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A heat engine operates in a Carnot cycle between 84.0°C and 355°C. It absorbs 20,800 J of energy per cycle from the hot reservoir. The duration of each cycle is 2.00 s. (a) What is the mechanical power output of this engine? kW (b) How much energy does it expel in each cycle by heat? 0.57 X Apply the first law of thermodynamics to find the heat expelled from the energy input and the work output in each cycle. kJ Need Help? Read It Master It
Now Amita and Winnie are ready to try a problem. A mass is suspended by a spring in a viscous liquid. The mass of the object is 0.4 g, the spring constant is 1.80 N/m, and b = 0.1 N s/m. Over what time interval does the amplitude drop to half its initial value? S Submit Skip (you cannot come back)