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The relation that keeps mass constant as an incompressible fluid flows through a changing pipe is the:

AEquation of conversion
BEquation of conduction
CEquation of continuity
DEquation of condition
Answer & Solution
Correct answer: C. Equation of continuity
1. What flows in must flow out. 2. A narrower section must carry faster flow. 3. That relation is the equation of continuity. _Source: OpenStax University Physics Volume 1, Chapter 14, Fluid Mechanics._
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