A cylinder contains 0.1 kg of water at 15 C. A piston increases the pressure on the water isothermally from 1 atm to 100 atm. Find (a) the work done on the water by the piston, (b) the heat removed from the water, and (c) the change in the internal energy of the water. For water at 15 C, the cubic isobaric expansivity

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.