A heat engine receives 7000 J of heat and loses 3000 J in each cycle. What is the efficiency?
A. 57%
B. 30%
C. 70%
D. 43%
Answer:A
A heat engine receives 7000 J of heat and loses 3000 J in each cycle. What is the efficiency?
A. 57% B. 30% C. 70% D. 43%