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     • According to Newton's law of universal gravitation, the magnitude of the attractive force (F) between two bodies each with a spherically symmetric density distribution is directly proportional to the product of their masses, m1 and m2, and inversely proportional to the square of the distance, r, directed along the line connecting their centres of mass: The constant of proportionality, G, in this non-relativistic formulation is the gravitational constant.
     en.wikipedia.org/wiki/Gravitational_constant

     Gravitational constant - Wikipedia

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   What is the value of gravitational constant?

   • The world heard nothing of these discoveries. Gravitational constant, physical constant denoted by G and used in calculating the gravitational attraction between two objects, which is equal to G times the product of the masses of the two objects divided by the square of the distance between them. The value of G is 6.6743 x 10^-11 m^3 kg^-1 s^-2.

   Gravitational constant | Definition, Value, Units, & Facts | Britannica

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   What is gravitational constant (G)?

   • gravitational constant (G), physical constant denoted by G and used in calculating the gravitational attraction between two objects.

   Gravitational constant | Definition, Value, Units, & Facts | Britannica

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   How does the gravitational constant work?

   • Here’s how it works. Can the gravitational constant change? The gravitational constant describes the intrinsic strength of gravity, and can be used to calculate the gravitational pull between two objects. Also known as "Big G" or G, the gravitational constant was first defined by Isaac Newton in his Law of Universal Gravitation formulated in 1680.

   What is the gravitational constant? | Space

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   How does mass affect gravity?

   • Anything that has mass also has gravity. Objects with more mass have more gravity. Gravity also gets weaker with distance. So, the closer objects are to each other, the stronger their gravitational pull is. Earth's gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body.

   What Is Gravity? | NASA Space Place – NASA Science for Kids

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   Is gravity a magnet or a force?

   • Image courtesy of NASA/JPL-Caltech. What is gravity? Gravity is a pulling force (always a force of attraction) between every object in the universe (every bit of matter, everything that has some mass) and every other object. It's a bit like an invisible magnetic pull, but there's no magnetism involved.

   Gravity: A simple introduction - Explain that Stuff

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   How is gravitational force determined?

   • "For any two masses, be they bowling balls or planets, the gravitational force between them is determined by their masses, their distance and the number G," says Mack. Thanks to experiments conducted by Henry Cavendish in the 1790s, we now know the gravitational constant has the numerical value of around 6.67 x 10 -11 Newtons (m2/kg2).

   Exploring the "G" in Newton's Law of Universal Gravitation

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3. science.howstuffworks.com › math-conceptsExploring the "G" in Newton's Law of Universal Gravitation

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   Nov 7, 2023 · Sir Isaac Newton's Law of Universal Gravitation helps put the laws of gravity into a mathematical formula. And the gravitational constant is the "G" in that formula.

   • Theory of General Relativity

     If you're going to know one scientific theory, make it the...

4. en.wikipedia.org › wiki › Gravitational_constantGravitational constant - Wikipedia

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   In these units, the gravitational constant is: In orbital mechanics, the period P of an object in circular orbit around a spherical object obeys where V is the volume inside the radius of the orbit, and M is the total mass of the two objects. It follows that.

5. www.britannica.com › science › gravitational-constantGravitational constant | Definition, Value, Units, & Facts ...

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   Sep 23, 2024 · Gravitational constant, physical constant denoted by G and used in calculating the gravitational attraction between two objects, which is equal to G times the product of the masses of the two objects divided by the square of the distance between them. The value of G is 6.6743 x 10^-11 m^3 kg^-1 s^-2.

   • Author: The Editors of Encyclopaedia Britannica

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7. www.britannica.com › science › Newtons-law-ofNewton’s law of gravitation | Definition, Formula, & Facts ...

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   • Overview
   • Gravitation
   • Planetary motion
   • Second law
   • Third Law
   • Orbits

   This article is about Kepler's laws of planetary motion which describe the motions of planets in the solar system that were derived by German astronomer Johannes Kepler with later contributions from Sir Isaac Newton for his law of gravitation. It also mentions how these laws apply not only to gravitational but also other inverse-square-law forces.

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   The article is about the laws of gravitation.

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   Kepler’s three laws describe the motions of planets in the solar system, including elliptical orbits and angular momentum.

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   A radius vector joining any planet to the Sun sweeps out equal areas in equal lengths of time.

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   The squares of sidereal periods are directly proportional to cubes of mean distances from Sun.

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   Laws apply not only to gravitational but also to all other inverse-square-law forces and electromagnetic forces within atom if allowance made for relativistic and quantum effects.

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   • Author: The Editors of Encyclopaedia Britannica

8. www.space.com › what-is-the-gravitational-constantWhat is the gravitational constant? | Space

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   Sep 21, 2022 · The gravitational constant is the key to measuring the mass of everything in the universe. For example, once the gravitational constant is known, then coupled with the acceleration due to...

9. spaceplace.nasa.gov › what-is-gravity › enWhat Is Gravity? | NASA Space Place – NASA Science for Kids

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   Oct 11, 2024 · Gravity creates stars and planets by pulling together the material from which they are made. Gravity not only pulls on mass but also on light. Albert Einstein discovered this principle.

10. www.explainthatstuff.com › gravityGravity: A simple introduction - Explain that Stuff

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    Jan 6, 2022 · Gravity is a pulling force (always a force of attraction) between every object in the universe (every bit of matter, everything that has some mass) and every other object. It's a bit like an invisible magnetic pull, but there's no magnetism involved.