I need help with part 1, 2, and 3

015 (part 1 of 3) 10.0 points An engine absorbs 2242 J from a hot reservoir and expels 586 .J to a cold reservoir in each cycle. What is the engine's efficiency? Answer with an efficiency in decimal form. 016 (part 2 of 3) 10.0 points How much work is done in each cycle? Answer in units of .J. 017 (part 3 of 3) 10.0 points What is the mechanical power output of the engine if each cycle lasts for 0.38 s? Answer in units of kW