A 0.450-kgkg ice puck, moving east with a speed of 5.22 m/sm/s , has a head-on collision with a 0.900-kgkg puck initially at rest. Assume that the collision is perfectly elastic. Part A What is the speed of the 0.450-kgkg puck after the collision

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

Oxygen and nutrients are moved through the body by the: a. circulatory system c. lymphatic system b. digestive system d. reproductive system

Select the three ways that the parallel-plate capacitor differs from a car battery.