Question
In a horizontal tube, a fluid of density 1000 kg/m³ speeds up from 2 to 4 m/s. Ignoring losses, by how much does pressure decrease?
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Correct Answer: C. 6000 Pa
Explanation:
For horizontal flow, P + ½ρv² is constant.
The pressure drop is ½ρ(v₂²−v₁²).
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