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Chapter 13: Q. 11 (page 353)
Saturn’s moon Titan has a mass of and a radius of What is the free-fall acceleration on Titan?
The free-fall acceleration on Titan is
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A new planet is discovered orbiting the star Vega in a circular orbit. The planet takes earth years to complete one orbit around the star. Vega’s mass is times the sun’s mass. What is the radius of the planet’s orbit? Give your answer as a multiple of the radius of the earth’s orbit.
In Problems 64 through 66 you are given the equation(s) used to solve a problem. For each of these, you are to
a. Write a realistic problem for which this is the correct equation(s).
b. Draw a pictorial representation.
c. Finish the solution of the problem.
The two stars in a binary star system have masses and . They are separated by . What are
a. The system’s rotation period, in years?
b. The speed of each star?
NASA would like to place a satellite in orbit around the moon such that the satellite always remains in the same position over the lunar surface. What is the satellite’s altitude?
A satellite orbits the sun with a period of What is the radius of its orbit?
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