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At a certain instant, the earth, the moon, and a stationary 1290 kg spacecraft lie at...

At a certain instant, the earth, the moon, and a stationary 1290 kg spacecraft lie at the vertices of an equilateral triangle whose sides are 3.84×10^5 km in length.

A. Find the magnitude of the net gravitational force exerted on the spacecraft by the earth and moon.

___ N

B. Find the direction of the net gravitational force exerted on the spacecraft by the earth and moon. State the direction as an angle measured from a line connecting the earth and the spacecraft.

___ degrees

C. What is the minimum amount of work that you would have to do to move the spacecraft to a point far from the earth and moon? You can ignore any gravitational effects due to the other planets or the sun.

___ J

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