An insulated container, filled with 10 kg of liquid|water at 20°C, is fitted with a stirrer. The stirrer is made to turn by lowering a 25-kg object outside the container a distance of 10 m using a frictionless pulley system. The local acceleration of gravity is9.7 m/s². Assume that all work done by the object is transferred to the water and that the water is incompressible. A. Determine the work transfer (kJ) to the water. B. Determine the increase in internal energy (kJ) ofthe water. C. Determine the final temperature (°C) of thewater. D. Determine the heat transfer (kJ) from the waterrequired to return the water to its initialtemperature.

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