00:03
Hello, so for this question we apply analysis equation to the surface and outlet of the water.
00:17
This is the surface point one, this is an outlet point two.
00:23
So the equation states that b1 plus half, o is code 1 plus ro g h1 equals b2 plus half, ro v2, 2, rose 2, root g .h 2.
00:45
The atmospheric pressure at 1 and 2 are equal, so b1 equals p2.
00:52
So this can so out, since the atmosphere is the same at the surface and the outlet.
01:02
V1 is approximately 0.
01:05
The speed because the water level decreases.
01:06
Is very, very small.
01:09
If you're looking at the surface of the water, we're not noticed it tick reason.
01:13
That is if the surface area here is very large compared to the surface area here.
01:18
That's called the surface area a and call this one...