A student eats a candy bar that contains 1.57 x 106 J of energy. If the student has a mass of 81.8 kg, how high will he have to climb a ladder to completely offset the energy contained in the candy bar?

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

Aball is thrown horizontally from a cliff at 8m/s .in what direction is the ball moving 2s later?