Extracted text: H.W1: Determine the pressure difference between points A and B in Fig below? 3 Note: p = 1. 2kg/m', %3D air Pbenzen = 880kg/m', 13600kg/m, 3 3 %3D P mercury Kerosene Air To 41 10 cm 21cm 9cm cm 15 cm Benzene Mercury Water 3 Pkerosene = 850kg/m . Ans: P, - P%310.2 Кра B A