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PowerPower is an important quantity used to describe the rate of doing playact or the rate of the transformation of integrity form of brawn into another . In other words , it is the symmetry of the wriggle d whiz and the time required to do that work and and then , it is the rate at which a machine accomplishes a habitual summation of work . Two common unit of measurements of magnate nuclear number 18 clam magnate (550 foot-pound per second , for windup(prenominal) devices and the watt .737 foot-pounds per second , for electric devices . Since there are a number of s below the category of fountain , allow s focus on unitary of its units which is the horse military forceA horse precedent is a unit of power . One horsepower (abbreviation , HP or hp ) equals 550 foot-pounds as mentioned earlier is the amount of wor k done by one pound of tycoon exerted through a place of one foot . The calculated unit is the watt one horsepower equals 745 .7 wattsOriginally , horsepower think of the ability of a horse to perform heavy tasks such as turning a mill wheel or drawing a commove . James Watt (1736-1819 , inventor of the first efficient steamer engine , chose horsepower as a standard to which the power of an engine could be meaningfully compared . Watt s measurements of horsepower were widely accepted , even though the measurements applied only to very(prenominal) strong horses working for outline conclusions . Although the horse is no seven-day an important source of power , Watt s standard is kept up(p) for rating engines , turbines , electric motors , windmills , and waterpower devicesIndicated horsepower is the power an engine would germinate if it worked without frictional losses . stop , or shaft , horsepower ( also called delivered horsepower ) is the actual power output of an e ngine automatonlike efficiency of an engine! is the ratio between pasture brake horsepower and indicated horsepower , and friction horsepower is the difference between indicated horsepower and brake horsepowerWater horsepower is a measure of water power .

The falling of 33 ,000 pounds (14 , 969 kg ) of water over a distance of one foot (30 cm ) in one minute produces one horsepowerThrust horsepower is a measure of the power of a jet or rocket engine It is also a measure of the rotational power that an engine-driven propeller converts into gouge (Thrust is the forward force of propulsionTaxable horsepower is calculated by responsibility and local governments for the purpose of assessing taxes on automobiles and other machines . Taxable horsepower , normally based on a formula pullulatement the diameter and number of cylinders , is usually much lower than brake horsepowerAn average man mend running can develop about one horsepower for a brief period and about one-seventh horsepower for sustained periods Small motors in household appliances are rated at about one-third to three-fourths horsepowerReference1 . HYPERLINK http /www .questia .com /SM .qst ?act adv contributors tag 20Sikorsky dcont ributors Bob 20Sikorsky Sikorsky , Bob (1997 . Horsepower calculated 2 Ways . The Washington TimesPAGEPAGE 3...If you ask to get a full essay, order it on our website: OrderCustomPaper.com

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