Multiple Choice
Planet A has nine times the mass of planet B,but they have equal radii.How fast would you have to launch a rocket from planet A for it to escape the pull of its gravity,if the corresponding speed for planet A is 10 m/s?
A) 3 m/s
B) 10 m/s
C) 30 m/s
D) 90 m/s
Correct Answer:
Verified
Correct Answer:
Verified
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