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BERNOULLI AND ENERGY EQUATIONS
The Bernoulli equation is obtained from Newton’s second law for a fluid particle moving along a streamline. It can also be obtained from the first law of thermodynamicsapplied to a steady-flow system, as shown in Section 12–2. P 1 r V 2 1 2 gz 1 P 2 r V 2 2 2 gz 2 P r V 2 2 gz constant 1along a streamline2 dP r V2 2
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