Multiple Choice
The escape velocity at the surface of Earth is approximately 8 km/s. What is the mass, in units of Earth's mass, of a planet with twice the radius of Earth for which the escape speed is twice that for Earth?
A) 2
B) 4
C) 8
D) 1/2
E) 1/4
Correct Answer:
Verified
Correct Answer:
Verified
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