Asked by Kevin

Many people mistakenly believe that the astronauts that orbit the Earth are "above gravity". Calculate g for space-shuttle territory, 206 kilometers above the Earth's surface. Earth's mass is 6e24 kg, and its radius is 6.38e6 m (6380 km). Your answer is what percentage of 9.8 m/s^2?
Answered by Chanz
Again g = GM/r^2 where r is (6380+206)e3
Answered by Peter
Plane A has radius of 6000km and a mass of 6E24kg. The plane B has a radius 1500km and a mass of 1.5E22kg. Which of the planetsame is more likely to have a large metal core?
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