A water column in a glass tube is used to measure the pressure in a pipe. Th e tube is 1/2 in. in diameter. How much of the water column is due to surface-tension eff ects? What would be the...

A water column in a glass tube is used to measure the pressure in a pipe. Th e tube is 1/2 in. in diameter. How much of the water column is due to surface-tension eff ects? What would be the surface-tension eff ects if the tube were 1/8 in. or 1/16 in. in diameter?