Question: (a) What is the gravitational force on a 65.7-kg space shuttle astronaut orbiting the earth 427 km above the surface of the earth? (b) Explain

(a) What is the gravitational force on a 65.7-kg space shuttle astronaut orbiting the earth 427 km above the surface of the earth?
(b) Explain why astronauts orbiting the earth experience weightlessness even though the earth continually applies a force on their bodies.

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