AP (Advanced Placement) Physics(B-C): Questions 9 - 12 of 921

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Question number: 9

» Electrostatics

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MCQ▾

Question

A metal sphere with a charge of comes into contact with a metal sphere of identical size that has a charge of . The spheres are then separated. What are the charges on the spheres after they are separated?

Choices

Choice (5)Response

a.

Each sphere has a charge of .

b.

Each sphere retains its original charge.

c.

Two spheres have zero net charge.

d.

Each sphere has a charge of .

e.

Question does not provide sufficient data or is vague

Question number: 10

» Force and Newton's Law of Motion

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MCQ▾

Question

At a distance of from Earth’s center, the acceleration due to gravity is about . What is the closest estimate of the acceleration due to gravity at a point from Earth’s center?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

Question number: 11

» Gravitation and Circular Motion

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MCQ▾

Question

Three objects are positioned along a line. Each has a mass of and an x coordinate as shown in the illustration. Which of the following is true for net gravitational force on one due to the other two objects?

Three objects are placed in a line

Three Objects Are Placed in a Line

Choices

Choice (5)Response

a.

b.

c.

d.

e.

All of the above

Question number: 12

» Electrostatics

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MCQ▾

Question

In figure, three positive charges of equal magnitude are placed at vertices of an equilateral triangle. At which point the electrostatic potentials due to each three charges are same?

Three positive charges

Three Positive Charges

Choices

Choice (5)Response

a.

Midpoint of side of triangle

b.

At point of charge

c.

Everywhere in triangle

d.

Orthocenter of triangle

e.

All of the above

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