Implement a function avg() that takes as input a list that contains lists of numbers representing grades each student received in a course. the function avg() should print, one per line, every student’s average grade. you may assume that every list is nonempty, but you cannot assume that every student has the same number of grades. use the format function to print the output as follows:

> > > avg([[95, 93, 100, 89], [50, 75], [33, 0, 103], [88, 99]])

student 1 has an average of: 94.25

student 2 has an average of: 62.5

student 3 has an average of: 45.6

student 4 has an average of: 93.5

answer:

200k

explanation:

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Explanation:

A Carnot heat engine receives heat from a reservoir at 900$^\circ{}$C at a rate of 800 kJ/min and rejects the waste heat to the ambient air at 27$^\circ{}$C. The entire work output of the heat engine is used to drive a refrigerator that removes heat from the refrigerated space at -5$^\circ{}$C and transfers it to the same ambient air at 27$^\circ{}$C. Determine (a) the maximum rate of heat removal from the refrigerated space and (b) the total rate of heat rejection to the ambient air. Answers: (a) 4982 kJ/min, (b) 5782 kJ/min