Use the density of water and density of mercury from standar

Use the density of water and density of mercury from standard tables and the accepted value for atmospheric pressure to calculate the height of (b) water and (b) mercury to yield a hydrostatic pressure at the base equal to (absolute) atmospheric pressure. Express your answer in both SI as well as in CGS units.

Solution

density of water=1000 kg/m³

density of merucury=13600 kg/m³

atmospheric pressure=101325 N/m³

pressure = gh=1000x9.81.h=101325

a) h=pressure in water column=10.328 m = 1032.874 cm

b) pressure = gh=13600x9.81xh=101325

h=pressure in mercury column =0.759 m = 75.9 cm 759 mm