Determine the capacity for a two-lane approach to a signalized intersection that gets 45 seconds of green out of a cycle length of 100 secs. Studies show that the saturation discharge headway at the intersection is equal to 2.1 secs. Assume that the start-up lost time is equal to 2 secs, the clearance lost time is equal to 1.2 secs, and that the duration of the yellow interval is equal to 3.5 secs.

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