A Steel String Guitar Is Strung So That There Is

question 15

Multiple Choice

A steel string guitar is strung so that there is negligible tension in the strings at a temperature of 24.9 °C. The guitar is taken to an outdoor winter concert where the temperature of the strings decreases to -15.1 °C. The cross-sectional area of a particular string is 5.5 × 10^-6 m². The distance between the points where the string is attached does not change. For steel, Young's modulus is 2.0 × 10¹¹ N/m²; and the coefficient of linear expansion is 1.2 × 10^-5/C°. Use your knowledge of linear thermal expansion and stress to calculate the tension in the string at the concert.

• A)530 N
• B)240 N
• C)120 N
• D)60 N
• E)30 N

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Definitions:

Hemispheres

Refers to the two halves of the brain or Earth, where each serves distinct functions: for the brain, the left and right hemispheres; for Earth, the Northern and Southern hemispheres.

Inhibition

The act of restraining, preventing, or hindering a process, action, or expression, often in psychological or physiological contexts.

Muscular Coordination

The ability to move and utilize muscles smoothly and efficiently to perform tasks.

Control Processes

Psychological functions that manage thoughts, emotions, and actions in the pursuit of goal achievement.