Work it out please

Section 16.8 Combinations of Capacitors 27. A series circuit consists of a 0.050-uF capacitor, a 0.100-uF capacitor, and a 400-V battery. Find the charge (a) on each of the capacitors; (b) on each of the capacitors if they are reconnected in parallel across the battery. 28. Three capacitors, C, = 5.00 UF, Cq = 4.00 uF, and Gg = 9.00 uF, are connected together. (a) Find the ef- fective capacitance of the group if they are all in paral- lel. (b) Find the effective capacitance of the group if they are all in series