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Suppose that a steel bridge,1000 m long,was built without any expansion joints and 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 0.00°C,and a typical summer temperature as 40°C? The coefficient of thermal expansion of steel is .
Operational Definition
A specific, measurable definition of a concept that allows for empirical research and testing.
Self-Consciousness
A psychological state where an individual is acutely aware of themselves, their actions, and how they might be perceived by others.
Experimental Hypothesis
A statement predicting the relationship between variables in an experimental design, specifically regarding how an independent variable will affect a dependent variable.
Operational Definitions
The process by which researchers specifically define variables in practical, measurable terms to clarify how those variables will be observed and measured in a study.
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