Do boys have identical mass of 0.20 grams and a suspended from two long strings if charges on each other see how large is it charge if the strings make an angle of 37 degrees each with a vertical and a distance of Separation is 60 centimetres

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.

Iwould say i also took the quiz but it didn't show me if i got it correct or not.