An electric current is flowing through a long cylindrical conductor with radius a. The current density J is uniform in the cylinder. In this problem we consider an imaginary cylinder with radius r around the axis AB where r

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp

The solid that is formed and usually sinks to the bottom of a solution is the

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?