Abike rider does work to get to the top of a mountain. how could you use the law of conservation of energy to describe his trip down the mountain? a. the rider uses energy to do work going up the mountain. b. this energy is converted to potential energy and then changes into kinetic energy on the way down. c. the bike rider's stored chemical energy allows him to move down the mountain, storing more and more energy as he goes. d. the bike rider gains electrical energy going up, which changes into electromagnetic energy on the way down.

High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.

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The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.