problem 1: Find out the current via each component, in polar form, by using superposition analysis. Source voltages are the rms at 0 degrees.
problem 2: Find out the current via each component, in polar form, by using superposition analysis. Source values are the rms at 0 degrees.
problem 3: Find out the voltage across R1, in polar form, by using superposition analysis. Source voltages are the rms at 0 degrees.
problem 4: Find out the current via R1, in polar form, by using superposition analysis. Source currents are the rms at 0 degrees.