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*28. A mercury barometer reads 747.0 mm on the
roof of a building and 760.0 mm on the ground. Assuming a constant value of
1.29 kg/m3 for the density of air, determine the height of the
building. |
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Pressure at the roof is
pressure of the atmosphere at that height.
Pressure at the ground is the pressure at the roof plus the pressure
due to the weight of the air in a column of height equal to the height of the
building. In other words |
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Solve for the height |
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