A 200 kg car is moving rightward at 3 m/s. What speed should a leftward moving 300 kg car have so that the two collide and come to a stop? (​Set the Blue bumper car mass to 200 kg and velocity to +3 m/s. Set the Red bumper car mass to 300 kg and the bumper type to Locking. Adjust the Red car velocity so that the two come to a stop after they collide).

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?