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← ScienceWhich pressure change occurs when a constant-mass airflow accelerates inside smoothly converging duct?
A)Pressure decreases predictably (Bernoulli's principle applies)✓
B)Pressure rapidly fluctuates from cavitation
C)Pressure steadily rises during isothermal compression
D)Pressure increases with increased momentum transfer
💡 Explanation
Airflow accelerates inside the duct because kinetic energy increases according to Bernoulli's principles. Therefore, pressure must decreases per its equation, rather than cavitation or isothermal compression that would reflect different fluid behavior or physical setup.
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