关于连通器的问题

2025年03月31日 17:46
有5个网友回答
网友(1):

因为两边液体的密度不同。
几个底部互相连通的容器,注入同一种液体,在液体不流动时连通器内各容器的液面总是保持在同一水平面上。连通器的原理可用液体压强来解释。若在U形玻璃管中装有同一种液体,在连通器的底部正中设想有一个小液片AB。假如液体是静止不流动的。左管中之液体对液片AB向右侧的压强,一定等于右管中之液体对液片AB向左侧的压强。因为连通器内装的是同一种液体,左右两个液柱的密度相同,根据液体压强的公式P=ρgh可知,只有当两边液柱的高度相等时,两边液柱对液片AB的压强才能相等。所以,在液体不流动的情况下,连通器各容器中的液面应保持相平。
若连通器两边液体的密度不同,则两边的液柱就会不一样高了。

网友(2):

0
即液面相平,因为水与酒精完全互溶(即,它们可以任何比例混合),所以可以认为它们是一种溶液,在同一溶液的情况下,自然相平了

网友(3):

左边下降体积=右边上升体积

左下降高度X左截面积=右下降高度X右截面积
左下降高度>右下降高度
因为
左截面积<右截面积
左截面积=左宽X左长,右截面积=右宽X右长
图中给出了高度、宽度,可是没有长度(纵深)
图中左宽>右宽
俯视图应该可以看到左边比右边长

网友(4):

是否阀门两边的器皿不处于同一个外界环境

网友(5):

两管的粗细不同

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