Answer:
A slider Crank Mechanism creates linear and rotary motion
Explanation:
The statement that best describes an external circuit is "<span>D. The flow of an alternating current switches direction when a generator's terminals change its charge." The main difference between direct and alternating current is the direction of flow. Direct current follows only one direction from negatve to positive, while alternating current changes direction periodically.</span>
Veo en youtube es buena explicacion hablame por mensaje y te doy el link
