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Derived Quantities and SI units

Derived Quantity	Unit	Symbol	Base unit combination
Force	newton	N	kg m s^-2
Pressure	pascal	Pa	kg m^-1 s^-2
Energy	joule	J	kg m² s^-2
Power	watt	W	kg m² s^-3
Electric Charge	coulomb	C	A s
Electric Potential	volt	V	kg m² s^-3 A^-1
Electrical Resistance	ohm	W	kg m² s^-3 A^-2
Electrical Conductance	siemens	S	kg^-1 m^-2 s³ A²
Capacitance	farad	F	kg^-1 m^-2 s⁴ A²
Mag. Flux Density	tesla	T	kg s^-2 A^-1
Activity	bequerel	Bq	s^-1

PHYSICAL CONSTANTS

Constant	Symbol	Value
acceleration due to gravity	g	9.81 m s^-2
Gravatational Constant	G	6.673*10^-11Nm²kg^-2
Avogadro constant	N_A	6.023*10²³mol^-1
Ice point	T_ice	273.15K
Gas constant	R	8.314JK^-1mol^-1
Boltzmann constant	k	1.381*10^-23JK^-1
Stefan constant		5.670*10^-8Wm^-2K^-4
Rydberg constant	R_hc	1.097*10⁷m^-1
Planck constant	h	6.626*10^-34Js
Speed of light in vaccum	c	2.998*10⁸ms^-1
Charge of proton	e	1.602*10^-19C
Mass of electron	m_e	9.109*10^-31kg
Rest energy of electron	E_e	0.511MeV
One atomic mass unit	u	1.66*10^-27kg
Atomic mass unit energy equivalent		931.5MeV
Electric constant	0	8.854*10^-12Fm^-1
Magnetic constant	₀	4?*10^-7Hm^-1
Bohr magneton	_B	9.274*10^-24Am²
Nuclear magneton	_N	5.051*10^-27Am²
Fine structure constant		7.297*10^-3
Compton wavelength of electron	_c	2.426*10^-12m
Bohr radius	a₀	5.2918*10^-11m
Angstrom	Anot	10^-10m
torr	torr	133.32Pa