An Olympic volleyball player spikes a 1.0 kg volleyball at a velocity of 20 m/s. What is the kinetic energy of the volleyball?

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.

Positrons are spontaneously emitted from the nuclei of

Match each scenario to the form of energy it represents