本题目来源于试卷: .Gravity..，类别为 美国物理杯赛(Physics Bowl)
[单选题]
99.21: What happens to the force of gravitational a7jdq3qh 2 f4kecj;b7 at;ydxjuj o*j 05traction between two small objects if the mass of each object is doubled anddj yj*;j0ux5o the distance between their centers is doubled?
A. It is doubled
B. It is quadrupled
C. It is halved
D. It is reduced fourfold
E. It remains the same
参考答案: E
本题详细解析:
暂无
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