Question

Convert 76cm of mercury pressure into Nm

Answer 1

P = pgh

p = density of mercury = 13.6 *10^3 Kg/

m^3

g = 9.8 m/s^2

h = 0.76 m

P = 13.6 x 10^3 x 9.8 x 0.76

= 1.013 x 10^5 N/m^2

hope it helps you