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Nobel Laureates By Country and Prize |
Метки: Nobel Laureates By Country and Prize Country Prize Nobel |
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List of Physical Constants |
List of Physical Constants | |||||
Name | Symbol | Value | |||
Universal gravitational constant | G | 6.67 × 10–11 N•m2/kg2 | |||
Acceleration due to gravity | g | 9.81 m/s2 | |||
Speed of light in a vacuum | c | 3.00 × 108 m/s | |||
Speed of sound in air at STP | 3.31 | × 102 m/s | |||
Mass of Earth | 5.98 | × 1024 kg | |||
Mass of the Moon | 7.35 | × 1022 kg | |||
Mean radius of Earth | 6.37 | × 106 m | |||
Mean radius of the Moon | 1.74 | × 106 m | |||
Mean distance—Earth to the Moon | 3.84 | × 108 m | |||
Mean distance—Earth to the Sun | 1.50 | × 1011 m | |||
Electrostatic constant | k | 8.99 × 109 N•m2/C2 | |||
1 elementary charge | e | 1.60 × 10–19 C | |||
1 coulomb (C) | 6.25 | × 1018 elementary charges | |||
1 electronvolt (eV) | 1.60 | × 10–19 J | |||
Planck’s constant | h | 6.63 × 10–34 J•s | |||
1 universal mass unit (u) | 9.31 | × 102 MeV | |||
Rest mass of the electron | me | 9.11 × 10–31 kg | |||
Rest mass of the proton | mp | 1.67 | × 10-27kg | ||
Rest mass of the neutron | mn | 1.67 × 10–27 kg |
Метки: List of Physical Constants |
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