8. Centripetal Forces & Gravitation
Newton's Law of Gravity
Problem 6.17
Textbook Question
Textbook Question(II) You are explaining to friends why an astronaut feels weightless orbiting the Earth in a space station, and they respond that they thought gravity was just a lot weaker up there. Convince them that it isn’t so by calculating how much weaker (in %) gravity is 380 km above the Earth’s surface.
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