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horsepower

horse·pow·er / ˈhôrsˌpou(-ə)r/ (abbr.: hp) • n. (pl. same) a unit of power equal to 550 foot-pounds per second (745.7 watts). ∎  the power of an engine measured in terms of this: a strong 140-horsepower engine. See also brake horsepower. ∎  power; ability to perform strenuous tasks: other software improvements include more analytical horsepower.

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horsepower

horsepower, unit of power in the English system of units. It is equal to 33,000 foot-pounds per minute or 550 foot-pounds per second or approximately 746 watts. The term horsepower originated with James Watt, who determined by experiment that a horse could do 33,000 foot-pounds of work a minute in drawing coal from a coal pit.

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"horsepower." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 24 May. 2018 <http://www.encyclopedia.com>.

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horsepower

horsepower (hp) Unit indicating the rate at which work is done, adopted by James Watt in the 18th century. He defined it as the weight, 250kg (550lb), a horse could raise 0.3m (1ft) in one second. The electrical equivalent of 1 hp is 746 watts.

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horsepower

horsepower an imperial unit of power equal to 550 foot-pounds per second (about 750 watts); the power of an engine measured in terms of this.

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horsepower

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