AP (Advanced Placement) Physics(B-C): Questions 877 - 880 of 920

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Question number: 877

» Gravitation and Circular Motion

MCQ▾

Question

A car of mass turns a corner of radius on a level road with the constant speed of , the centripetal force necessary to keep the car in the turn. What is the coefficient of kinetic friction acted between car and the road?

Choices

Choice (5) Response

a.

0.125

b.

0.625

c.

0.250

d.

8.1

e.

Question does not provide sufficient data or is vague

Question number: 878

» Magnetic Field & Electromagnetism

MCQ▾

Question

A conducting wire of length is carrying a current of and it is placed at angle to magnetic field. If the force acting on the conducting wire is , then what is the flux density of the magnetic field?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

Question number: 879

» Force and Newton's Law of Motion

MCQ▾

Question

A box is pulled across a horizontal surface. If the horizontal pulling force on the box is , when , then what is the friction force of the surface on the box?

Choices

Choice (5) Response

a.

b.

0

c.

d.

e.

All of the above

Question number: 880

» Torque and Equilibrium

MCQ▾

Question

A box of mass is placed on an inclined ramp of angled with horizontal. What is the friction force of the ramp on the box in Newton?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

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