If Two Planets,A and B,have the Same Value of G

question 39

Multiple Choice

If two planets,A and B,have the same value of g on their surfaces,which of the following scenarios cannot be true? (M_A and M_B are their masses and R_A and R_B are their radii.)

• A)M_A = 4 M_B and R_A = 2 R_B
• B)M_A = 9 M_B and R_A = 3 R_B
• C)M_A = 0.25 M_B and R_A = 0.5 R_B
• D)M_A = M_B and R_A = R_B
• E)M_A = 4 M_B and R_A = 3 R_B

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