AP (Advanced Placement) Physics(B-C): Questions 42 - 44 of 921

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Question number: 42

» Torque and Equilibrium

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MCQ▾

Question

In the illustration, a fulcrum is placed at a point one third of the length of a thin rod from its left end, a mass is attached to the left end of the rod, and a mass is attached to the right end.

A first class lever

A First Class Lever

To produce rotational equilibrium, a third mass should be attached:

Choices

Choice (5)Response

a.

Halfway between the fulcrum and the right end of the rod

b.

To the left end of the rod

c.

To the right end of the rod

d.

Halfway between the fulcrum and the left end of the rod

e.

Question does not provide sufficient data or is vague

Question number: 43

» Electrostatics

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MCQ▾

Question

In figure, two equally and uniformly charged infinite planes are shown. The charge of each plane is . Which of the following line shown in figure is equipotential line for these two charged particles?

Two equal uniformly charged planes

Two Equal Uniformly Charged Planes

Choices

Choice (5)Response

a.

Line 3

b.

Line 2

c.

Line 1

d.

Line 4

e.

Question does not provide sufficient data or is vague

Question number: 44

» Force and Newton's Law of Motion

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MCQ▾

Question

In the illustration, a picture frame suspended by two cords is at rest. Determine the approximate value of the tension in cord 1.

Two cords attach a frame

Two Cords Attach a Frame

Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

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