A Circuit Puzzle/Problem - 8

        The peripatetic EE grad student, Willy Nilly, needs your help on this circuit.

He needs to determine how much power each source provides in this circuit.  Accordingly, he has developed a plan.  Here is his plan.

 l  First, it is necessary to determine Vout.
 l  Once Vout is found, determine the currents
         through the two resistors, R1 and R2.
         (And Willy defines those currents flowing
         out of the respective sources towards the
         node.)
 l  Using those currents, compute the power
         supplied by each source (using the product
         of the source voltage and the current flowing
         out of the source).

        Your problem is to execute Willy's plan, and determine which source provides the higher amount of power to the ten ohm load.