利用毛细管测定油液粘度,已知毛细管直径d=4.0mm,长度L=0.5m,流量Q=25px3/s时,测压管落差h=375px。管中作层流动,油液的运动粘度为()。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/8e959ce0b24d476a94fa55fbaeab220d.png
举一反三
- 利用毛细管测定油液粘度,已知毛细管直径d=4.0mm,长度L=0.5m,流量Q=25px3/s时,测压管落差h=375px。管中作层流动,油液的运动粘度为( )。[img=199x166]17a3dcb618978b7.png[/img]
- 利用毛细管测定油液粘度,已知毛细管直径d=4.0mm,长度L=0.5m,流量Q=...94fa55fbaeab220d.png
- 管径d=125px,管长L=6m的水平管中有比重为0.9油液流动,水银差压计读数为h=355px,三分钟内流出的油液重量为5000牛顿。管中作层流流动,油液的运动粘度ν为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/3efe557b0a69405c8c7556991997e87e.png
- 管径d=125px,管长L=6m的水平管中有比重为0.9油液流动,水银差压计读数为h=355px,三分钟内流出的油液重量为5000牛顿。管中作层流流动,油液的运动粘度ν为( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/3efe557b0a69405c8c7556991997e87e.png
- Which one is Homer’s epic? A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/60a09e42c1cb4c988adcf2fa43a2170c.png"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/148a547a82cd4f5482de272b09415b7f.png"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/bc77b52b6ae747fda43ef56a09994b9f.png"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201901/9a18e23e6d9a453ea18eaabd88d99376.png">