Consider an LC circuit in which L $=480$ mH and C $=0\mathrm{.}112$F$.$

$($a$)$ What is the resonance frequency $0?$

t $<0$

and is then thrown closed at

t $=0.$

Compute the following quantities at

t $=5\mathrm{.}00$ ms$.$

$($a$)$ the frequency of oscillation of the LC circuit