AP (Advanced Placement) Physics(B-C): Questions 272 - 275 of 921

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Question number: 272

» Fluids & Solids

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MCQ▾

Question

An object with volume floats in a fluid with density so that the object is submerged in the fluid. Which of the following correctly expresses the density of the object?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

All of the above

Question number: 273

» Linear Momentum

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MCQ▾

Question

Two carts (A and B) have the same mass. Cart , moving to the right on a track at , collides elastically with cart , moving to the left on the track at . What are the velocities of cart and cart after they collide?

Choices

Choice (5)Response

a.

The two carts move together to the right at .

b.

Cart is moving to the left at , and cart is moving to the right at .

c.

Cart is moving to the left at , and cart is moving to the right at .

d.

Cart is moving to the left at , and cart is moving to the right at .

e.

None of the above

Question number: 274

» Fluids & Solids

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MCQ▾

Question

A ball of a radius of , a mass of floats in water. What is the buoyant force on the ball?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

Question number: 275

» Thermodynamics

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MCQ▾

Question

Which of the following quantities does NOT normally increase with an increase in temperature?

Choices

Choice (5)Response

a.

The speed of sound in air

b.

Electrical resistance

c.

The density of a gas

d.

The pressure of a gas at constant volume

e.

None of the above

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