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Lolagoeslala
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Homework Statement
The force of gravity on a spacecraft some distance from Earth is 900 N. What will be the force of gravity on a spacecraft with twice the mass, at a distance from Earth’s centre that is as far?
Lolagoeslala said:Homework Statement
The force of gravity on a spacecraft some distance from Earth is 900 N. What will be the force of gravity on a spacecraft with twice the mass, at a distance from Earth’s centre that is as far?
phinds said:Please read the forum rules about how to post homework problems. You have to show some attempt to solve it yourself so folks will know where you are stuck.
Newton's law of universal gravitation states that every object in the universe attracts every other object with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
Sir Isaac Newton discovered and published his law of universal gravitation in his famous work "Principia Mathematica" in 1687.
Newton's law of universal gravitation explains why objects fall towards the center of the Earth, and is also used to calculate the gravitational force between planets and other celestial bodies.
Yes, Newton's law of universal gravitation is still considered a valid and accurate theory in the field of physics, although it has been further refined and expanded upon by Einstein's theory of general relativity.
Newton's law of universal gravitation is a classical theory that works well for most everyday objects and situations. However, it does not hold true in extreme situations such as at the quantum level or near massive black holes, where the effects of general relativity become more prominent.