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7. all objects that have gravity have kinetic energy.
8. an object that has a greater mass and density has a greater kinetic energy than
an object that has less of each.
9. electrons in an atom move around the nucleus.
10. potential energy and electric energy can combine to form a system.
glence/cgraw-hill, a division of the
11. everything that is not part of a system is part of gravitational potential energy.
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12. the nerves in your body that send signals from your arm to your brain use
electric energy
13. the food you eat provides your body with nuclear energy.