- #1
jayadds
- 42
- 0
Hi,
I've come across two different formulae for pressure:
p = p0 + rho*g*h (p0 = initial pressure)
OR
p = rho*g*d
My question is, why does one of the formulae includes the initial pressure (initial pressure is often the atmospheric pressure = 1.013*10^5 Pa) in the formula whereas the other one doesn't? Do they actual calculate the same thing?
Many thanks.
I've come across two different formulae for pressure:
p = p0 + rho*g*h (p0 = initial pressure)
OR
p = rho*g*d
My question is, why does one of the formulae includes the initial pressure (initial pressure is often the atmospheric pressure = 1.013*10^5 Pa) in the formula whereas the other one doesn't? Do they actual calculate the same thing?
Many thanks.