An Object's Cooling Constant, K, Is Often Taken to Be

question 37

Multiple Choice

An object's cooling constant, k, is often taken to be proportional to the its surface area. An iron ball cools from 350^oC to 100^oC in 30 seconds in a fast flowing stream of 30^oC water. Use Newton's Law of Cooling to estimate how cool a similar volume of hot iron would become in 30 seconds if it were in the shape of a rod with surface area 3 times larger than the ball's.

• A) 30.7^oC
• B) 75.9^oC
• C) 30.0^oC
• D) 33.3^oC

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Definitions:

Avoidant Personality Disorder

A psychological disorder defined by a persistent pattern of severe introversion, a sense of not being good enough, and a high sensitivity to being rejected.

Social Behaviors

Actions that are conducted in response to the presence or behavior of others, guided by social norms, culture, or individual motivations.

Psychodynamic Theorists

Scholars or clinicians who follow a psychological perspective emphasizing unconscious processes and childhood experiences in shaping behavior and personality.

Avoidant Personality Disorder

A mental health condition characterized by a long-standing pattern of extreme shyness, feelings of inadequacy, and sensitivity to rejection.