Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 4, Problem 45Q
To determine
Whether the real escape speed for the cannonball will be greater than or less than 11.2 km/s, if the effect of the Earth’s atmosphere is considered and provide reason for the answer.
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Calculate the escape velocity to an orbit of 243 km height from a planet with the radius of 2000 km and the density of 3400 kg⋅m-³. Give your answer in
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The dwarf planet Haumea has a mass 0.0007 times that of the Earth and a diameter on average 0.11 times that of the Earth. What is the escape velocity of Haumea (in m/s)? (type in the numerical answer and unit, e.g. 10m/s.)
We talk of 11.2 km/s as the escape speed from Earth. Is it possible to escape from Earth at half this speed? At one-quarter this speed? If so, how?
Chapter 4 Solutions
Universe
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