Another bowling ball is suspended from the ceiling on a rope. You decide to start it swinging by pulling back on it so that it is raised 0.45 meters higher than it was to start. You let it swing: how fast is it moving at the bottom of its swing? How fast is it going at the top of its swing?

Which changes of state do the labels represent? a: b: c:

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false