AP (Advanced Placement) Physics(B-C): Questions 158 - 160 of 921

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Question number: 158

» Electrostatics

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MCQ▾

Question

Two particles, each carrying charge of , are placed on the at and , as shown in figure. What is the net electric force due to the two charges on a particle with a charge of placed at point , which is located at position ?

Two point charges placed on a line

Two Point Charges Placed on a Line

Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

Question number: 159

» Electrostatics

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MCQ▾

Question

A point charge of is placed at origin, another charge of is placed on x – axis at , and a third point charge of is placed on y – axis at (0,3m). What is the magnitude of net force applied on point charge that is at origin, due to other two point charges?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

All of the above

Question number: 160

» Force and Newton's Law of Motion

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MCQ▾

Question

A lever is set up to lift a heavy box, as in the illustration. The box is set on one end of a board, and a large rock is placed under the board to act as a fulcrum. A force is applied downward at the opposite end of the board to lift the box. The box is at a distance from the rock, and the force is applied at a distance of from the rock. When the box is lifted a distance d at a speed υ, what are the distance and speed for the force at the other end?

A lever is set up lift a box

A Lever is Set up Lift a Box

Choices

Choice (5)Response

a.

The distance is and the speed is .

b.

The distance is and the speed is .

c.

The distance is and the speed is .

d.

The distance is and the speed is .

e.

None of the above

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