Engine 1 has an efficiency of 0.18 and r...

Engine 1 has an efficiency of 0.18 and requires 5500 J of input heat to perform a certain amount of work. Engine 2 has an efficiency of 0.26 and performs the same amount of work. How much input heat does the second engine require?

7900J

3800 J

6700 J

4400 J

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