Newton's law of universal gravitation
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Newton's law of universal gravitation states that every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. (Separately it was shown that large spherically symmetrical masses attract and are attracted as if all their mass were concentrated at their centers.) This is a general physical law derived from empirical observations by what Newton called induction.
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See also
- Gauss's law for gravity
- Kepler orbit, the analysis of Newton's laws as it applies to orbits
- Newton's cannonball
- Newton's laws of motion
- Static forces and virtual-particle exchange
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