In crash tests, a shock absorber is used to slow the test car. the shock absorber consists of a piston with small holes that moves in a cylinder containing water. viscous dissipation in the water transforms work into heat. how much heat will be transferred from the water after a 2000 kg car crashes into the shock absorber at a speed of 40 m/s?

Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.