Help please

In this figure C1 C2 a e C3 the capacitors have the values . C1 = 5.81 HF, . C2 = 2.98 UF, . C3 = 1.59 HF and . C4 = 2.98 HF. The capacitor network is connected to an applied potential Vad. After the charges on the capacitors have reached their final values, the charge on C2 is 92 = 5.92 MC. a. (Q7 ans 2 pts, Q8 work 4 pts) What is the equivalent capacitance between points a and d? b. (Q9, 6 pts) What is the value for polential difference across C1? This would typically be called Vi c. (Q10, 6 pts) What is the value for V4, the potential across C4? d. (Q11, 6 pts) What is the value for applied voltage Vad? e. (Q12, 6 pts) What is the value for energy on the capacitor C3? To continue, please give the equivalent capacitance between points a and d (part a) in units of UF