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A 3.0-mF capacitor initially charged to 50 V and a 8.4-mF capacitor charged to 30 V...

A 3.0-mF capacitor initially charged to 50 V and a 8.4-mF capacitor charged to 30 V are connected to each other with the positive plate of each connected to the negative plate of the other. What is the final charge on the 8.4-mF capacitor? (Answer in mC)

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