A Square Hole,30 Cm on Each Edge,is Cut in the Center

question 21

Multiple Choice

A square hole,30 cm on each edge,is cut in the center of a square aluminum plate 1 m on a side.The coefficient of linear expansion of aluminum is 2.4 $\times$ 10^-5/Cº.If the plate is heated 25 ºC above the starting temperature,the area of the hole

• A)increases by 1.1 cm².
• B)increases by 0.54 cm².
• C)increases by 0.00060 cm².
• D)decreases by 0.54 cm².
• E)decreases by 0.00060 cm².

---

Definitions:

Amygdala

A section of the brain involved in experiencing emotions, such as fear and pleasure.

Hippocampus

A part of the brain associated with memory formation, organization, and storage.

Basal Ganglia

A group of structures in the brain that help control movement, coordination, and learning.

Frontal Lobes

Portions of the brain located behind the forehead that are responsible for complex cognitive functions, including decision making, problem solving, and controlling behavior.