A simply supported beam is loaded by a couple M as shown. The beam is 2m long and of square cross section 50 mm on a side. If the maximum permissible deflection in the beam is 5mm, and the allowable stress is 150 MPa, find the maximum allowable load M. Use E=200GPa.

Acarnot refrigerator operates in a room in which the temperature is 21°c and of power when operating. if the food compartment of the refrigerator is consumes 3 kw to be maintained at 2°c, determine (a) the coefficient of performance of the cycle and (b) the rate of heat removal from the food compartment. refrigerator cycle that has a higher coefficient of performance than that of the discussed (e) is it possible to develop a carn ot refrigerator, operating between the same temperature limits? explain