Iwo pipes A and B are connected by a manometer as indicated in Figure 2 . If the heights d1, d2, d3 and d4 are 5cm,15cm,6cm and 10cm respectively, calculate the difference in pressure between the two pipes. The density of ethanol, mercury and air are given as follows 789kg/m3,13600kg/m3 and 1.2kg/m3 respectively. From visual inspection which is the greater pressure between pipe B and A (give your reason). Clearly sketch a depiction of the problem (Figure 2) and show clearly on the sketch the location of the pressure points used in getting to your final