Rubbing a plastic bag and a balloon with a cloth gives both objects a net negative charge. The balloon's charge is -2 x 10^-10 C and the bag's charge is -1.5 x 10^-5 C, and the balloon has a mass of 1.3 g and the bag has a mass of 0.5 g. How far above the center of the balloon will the bag levitate?

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