A Piece of Thin Wire of Mass M and Length

question 39

Multiple Choice

A piece of thin wire of mass m and length 3a is bent into an equilateral triangle. Find the rotational inertia (moment of inertia) of the wire when it is rotating about an axis perpendicular to the plane of the triangle and passing through one of its vertices.

• A) ma²
• B) ma²
• C) ma²
• D) ma²
• E) ma²

Understand the significance of technological and social changes on American society in the 1920s.

Debate the contributions and challenges faced by women during the 1920s.

Evaluate the impact of international commerce and mass consumer culture on American economic growth during the 1920s.

Understand the foreign policy approaches of key U.S. presidents during the early 20th century.

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Definitions:

Cognitive Dissonance Theory

A theory suggesting that people experience discomfort (dissonance) when holding conflicting cognitions and are motivated to reduce this discomfort by altering attitudes, beliefs, or behaviors.

Outgroups

Groups to which a person does not belong or identify, often viewed as different or outside the social norm.

Mortality Salience

The awareness of one's own mortality, which can provoke various psychological responses and influence behaviors and attitudes toward life.

Empathetic

Having the ability to understand and share the feelings of another, showing empathy.