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An erg is the amount of work done by a force of one dyne exerted for a distance of one centimetre. In the CGS base units, it is equal to one gram centimetre-squared per second -squared (g⋅cm 2 /s 2). It is thus equal to 10 −7 joules or 100 nanojoules (nJ) in SI units. 1 erg = 10−7 J = 100 nJ. 1 erg = 10−10 sn⋅m = 100 psn⋅m = 100 ...
The joule (/ dʒuːl / JOOL, or / dʒaʊl / JOWL; symbol: J) is the unit of energy in the International System of Units (SI). [1] It is equal to the amount of work done when a force of one newton displaces a mass through a distance of one metre in the direction of that force. It is also the energy dissipated as heat when an electric current of ...
Energy is defined via work, so the SI unit of energy is the same as the unit of work – the joule (J), named in honour of James Prescott Joule [1] and his experiments on the mechanical equivalent of heat. In slightly more fundamental terms, 1 joule is equal to 1 newton metre and, in terms of SI base units. An energy unit that is used in atomic ...
CGS units. 13,558,180 erg. The foot-pound force (symbol: ft⋅lbf, [1] ft⋅lbf, [2] or ft⋅lb [3]) is a unit of work or energy in the engineering and gravitational systems in United States customary and imperial units of measure. It is the energy transferred upon applying a force of one pound-force (lbf) through a linear displacement of one foot.
A foe is a unit of energy equal to 10 44 joules or 10 51 ergs, used to express the large amount of energy released by a supernova. [1] An acronym for "[ten to the power of] fifty-one ergs", [2] the term was introduced by Gerald E. Brown of Stony Brook University in his work with Hans Bethe, because "it came up often enough in our work".
In particular Joule had experimented on the amount of mechanical work generated by friction needed to raise the temperature of a pound of water by one degree Fahrenheit and found a consistent value of 778.24 foot pound force (4.1550 J·cal −1). Joule contended that motion and heat were mutually interchangeable and that, in every case, a given ...
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1.7×10 −21 J. 1 kJ/mol, converted to energy per molecule [9] 2.1×10 −21 J. Thermal energy in each degree of freedom of a molecule at 25 °C (kT /2) (0.01 eV) [10] 2.856×10 −21 J. By Landauer's principle, the minimum amount of energy required at 25 °C to change one bit of information. 3–7×10 −21 J.