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A charge Q1 = -39.50 μC is fixed in place as shown in the diagram below. A second charge Q2 is attached to a massless string which makes an angle of 24° with respect to the vertical. Q2 is not moving (and not accelerating) and is located d = 34.00 cm directly to the right of Q1. Q2 has a mass of 19.2 kg.

What is the magnitude of the charge on Q2 (in μC)?

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