Four Identical Particles (Mass of Each = 0

question 33

Multiple Choice

Four identical particles (mass of each = 0.24 kg) are placed at the vertices of a rectangle (2.0 m × 3.0 m) and held in those positions by four light rods which form the sides of the rectangle. What is the rotational inertia of this rigid body about an axis that passes through the center of mass of the body and is parallel to the shorter sides of the rectangle?

• A)2.4 kg⋅m²
• B)2.2 kg⋅m²
• C)1.9 kg⋅m²
• D)2.7 kg⋅m²
• E)8.6 kg⋅m²

Identify the most effective techniques for synthesizing research findings in psychology.

Comprehend the influence of age and practice on cognitive performance.

Acknowledge the role of cognitive styles and learning preferences in information processing.

Understand the concepts of reflective cognitive style and field dependence/independence.

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Definitions:

Fretting

Wear at the contact surfaces of two materials that occurs from repeated cyclical motion or vibration, often seen in electrical connections.

Thermal Cycling

A pattern of heating and cooling that, over time, can cause resistance to build up in electrical connections.

Amps

A unit of electric current, short for amperes, indicating the amount of electrical charge passing a point per second.

Voltmeter

An electrical measuring instrument used to measure the electrical potential difference between two points in an electric circuit.