Question

hlw...frnds plzzz help me....
the normal pressure of air is 76 cm of mercury. calculate the pressure in SI units. (take g=10 m/s and density of mercury=13,600 kg/M cube.
plzz help plzz

Answer 1

Pressure = hpg = (75 cm)(13.6 * 1000 kg/m3)(9.8 m/s2)

SI units

We only need to convert cm to m, since all other units are already SI.

So, pressure in SI units = (0.75 m)(13.6 * 1000 kg/m3)(9.8 m/s2) = 99960 bar

Answer 2

Pressure = hpg = (75 cm)(13.6 * 1000 kg/m3)(9.8 m/s2)

SI units

We only need to convert cm to m, since all other units are already SI.

So, pressure in SI units = (0.75 m)(13.6 * 1000 kg/m3)(9.8 m/s2) = 99960 bar

thnx hope dis hlps uh