Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 54
to a separatechamber at O. 29. Law of UniversalGravitation. — The Law of Universal Gravitation,discovered by Sir IsaacNewton toward the end ofthe seventeenth century,may be stated as follows: Every particle of matter in the universe attracts everyother particle with a force whose direction is that… … Fig. 31. (44) f= a mm where m and mf are, respectively, the masses of the particles,r the distance between them, and 6r a constant to be deter-mined by experiment. As a groundwork for this great generalization, Newtonemployed the results of two of the greatest astronomers who ■ 4 SIMPLE TYPES OF…
Physics
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