APFIVE Principle of Continuity for Fluids
A fluid with density ρ flows through a horizontal pipe with cross-sectional areas A₁ and A₂, where A₂ = 2A₁. If the fluid’s speed at A₁ is v₁, which property of the fluid must remain constant throughout the pipe?
A
Kinetic energy per unit volume
B
Speed
C
Pressure
D
Mass flow rate
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