3. Pluto has a mass of 1.3x1023kg, and a radius of 1.15x10°m. a. Determine the gravitational field strength on the surface of Pluto. b. Determine the gravitational field strength 5.4x10°m from the surface of the planet. If a 2000kg spacecraft is located at the position mentioned in the previous question, how fast would the spacecraft need to travel to orbit Pluto in a circular orbit? c.

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