A table-tennis ball is thrown at a stationary bowling ball. The table-tennis ball makes a one-dimensional elastic collision and bounces back along the same line. Compared with the bowling ball after the collision, does the table-tennis ball have (A) a larger magnitude of momentum and more kinetic energy, (B) a smaller magnitude of momentum and more kinetic energy, (C) a larger magnitude of momentum and less kinetic energy, (D) a smaller magnitude of momentum and less kinetic energy, or (E) the same magnitude of momentum and the same kinetic energy?

You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done to find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.

Aregular polygon has angkes of size 150° each.how many side has the polygon

Aproton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?