Thursday, July 31, 2014

quantum mechanics - Determine $p_x$ from $[x,p_x]=ihbar $




With $[x,p_x]=i\hbar $, how to determine the form of the operator $p_x$?




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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 \...