- The number of times a number or expression is multiplied by itself, for which the symbol is an index or exponent. For example, is the fourth power of x.
- Anything raised to the power of 0 is equal to 1, including 0 to the power of 0.
- Other notation used to denote x raised to the power of n, xn = x^n = x**n
Mechanical Engineering Power is defined as the rate of doing work. The SI unit of power is the watt or joules per second.
- It may also be determined by
- P = Power [Js-1 or W]
- F = Force [N]
- v = velocity [ms-1]
|1 ft lbfs-1||=||1.356 W || ||1 ft lbf min-1||=||0.0226 W |
|1 horsepower||=||550 ft lbfs-1 || ||1 horsepower||=||745.7 W |
|1 ft poundal sec||=||0.0421 W || || |
|Family car (100PS)||7.4x104 W|
|Sun energy production||3.9x1026 W|
See also: Active Power, Brake Horse Power, Cheval Vapeur, Horsepower, Motive Power, Power to Weight Ratio, Prony, SI Units, Torque to Power, True Power.