Two Planets Have the Same Surface Gravity, but Planet B $\sqrt { 2 }$

question 51

Multiple Choice

Two planets have the same surface gravity, but planet B has twice the radius of planet A. If planet A has mass m, what is the mass of planet B?

• A) m/ \(\sqrt { 2 }\)
• B) m
• C) m \(\sqrt { 2 }\)
• D) 4m
• E) m/4

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