Physical Constants

Avogadro's Number N	6.023 * 10²³ mol^-1 ^{press above}
Universal Gas Constant R	8.31 J K^-1 per molecule ^{press above}
1 AMU	1.6 * 10 ^-27 kg ^{press above}
Binding energy per nucleon	931 Mev ^{press above}
Rest Mass of proton m_p	1.6 * 10 ^-27kg ^{press above}
Rest Mass of electron m_e	9 * 10 ^-31 kg ^{press above}
Rest Mass of Neutron m_n	1.6749286*10^-27 kg ^{press above}
Rest Mass of proton in amu m_p	1.6 * 10 ^-27kg ^{press above}
Rest Mass of electron in amu m_e	9 * 10 ^-31 kg ^{press above}
Rest Mass of Neutron in amu m_n	1.008664904 amu ^{press above}
Rest Mass of Neutron in Mev m_n	939.56541 Mev ^{press above}
Rest Mass of proton in Mev m_p	938.27231Mev ^{press above}
Rest Mass of electron in Mev m_e	0.5109906 Mev ^{press above}
Mean Life of Free Neutron τ_n	881.5 Sec ^{press above}

Mass of ₁H¹	1.00782505 amu ^{press above}
Mass of ₁H²	1.0070508885 amu ^{press above}
Mass of ₁H³	1.0053497592 amu ^{press above}
Mass of ₂He³	1.0053431064 amu ^{press above}
Mass of ₂He⁴	1.0006508135 amu ^{press above}
Charge of electron e	1.6 * 10^-19coloumb ^{press above}
Rydberg's constant R	1.09678 * 10⁷ m ^-1 ^{press above}
1 eV	1.6 * 10 ^-19 Joule ^{press above}
1 kilo-watt-hour KWH	36 * 10⁵ Joules ^{press above}
1 Horse Power H.P	746 watts ^{press above}
Universal Gravitational Constant G	6.67 * 10^-11 Nm ² kg^-2 ^{press above}
Earth's radius R	6.38*10⁶ m ^{press above}
Escape velocity from earth Ve	11.2 kms/sec ^{press above}
Acceleration due to gravity g	9.98m/sec² ^{press above}
Planck's constant h	6.62*10^-34joule second ^{press above}
Boltzman's constant k	1.38*10^-23jk^-1per molecule ^{press above}
Mechanical equivalent of Heat J	4.18 joules/cal ^{press above}
Permittivity of free space €o	8.86*10^-12C²N^-1m^-2 ^{press above}
Permeability of free space µo	4¶10^-7W/Amp.m ^{press above}
Velocity of light in vacuum c	3*10⁸m/sec ^{press above}
1 light year	9.46*10¹²km ^{press above}
1 parsec	3.26 light years ^{press above}