The drawing shows the electric potential as a function of distance along the x axis. Determine the magnitude of the electric field in the region (a) A to B, (b) B to C, and (c) C to D. (a) Number Units (b) Number Units (c) Number Units
A 5.0 kg block moves in a straight line on a horizontal frictionless surface under the influence of a force that varies with position as shown below. (a) How much work is done by the force as the block moves from the origin to x = 8.0 m? (b) It the block has a speed of 2.1 m/s at the origin, what is its speed when it reaches x = 8.0 m?