Pls a ball rolls horizontally off a 100-meter-tall cliff at 40 meters per second. how far does the ball travel horizontally before reaching the ground? (neglect air resistance.) a. 100 meters b. 200 meters c. 300 meters d. 400 meters

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.