APFIVE Incompressibility of Ideal Fluids
A student claims that for an ideal fluid flowing through a constricted section of a pipe, its density must increase to maintain a constant mass flow rate. Which of the following statements best evaluates this claim?
A
The claim is incorrect; density decreases in constrictions
B
The claim is incorrect; ideal fluids are incompressible
C
The claim is correct; density must increase with pressure
D
The claim is correct; mass conservation requires it
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