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kinetic energy |
Also found in: Medical, Legal, Financial, Acronyms, Encyclopedia, Wikipedia, Hutchinson | 0.02 sec. |
kinetic energy n (Physics / General Physics) the energy of motion of a body, equal to the work it would do if it were brought to rest. The translational kinetic energy depends on motion through space, and for a rigid body of constant mass is equal to the product of half the mass times the square of the speed. The rotational kinetic energy depends on rotation about an axis, and for a body of constant moment of inertia is equal to the product of half the moment of inertia times the square of the angular velocity. In relativistic physics kinetic energy is equal to the product of the increase of mass caused by motion times the square of the speed of light. The SI unit is the joule but the electronvolt is often used in atomic physics. Symbol Ek K, T Abbreviation KE
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| The law of conservation of energy ensures that when the two balls collide, the cue ball will transfer some of its kinetic energy (energy of motion) to the colored one. The speeding molecules typically lose their extra kinetic energy in one of two ways: They transfer it as heat to another molecule via a collision, or they radiate a photon. The REXTM from SCIFIT features the new Orbi-Linear exercise movement designed to build kinetic energy as the user's legs move in a natural orbital motion, and their arms in a smooth arc. |
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