Planet Zero has a mass of 4.0 × 10^23 kg and a radius of 2.0 × 10^6 m. A 10-kg space probe is launched vertically from the surface of Zero with an initial kinetic energy of 8.0 × 10^7 J. What maximum distance from the center of Zero is achieved by the probe?
a. 3.2 × 10^6 m
b. 4.0 × 10^6 m
c. 6.0 × 10^6 m
d. 5.0 × 10^6 m
e. 2.5 × 10^6 m
D
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