A 7 kg bowling ball moving to the right at 11 m/s strikes a 5 kg bowling ball moving to the left at 9 m/s. Determine the initial momentum of the system. If the 7 kg bowling ball bounces back with a velocity of 7 m/s, what is the velocity of the 5 kg ball after the collision?

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

Which notation is used to represent an alpha particle? a. b. c. d.