Describe two different investigations you could do to determine whether a capacitor is already charged or if it is uncharged. Explain each investigation carefully

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.

A51 kg woman skis down a hill and her kinetic energy is 9.96e4 j. what is her speed?

Two positive charges are equal. which has more electric potential energy?