Joule-second

Joule-second

The joule-second is a unit equal to a joule multiplied by a second, used to measure action or angular momentum. The joule-second is the unit used for Planck's constant.

Action

The action of a system has the dimensions of energy integrated over time; it is therefore measured in joule-seconds.

Angular momentum

The angular momentum of an object is the integral with respect to time of the torque on the object. Torque in the SI system has the unit N·m, so angular momentum has the unit N·m·s, or J·s.


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  • joule-second — džaulis iš sekundės statusas T sritis Standartizacija ir metrologija apibrėžtis Planko konstantos vienetas: J · s. atitikmenys: angl. joule second vok. Joulesekunde, f rus. джоуль секунда, f pranc. joule seconde, f …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • ampere-square metre per joule second — amperas kvadratinis metras džauliui sekundei statusas T sritis Standartizacija ir metrologija apibrėžtis Giromagnetinio koeficiento arba giromagnetinio santykio vienetas: 1 A · m²/(J · s) = 1 T⁻¹ · s⁻¹ = 1 A · s/kg. atitikmenys: angl. ampere… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • joule-seconde — džaulis iš sekundės statusas T sritis Standartizacija ir metrologija apibrėžtis Planko konstantos vienetas: J · s. atitikmenys: angl. joule second vok. Joulesekunde, f rus. джоуль секунда, f pranc. joule seconde, f …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • joule — (j[=oo]l), n. [From the distinguished English physicist, James Prescott Joule (1818 1889).] (Physics.) A unit of work which is equal to 10^{7} ergs (the unit of work in the C. G. S. system of units), and is equivalent to one watt second, the… …   The Collaborative International Dictionary of English

  • Joule's equivalent — joule joule (j[=oo]l), n. [From the distinguished English physicist, James Prescott Joule (1818 1889).] (Physics.) A unit of work which is equal to 10^{7} ergs (the unit of work in the C. G. S. system of units), and is equivalent to one watt… …   The Collaborative International Dictionary of English

  • Joule's laws — are a pair of laws concerning the heat produced by a current and the energy dependence of an ideal gas to that of pressure, volume, and temperature, respectively. Joule s first law, also known as the Joule effect, is a physical law expressing the …   Wikipedia

  • Joule heating — Joule heating, also known as ohmic heating and resistive heating, is the process by which the passage of an electric current through a conductor releases heat. It was first studied by James Prescott Joule in 1841. Joule immersed a length of wire… …   Wikipedia

  • Joule — This article is about the unit of energy. For other uses, see Joule (disambiguation). Joule Unit system: SI derived unit Unit of... Energy Symbol: J Named after: James Prescott Joule …   Wikipedia

  • Second Bloody Valentine War — The Second Bloody Valentine War is a fictional conflict that occurs within the Cosmic Era (CE) timeline of the Gundam metaseries. This conflict is covered in the anime series, Mobile Suit Gundam SEED Destiny . Although integral to the plot, the… …   Wikipedia

  • Joule (Einheit) — Einheit Norm SI Einheitensystem Einheitenname Joule Einheitenzeichen J Beschriebene Größe(n) Arbeit; Energie; innere Energie …   Deutsch Wikipedia

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