Friday, June 12, 2015

classical mechanics - Why does the energy of the mechanical wave depend on frequency but the EM wave does not?


Why does the energy of the mechanical wave depend on frequency but the EM wave does not? Are there any implications?




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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 \...