Power is the RATE at which energy changes or flows.
The unit of energy is the Joule, so a unit of power is the Joule/second.
That unit has the special name "<em>Watt</em>". 
Your question is not necessarily a question. It's also a statement, You could write
"<em>Watt's the basic unit of the measurement of power</em>".
 
        
             
        
        
        
Answer:im just guessing d but i think its d though 
Explanation:
it pretty obvious 
 
        
             
        
        
        
A because the girl in that instant is not moving up or down so 
( up forces)=(down forces ) 
The up forces is the tension of the rope and down forces us mg -the gravitational force on the girl by the earth
        
             
        
        
        
The term that describes the amount of energy transported past a given area of the medium per unit time would be "intensity." In addition, the formula for computing intensity would be:
Intensity = Energy / (Time * Area)
It can be implied that the wave would be more intense when its energy transfer rate gets increased and vibration amplitudes also increases.