For the resistor, the impedance is simply its resistance: \(Z_R = R = 4\Omega\).
For the inductor, the impedance is \(Z_L = j\omega L = j(10)(0.5) = 5j\Omega\).
For the capacitor, the impedance is \(Z_C = -j/\omega C = -j/(10)(0.1) = -10j\Omega\).
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