Pls help on all 1. The gravitational force between two spherical masses is Fg. Which of the following would increase thegravitational force between the objects to 16F,?a) increasing the distance by a factor of 4.b) increasing the distance by a factor of 16.c) increasing the mass of one object by a factor of 4.d) increasing the mass of both objects by a factor of 4.2. For a given mass, m, and a given distance, d, separating you and the object, which of the followingwould exert a stronger gravitational force on you?a) an object of mass 7m a distance 15d away.b) an object of mass 9m a distance 5d away.c) an object of mass 8m a distance 3d away.d) an object of mass 12m a distance 4d away.3. Suppose a planet has half the mass of Earth but the same radius. An astronaut stands on the surfaceof the planet and drops a rock from a height of 2.4 m. How much longer does it take the rock to hit theground on that planet than it would on Earth?a) 1.2 times longer.c) 2 times longer.b) V7 times longer.d) 4.8 times longer. tion of motion.4. A satellite is in a circular orbit around the Earth at an altitude of 650 km. What orbital speed must thesatellite maintain to stay in orbit at this altitude?a) 5.7 X 103 m/sc) 2.5 X 10* m/sb) 7.5 X 103 m/sd) 7.9 X 10* m/s5. A negatively charged plastic rod comes close to but does not touch a neutral metal sphere. While therod is still close, someone momentarily touches the opposite side of the sphere with her finger. Thecharge on the metal sphere isa) negative.c) neutral.b) positived) cannot be determined.||

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1. The gravitational force between two spherical masses is Fg. Which of the following would increase the gravitational force between the objects to 16F,? a) increasing the distance by a factor of 4. b) increasing the distance by a factor of 16. c) increasing the mass of one object by a factor of 4. d) increasing the mass of both objects by a factor of 4.