皮皮学，免费搜题
登录
搜题
【多选题】
如图所示，质量为m，半径为r，在驱动力偶M作用下绕圆心轴O加速转动，其对轴O的转动惯量为J，某时刻角速度为ω，则有： 【图片】A.
圆轮对轴O的动量矩恒等于零；
B.
圆轮的角加速度等于：M/J；
C.
圆轮对轴O的转动惯量 J 等于mr平方除以2；
D.
圆轮对轴的动量矩等于它对轴上任意一点的动量矩在轴上的投影；
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】The students attend the ___________ (apprentice) after school and during summer programs.
【单选题】About _____ of the students attend the meeting.
A.
one three
B.
first three
C.
first third
D.
one thired
【简答题】However, as we grew up, we lost that ___________(child) innocence.
【简答题】The students attend the __________( apprentice) after school and during summer.
【单选题】About —— of the students attend the meeting.
A.
two three
B.
two thirds
C.
two. third
【单选题】It has been announced recently that all the schools ________ not have the students attend school if the students have high temperatures. [ ]
A.
need
B.
shall
C.
could
D.
ought to
【单选题】---By the way, how many of us can attend the meeting? ---The number of the students to attend the meeting _____ fifty.
A.
is
B.
has
C.
are
D.
have
相关题目：
参考解析：
知识点：
题目纠错 0
发布
