Chapter+12+Universal+Gravitation

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Newton's Law of Universal Gravitation states that every object attracts every other object with a force that for any two objects is directly propprtional top the mass of each object. F directly proportional to mass 1 times mass 2 divide by distance. Universal Gravitational constant is the proportionality form of the law of universal gravitation can be expresses as an exact equation with the constant of proportionality G F is directly proportional to proportionality G times (mass 1 times mass 2 divide by distance squared) Inverse-Square law is when a quantity varies as the inverse square of its source. Perturbation is a deviation of two planets from their normal orbit. media type="youtube" key="391txUI76gM" height="390" width="480"

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