Q. A 12.0 resistor, 10.0 mH inductor, and a 50.0 µF capacitor are connected in series to a 55.0 V (rms) source having variable frequency. Find the energy delivered to the circuit during one period if the operating frequency is twice the resonance frequency.
Q. An airplane is heading due south at a speed of 520 km/h . If a wind begins blowing from the southwest at a speed of 95.0 km/h (average).
Calculate magnitude of the plane's velocity, relative to the ground.