10. The repair order is a legal document because A. the shop owner signs it
B. it's signed by the customer.
C. the manufacturer authorizes it
D. it's paid for by the customer

An engine runs on the ideal diesel cycle. the cycle has a compression ratio of 20 and a cutoff ratio of 2. the highest temperature in the cycle is 1200 k. if the heat into the system is 300 kj/kg of working fluid and using variable specific heats determine the work produced per mass of working fluid