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This tag is for questions regarding the Newtonian model of gravity in which the force between two objects is given by $~GMm/r^2~.$ It is a natural phenomenon by which all things with mass or energy – including planets, stars, galaxies, and even light – attract one another. On Earth, gravity gives weight to physical objects, and the Moon's gravity causes the ocean tides.

2 votes

Similarity between the Coulomb force and Newton's gravitational force

In an inertial reference frame at rest to a charge, one only sees a Coulomb field. When transformed into another inertial reference frame in motion relative to the charge, one gets a magnetic field. …
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