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If man is mainly affected by the gravitational attraction of other stars in the universe, according to the gravitational force f=gmm r 2, under the condition that the mass of two objects remains unchanged, the magnitude of the force depends on the distance r between them, the closer the distance, the greater the gravitational force, and the farther the gravitational force is, the smaller the gravitational force.
Moreover, there are countless stars in the universe, so the gravitational force of the object is not unique, if the net force of the gravitational force is exactly zero, it will maintain its original state of motion, if it is very close to a certain star, and its gravitational force is particularly strong, it will be attracted by it, change the state of motion, or move towards its center (for example, people will fall in the air), or it may move in a circle around it (such as the orbit of an artificial satellite around the earth).
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Yes, yes, but the distance between the stars in the universe is very, very far, not as close as it seems on the earth, and it is difficult to find a planet with a moderate mass like the earth, so it is very likely that people enter the universe, not because the mass of the planet is too small to capture people, or if you encounter a planet with a large mass, you will be sucked directly into a cake!
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--- person entering the universe will be controlled by the surrounding material field (stars)!
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Yes, just like on Earth.
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It will be absorbed by other celestial bodies such as black holes, and if you can really go to space, you can only feel ...... once
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Yes, enter the universe and you'll be flying back and forth between the stars.
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People are originally in the universe, otherwise you are in **?
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The force that keeps all planets suspended in space is Newton's law.
The reason why the planet is able to levitate in space is because the planet has reached a state of equilibrium of power that attracts its mother. Because it will not fall on the "ground" of the parent planet, nor will it fly through the universe, let alone become a lonely galaxy.
Newton's laws of motion include Newton's first law.
The second law of motion, Newton's third law of motion.
The Three Laws, Isaac Newton's Principles of Mathematics in Natural Philosophy in 1687
summarized in the book. Here, the first law explains the meaning of force. Force is what changes the state of motion of an object. The Second Law.
The role of force is indicated. The force accelerates the object. The third law reveals the essence of force silver: force is an interaction between objects. Newton's laws of motion.
The laws are independent of each other, and the internal logic is self-consistent. The application range is the classical mechanics range, and the application conditions are particles, inertial reference systems, macroscopic and low-speed motion problems. Newton's laws of motion explain the complete system of Newtonian mechanics and the basic laws of motion of classical force, which are widely used in various fields.
In secondary school physics, gravity refers to an attraction between objects. The greater the mass of an object, the stronger the gravitational force exerted on other objects, Newton's law of gravitation.
can describe this phenomenon very well. According to Newton's theory of gravity, the gravitational force between objects is directly proportional to the product of mass and inversely proportional to the square of the distance from the center of mass. Gravity is one of the four fundamental forces, and gravity is much weaker than his three fundamental forces, but it is a force at a distance.
That is, no matter how far apart the two objects are, there is a gravitational force. This effect can be seen in the law of gravitation. It is precisely because of the presence of gravity that the moon.
The earth, the sun and other celestial bodies can be formed, the moon can revolve around the earth, the earth can revolve around the sun, and people can stand on the earth.
The reason why the planet has been suspended in the air is that this planet has reached a state of equilibrium of forces that attract its mother. That's because it won't fall on the "land" of the home city, it won't fly through the universe, and it won't become a lonely galaxy.
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The force that allows the planets to be suspended in space is because there is no gravity in the vacuum, and this enlightens the planets to have their own gravity and the gravitational pull of other planets, so they can maintain balance.
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The space we are currently able to study is in a vacuum, in which the planets orbit in their own orbits.
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The force that keeps the planets suspended in space is the gravitational pull of the planet itself, and the balance between the gravitational pull of other planets.
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Newton's theory of gravitation is the basic knowledge of classical mechanics. Gravitational attraction is permeated not only on Earth, but also in the universe, but Newton only proposed the existence of gravity, but did not give a proper explanation for the creation of gravity. It wasn't until Einstein's theory of relativity that we understood the meaning of gravity and gravitational waves.
For the universe we live in, gravity is the fundamental reason that keeps the entire universe in dynamic equilibrium. The major galaxies are connected by gravity, from star to galaxy, step by step to form a large and unified cosmic galaxy network.
