Problem 4 (15 Points): For a circuit with the following voltage and current, determine the complex power, the apparent power, the real power, the reactive power, and the power factor (specifying leading or lagging). v(t) = 25 cos(2л x 10³t+40°) V, i(t) = 0.2 cos(2л x 10³ - 10°) A.

Fig: 1