Question 3 (10 marks) i) A pontoon is 65m long, 18m wide and and 10m deep. It has a draft of 6.5m when floating in an upright condition. The centre of gravity of the pontoon is on the axis of symmetry, 0.75m above the water surface. Compute: a) The initial metacentric height (3 marks) b) The righting moment in fresh water when the angle of heel, is 12o . (3 marks

1kg of water contained in a piston-cylinder assembly undergoes two processes in series from an initial state where the pressure is 3.0 bar and the temperature is 150°c process 1-2: the water is compressed isothermally to a volume of 0.25 m^3 with 120 kj of work being done to the system. process 2-3: the water is heated at constant volume to a final pressure of 10 bar. a. find the change in internal energy for the system. b. calculate the amount of heat transferred, in kj. c. sketch both processes on a t-v diagram. (196.33 kj/kg, 76.33 kj)