00:01
Good day, the topic is about hydrostatic pressure.
00:04
We note that a certain column of liquid will exert a pressure, a certain depth from its surface that is solved as p equals raw times g times h.
00:15
P is the pressure in pascal, raw is the density in kilogram per meter cube, which is the density of the fluid, and that g is the acceleration due to gravity in meters per second squared, and height is the and h is the height or the depth.
00:30
Of from the from the surface of the fluid so let us suppose we wish to find the pressure at a certain depth of 76 centimeter below the surface of a water and b mercury with a given densities so let us start by expressing the densities in kilogram per cubic meter so we may illustrate that using the density of water so that 1 ,000 kilogram is equal to, or rather 1 ,000 gram is equal to 1 kilogram.
01:10
And that 100 centimeter makes 1 meter.
01:15
So we'll cube, take the cube of this, since our cm is also raised to 3.
01:24
So this gives us 1 times 100 cube over 1 ,000.
01:30
Or this is equal to 1 ,000 kilogram per cubic meter...