface of the celestial body to deform and pull the celestial body, so that the rotation of the celestial body is affected and becomes slower and slower. This is how the Moon is locked by the Earth, and in the solar system, there are at least thirty moons tidally locked by the major planets. Although the gravitational pull of the Moon is much smaller than that of the Earth, its gravitational force has a significant impact on the Earth, especially on life on Earth.
<>Without the Moon, we wouldn't exist.
Don't look at the gravitational pull of the moon is much smaller than that of the earth, but the gravitational force of the moon also has a tendency to make the earth tidally locked. Scientific observations show that the Earth's rotation slows down by 15 microseconds per year, which is the result of the gravitational force of the Moon. However, even after 5 billion years, this slowdown will only be 75,000 seconds slower per year, and less than 21 hours a year, so it will not stop until the destruction of the solar system on the earth, but it shows that the moon is small and ambitious, and the trend is so.
Because the moon is very close to the earth, the moon has a greater gravitational force on the earth than the sun, so the high tide and ebb tide of the earth's sea are mainly affected by the moon's tidal force. Where the moon orbits to the earth, the tide of that position and the relative position of the opposite side of the earth is the largest, so that the earth's ocean has two high tides and ebb tides every day, and this majestic global movement is the breath of the earth and the call of life.
<> scientific research believes that if the earth had not collided with "Theia", a planet about the size of Mars 4.5 billion years ago, the earth has had four seasons of the year, the moon has been born, and there are greater ocean tides, life would probably not have been conceived and evolved, and there would be no you and me here today.
To sum up, the gravitational pull of the moon not only exists, but also seriously affects the survival and life of each of us and even all things on the earth. If there is suddenly no moon gravity, all the environment and climate of the earth will be completely changed, all life will be extinct, and the earth will become a death star. That's it, welcome to discuss, thanks for reading.
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The change is due to gravity, according to the gravitational formula f=gmm r 2, gravity is proportional to mass If the moon is replaced by another celery ball, then the focus of the change is to discuss the mass of the planet! When the quality of the Imperial Warrior changes, the gravitational force changes.
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If the earth had no gravity, then the earth would probably be floating in space, and all human beings would probably be floating in the sky and not be able to live better.
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Without gravity, these planets could collide, which would lead to serious changes in the natural environment.
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It may cause the gold balls to collide, which may affect the operation of the earth, and will also cause a lot of life to die.
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There will be a collision of celestial bodies, and with gravity, it will operate stably.
The planets revolve around the stars, and the sun is the star! The Earth is a planet. >>>More
First, the earth revolves around the sun, the sun revolves around the Milky Way, and the earth revolves around the sun, in fact, this principle depends on the mass of the body, the greater the mass, the greater the gravitational force, and the massive celestial body distorts the natural formation of space, forming a gravitational field. The reason for the rotation of the celestial bodies in the solar system is that the mass of the sun is the largest in the solar system, and its gravitational field radiates the entire solar system, and it revolves around it by its gravitational force in its gravitational field. <> >>>More
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When the earth revolves around the sun, the sun is attractive to the earth (in fact, it is mutual, because the earth is too small to obey the sun), and at the same time it produces a centrifugal force to get rid of the sun, the magnitude of the centrifugal force is proportional to the speed of rotation, fortunately the centrifugal force generated by the earth revolving around the sun, is exactly equal to the attraction of the sun to the earth, the earth will not get rid of the sun, nor will it hit it, since there is no resistance in space, the speed of the earth and the distance between the sun will always remain the same.
Rotation and revolution.
In 1543, Copernicus first put forward the concept of the earth's rotation and revolution in its book "On the Motion of the Heavenly Bodies". Since then, numerous observations and experiments have proved that the Earth rotates from west to east while revolving around the Sun. In 1851, the French physicist Foucault successfully conducted a famous experiment (Foucault's pendulum test) in Paris to prove the rotation of the Earth. >>>More