Formula Symbols - N

Written by Jerry Ratzlaff on . Posted in Nomenclature & Symbols for Engineering, Mathematics, and Science

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Formula Symbols

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N

SymbolGreek SymbolDefinitionEnglishMetricSIValue
\(ln\) - natural logarithm - - -  -
\(w_n\) - natural water content dimensionless -
\(T_n\) - Neel temperature - - -  -
\(F_n\) - net force \(lbf\) \(N\) \(kg-m-s^{-2}\)  -
\(NPSH\) - net positive suction head \(ft\) \(m\) \(m\)  -
\(NPSHA\) - net positive suction head available \(ft\) \(m\) \(m\)  -
\(NPSHR\) - net positive suction head required \(ft\) \(m\) \(m\) -
\(E_v\) - neutron energy - - - -
\(F_n\) - net positive or negative force \(lbf\) \(N\) \(kg-m-s^{-2}\) -
\(NPSH_r\) - net positive suction head required - - - -
\(\tau_n\) tau net torque \(lbf-ft\) \(N-m\) \(kg-m^2-s^{-2}\) -
\(m_n\) - neutron mass \(lbm\) \(kg\) \(kg\) \(1.674\;927\;498\;04(95)\;x\;10^{-27}\) \(kg\)
\(N\) - neutron number - - - -
\(G\) - Newtonian constant of gravitation \(\large{\frac{lbf-ft^2}{lbm^2}}\)  \(\large{\frac{N - m^2}{kg^2}}\)  \(N-m^{2}-kg^{-2}\) \(6.674\;30\;x\;10^{-11}\) \(\large{\frac{N - m^2}{kg^2}}\) 
- - Newton's law of cooling - - - -
\( F_g \) - Newton's law of universal gravitation  \(\large{ \frac{ft}{sec^2} }\)  \(\large{ \frac{m}{s^2} }\) \(m-s^{-2}\) -
\(F\) - Newton's second law \(lbf\) \(N\) \(kg-m-s^{-2}\) -
\(\tau\) tau Newton's second law for rotation \(lbf\) \(N\) \(kg-m-s^{-2}\) -
\(F\) - Newton's third law \(lbf\) \(N\) \(kg-m-s^{-2}\) -
\(\tau\) tau Newton's law of viscosity \(\large{\frac{lbf}{in^2}}\) \(MPa\) \(N-mm^{-2}\) -
\(NR\) - noise reduction \(dB\) \(dB\) - -
\(n\) - non-Newtonian viscosity \(\large{\frac{lbf-sec}{ft^2}}\) \(Pa-s\) \(kg-m^{-1}-s^{-1}\) -
\(Q_i\) - normal coordinates - - -  -
\(F_n\) - normal force \(lbf\) \(N\) \(kg-m-s^{-2}\)  -
\(P_n\) - normal load strength capacity for LRFD design - - -  -
\(V_n\) - normal shear strength capacity for LRFD beam design - - -  -
\(\sigma\) sigma normal stress \(\large{\frac{lbf}{in^2}}\) \(MPa\) \(N-mm^{-2}\)  -
\(\sigma_{\theta} \) sigma normal stress in any oblique plane \(\large{\frac{lbf}{in^2}}\) \(MPa\) \(N-mm^{-2}\)  -
\(\Theta\) Theta normalized water content dimensionless -
\(\mu N\) mu nuclear magneton - \(\large{\frac{J}{T}}\) \(J-T^{-1}\)  \(5.050\;783\;699(31)\;x\;10^{-27}\) \(\large{\frac{J}{T}}\)
\(m_n\) - nuclear mass - - -  -
\(I\), \(\;J\) - nuclear spin - - -  -
\(A\) - nucleon number - - -  -
\(N\), \(\;n\), \(\;x\) - number - - -  -
\(n\) - number density dimensionless  -
\(n\), \(n_a\) - number of active coils dimensionless -
\(n\) - number of air changes - - - -
\(N_c\) - number of coils - - -  -
\(N_c\) - number of cycles - - -  -
\(n\) - number of data points in data set number - - - -
\(N\) - number of data sets - - - -
\(N\) - number of elements - - -  -
\(N\) - number of molecules - - -  -
\(n\) - number of moles dimensionless  -
\(N\) - number of particles - - -  -
\(P\) - number of phases - - -  -
\(N\) - number of power strokes per minute - - -  -
\(N_t\), \(\;n\) - number of teeth - - -  -
\(n_t\) - number of total coils - - - -
\(n\) - number of trust joints, nails or bolts - - -  -
\(N\) - number of turns or revolutions - - - -
\(Nu\) - Nusselt number dimensionless  -
\(N\) - Nyquist"s number - - -  -
Symbol Greek Symbol Definition English Metric   Value

 

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