9. Two identical satellites, A and B, are circling around Earth in circular orbits. Given the orbital radius of A is twice that of B, what is the ratio of the speed of A to the speed of B?
(A) 1
(B) √2
(C) 1/√2
(D) 2
(E) 1/2
答案:登入後查看
統計: 尚無統計資料
統計: 尚無統計資料