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Unformatted text preview: Worksheet 9: Conservation of Energy Questions 1. Because the fiberglass pole can bend, more energy can be stored in the bend of the pole. 2. The energy of impact can either go into the car or into you. Cars the crumple take more of the energy of impact into crumpling and not into throwing around their passengers. 3. The energy is stored in the tectonic plates that are being compressed and want to move past each other but cannot because of friction (or whatever it is that keeps the plates from moving relative to each other). 4. A hiker performs less work moving their leg over the log while keeping their bodys center of mass at the same height, as opposed to moving your entire body up the log and then down it. 5. The total amount of work is the same, however, by following a zig-zag trail, you use less power. 6. A pendulum bob is released from rest. (a) The potential energy decreases linearly from U = mgh to zero, the total energy remains constant at E = mgh and kinetic energy increases linearly so that...
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