define the term energy
Nirupama26:
your answer is - the ability of an object to do work
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the strength and vitality required for sustained physical or mental activity.
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Energy is the capacity of a physical system to do work. The common symbol for energy is the uppercase letter E. The standard unit is the joule, symbolized by J. One joule (1 J) is the energy resulting from the equivalent of one newton (1 N) of force acting over one meter (1 m) of displacement. There are two main forms of energy, called potential energy and kinetic energy.
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