Physics Assignment

Gravitational Potential Energy

Gravitational Potential Energy We discussed the gravitational potential energy of a particle-Earth system. We were careful to keep the particle near Earth’s surface, so that we could regard the gravitational force as constant. We then chose some reference configuration of the system as having a  gravitational. Here, we broaden our view and consider the gravitational potential energy U …

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Sample Problem

Sample Problem In Pole 10 Pole, an early science fiction story by George Griffith. three explorers attempt to travel by capsule through a naturally formed (and, of course, fictional) tunnel directly from the south pole to the north pole . According to the story, as the capsule approaches Earth’s center, the gravitational force on the explorers becomes alarmingly. SOLUTION: Newton’s …

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Sample Problem

Sample Problem (a) An astronaut whose height h is 1.70 m floats feet down in an orbiting space shuttle. SOLUTION: One Key Idea here is that we can approximate Earth as a uniform sphere of mass M. (b) If the astronaut is now feet down at the same orbital radius r of 6.77 X 106 m about a …

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Sample Problem

Sample Problem Shows an arrangement of three particles, particle I having mass m, = 6.0 kg and particles 2 and 3 having mass nl2 = nil = 4.0 kg, and with distance a = 2.0 cm. SOLUTION: One Key Idea here is that. because we have particles, the magnitude of the gravitational force on particle I due to …

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