00:01
Now here you look at a cubic object outside air about 1 .228 feet and there's a weight in a 2 ,360 points in vacuum, right? so it's suspended an open tank or liquid.
00:14
So you have a huge tank right, of liquid, something like this, there's liquid around here.
00:19
And this cubic box is suspended somewhere here, right? this is a cubic box and it's a suspended somewhere here, right? this is the side is air, as we said, and the weight is w, which is given, of course.
00:35
And there's a depth, which is air over two, right? so there's a density, the density of the liquid is given by row, okay? the sense of liquid is given by row.
00:46
So what is the total downward force? it's a sustained by the liquid, and the atmosphere on top of the subject.
00:53
So the downward force, and of course, is given by the water.
00:57
By the pressure, multiplied by this area...