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Constants > Physics

Showing results 261 to 270 of 294, on page 27 of 30
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Universal
NAME SYMBOL VALUE
Refractive Index of Water nw 1.33 
Rydberg Constant α2mec/2h R
Rc
Rhc
10973731.568549(83) m-1
3.289841960368(25) × 1015 Hz
2.17987190(17) × 10-18 J
Sackur-Tetrode Constant S0/R -1.1517048(44) 
-1.1648678(44) 
Second Radiation Constant hc/k c2 1.4387752(25) × 10-2 m K
Shielded Proton Gyromagnetic Ratio 2µp/ħ (H2O, sphere, 25°C) γ'p
γ'p/2π
2.67515341(11) × 108 s-1 T-1
42.5763888(18) MHz T-1
Shielded Proton Magnetic Moment (H2O, sphere, 25°C) µ'p
µ'pB
µ'pN
1.410570399(59) × 10-26 J T-1
1.520993132(16) × 10-3 
2.792775597(31) 
Solar Constant 1400 W m-2
Spectral Radiance, First Radiation Constant for 2hc2 c1L 1.191042722(93) × 10-16 W m2 sr-1
Stefan-Boltzmann Constant (π2/60)k43c2 σ 5.670400(40) × 10-8 W m-2 K-4
Sun's Energy Production 3.90 × 1026 W
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