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Q5. What is the change in gravitational potential energy of a 74.5-kg astronaut, lifted from Earth's surface into a circular orbit of altitude 5.40 x

Q5. What is the change in gravitational potential energy of a 74.5-kg astronaut, lifted from Earth's surface into a circular orbit of altitude 5.40 x 102 km? Assume G = 6.67 x 10-11 N.m2/kg2 ME= 5.98 x 1024 kg IE 6.38 x 10 m

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