Two power lines, each 300 mm in length, run parallel to each other with a separation of 23 cmcm . Part A If the lines carry parallel currents of 120 AA , what is the magnitude of the magnetic force each exerts on the other?

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.

So are u adding some additional catalyst