Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 46
e mole-cules in elastic bodies consists in pushing the molecules toone side, or in changing their relative position. But the *If the English system is used, the unit of force is the force that will moveone pound one foot in one second, and it is called the foot-pound. 36 IMPULSIVE FOKCES.… … 124. The movement of force by moleculesis well illustrated by the collision balls, Fig.30. If the first be drawn out and allowedto fall upon the next, the force is transmittedundiminished, except by a lack of elasticity,to the last, which moves out as far as thefirst was drawn out. So if a long…
Physics
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