A Thin, Circular Disc Is Made of Lead and Has

question 29

Multiple Choice

A thin, circular disc is made of lead and has a radius of 0.0350 cm at 20.0 °C. Determine the change in the area of the circle if the temperature is increased to 625.0 °C. The coefficient of linear thermal expansion for lead is 29.0 × 10^-6/C°.

• A)4.33 × 10^-5 cm²
• B)1.36 × 10^-4 cm²
• C)1.89 × 10^-4 cm²
• D)3.19 × 10^-4 cm²
• E)5.92 × 10^-4 cm²

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Definitions:

Sympathetic Nervous System

Part of the autonomic nervous system that activates the body's rapid involuntary response to dangerous or stressful situations.

Parasympathetic Nervous System

Part of the autonomic nervous system responsible for conserving energy and promoting relaxation and recovery processes in the body.

Action Potential

A rapid increase and subsequent decrease in voltage or electrical charge across a cellular membrane, leading to nerve signal transmission.

Neural Impulse

An electrical signal that travels along a neuron, enabling communication within the nervous system.