Acurling stone, with a mass of 20.0 kg, slides across the ice at 1.50 m/s. it collides head on with a stationary 0.160-kg hockey puck. after the collision, the puck's speed is 2.50 m/s. what is the stone's final velocity?

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.