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Pressure is calculated using P2=P1+pgh, where p is the density of the fluid (999.997kg/m^3), g is the acceleration of gravity (9.81m/s^2), and h is the depth you are trying to find the pressure at (in this case 1.2m).
Absolute pressure is going to be atmospheric pressure (P1=101.3kPa) plus the relative pressure to the liquid surface.
Thus we get P2=101300Pa+(999.997kg/m^3*9.81m
/s^2*1.2m)=101300Pa+11772Pa=113124.9Pa or 16.4psi.
Relative pressure is 11772Pa or 1.107psi.
Hope this helps you out as well as shows how to calculate pressure at depth for other fluids at various depths.
Regards,
- Felix
What else can I help you with?
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