the hot reservoir for a Carnot engine has a temperature of 917 K, while the cold reservoir has a temperature of 567 K. the heat input for this engine is 5310 J. the 467 K reservoir also serves as the hot reservoir for a second carnot engine. this second engine used the rejected heat of the first engine as input and extracts additional work from it. the rejected heat for the second engine goes into a reservoir that has a temperature of 191 K. find the total work delivered by the tow engines.