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| Energy created by radioactivity in the earth's interior |
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| The percent of work put into a machine that is converted to a useful output. |
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The property of a system that enables it to do work |
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| Energy of motion, described by the relationship |
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| Law of Conservation of Energy |
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| Energy can not be created nor destroyed; it may be transformed from one object to another, but the total amount of energy never changed. Hence, the momentum before an event involving only internal forces is equal to the momentum after the event. |
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| A device used for multiplying forces or simply chaning the direction of forces |
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| The stored energy that a body posseses over which a force because of its position. |
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| Rate of work; Pwer equals work divided by time. |
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The SI unit of electrical power. |
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| The product of force and distance in which the force moves; W=Fd |
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| The work done on an object is equal to the energy gained by the object. |
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The product of mass and velocity. p=mv |
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