Created by StemPy LabTreat the Earth as a uniform sphere of radius , with at its surface, and take the gravitational potential to be zero far away. Which of the following statements are correct?
One or more options are correct. Tick all the correct ones: a wrong option costs marks, and a part-right answer earns part of the marks.
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← A small moon goes round a planet in a circular orbit with a period of 32 days. Suppose the moon were suddenly stopped in its orbit. Treating the planet and the moon as points, how long would the moon take to fall into the planet?A satellite moves eastwards in a circular orbit of radius 2R in the plane of the equator, where R = 6400 km is the Earth's radius. Take g = 10 m/s² at the Earth's surface, and the Earth to turn once (eastwards) in 24 h. How often does the satellite pass straight over a given point on the equator? →
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