The mass of mars is 640x1023 kg and its radius is 337x106 m, Ask an Expert

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The mass of Mars is 640x10^23 kg and its radius is 337x10^6 m. (G =6.67*10^-11 Nm^2/kg^2)

a) Calculate the acceleration of gravity at the surface of Mars.

b) Calculate the orbital period for a surface-skimming orbit.

C) Calculate the escape velocity for Mars.

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