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In physics, power refers to the rate of [[Work|transfer of energy]] respect to [[time]].
In physics, power refers to the rate of [[Work|transfer of energy]] respect to [[time]]
<ref>Serway and Beichner, ''Physics For Scientists and Engineers'', Fifth Edition</ref>.
Mathematically, average power is expressed as:
Mathematically, average power is expressed as:
The usual units for power are [[Watts]] ( W = [[Joule|J]]/[[seconds|s]] ) and [[horsepower]] ( hp = 746 W )
The usual units for power are [[Watts]] ( W = [[Joule|J]]/[[seconds|s]] ) and [[horsepower]] ( hp = 746 W )
==References==
<references/>
[[Category:Physics]]
[[Category:Physics]]