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ROBLEM 4A (8 pts) Water passes through a curvy pipe as shown in the figure. The radius of the pipe at locations 1 and 2 is 4.0 cm and 2.0 cm, respectively, and the water speed at location 1 is 1.0 m/s. If the water in the pipe is held at constant pressure, solve for the height difference between location 1 and 2. The density of water is 1,000 kg/m'. PROBLEM 4B (12 pts) h =_ A piece of ice of mass 50 grams and temperature 0 .C is placed in 140 grams of water at 20 .C. Assuming that no heat is lost to the environment and that the final equilibrium temperature is 0 .C, determine the amount of ice left at equilibrium. The specific heat of water is 4186 J/(kg K) and the latent heat of fusion of water is 3.33 x 105 J/kg. If= PROBLEM 4C (12 pts) An ideal gas increases in volume during an adiabatic process. (B) (2 pts) Is the heat (Q) positive, negative, or zero? (A) (4 pts) Draw a PV diagram of this process. (C) (3 pts) Is the work done on the gas (W) positive, negative, or zero? Explain your reasoning. (D) (3 pts) Is the change in internal energy (AU) positive, negative, or zero? Explain your reasoning