Four capacitors are arranged in the circuit shown in the figure. The capacitors have the values $C_1=29\mathrm{.}5F,C_2=45\mathrm{.}5F,C_3=50\mathrm{.}5F,$ and $C_4=40\mathrm{.}5F,$ and the power supply is at voltage $V=18\mathrm{.}5V.$

What is the equivalent capacitance of the circuit?

equivalent capacitance:

What is the charge on capacitor $C_2?$

charge on $C_2$ :

C

What is the potential difference across capacitor $C_3?$

potential difference across $C_3$ :

V

What is the potential energy stored in capacitor $C_4?$

potential energy stored in $C_4$ :

J