The slug is an English and U.S. customary unit of mass. The slug is part of a subset of coherent units known as the gravitational foot-pound-second system, one of several such specialized systems of mechanical units. It is the mass that accelerates by when a force of one pound-force (lbf) is exerted on it. Therefore a slug is about 32.174 05 pounds or 14.593 90 kg.

››Definition: Electron volt

In physics, the electron volt (eV) is a unit of energy. By definition, it is equal to the amount of kinetic energy gained by a single unbound electron when it accelerates through an electrostatic potential difference of one volt.

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