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 sy ) 5a3 xri f2)mztcr0kbstem b:ojuzw l *;:9tlipmbn i*09v shown, the two stars follow circular 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 their mutual gravitational attraction. T 9*:iujmwo:0zbtb * ; nlipl9vhe 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:
暂无
| 
