...it along the base and raising it vertically upward. 4. If two particles attract each other directly as the product of their masses, and inversely as the square of the distance between them, find the work done, wheri they have moved from an infinite distance apart to...

...known by his name. It may be stated as follows: The gravitation between any two bodies varies directly as the product of their masses and inversely as the square of the distance between their centers of mass. Weight or Gravity. — The most familiar example of gravitation...

...According to Newton's law of gravitation, two bodies attract each other with a force proportional to the product of their masses, and inversely as the square of the distance between the bodies. From this law the paths of the planets about the sun have been calculated,...

...For instance, when we observe that two bodies always attract each other with a force varying directly as the product of their masses and inversely as the square of their distance apart, we call this fact the " law of gravitation " ; but when we go and deliberately...

...following : ' That all bodies tend to attract each other mutually with a force that varies directly as the product of their masses and inversely as the square of the distance between them.'t In his attempt, then, to explain causally the movements of the heavenly bodies,...

...that every particle of matter attracts every other particle, and suspected that the attraction varied as the product of their masses, and inversely as the square of the distance between them; but it is certain that he did not then know what the attraction of a spherical...

...following : ' That all bodies tend to attract each other mutually with a force that varies directly as the product of their masses and inversely as the square of the distance between them.'f In his attempt, then, to explain causally the movements of the heavenly bodies,...

...104, when two bodies in space are considered, since in such cases the attractive force varies directly as the product of their masses and inversely as the square of the dis__ tance between them. The same atO traction holds between two opposite ' poles of magnets or between...

...whose direction is that of the straight line joining the two, and whose pull is in proportion directly as the product of their masses, and inversely as the square of their distance. ' ' That law rules every particle of matter in the universe — even the materials...

...particle of matter in the universe attracts every other particle with a force whose magnitude is directly as the product of their masses, and inversely as the square of their distances. Let us therefore consider one of the particles, A, of a comet, and let us represent...