Question
A space probe of mass 3.9 x 103 kg is orbiting a star of mass 3.6 x 1030 kg  in a circular orbit at a distance of 1.7 x 1011 m from its center.  Calculate the minimum energy, in units of 109 J, required to transfer the probe to a circular orbit 5.5 x 1011 m from the star.  Use G = 6.7 x 10-11 N m2/ kg2.

(Please answer to the fourth decimal place - i.e 14.3225)

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