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Ball A, with mass m is a distance d from ball B, which has a mass of 3m. At which of the following distances is the gravitational attraction of the balls on each other equal? a.) d/9 b.) d/3 c.) 2d/3 d.) Any separation distance

Spherical planet A has mass m and radius r. Spherical planet B has mass and  radius 2r. How does the gravitational field strength at the surface of planet B compare to the gravitational field strength at the surface of planet A? a) It is the same as plan...

The period of a satellite is independent of a) Its own mass b) The mass of the planet it orbits c) The value of the gravitational constant The orbital d) radius

yes it is 8....