AP (Advanced Placement) Physics(B-C): Questions 751 - 754 of 920

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Question number: 751

» Work, Energy and Power

MCQ▾

Question

A toy is moving with constant velocity of on a surface. If the coefficient of friction between the toy and the surface is , how much constant power is required to keep the toy moving with same constant velocity?

(Take )

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 752

» Linear Momentum

MCQ▾

Question

If a force of exerted on an object of mass for and its velocity becomes , then what would be the initial velocity of the object?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

Question number: 753

» Light & Optics

MCQ▾

Question

When white light travels from air into a glass prism and is dispersed into colors:

Choices

Choice (5) Response

a.

Green light changes wavelength more than blue

b.

Blue light refracts over a smaller angle than red

c.

All frequencies of light travel at the same speed

d.

Blue light has a lower speed than red

e.

Question does not provide sufficient data or is vague

Question number: 754

» Magnetic Field & Electromagnetism

MCQ▾

Question

Two straight parallel wires carrying currents of and . The distance between these two wires is . What is the magnetic force per unit length between these two wires?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

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