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# What does the law of universal gravitation mean to us?

Updated: 4/28/2022 Deathangel

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9y ago

The law of universal gravitation establishes the ratio of two objects attraction based on mass and an inverse of distance. This means that people will stay on the earth because of their proximity, but that massive objects like the sun and Jupiter will not suddenly crash into each other because of their distance. Wiki User

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Q: What does the law of universal gravitation mean to us?
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### Explain how the law of gravitation enables us to measure the masses of astronomical bodies?

You can use Newton's law of universal gravitation. The law states that F = (G*m^2)/(r^2) where F is the force in newtons (N), m is the mass in kilograms (kg), r is the radius in meters (m)

### Can you give an example of a sentence using the word gravitation?

Newtons law of gravitation show us that the gravitation force between two objects directly proportion to their masses.

### What states that the total momentum of objects that interact do not change?

You have more or less described a law of physics known as conservation of momentum, which is not the same thing as the law of universal gravitation. The law of universal gravitation describes the way mass attracts other mass, and the law of conservation of momentum tells us that momentum is neither created nor destroyed. These two laws are not connected.

Isaac Newton.

### Who named the force gravity?

Sir Isaac Newton, the English Mathematician and Physicist who created the theory of gravity that explained the effects of it that we see around us, called it "Universal Gravitation".

### How do they determine the weight of a planet?

We start by determining the mass of the Earth. Issac Newton's Law of Universal Gravitation tells us that the force of attraction between two objects is proportional the product of their masses divided by the square of the distance between their centers of mass. To obtain a reasonable approximation, we assume their geographical centers are their centers of mass.Because we know the radius of the Earth, we can use the Law of Universal Gravitation to calculate the mass of the Earth in terms of the gravitational force on an object (its weight) at the Earth's surface, using the radius of the Earth as the distance. We also need the Constant of Proportionality in the Law of Universal Gravitation, G. This value was experimentally determined by Henry Cavendish in the 18th century to be the extemely small force of 6.67 x 10-11 Newtons between two objects weighing one kilogram each and separated by one meter. Cavendish determined this constant by accurately measuring the horizontal force between metal spheres in an experiment sometimes referred to as "weighing the earth."

### How did astronomers calculate the sun's mass?

We start by determining the mass of the Earth. Issac Newton's Law of Universal Gravitation tells us that the force of attraction between two objects is proportional the product of their masses divided by the square of the distance between their centers of mass. To obtain a reasonable approximation, we assume their geographical centers are their centers of mass.Because we know the radius of the Earth, we can use the Law of Universal Gravitation to calculate the mass of the Earth in terms of the gravitational force on an object (its weight) at the Earth's surface, using the radius of the Earth as the distance. We also need the Constant of Proportionality in the Law of Universal Gravitation, G. This value was experimentally determined by Henry Cavendish in the 18th century to be the extemely small force of 6.67 x 10-11 Newtons between two objects weighing one kilogram each and separated by one meter. Cavendish determined this constant by accurately measuring the horizontal force between metal spheres in an experiment sometimes referred to as "weighing the earth."

### How are scientific fact and a law different?

A fact can be either a general observation (water boils at 100o Celsius under normal atmospheric pressure) or a specific observation (this glass contains 100 milliliters of water). A law of nature is some illuminating general observation that helps us to understand how the universe works. The classic example of this is Newton's Law of Universal Gravitation - which remains very useful, even though it has been subject to revision by Einstein.

### What are laws and treaties in science?

In science, a law is a concise and usually mathematical statement that describes how a particular phenomenon works. The best known example is the law of gravity (or as originally stated, Newton's Law of Universal Gravitation) which tells us, among other things, why things fall and how fast they will fall, why the moon orbits the Earth and why the Earth orbits the sun, and so forth. Science does not make treaties, however. Treaties exist only in the realm of politics, not science.

### What is universal about Newton's law of universal gravitation?

Newton's law of universal gravitation is about the universality of gravity. He discovered that gravitation is universal. All objects attract each other with a force of gravitational attraction. Gravity is universal. This force of gravitational attraction is directly dependent upon the masses of both objects and inversely proportional to the square of the distance that separates their centers.

### When was Universal Airlines - US - created?

Universal Airlines - US - was created in 1966.

Gravitation