# AP (Advanced Placement) Physics(B-C): Questions 666 - 669 of 920

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## Question number: 666

MCQ▾

### Question

What is the electric current, when net charge of moves from a given point in time ?

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

## Question number: 667

MCQ▾

### Question

A student is making a refracting telescope from two lenses. First, the student tests each lens and determines that the objective lens focuses light from distant objects at a point from the lens. The eyepiece lens focuses light from distant objects at a point from the lens. When constructing the telescope, the lenses need to be placed at each end of a tube that is how long?

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

## Question number: 668

MCQ▾

### Question

A car left skid marks that were in length. Assuming that the car skidded to a stop with a constant acceleration of , then what was the speed of the car before it began to skid?

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

## Question number: 669

MCQ▾

### Question

A box of is held stationary on inclined surface by a string connected to the wall. If the force of friction at contact surface of the box and inclined surface, is , then tension of the string is:

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

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