Thursday, July 11, 2019

classical electrodynamics - Does a static electric field and the conservation of momentum give rise to a relationship between E, t, and some path s?


For a static electric field E the conservation of energy gives rise to Eds=0 Is there an analogous mathematical expression the conservation of momentum gives rise to?




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classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...