AP (Advanced Placement) Physics(B-C): Questions 65 - 67 of 921

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Question number: 65

» Gravitation and Circular Motion

MCQ▾

Question

When a satellite is in uniform circular orbit around Earth, what are the forces that must be exerted on the satellite to keep it in orbit?

Choices

Choice (5) Response

a.

The satellite needs no forces exerted on it to remain in orbit

b.

The gravitational force of Earth on the satellite and a centripetal force

c.

The gravitational force of Earth on the satellite and a horizontal force to keep it moving

d.

Only the gravitational force of Earth on the satellite

e.

All of the above

Question number: 66

» Force and Newton's Law of Motion

MCQ▾

Question

Three objects of equal mass are positioned on a coordinate plane at the coordinates and . The center of mass on the plane for the system of three objects would be located at the point:

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

Question number: 67

» Torque and Equilibrium

MCQ▾

Question

In the illustration, a wire with tension helps support a horizontal wooden beam with mass that has a mass attached to its end. The beam has a length and is attached to the wall so that the wire makes a angle. Which of the following expressions could be used to determine the tension in the wire?

A mass m hangs by wire

A Mass M Hangs by Wire

In figure a mass m hangs by a wire with tension T helps support a horizontal wooden beam.

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

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