(Solved): What is the power factor angle \( \theta \) of a load with a voltage \( v(t)=139 \cos \left(325 t+\ ...

What is the power factor angle \( \theta \) of a load with a voltage \( v(t)=139 \cos \left(325 t+\left(-115^{\circ}\right)\right) \) and current \( i(t)=13 \sin \left(325 t+\left(-70^{\circ}\right)\right) ? \) Determine \( \theta \) in degrees (positive or negative angle): Answer: