A U-Shaped Tube Is Connected to a Flexible Tube That

Multiple Choice

A u-shaped tube is connected to a flexible tube that has a membrane-covered funnel on the opposite end as shown in the drawing.Justin finds that no matter which way he orients to membrane,the height of the liquid in the u-shaped tube does not change.Which of the following choices best describes this behavior?

A) Archimedes' principle
B) Bernoulli's principle
C) continuity equation
D) irrotational flow
E) Pascal's principle