AP (Advanced Placement) Physics(B-C): Questions 878 - 881 of 921

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Question number: 878

» Magnetic Field & Electromagnetism

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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

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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.

c.

d.

0

e.

None of the above

Question number: 880

» Torque and Equilibrium

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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.

Question does not provide sufficient data or is vague

Question number: 881

» Torque and Equilibrium

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MCQ▾

Question

A balanced system of four spheres

A Balanced System of Four Spheres

Four spheres are hanging on a system, as shown in above figure. The distance between spheres and the pivots are labeled in figure. On left side, two identical spheres are hanged. If whole scale system is in balanced, then what is the value of mass of two identical sphere?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

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