A Person Is Walking Outdoors on a Cold Day When

question 40

Multiple Choice

A person is walking outdoors on a cold day when the temperature is -20°C.He is breathing at the rate of 16 breaths per minute,and each time he breathes in he inhales 0.0050 m³ of air.At what rate does he lose heat from breathing if the air in his lungs is heated to body temperature (37°C) before it is exhaled? The specific heat of air is 1020 J/kg ∙ K and the density of air is 1.29 kg/m³.

• A)60 W
• B)90 W
• C)100 W
• D)150 W
• E)300 W

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Definitions:

Destructive Stress

Excessive stress that negatively impacts an individual's mental or physical health, potentially leading to burnout or other health issues.

Reduced Performance

This refers to a situation where output or efficiency is below expected or previously achieved levels.

Absenteeism

The habitual non-presence of an employee at their job, often without good reason, which can impact productivity and morale.

Job Burnout

A feeling of physical and mental exhaustion from work stress.