a 3kg flower pot sits on a window ledge 1.8m above the ground. It is. knocked off the ledge and hits the ground. What is its kinetic energy before it hits the ground?

If the heat engine is a perfect carnot cycle engine, thenefficiency = (t2-t1)/t2   where t1=temperature of cold reservoir ( ° k) = 135            t2=temperature of hot reservoir ( ° k)   = 325thereforeefficiency = (t2-t1)/t2 = (325-135)/325 = 0.5846 = 58%  note: this is the theoretical maximum efficiency of a perfect heat engine.   real-life engines do not achieve this value.

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What about pink because im not too fond of red