AP (Advanced Placement) Physics(B-C): Questions 344 - 345 of 921

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Question number: 344

» Linear Momentum

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MCQ▾

Question

A nickel atom sliding on a smooth surface collides elastically and head-on with a second nickel atom that is stationary. What is the motion of the nickels after the collision?

Choices

Choice (5)Response

a.

The first nickel atom stops where the second nickel atom had been sitting, and the second nickel atom starts moving in a straight line with the first nickel’s velocity.

b.

Both nickel atoms move ahead along trajectories that are perpendicular to each other.

c.

The first nickel atom bounces back and moves backward in a straight line with velocity equal to the negative of its initial velocity.

d.

Both nickel atoms move forward along a line, with the first nickel atom moving more slowly than the second nickel atom.

e.

None of the above

Question number: 345

» Periodic Motion, Mechanical Waves & Sound

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MCQ▾

Question

In the illustration, there are two small openings on the left spaced apart. Waves coming from the left go through the openings in the same phase and produce an interference pattern with a central maximum at point and a first order maximum at point . Assuming that point is the midpoint between the openings, line is from the opening, and point is from point , what is a possible wavelength of the waves?

Interference of two waves

Interference of Two Waves

Choices

Choice (5)Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

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