Solve the following problem given bellow:
Problem: Unpolarized light with intensity 390W/m2 passes first through a polarizing filter with its axis vertical, then through a second polarizing filter. It emerges from the second filter with intensity 132W/m2.
Part A: What is the angle from vertical of the axis of the second polarizing filter?
Part B: What is the angle from vertical of the axis of the second polarizing filter?
Please include each step and the equations you used. Thanks!