If the atmospheric pressure at sea level is 7.5 N/cm2, determine the pressure at a height of 3000m assuming the pressure variation follows isothermal law. The density of air is given as 1.2 km/m3.
(a) 4.68 N/cm^2
(b) 9.37 N/cm^2
(c) 2.34 N/cm^2
(d) None of the mentioned
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This intriguing question comes from Pressure at a Point in Compressible Fluid in portion Pressure and Its Measurement of Fluid Mechanics