Saturday, June 24, 2017

dimensional analysis - Functional derivative and units


The both sides of below equation don't give the same units, e.g. δδϕ(τ)baϕ(τ)dτ=1.

where $a<\tau



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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 \...