A manometer is a device that measures pressure using the height h of a column of liquid. What is the gauge pressure in the tank if the height of a mercury column, h, is 2 m?
Specific weight of water = 9810 N/m^3 = 62.4 lb/ft^3,
Patmospheric = 1.013 x 10^5 N/m^2 = 14.7 psi
Mass density of water = 1000 kg/m^3