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

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## Question number: 158

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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 ?

### Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

## Question number: 159

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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

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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?

### 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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