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A piston cylinder arrangement is connected to the manometer system as shown in the figure. The local atmospheric pressure is 101.3 kPa and the gravitational acceleration is 9.81 m/s2. The densities of the water, mercury, light oil and engine oil are Phy0 = 997 kg/m , PHg = 13580 kg/m Poitilight = 910 kg/m and Poll,eng = 885 kg/m, respectively. The heights of the liquids are h1 = 50 cm, h2 = 40 cm, h3 = 80 cm and h4 = 30 cm. The diameter of the piston is 50 cm. Determine the mass (m) of the piston in kg. Piston Light Oil Water H hi h2 h3 undefined h4 Mercury