AP (Advanced Placement) Physics(B-C): Questions 186 - 189 of 921

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Question number: 186

» Kinematics in One and Two Dimensions

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MCQ▾

Question

Two vectors with magnitudes

Two Vectors with Magnitudes

Which of the following shows resultant vector of ? ( is unit vector of resultant vector)

Choices

Choice (5)Response

a.

The resultant vectors : Choice A

b.

The resultant vectors : Choice B

c.

The resultant vectors : Choice C

d.

The resultant vectors : Choice D

e.

Question does not provide sufficient data or is vague

Question number: 187

» Linear Momentum

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MCQ▾

Question

Two skaters stand face to face on the ice. Skater has a mass of , and skater 2 has a mass of . They push off one another and move in opposite directions. What is the ratio of skater 1’s speed to skater 2’s speed?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

Question number: 188

» Work, Energy and Power

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MCQ▾

Question

A ball that is dropped from a height of loses of its mechanical energy to thermal energy when it hits the floor. What is the kinetic energy of the ball just after it rebounds from the floor?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

Question number: 189

» Magnetic Field & Electromagnetism

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MCQ▾

Question

Which of the following statements best describes Earth’s magnetic field?

Choices

Choice (5)Response

a.

Earth’s magnetic field lies along the direction that the north magnetic pole of a compass points.

b.

Earth’s magnetic field has its current south magnetic pole in northern Canada.

c.

Earth’s magnetic field may be related to an iron-nickel core and the spin of the planet.

d.

All a. , b. and c. are correct

e.

None of the above

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