A complex load is driven by a current source \(i(t)\) \(=10 \cos (2 \mathrm{k} t) \mathrm{mA}\). The voltage measured across the load is \(v(t\) )\(=100 \cos \left(2 \mathrm{k} t-85^{\circ}ight) \mathrm{V}\). Find the impedance of the load and determine what two elements \(\mathrm{R}, L\), and/or \(C\) are equivalent to it.