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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Force field (physics) ： ウィキペディア英語版 Force field (physics) In physics a force field is a vector field that describes a non-contact force acting on a particle at various positions in space. Specifically, a force field is a vector field $\backslash vec(\backslash vec)$, where $\backslash vec$ is the force that a particle would feel if it were at the point $\backslash vec$.〔(Mathematical methods in chemical engineering, by V. G. Jenson and G. V. Jeffreys, p211 )〕 ==Examples of force fields== *In Newtonian gravity, a particle of mass ''M'' creates a gravitational field $\backslash vec=\backslash frac\backslash hat$, where the radial unit vector $\backslash hat$ points away from the particle. The gravitational force experienced by a particle of mass ''m'' is given by $\backslash vec\; =\; m\; \backslash vec$. 〔(Vector calculus, by Marsden and Tromba, p288 )〕〔(Engineering mechanics, by Kumar, p104 )〕 *An electric field $\backslash vec$ is a vector field. It exerts a force on a point charge ''q'' given by $\backslash vec\; =\; q\backslash vec$. 〔(Calculus: Early Transcendental Functions, by Larson, Hostetler, Edwards, p1055 )〕 *a gravitational force field is a model used to explain the influence that a massive body extends into the space around itself, producing a force on another massive body.,〔, (Chapter 7, page 181 ) 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Force field (physics)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.