the resistance of a piece of silver wire is 2 ohm calculate the resistance of a constant wire of one third length and half the diameter as that of silver given that the specific resistance of constant is 30 times that of silver

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.