The acceleration of the moon is about 1/3600 of the acceleration of objects falling on earth, which confirms Newton’s view that the same force that makes objects on the surface of the earth fall, keeps the moon in orbit, because the moon is about 60 Earth radii from the Earth. True

Or

False?

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.