changes.mady.by.user Arthur Aslanyan (Nafta College)
Saved on Jul 12, 2021
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k_f = 1014.24 \cdot {\rm FZI}^2 \cdot \frac{(\phi_f -\phi_{f0})^3}{( 1 - \phi_f+\phi_{f0})^2}
{\rm FZI} = \frac{1}{\sqrt{F_S} \, S_{gV} \, \tau }