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Q1. A 9 turn coil 1.80 in diameter is rotated at 11 about an axis perpendicular to a uniform magnetic field. A voltmeter connected to the coil through rotating contacts reads a peak value of 340.

Q2. The front spring of a car's suspension system has a spring constant of 7.11 x 10^6 N/m and supports a mass of 291 kg. The wheel has a radius of 0.360 m. The car is travelling on a bumpy road, on which distance between bumps is equal to the circumference of the wheel. Due to resonance, the wheel starts to vibrate strongly when the car is travelling at a certain minimum linear speed. What is this speed?

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