a) What is the gravitational force that Sgr A* exerts on a person of mass 75 kg? b) Suppose the same person is sitting 1 meter away from a paperclip with a mass of 1 gram. What is the gravitational force that the paperclip exerts on the person? c) Compare the forces from parts a and b. Which is greater?

Principles of Physics: A Calculus-Based Text
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Author:Raymond A. Serway, John W. Jewett
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Chapter11: Gravity, Planetary Orbits, And The Hydrogen Atom
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Problem 7
The supermassive black hole at the center or our galaxy (Sagittarius A*) has a mass equal to
4.3 million Suns (the mass of the sun is 1.99 x 1030 kg). The distance to Sgr A* is 7,940
parsecs, where a parsec is equal to 3.09 × 1016 m.
a) What is the gravitational force that Sgr A* exerts on a person of mass 75 kg?
b) Suppose the same person is sitting 1 meter away from a paperclip with a mass of 1
gram. What is the gravitational force that the paperclip exerts on the person?
c) Compare the forces from parts a and b. Which is greater?
Transcribed Image Text:Problem 7 The supermassive black hole at the center or our galaxy (Sagittarius A*) has a mass equal to 4.3 million Suns (the mass of the sun is 1.99 x 1030 kg). The distance to Sgr A* is 7,940 parsecs, where a parsec is equal to 3.09 × 1016 m. a) What is the gravitational force that Sgr A* exerts on a person of mass 75 kg? b) Suppose the same person is sitting 1 meter away from a paperclip with a mass of 1 gram. What is the gravitational force that the paperclip exerts on the person? c) Compare the forces from parts a and b. Which is greater?
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