轻绳拴一小球在竖直平面内做圆周运动,通过最左最右两点时的向心力仅由绳的拉力提供吗
人气：497 ℃ 时间：2020-01-27 07:02:31
解答
对的
推荐
猜你喜欢
- 有don't do sth instead of doing的用法吗,怎么翻译?
- A successful team beats with one heart是什么意思
- he often___(relax) half a day
- 用作图法求直线斜率时,必须采用什么方法?
- Edward Smith is _____old.He works in a bank.
- 连词成句 threw,Li,Ming,the,ball,another,boy,to
- Lily doesn't want to buy__same present__Lucy did填空
- 麻烦您了,您帮我看看这道题呗 we see things by our eyes对么?为什么
