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
举一反三
- 下面螺纹画法正确的有（ ） A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/154170f305f9495183d6eadbbfbc7526.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/5c82cb80164d4bff91f00d2433c71f8f.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/71ba69fdd015468dbb356bb55a217725.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/c510d567fcf749eb8b38b64b08a447d8.png" />
- 已知主视图和俯视图，下面左视图画法正确的有（ ）<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/2bcab5bbb4024d99b27781c7c286d861.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/c740df10c8d64a5c9f269c0808cfba30.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/d19031d8c17543f699d8827fa6ac1249.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/1780a38439af44618170b420943a6b6d.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/8b29c3cc4c2e4f3e919c5f22d4ac96f1.png" />
- 已知主视图和俯视图，下面左视图画法正确的有（ ）<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/0e67a6814bf3453d8a2560ad2803175b.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/9cbbab2efe124ef98699ab70b405efa7.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/43768386d66b41419559fe5bf0fb308d.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/3880af04e89d468c8c94acccd953d9c7.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/d4f57df49926458fba76fe114e40f01c.png" />
- 设A=<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/bc546fc03fdb4ba3b7e6b144b6371d7f.png" />，B=Р(Р(A)) 下列（ ）表达式不成立。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/6e615703da60435893f9e9a9273e12e5.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/64c831067d054e71a6c76f43849d450d.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/72023a5250e44c12b98923044194f13d.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/c48e039a739c4502830eee7ae0ac1678.png" />
- 如图所示,内部有一隔板的容器以加速度a运动,若已知容器的尺寸为l1,l2,h1,h2,欲使中间隔板受到的液体总压力为零,加速度a为（）https://image.zhihuishu.com/zhs/onlineexam/ueditor/202002/05be9f76c9a14d9b86a1cd80e3ead826.png