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Gravitational constant G ..............6.67x10-11 Nm2 kg-2
Mass of the Earth ..............5.98x1024 kg
Radius of the Earth ..............6.4x106 m
Average density of the Earth ..............5.5 x103 kg m-3
Radius of the Moon's orbit ..............3.84x108 m
Mass of the Moon ..............7.35x1022 kg
Radius of the Moon ..............1.74x106 m
Average density of the Moon .........3.34x103 kg m-3
Mass of the Sun ..............1.99x1030 kg
Radius of the Sun ..............9.65x108 m
Specific heat of water ..............4.186 J kg-1 °C-1
Refractive index of glass ..............1.50
Refractive index of water ..............1.33
Refractive index of
brine ..............1.38
Refractive index of diamond ..............2.41
Wavelength range of visible light.........(4.0 to 6.5)x10-7 m
Wavelength of x-rays ..............~1x10-10 m
Atom spacing in crystals ..............~1x10-10 m
Mass of 22.4 li of air at STP ..........~30 g (mol.
wt. in grams)
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