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

question 30

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

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