Answer:
Guessing you just need help with the definition but if it's the question I can still help you.
Answer:
Power is a scalar quantity and has a unit,a magnitude(a numerical value) but no direction.
Explanation:
The answer for this would be A. since power is Joules/seconds and energy is rated in Joules
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>
B. A Golf ball, because although just about the same size, the mass of a golf ball is greater than a ping pong ball.
