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| a particle having the same mass and spin as an electron but having a positive charge equal in magnitude to that of the electron's negative charge |
| energy transmitted in wave motion, especially electromagnetic wave motion |
| foot-pound | |
| —n | |
| ft-lb an fps unit of work or energy equal to the work done when a force of 1 pound moves through a distance of 1 foot | |
foot-pound n.
A unit of work equal to the energy expended, or work done, in raising a mass of 1 pound a height of 1 foot against gravity.
foot-pound
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