The equation for a driven damped oscillator is(a) Explain the

The equation for a driven damped oscillator is

meë + meyx + m.wóx = qE(t)

(a) Explain the significance of each term.

(b) Let E = E0eiωt and x = x0ei(ωt-α), where E0 and x0 are real quantities. Substitute into the above expression and show that 

qEo т. [од — о?)? + у?«?12

(c) Derive an expression for the phase lag, α, and discuss how α varies as ω goes from ω << ω0 to ω = ω0 to ω >> ω0.