Apendulum is made up of a small sphere of mass 0.500 kg attached to a string of length 0.750 m. the sphere is swinging back and forth between point a, where the string is at the maximum angle of 35.0∘ to the left of vertical, and point c, where the string is at the maximum angle of 35.0∘ to the right of vertical. the string is vertical when the sphere is at point b. calculate how much work the force of gravity does on the sphere from a to b. express your answer with the appropriate units.

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p