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.