問題詳情

11. In a binary star system, Star A, which has triple the mass of Star B, orbits their common center of mass in circular patbs. Without external forces, what is the relationship between their orbital periods according to Newton's law of universal gravitation?
(A) Star A's period is 1/

 of Star B's.
(B) Star A's period is the same as Star B's.
(C) Star A's period is

times Star B's.
(D) Star A's period is twice Star B's.
(E) Star A's period is half of Star B's.

參考答案

答案:99

統計:A:0,B:0,C:0,D:0,E:0

難度:計算中