In an attempt to deliver the parcel on time, the dispatch rider had to ride 10km 15 degrees SE, he then rode 11km 30 degrees NE and then takes a shortcut at 22km W. How many km did he ride NE and W combined

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.

Give me some answer choices and i will be happy to

It would be c hope this out