NAME
SYMBOL
VALUE
Free Neutron, Half-life of
T
650 s
Gas Constant
R
8.314 J K-1 mol-1
Glass, Thermal Conductivity of
kg
1.0 W m-1 K-1
Half-life of Carbon-14
T
5570 years
Half-life of Free Neutron
T
650 s
Hydrogen Rydberg Number
RH
1.0967758 × 107 m-1
Light, Speed of (in a Vacuum)
c
299792458 m s-1
Linear Expansivity of Copper
α
1.7 × 10-5 K-1
Linear Expansivity of Steel
α
1.2 × 10-5 K-1
Million Electronvolts
MeV
1.6 × 10-13 J