The joule (J) is the SI unit of energy and work, and is defined as 1 kg m2 s-2 = 1 N m = 1 W s. It is named in honour of the physicist James Prescott Joule.
The work required to lift 102 g (e.g. a small apple) for one metre under the earth's gravity is 1 joule.
See 1 E0 J for comparisons.
See also: conversion of units, eV, kWh, TWh
... like it would be the same number, but in fact it tends to be considerably higher because much of the energy generated will tend to "escape" any reasonably sized machine. ...
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