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Unformatted text preview: G = 6.672 × 1011 m 3 /(kg sec 2 ). If you need a refresher on exponents, square & cube roots, and scientific notation, then please study the math review appendix. Spherically symmetric objects (eg., planets, stars, moons, etc.) behave as if all of their mass is concentrated at their centers. So when you use Newton's Law of Gravity, you measure the distance between the centers of the objects. In a bold, revolutionary step, Newton stated that his gravity law worked for any two objects with massit applies for any motions on the Earth, as well as, any motions in space. He unified celestial and terrestrial physics and completed the process started by Copernicus of removing the Earth from a unique position or situation in the universe. His law of gravity also explained Kepler's 1st and 2nd laws....
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This note was uploaded on 12/15/2011 for the course AST AST1002 taught by Professor Emilyhoward during the Fall '10 term at Broward College.
 Fall '10
 EmilyHoward
 Astronomy

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