Conservation of Angular Momentum: a Figure Skater Rotating at 5

question 35

Multiple Choice

Conservation of angular momentum: A figure skater rotating at 5.00 rad/s with arms extended has a moment of inertia of 2.25 kg ∙ m². If the arms are pulled in so the moment of inertia decreases to 1.80 kg ∙ m², what is the final angular speed?

• A) 2.25 rad/s
• B) 4.60 rad/s
• C) 6.25 rad/s
• D) 1.76 rad/s
• E) 0.810 rad/s

Identify the conditions under which individuals or entities would benefit from specialization and trade.

Explain the function of money as a medium of exchange in facilitating trade.

Understand the basics of barter system and its limitations compared to money-based trade.

Analyze scenarios to determine respective advantages in different tasks or activities.

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Definitions:

Moderator Variables

Variables that can alter the strength or direction of the relationship between an independent and a dependent variable in research.

Social Psychological Research

The scientific study focusing on how individuals think, feel, and behave in social contexts.

Situational And Personality Variables

These variables relate to the external circumstances (situational) and internal factors (personality) that influence an individual's behavior and responses in different contexts.

Accessible Attitude

An attitude that can be easily and quickly brought to mind from memory.