Erg
9877
223340392
2008-07-03T17:25:51Z
Bkell
32452
the E in E=mc^2 stands for energy, not ergs (energy can be measured in any unit)
{{otheruses}}
An '''erg''' is the unit of [[energy]] and [[mechanical work]] in the ''[[Centimetre gram second system of units|centimetre-gram-second]]'' (CGS) system of [[Units of measurement|unit]]s, symbol "erg". Its name is derived from the [[Greek language|Greek]] ''ergon'' meaning work <nowiki>[</nowiki>[[Oxford English Dictionary|OED]]<nowiki>]</nowiki>.
The erg is a small unit, equal to a force of one [[dyne]] exerted for a distance of one [[centimetre]]. In the CGS [[Unit of measurement#Base and derived units|base units]], it is equal to one [[gram]] centimetre-squared per [[second]] squared (g·cm²/s²). It is thus equal to [[1 E-7 J|1 × 10<sup>−7</sup> joule]]s or 100 nanojoule (nJ) in [[SI]] units.
1 erg = 10<sup>−7</sup> [[joule]]
1 erg = 6.2415 {{e|2}} GeV = 6.2415 {{e|11}} eV
1 joule = 10<sup>7</sup> erg
1 [[dyn]] cm = 1 erg.
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[[Category:Units of energy]]
[[Category:Centimetre gram second system of units]]
[[be-x-old:Эрг]]
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[[fa:ارگ (یکا)]]
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