At a certain place, Earth's magnetic field has magnitude B = 0.590 gauss and is inclined downward at an angle of 70 degrees to the horizontal. A flat horizontal circular coil of wire with a radius of 10.0 cm has 1000 turns and a total resistance of 85 olms. It is connected in series to a meter with 140 olm resistance. The coil is flipped through a half-revolution about a diameter, so that it is again horizontal. How much charge flows through the meter during the flip?

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