Physics
a chill guy- Explain how the motion of an apple falling to the ground is related to the orbit of the Moon around the Earth.
- Calculate g for astronauts who orbit the earth 200 km above the surface, given that the mass of the Earth is 5.98x1024 kg and the radius of the Earth is 6.38 x 106 m. (answer ~9.3 m/s2)
- Why does a person in free fall experience weightlessness? Explain.
- State each of Kepler's Laws.
- Given the mass of Mars is 6.4 x 1023 kg and the radius of Mars is 3390 km, find the weight of an 65 kg person on Mars in lbs (1 N = 0.225 lbs). (answer ~54 lbs).
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