The basic barometer can be used to measure the height of the building. If the barometer reading at the top & batton of the building is 730mm Hg & 755 mm Hg. Determine the height of the building. the density of air 1.18 kg per cubic meter & 13600 kg per cubic meter
"\\triangle P=P_{down}-P_{top}=(h_{down}-h_{top}) \\rho _{Hg} \\times g"
"\\triangle P=(755-730) \\times 10^{-3} \\times 13600 \\times 9.81"
"\\triangle P=\\triangle y \\rho_{air}g"
"\\triangle y = \\frac{\\triangle P}{\\rho_{air}g}= \\frac{(755-730) \\times 10^{-3} \\times 13600 \\times 9.81}{1.18 \\times 9.81}= 288.136 m"
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