如图示,下底与贮水器相连的一个贮水圆罐高0.6 m,半径R=0.3 m,上面有盖,内贮满水,试求当罐以240 r/min的角速度旋转时,罐顶最大压强处的压强及顶盖所受的作用力分别为（）https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/b2485f58b7024c4f87bb2a75a7eb15cc.png
举一反三
- 一压缩空气罐与一文丘里引射管连接,d1 ,d2 ,h 均为已知,则气罐内压强p0为（）时才能将B池中水抽出。https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/0bdf1aded40f45a095111ae069a51d25.png
- 有倒置圆锥容器,盛满清水后,以n=150 r/min旋转,如图所示,若容器高H=0.5 m,开口直径D=0.4 m,容器中还剩下多少体积的水( )https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/8a45add4d3e248a297141818e1f7393e.png
- 质点作半径为R的变速率圆周运动，v为任一时刻质点的速率，则该质点的加速度大小是（ ）。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/74c6af56cdc24e1894b25b6fceeed83b.png"> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/5d036be82d8a49198abb6ac68bd124ca.png"> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/fe33a5eff74449b5b0bbe7d471ee4337.png"> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/aa79d26e5b344c8cb2a31f94ea310de9.png">
- 一洒水车以等加速度a=0.9807 m/s2在平地行驶，水车静止时，B点的位置为x=1.5 m，水深h=1 m，运动后该点的水静压强为（）https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/a6d6a260dade47a98949dc5c8785e1a9.png
- 设水的体积压缩系数。当水所受压强等温增加时，其密度增加（）。https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/d12becea1153475b83fc823672a2276d.png