Faradys_Constant 9.652E7 coul_per_kgm_per_mole energy in whoel numbers h*v = photons 1sec =9,192,631,700 +/-20 cesiium cycles 1meter =1,650,763.73 wavelengths orange_red KR-86 gravity =32.1749 ft/sec^2 = 9.807Newtons cal = 1gam water 14.5c to 15.5C 1BTU =1lb water 1F = 778.26ft-lb =1055joules 1hp =2545 BtU/hr =550ft*lb/sec 1KW =3412BTU/hr Tesla =weber/m^2 =B =magnetic flux density Farad = coul/volt 1weber =1volt*sec = joule/amp = magnetic flux 1guass =1E-4weber/meter^2 henry = ohm_sec = webers/Amp volt=joule/coul amp = coul/sec 1joule = .239 cal = 1Newton*meter 1ft*lb = 1.35joules 1cal =4.184joules 1mile = 5280ft 1liter = 1000cc 4quart=1gallon =3.785litters 1tsp =5mlitter 1tbsp = 15mlitter 1quart = .96litter 1fuid ounce =1/16 pint 1cup =1/2pint=1/4quart=.24liter 1Newton = kgm*m/sec^2 permittivity =e = F/meter permeabilty =u =Henery/meter 1mBar =milliBar = 100.0 pascals mmHg = 133.3pacals 1torr =1mmHg 1pascal = N/m^2 fc = footcandel =10.76lux fl = footlamerts =3.426candeles perm^2 red=.7um yel.6um viol .45u R_gas_constant =8.314joule_per_mole_per_K Volume_idea_gas = 22.415liters_per_mole Absolute_zero= -273.15C C=2.9979E8m/sec u_0 = 4piE-7H/m e_0 =(1/36pi)E9F/m ev =1.60E-12erg = 1.6E-19 joules 1erg = gm*cm^2/sec^2 1lbmass = .45359Kgm 1amu = 1.6597510E-24grams 1joule = kg*m^2/sec^2 Na =6.023E23 h= 6.625E-34joule_sec me = 9.109E-31kg mass hydrogen = 1.008145amu mass proton = 1.007595amu mass neutron = 1.008989amu mass electon = 0.0005488amu mass hydrogen = 1.008145amu mass hydrogen = 1.008145amu gravity =9.807m/sec^2 RF c = speed of light = 1/sqrt(e_0*u_0) =3E+8m/sec Z = impedance space = sqrt(u_0/e_0) =377ohms e_o_F_per_meter = 1E-9/(36*Pi) u_o_H_per_meter = 4*pi*1E-7 avogado 6.02472E23mole/gm_mole Gas P*V=R*T a particle has average KT/2 joules of thermal energy per degree freedom perfect gas (1/2)*mass*Velocity_thermal^2 =(3/2)*K*T Entropy delta_S =Q/T neutrons_half_life = 12minutes Heisemberg principle delta_X*delta_p <= h Value l letter 0 s sharp 1 p principle 2 d diffuse 3 f fundamental Quantum number n total energy 1,2,.. l angular momentum 0,1,2,...n-1 mi perpendic Ang Mom -l,..0,..+l ms spin +1/2,-1/2 1Phon = 2E-5 N/m^2 at 1KHz light bulb = 22lumens/watt