Mathematics, 26.06.2019 14:10 thisismyusername875
John owns an engine which receives heat input from a reservoir at 600 k and loses heat to a sink at 300 k. what is the maximum possible efficiency of this engine? a. 25 percent b. 50 percent c. 75 percent d. 100 percent
Answers: 3
Mathematics, 21.06.2019 21:30
Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3
Answers: 1
Mathematics, 21.06.2019 23:00
Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?
Answers: 1
Mathematics, 21.06.2019 23:30
It takes an ant farm 3 days to consume 1/2 of an apple. at that rate, in how many days will the ant farm consume 3 apples
Answers: 1
John owns an engine which receives heat input from a reservoir at 600 k and loses heat to a sink at...
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