# AP (Advanced Placement) Physics(B-C): Questions 826 - 830 of 921

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## Question number: 826

MCQ▾

### Question

If of work are done on 2 mole monoatomic gas and the gas does no work and no heat is added or taken away from the gas, then change in temperature is:

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

## Question number: 827

MCQ▾

Value of is:

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

## Question number: 828

MCQ▾

### Question

The mass of a hypothetical planet is three times the mass of earth, and its radius is twice the radius of earth. If an object weight on the surface of earth, how much would it weight on the surface of the hypothetical planet?

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

## Question number: 829

MCQ▾

### Question

The speed of air moving over the top of a thin airfoil, such as an airplane wing, is , and the speed of air moving under the airfoil is . If the area of surface is approximately , what is the lift force on the airfoil due to the moving air?

(Assume the density of air is . )

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

## Question number: 830

MCQ▾

### Question

In circuit diagram, two identical resistor of resistance , a capacitor, and a battery with a potential difference of are connected. When the switch is closed, the capacitor is charged for a very long time. What is the potential difference across the plates of the capacitor?

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above