1.

A uniform U-tube is partially filled with water. Oil, of density Poil = 0.69 g/cm, is poured into the right arm until the water level in the left arm rises to /7, = 1.45 cm. What is the height, hoj, of the oil column? Take the density of water as pw= 1.0 g/cm. Please round your answer to two decimal places.A thermodynamic system undergoes the three processes shown in the diagram: (A - B, B-C, and C - A). PA = 3 x 10' Pa, PB = 11 x 105 Pa, VA = 0.81 m3, Vc = 1.03 m3. What is the thermal efficiency of the system (please express your answer as percent? Take y = 1.5. Please round your answer to two decimal places. B Pressure P V Vc Volume A