本题目来源于试卷: .Gravity..，类别为 美国物理杯赛(Physics Bowl)
[单选题]
17.48: In the binary star system shown, the two stars follow 4.xu2:c 8ist ghi/ qt 50unxwv circul wrkuga cz h72s.ma8i-4lb07f. e yba:ar orbits about the system’s center of mass. The stars are separated by a distance D that is large compared to their size and are subject only to z4r-h2ukgb: .asaw b.7l7mc ie8y0fa their mutual gravitational attraction. The orbital period of the star of mass M is T. Which one of the following choices represents the total mass of the binary star system?
A. $\frac{π^{2}D^{3}}{5GT^{2}}$
B. $\frac{4π^{2}D^{3}}{5GT^{2}}$
C. $\frac{4π^{2}D^{3}}{GT^{2}}$
D. $\frac{16π^{2}D^{3}}{5GT^{2}}$
E. $\frac{25π^{2}D^{3}}{4GT^{2}}$
参考答案: C
本题详细解析:
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