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5 Cards in this Set

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Gravitational constant 'G'

G = 6.67x10^-11 N-m^2/kg^2


(in F = G x mM/r^2)

Electromagnetic force constant (k)

K = 9.0 x 10^9 N-m^2/C^2

Average gravitational acceleration

9.8 m/s^2

Radius of earth

~6400 km (~6371 km to be more precise)

Mass of earth

~6 x 10^24 kgs (~5.972 x 10^24 kgs to be more precise)