Water flows through a constriction in a horizontal pipe.As it enters the constriction, the water's:
A)speed increases and pressure decreases
B)speed increases and pressure remains constant
C)speed increases and pressure increases
D)speed decreases and pressure increases
E)speed decreases and pressure decreases

Question

Quizplus · Accepted Answer

According to Bernoulli's principle, as the velocity of a fluid increases, its pressure decreases. Therefore, as the water flows through the constriction and its speed increases, its pressure must decrease.

Water Flows Through a Constriction in a Horizontal Pipe