Multiple Choice
You throw a baseball horizontally while on the surface of a small, spherical asteroid of mass 7×1016 kg and diameter of 22km. What is the minimum speed so that it just barely goes around the asteroid without hitting anything?
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Satellite Motion: Speed & Period
Multiple Choice
Suppose that you used some geometry and kinematics to estimate that the Earth goes around the Sun with an orbital speed of approximately 30,000 m/s (60,000 mph), and that the Sun is approximately 150 million kilometers away from the Earth. Use this information to estimate the mass of the Sun.
A
1.42×1015kg
B
2.02×1029kg
C
2.02×1030kg
D
1.42×1017kg
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