問題詳情
6. The key concepts behind Kepler's 2nd law for planetary motion (the line joining the sun toa planet sweeps out equal areas in equal times) include
(A)energy conser ervation,
(B)momentum conservation,
(C)angular momentum conservation,
(D) both (a)(b),
(E) both (a)(c).
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增