The Density of a Certain Solid Is 7

question 2

Multiple Choice

The density of a certain solid is 7.2 × 10³ kg/m³,and its Young's modulus is 8.0 × 10¹⁰ N/m².What is the speed of sound in this material?

• A) 1.1 × 10⁷ m/s
• B) 5900 m/s
• C) 3700 m/s
• D) 3300 m/s

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Definitions:

Zimbardo

Refers to Philip Zimbardo, a psychologist known for conducting the Stanford prison experiment, which explored the effects of perceived power and authority on behavior.

Social Categorisation

The process by which individuals classify others into groups based on shared characteristics.

Social Creativity

Group-based behavioural strategies that improve social identity but do not directly attack the dominant group’s position.

Social Change

The transformation over time of cultural values, norms, and social structures, leading to significant shifts in society.