Answer the following show all work

12. (3 points) If a person weighs 200N and is on an elevator that is accelerating upward at a = .1g then the weight of the person in the elevator will be A. 200N B. 180N C. 220N D. ON E. 400N 13. (3 points) If a person is orbiting the Earth at a distance of four earth radii from the center of the Earth, the weight of the person will, A. Be four times his weight on the surface of Earth B. Be sixteen times his weight on the surface of Earth C. Be one fourth his weight on the surface of Earth D. Be one sixteenth his weight on the surface of Earth E. The weight of the person will not change. 14. (3 points) If the gravitational force between two objects is 400N and the distance between them is doubled then the force between them will be, A. 800N B. 600N C. 400N D. 200N E. 100N 15. (3 points) If the gravitational force between two objects is 400N and one mass is increased by four and the other mass is decreased by half then the force between them will be, A. 800N B. 600N C. 400N D. 200N E. 100N