1. The problem statement, all variables and given/known data In a 60 Hz series RL network, the source is supplying 400 W of real power. If R = 15.08 Ω and L = 40 mH, find a. The power factor. (Indicate if it is leading or lagging) b. The apparent power supplied. c. The reactive power supplied. 2. Relevant equations None were given 3. The attempt at a solution Ive been trying to google about power factor and reading up on it for quite some time, but I am still stuck. I know I can get PF by taking cosθ, but I am unsure of how to find θ for this particular problem. I believe it can be done by taking cos^(-1) (Real Power/Apparent Power), but again I was not sure of how to find apparent power. I guess the biggest problem for me so far is been trying to relate the 60Hz to the rest of the problem. If someone could give me a hint on this I would greatly appreciate it. I had a funeral to attend to so I missed the class discussing most of these things, and its been difficult trying to read up on it online. Any help is appreciated!