Task id16331

In the circuit shown in the figure, at first the key K is not closed. By what amount will the charge on the capacitor change if switch K is closed? R1 = 10 kOhm, R2 = 15 kOhm, C = 1 µF, E1 = 34 V, E2 = 9 V. Neglect the internal resistance of the sources.