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The network shown in the figure is assembled with uncharged capacitors X, Y, and Z, with CX = 7.0 μF, CY = 7.0 μF, and CZ = 6.0 μF, and open switches, S1 and S2. A potential difference Vab = +120 V is applied between points a and b. After the network is assembled, switch S1 is closed for a long time, but switch S2 is kept open. Then switch S1 is opened and switch S2 is closed. What is the final voltage across capacitor X?
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