Find $($a$)$ v$(0)$: $($b$)$ the instant of time, greater than zero, when the voltage u passes through zero: $($c$)$ the expression for the power delivered to the inductor: $($d$)$ the instant when the power delivered to the inductor is maximum; $($e$)$ the maximum power; $($f$)$ the instant of time when the stored energy is maximum; and $($g$)$ the maximum energy stored in the inductor.