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A heart defibrillator delivering 400 J of energy by discharging a capacitor initially at 10,000 V has a capacitance of 8.00 ÂµF (see Example 18.11 of the textbook). The energy stored in the capacitor of a second defibrillator is only 334 J but the charge in both defibrillators is the same. What is the voltage of the second defibrillator?

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