You are in a spacecraft orbiting Venus. The mass of Venus is 4.87E+24 kg, and its radius is 6.05E+3 km. a) The orbital velocity at the surface of the planet is 7.32E+3 m/s. What is the escape velocity from the surface? b) What is the circular orbital velocity at the height of one-half a Venus radius above the surface? c) At a height of 24 radii above the surface of Venus, what is the circular orbital velocity? d) What is the escape velocity at this height?

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