APFIVE Continuity Equation and Dynamic Pressure
Blood flows through an artery with speed 30 cm/s. The artery narrows to 70% of its original cross-sectional area due to plaque buildup. By what factor does the dynamic pressure (½ρv²) change in the narrowed region?
A
Increases by a factor of 1.43
B
Increases by a factor of 2.04
C
Decreases by a factor of 0.70
D
Increases by a factor of 4.08
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