Physics

Problem

1. The mass of Planet X is one-tenth that of the Earth, and its diameter is one-half that of the Earth. The acceleration due to gravity at the surface of Planet X is most nearly (A)

2 \mathrm{~m} / \mathrm{s}^{2}

(B)

4 \mathrm{~m} / \mathrm{s}^{2}

(C)

5 \mathrm{~m} / \mathrm{s}^{2}

(D)

7 \mathrm{~m} / \mathrm{s}^{2}

(E)

10 \mathrm{~m} / \mathrm{s}^{2}

(A)

2 \mathrm{~m} / \mathrm{s}^{2}

(B)

4 \mathrm{~m} / \mathrm{s}^{2}

(C)

5 \mathrm{~m} / \mathrm{s}^{2}

(D)

7 \mathrm{~m} / \mathrm{s}^{2}

(E)

10 \mathrm{~m} / \mathrm{s}^{2}

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