A piston-cylinder assembly contains 2 lb of water, initially at 100 lbf/in.2 and 350°F. The water undergoes two processes in series: a constant-pressure process followed by a constant volume process. At the end of the constant-volume process, the temperature is 300°F and the water is a two-phase liquid-vapor mixture with a quality of 50%. Neglect kinetic and potential energy effects. Determine the work and heat transfer for each process, all in Btu. Part A Your answer is incorrect. Determine the work for the constant-pressure process, in Btu. W12= i ! Btu

Part I. Shorter problems focused on the fundamentals a. For the image at the right, the coordinate angles are a = 57°, ẞ= 121°, y=49°, and the point along a-a is (15,-6,3). What is the angle between lines a-a and b-b? Z b-b B LL F a (x,y,z) a-a Y b. If the magnitude of the force, F-3121bf, what is the magnitude projected along the a-a axis? y

answer this; The numerical value of ? can be calculated as  mm

3. Determine the displacement of an eight-cylinder engine having a bore of 3.25 in and a stroke of 3 in.