AP (Advanced Placement) Physics(B-C): Questions 679 - 682 of 921

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Question number: 679

» Linear Momentum

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MCQ▾

Question

Two objects of masses and are moving along the same straight line and direction with velocities of and , respectively. They collide and after the collision, the first object moves at a velocity of . What is the velocity after the collision of second object?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

Question number: 680

» Electrostatics

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MCQ▾

Question

A latex balloon is charged up to . How many electrons are transferred in this process?

Choices

Choice (5)Response

a.

b.

c.

d.

All of the above

e.

Question does not provide sufficient data or is vague

Question number: 681

» Thermodynamics

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MCQ▾

Question

A mixture of of water and of ice at is, in a reversible process, brought to a final equilibrium state where the water/ice ratio, by mass at . What is the entropy change of the system during this process?

(Latent heat of water is )

Choices

Choice (5)Response

a.

b.

c.

d.

e.

All of the above

Question number: 682

» Magnetic Field & Electromagnetism

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MCQ▾

Question

A coil having an axial length of and a radius of is pivoted in magnetic field having a flux density of . The current flowing through coil is . If the torque acting on the coil is , then how many number of turns of coil is there?

Choices

Choice (5)Response

a.

250

b.

360

c.

300

d.

180

e.

All of the above

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