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Constants > Physics

Showing results 31 to 40 of 294, on page 4 of 30
Astronomical
Electricity
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Physical-Chemical
Subatomic Particles
Universal
NAME SYMBOL VALUE
Constant, Gravitational G 6.673(10) × 10-11 N m2 kg-2
Constant, Inverse Fine Structure α 137.03599976(50) × 10-3 
Constant, Loschmidt n0 2.6867775(47) × 1025 m-3
Constant, Loschmidt (T=273.15K, p=100kPa) Vm 22.710981(40) × 10-3 m3 mol-1
Constant, Magnetic µ0 4π × 10-7 N A-2
12.566370614 × 10-7 N A-2
Constant, Planck (h) h 6.62606876(52) × 10-34 J s
4.13566727(16) × 10-15 eV s
Constant, Sackur-Tetrode S0/R -1.1517048(44) 
-1.1648678(44) 
Constant, Solar 1400 W m-2
Constant, Stefan-Boltzmann (π2/60)k43c2 σ 5.670400(40) × 10-8 W m-2 K-4
Constant, von Klitzing RK 25812.807572(95) Ω
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