Harrison kicks a soccer ball which rolls across a field with a velocity of 5 m/s. What is the ball’s total kinetic energy? The ball doesn’t slip, and is a hollow sphere of mass 0.43 kg and radius 0.11 m.

Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

Which subatomic particle has a negative charge