1.A wire is kept at ambient temperature while it is stretched by 200 mm by a force which rises from zero to 1.5 kN, the extension of the wire being directly proportional to the force applied. What is the work done by the wire? Give details of all work to receive good rating.
2.Water boils at room temperature of 25 degrees celsius when the pressure is 3.17 kPa (abs). Express this as a vaccum gage pressure (in mmHg) if atmospheric pressure is 101 kPa. Provide details of work to get a good rating.