*a satellite circles the moon at a distance above its surface equal to 2 times the radius of the moon. the acceleration due to gravity of the satellite, as compared to the acceleration due to gravity on the surface of the moon is a) zero. b) the same. c) one fourth as much. d) one ninth as much. 2. **satellite a has three times the mass of satellite b, and rotates in the same orbit. a) the speed of a is three times the speed of b. b) the speed of a is one third the speed of b. c) the speed of a is one-ninth the speed of b. d) the speed of a is the same as the speed of b. 3. *the acceleration due to gravity on jupiter is 2.5 times what it is on earth. an object of mass 10 kg is taken to jupiter. what is its mass there? a) 10 kg b) 25 kg c) 10 n d) 25 n