Answer:
The barometric height at sea level is 76 cm of mercury while that a point on a highland is 74 cm of mercury. Determine the altitude of the mercury.(Take g as 10 N/kg, the density of mercury 13600 kg/3m and density of air is 1.25 kg/m3)
THe answer is 217.5m
The altitude will be 217.5 meters. The correct option is B.
The force per unit area acting on an item submerged in fluid or on the surface of a closed container is measured as fluid pressure. Gravity, acceleration, or external forces may all contribute to this pressure in a closed container. A fluid has no fixed shape, hence its pressure is uniform throughout.
Given that the barometric height at sea level is 76 cm of mercury while that a point on a highland is 74 cm of mercury. Take g as 10 N/kg, the density of mercury 13600 kg/3m, and the density of air is 1.25 kg/m3)
The altitude will be calculated by using the hydrostatic law:-
[tex]\rho_mgh_m = \rho_agh_a[/tex]
Putting all the values to get the altitude.
13600 x 2 x 10⁻² = 1.25 x ha
ha= ( 136 x 2 ) / 1.25
ha= 217.5 meters
Therefore, the altitude will be 217.5 meters. The correct option is B.
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