Which option identifies how Kevin should proceed in the following scenario? Four years ago Kevin designed an MP3 player for young children. Now that technology has changed, he would like to update his design to ensure that it encompasses cutting-edge techniques. by referring to past designs and illustrations of his original model by conferring with engineers who have improved upon similar devices by designing an isometric projection of his new ideas by creating a third-angle projection of his ideas

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