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Gg |
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Symbol |
Value |
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 |
g-Factor, Electron |
ge |
-2.002 319 304 3737 ± 0.000 000 000 0082 |
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 |
g-Factor, Muon |
gµ |
-2.002 331 8320 ± 0.000 000 0013 |
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 |
g-Factor, Neutron 2µn/µN |
gn |
-3.826 085 45 ± 000 000 90 |
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 |
g-Factor, Proton 2µp/µN |
gp |
5.585 694 675 ± 0.000 000 057 |
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 |
Gallon, UK |
|
4.546 × 10−3 m3
1.201 US gallon |
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 |
Gallon, US |
|
3.785 × 10−3 m3
0.833 UK gallon |
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Gas Constant |
R |
8.314 J K−1 mol−1
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Gas constant
Molar gas constant |
R |
8.314 472 ± 0.000 015 J mol−1 K −1 |
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 |
Geepound |
|
14.59390294 kg |
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Gill (UK)
Noggin |
|
5 fl oz
0.25 pint
1.420 6525 × 10−4 m3 |
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Gill (US) |
|
0.25 lq pt
7.218 75 in 3
1.182 94 × 10−4 m3 |
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Glass, Refractive Index of |
ng |
1.50
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Glass, Thermal Conductivity of |
kg |
1.0 W m −1 K−1
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Gold Number |
φ |
1.618 033 988 749 894 848 20 |
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Golden Mean
Golden Ratio |
φ |
1.618 033 988 749 894 848 20 |
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Golomb-Dickman Constant |
λ |
0.6243299885 |
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Grade |
|
0.9°, π/200 rad |
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Grain |
|
0.06479 g |
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Grain |
|
1/7000 = 1.428 571 4285× 10−4 lb
6.479 891 × 10−5 kg |
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Gravitation, Newtonian Constant of |
G |
6.673 ± 0.010 × 10−11 m3 kg−1 s−1 |
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G/ħc |
6.707 ± 0.010 × 10−39 (GeV/c2)−2 |
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Gravitational Acceleration, Moon's |
|
1.619 m s−2 |
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Gravitational constant
Constant of gravitation |
G |
6.673 ± 0.010 × 10−11 N m2 kg−2 |
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Gravity, Acceleration due to |
g |
9.806 65 m s−2 |
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32.1740 ft s−2 |
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Gray |
Gy |
1 J kg−1
100 rad |
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Gunter's Chain |
ch |
20.1168 m |
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Gyromagnetic Ratio, Electron |
γe |
1.760 859 794 ± 0.000 000 071 × 1011 s−1 T−1 |
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γe/2π |
28024.9540 ± 0.0011 MHz T−1 |
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Gyromagnetic Ratio, Neutron 2|µn|/ħ |
γn |
1.832 471 88 ± 0.000 000 44 × 108 s−1 T−1 |
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γn/2π |
1.832 471 88 ± 0.000 000 44 × 108 s−1 T−1 |
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Gyromagnetic Ratio, Proton 2µ p/ħ |
γp |
2.675 222 12 ± 0.000 000 11 × 108 s−1 T−1 |
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γp/2π |
42.577 4825 ± 0.000 0018 MHz T−1 |
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Gyromagnetic Ratio, Shielded Proton2µ p/ħ (H2O, sphere, 25°C) |
|
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γ'p |
2.675 153 41 ± 0.000 000 11 × 108 s−1 T−1 |
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γ'p/2π |
42.576 3888 ± 0.000 0018 MHz T−1 |
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Gg | Ii
To the top |
To the bottom
A to B | C to D | E to F | G to I | J to L | M | N to Q | R to T | U to Z
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Hh |
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Symbol |
Value |
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Hafner-Sarnak-McCurley Constant |
|
0.353 236 3719 |
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Half-life of Carbon-14 |
T |
5570 years |
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Half-life of Free Neutron |
T |
650 s
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Hard Square Entropy Constant |
κ |
1.503 0480 82 |
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Hartree Energy |
Eh |
4.359 743 81 ± 0.000 000 34 × 10−18 J |
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27.211 3834 ± 0.000 0011 eV |
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Hand |
|
4 in
0.1016 m |
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Hectare |
ha |
104 m2 |
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Helion mass |
mh |
5.006 411 74 ± 0.000 000 39 × 10−27 kg
3.014 932 234 69 ± 0.000 000 000 86 u
4.499 538 48 ± 0.000 000 35 × 10−10 J/ c2
2808.391 32 ± 0.000 11 MeV/ c2 |
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Helion-electron mass ratio |
mh/me |
5495.885 238 ± 0.000 012 |
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Helion-proton mass ratio |
mh/mp |
2.993 152 658 50 ± 0.000 000 000 93 |
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Horsepower |
|
735.498 75 W |
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Hour |
h |
60 min
3600 s |
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 |
Horizontal Component of Earth's Magnetic Field |
B0 |
1.8 × 10−5 T |
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Hundredweight
Quintal (UK) |
cwt |
112 lb
50.802 345 44 kg |
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Hundredweight, Short (US) |
short |
4.535 × 104 g |
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cwt |
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Hydrogen Rydberg Number |
RH |
1.096 7758 × 107 m−1 |
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Gg | Hh
To the top |
To the bottom
A to B | C to D | E to F | G to I | J to L | M | N to Q | R to T | U to Z
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Ii |
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Symbol |
Value |
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 |
Impedence of Vacuum, Characteristic |
Z0 |
376.730 313 461 Ω |
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Imperial Pint |
|
5.682 × 10−4 m3 |
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 |
Inch |
in |
0.0254 m |
|
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|
" |
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 |
Inch, Cube |
in3 |
1.638 7064 × 10−5 m3 |
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|
cu. in. |
|
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 |
International Nautical Mile |
|
1852 m |
|
| |
|
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 |
Inverse Conductance Quantum |
G0−1 |
12906.403 786 ± 0.000 047 Ω |
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Inverse Fine Structure Constant |
α |
137.035 999 76 ± 0.000 000 50 × 10−3 |
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Gg | Hh | Ii
To the top
A to B | C to D | E to F | G to I | J to L | M | N to Q | R to T | U to Z
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|