Irodov – Problems in General Physics

10. Astronomical Data

Body Mean radius, m Mass, kg Mean density, 103 kg/m 3 Period of rotation about axis, days

Sun 6.95.10 2 1.97.10 20 1.41 25.4

Earth 6.37.10 6 5.96.10 24 5.52 1.00

Moon 1.74.10 6 7.30.10 22 3.30 27.3

Planets of solar system Mean Sundie stanc, 10 6 km from the Siderial period, years

Mercury 57.87 0.241

Venus 108.14 0.615

Earth 149.50 1.000

Mars 227.79 1.881

Jupiter 777.8 11.862

Saturn 1426.1 29.458

Uranus 2867.7 84.013

Neptune^4494 164.79

11. Density of Substances

Solids p, g/cm 2 Liquids I P. g/cm^3

Diamond 3.5 Benzene 0.88

Aluminium 2.7 Water 1.00

Tungsten 19.1 Glycerin 1.26

Graphite 1.6 Castor oil 0.90

Iron (steel) 7.8 Kerosene 0.80

Gold 19.3 Mercury 13.6

Cadmium 8.65 Alcohol 0.79

Cobalt 8.9 Heavy water 1.1

Ice 0.916 Ether 0.72

Copper 8.9 Gases (under standard condi- p, kg/ra^3

Molibdenum 10.2 tions)

Sodium 0.97 Nitrogen 1.25

Nickel 8.9 Ammonia 0.77

Tin 7.4 Hydrogen 0.09

Platinum 21.5 Air 1.293

Cork 0.20 Oxygen 1.43

Lead 11.3 Methane 0.72

Silver 10.5 Carbon dioxide 1.98

Titanium 4.5 Chlorine 3.21

Uranium 19.0

Porcelain 2.3

Zinc 7.0

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