Einstein told us that gravitational measurement is generated because of weight, around a massive star, there will inevitably be a certain number of planets and other celestial bodies, revolving around the star, in the movement of celestial bodies, gravity is the only force, but in the environment of the universe, the generation of gravity has a deeper explanation, that is, the distortion of space-time caused by massive celestial bodies, just like the water vortex, the greater the mass of the celestial body, the space distortion will increase, and then bring about a sharp rise in gravity.
However, did Einstein really explain the birth of gravity? Looking at the whole theory of general relativity, we can find some arguments about space-time distortions, but if space-time is distorted, then all the planets around the Sun will eventually slide towards the Sun, instead of rotating around the Sun for billions of years. Some people explain that this is because of the inertia of the planets, but the view of space-time distortion does not fail to explain the generation of planetary revolutions.
For human beings, the gravitational pull of the earth is too great, and the gravitational force between the stars in space is difficult to see with our human intelligence, but gravity is indeed the force behind the operation of the entire universe. Perhaps the creation of gravity requires other, more esoteric explanations, which will require the efforts of the next generation of scientists.
What do you think?
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In fact, the Milky Way is falling in a certain direction, but it will never fall to the end, perhaps it would be better to describe it as a bottomless pit, however, on a smaller scale, such as the extent of the solar system, needs to be understood with another model, but gravity invariably plays a role, for example, the only link between the Earth and the Sun is gravity, so why didn't the huge body of the Sun drag the Earth into the Sun, of course, it is clear that the balance with gravity is the centrifugal force generated by the Earth Revolution.
So it is clear that this velocity is between perihelion and perihelion, because the Earth's orbital velocity is 30 3 km s, it exceeds the speed of the Earth's orbit, so it runs out of perihelion of 147.1 billion km, an elliptical orbit at a distance of 15.2 billion km, however, all the celestial bodies in the solar system are in orbit, they do not separate from the solar system or set the Sun, they are in equilibrium, but the Sun is gradually losing its mass, so the Earth will gradually move away from the Sun in the future, In the era of white dwarfs of the future Sun, the Earth will be far away from the Sun.
Space, like space, is an invisible or intangible substance, and at the same time, space and matter have opposite characteristics. Therefore, there is a negative, positive relationship between space and matter, that is, space is a negative substance. Because space and matter have the property of infinite division, but the direction of infinite division of matter changes from the outside to the inside, that is, the direction of the infinite movement of the particles of matter is from the outside to the inside, condensing the matter into various chemical elements.
Various substances and countless stars and galaxies from the outside to the inside, however, the direction of the infinite division of the negative matter is exactly the opposite of the direction of the infinite division of the matter, which makes the direction and direction of motion of the negative matter change from the inside to the outside, from the inside to the outside, the negative matter forms a very large chemical space around the chemical particles, and the negative matter forms a very large space around the stars.
As for the question of what force makes the planets suspended in space fall down, here is the explanation today.
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It should be gravity, the gravitational pull from different stars, planets, and other matter, so that different planets are suspended in space, and if the gravitational field changes, the planets may be "the jungle".
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Planets don't need strength to float in space because space has no gravity. It won't fall, because there is no power to make the planet fall, so the planet will always float in space.
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Since the big **, countless celestial bodies have been formed in the universe, including stars, planets, black holes, etc., no matter what kind of planet, we will find that they are all "floating" in the universe, so some people wonder: why do planets "float" in the universe? What kind of power is this?
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Before you fall, you tell me**yes**yes**yes down.
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According to Newton's famous law of gravitation, any two particles are attracted to each other by forces in the direction of the concentric line.
It can be seen from the law that any object with mass has a gravitational force, and the magnitude of the gravitational force is proportional to the product of the mass of the object, inversely proportional to the distance between the objects, and the chemical composition of the two objects and the type of medium between them.
And the planets all have great mass, so there will be gravitational attraction on the planets.
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The black hole** we see is only a shadow of a black hole. The object or space in a black hole may be a passage to another planet or to a higher latitude.
This kind of thing is a very small probability, because the spaceship itself has a certain probe in front of it, and if there is debris, it can be advanced ** and will be dodged in time, so this situation is no problem at all.