Formula Symbols - N
Mathematics and Management Rules and Symbols
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"N" Formula SymbolsA - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z | ||||||
|---|---|---|---|---|---|---|
| Symbol | Greek Symbol | Definition | English | Metric | SI | Value |
| \(ln\) | - | natural logarithm | - | - | - | - |
| \(w_n\) | - | natural water content | dimensionless | dimensionless | 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 | \(\large{\frac{lbf}{in^2}}\) | \(Pa\) | \(kg-m^{-1}-s^{-2}\) | - |
| \(NR\) | - | 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 | \(\large{\frac{lbf}{in^2}}\) | \(Pa\) | \(kg-m^{-1}-s^{-2}\) | - |
| \(\sigma_{\theta} \) | sigma | normal stress in any oblique plane | \(\large{\frac{lbf}{in^2}}\) | \(Pa\) | \(kg-m^{-1}-s^{-2}\) | - |
| \(\Theta\) | Theta | normalized water content | dimensionless | dimensionless | 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 | dimensionless | dimensionless | - |
| \(n\), \(n_a\) | - | number of active coils | dimensionless | dimensionless | 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 | dimensionless | 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 | dimensionless | dimensionless | - |
| \(N\) | - | Nyquist"s number | - | - | - | - |
| Symbol | Greek Symbol | Definition | English | Metric | SI | Value |
