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Constants
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Physics
Showing results
161
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170
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294
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17
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30
Astronomical
Electricity
ElectroMagnetism
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Gravitational
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Physical-Chemical
Subatomic Particles
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NAME
SYMBOL
VALUE
Mass Ratio, Neutron-Muon
m
n
/m
µ
8.89248478(27)
Mass Ratio, Neutron-Proton
m
n
/m
p
1.00137841887(58)
Mass Ratio, Neutron-Tau
m
n
/m
τ
0.528722(86)
Mass Ratio, Proton-Electron
m
p
/m
e
1836.1526675(39)
Mass Ratio, Proton-Muon
m
p
/m
µ
8.88024408(27)
Mass Ratio, Proton-Neutron
m
p
/m
n
0.99862347855(58)
Mass Ratio, Proton-Tau
m
p
/m
τ
0.527994(86)
Mass Ratio, Tau-Electron
m
τ
/m
e
3.47760(57)
Mass Ratio, Tau-Muon
m
τ
/m
µ
16.8188(27)
Mass Ratio, Tau-Neutron
m
τ
/m
n
1.89135(31)
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