Suppose That a Steel Bridge, 1000 M Long, Were Built

question 11

Multiple Choice

Suppose that a steel bridge, 1000 m long, were built without any expansion joints. Suppose that only one end of the bridge was held fixed. What would the difference in the length of the bridge be between winter and summer, taking a typical winter temperature as 0°C, and a typical summer temperature as 40°C? The coefficient of thermal expansion of steel is 10.5 × 10^-6K^-1.

• A)0.42 m
• B)0.11 mm
• C)0.11 m
• D)0.42 mm
• E)0.37 cm

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Definitions:

Sigmund Freud

Originating from Austria, this neurologist created psychoanalysis, a therapeutic approach to address mental illness via conversation with a psychoanalyst.

Psychology

The scientific study of the mind and behavior, exploring various aspects from biological foundations to social influences.

Study of Consciousness

The examination of the nature and properties of the state of being aware of and able to think about oneself and the environment.

John Watson

An American psychologist who is considered one of the founders of behaviorism, emphasizing the study of observable behaviors rather than the mind.