Determine the acceleration of gravity on the surface of Ceres if the radius of the dwarf planet is 1000 km, the mass is 9.4 * 10 ^ 20 kg.

decision
g = GM / R ^ 2 = 6.67 * 10 ^ -11 * 9.4 * 10 ^ 20/10 ^ 12; g = 0.06 (m / s2).

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