I am struggling with physics 5C due to having a horrible physics professor who is hard to understand and read his handwriting. Although I've tried studying via Khan Academy, I am still struggling immensely with homework problems. I'm hoping someone can help walk me through step by step how to solve problems 3.1 and 3.2. This would be immensely appreciated, thank you !!!

Problem 3.1 In the circuit below, take , =6 V,C; =2 nF,C, =1 pF, C3 = 5 pF and C, = 3 pF. Fi LJT Find each capacitor's potential difference, charge, and energy. You may use whatever method you like. In Example 3.5 from this week's lecture notes, I demonstrate a tabular method to organize your work. Problem 3.2 A capacitor is charged to a certain potential difference and is then disconnected from the battery. We then insert dielectric x into the capacitor, completely filling the gap. a) Find the relative difference between the capacitor's final and initial energies, AU /Uy = (U;Uy) /U. b) Repeat part a, assuming that the battery remains connected to the capacitor