When a Steel Cookie Sheet Is Placed in an Oven $$\Delta _ { A } = A _ { 0 } \gamma \Delta T$$

question 28

Essay

When a steel cookie sheet is placed in an oven and heated up, it expands due to the
temperature change.The change in area of the cookie sheet is modeled using the following
equation: $$\Delta _ { A } = A _ { 0 } \gamma \Delta T$$
where
$$\begin{array} { l } \Delta _ { A } = \text { change in area in } \mathrm { mm } ^ { 2 } \\A _ { 0 } = \text { original area in } \mathrm { mm } ^ { 2 } \\\gamma = \text { area coefficient of thermal expansion } \\\Delta _ { T } = \text { change in temperature in } { } ^ { \circ } \mathrm { C }\end{array}$$
What is the appropriate unit for $\gamma$ if the preceding equation is to be homogeneous in units?

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Definitions:

Twin Studies

Research studies that compare the similarities and differences between monozygotic (identical) and dizygotic (fraternal) twins to understand genetic and environmental influences on traits.

Personality Traits

Enduring characteristics or patterns of behavior that define an individual's responses across various situations.

Behavioral Genetics

The field of study that examines the role of genetic and environmental factors in shaping behaviors, personalities, and traits.

Personality Traits

Enduring characteristics that describe an individual's behavior, such as openness, conscientiousness, extraversion, agreeableness, and neuroticism.