1. The problem statement, all variables and given/known data See figure 2. Relevant equations V = IR 3. The attempt at a solution I have a few questions about notation before I begin with an attempt at the problem. Are there 2 voltage sources in this circuit diagram? One on the left, one ontop? Also it says that Vo = 5v, does that mean they want to me to create this "buffer" so that the voltage measured at the port Vo is 5V? Also what do they mean by a buffer? I'm pretty confused as to how I should be manipulating the resistance RL, what kind of effect am I looking to create to make a "buffer"? Thanks again guys!