The image shows the electric field lines around two charged particles. at which position would the electric force be greatest? answer 4

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?