Resonance and power in code

You will write three functions for the resonance of a series circuit and for the power it takes.

The idea. At resonance $\omega_0 = 1/\sqrt{LC}$ and $Q = \omega_0L/R$. The average power is $P = I_{rms}^2R$, where $I_{rms} = V_{rms}/Z$. All values are in SI units: henry, farad, ohm, volt.

Your tasks.

1. In resonant_frequency, return $f_0$ in hertz.
2. In quality_factor, return $Q$.
3. In average_power, return the average power in watt for an rms voltage v_rms, a resistance r and a net reactance x_net.