Fluids & Solids [AP (Advanced Placement) Physics(B-C)]: Questions 1 - 3 of 67

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Question number: 1

Fluids & Solids
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Question

MCQ▾

Water flows horizontally from a larger pipe with a diameter of to a smaller pipe with a diameter of . The smaller pipe then curves upward, and the water flows at a level higher, as in the illustration. If the speed of the water is in the larger pipe, what is the speed of the water in the smaller pipe as it flows at the higher level?

Two pipes system

Two Pipes System

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Choices

Choice (5)Response

a.

b.

c.

d.

e.

All of the above

Question number: 2

Fluids & Solids
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Question

MCQ▾

Air is moving horizontally from a wide pipe of diameter at a speed of to a narrow pipe of diameter . Assuming that the density of air is ; and neglecting change in density due to compression. What is the change in internal pressure of the air?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

Question number: 3

Fluids & Solids
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Question

MCQ▾

In the illustration, a bar of metal is suspended under water by two cords. If is the tension in each cord, is the weight of the bar in air, and is the buoyant force of the water on the bar, which of the following equations correctly expresses the forces on the bar of metal?

A bar is suspended under water

A Bar is Suspended under Water

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Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above