# Bernoulli's law

Ber·noul·li's lawTHE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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- A law of fluid mechanics stating the relationship between the velocity, density, and pressure of a fluid. Mathematically, the law states that
*P*+^{1}/_{2}*ρv*^{2}= constant, where P is the pressure (in newtons per square meter),*ρ*is the density of the fluid (in kilograms per square meter), and*v*is the velocity (in meters per second). If no energy is added to the system, an increase in velocity is accompanied by a decrease in density and/or pressure. The law is directly related to the principle of conservation of energy.See also Bernoulli effect

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**MLA Style**

"Bernoulli\'s law."

*YourDictionary*. LoveToKnow. www.yourdictionary.com/bernoulli-s-law.**APA Style**

Bernoulli\'s law. (n.d.). In

*YourDictionary*. Retrieved from https://www.yourdictionary.com/bernoulli-s-law