Hello all, I'm currently taking an upper division circuits class as a MechE student after taking a 2 year break from the topic. We were given a problem to find the transfer fuctinon T(s) of a high and low pass filter, and then plot Vout(t)'s phase and magnitude vs. the freq. My question is: How to a represent a 2V p-p AC Voltage source in the frequency domain (s)? I think i understand a sin(wt) type transform, but dont i need to transform sin(wt + phi) to get the phase w.r.t. the input source? Any hints, clues, or advice is needed.