The Coefficient of Linear Expansion of Steel Is 12 ×

question 42

Multiple Choice

The coefficient of linear expansion of steel is 12 × 10^-6 K^-1. What is the change in length of a 25-m steel bridge span when it undergoes a temperature change of 40 K?

• A) 1.2 cm
• B) 1.4 cm
• C) 1.6 cm
• D) 1.8 cm
• E) 2.0 cm

Understand the relationship between fear appeals in persuasive messages and their effectiveness.

Comprehend the principles underlying attraction and friendship formation, including proximity and similarity.

Describe how situational factors such as making a large request before a small one can increase compliance.

Know the psychological mechanisms behind reacting more favorably to a request or product after being exposed to a higher initial price or larger initial request.

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Definitions:

Temperament Traits

Characteristics that determine an individual's typical responses to the environment, often considered innate or biologically based.

Emotional Behavior

Actions and reactions that are influenced by and express one's emotions, which can affect interpersonal relationships and decision-making processes.

Motivation

The psychological drive or force that initiates, guides, and maintains goal-oriented behaviors.

Factor Analysis

A statistical method used to identify underlying variables, or factors, that explain the pattern of correlations within a set of observed variables.