Air flows through the Venturi tube that discharges to the atmosphere as shown in the figure. If the flow rate is large enough, the pressure in the constriction will be low enough to draw the mercury from the tank up into the tube. section I section 2 discharges into the atmosphere tank is open to the atmosphere Show (from first principles) that the flowrate, Q, can be calculated by the following equation. 3.1 (15) Q = 2gH(Hg) 3.2 What is the pressure at section 1? Assume the air flow is frictionless. (1) 3.3 Determine the height which mercury from the tank is drawn up the pipe if Q = 10.0 m/s A1 = 0.4 m2 A2 = 0.15 m2 %3D Take the density of mercury to be 13500 kg/m (4) 3.4 If you conduct an experiment using a set-up that is identical to that above, you would still not be able to reproduce the results calculated in 3.3 above. 3.4.1 Would the height of mercury in the actual experiment be higher or lower (2) than that calculated in 3.3? 3.4.2 Explain your answer in 3.4.1. (3)