At the beginning of a basketball game, a referee tosses the ball straight up with a speed of 4.6 m/s. a player cannot touch the ball until after it reaches its max height and begins to fall down. what is the minimum time that a player must wait before touching the ball?

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)