Two blocks with masses 5m and 6m are on a collision course with the same initial speeds vi. The block with mass 5m is traveling to the left, and the 6m block is traveling to the right. They undergo a head-on elastic collision and each rebounds, retracing its original path. Find the final speeds of the particles. (Enter your answers in terms of vi, the initial speed of each mass.)

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.