When a Fan Is Turned Off,its Angular Speed Decreases from 10

question 21

Multiple Choice

When a fan is turned off,its angular speed decreases from 10 rad/s to 6.3 rad/s in 5.0 s.What is the magnitude of the average angular acceleration of the fan?

• A)0.86 rad/s²
• B)0.74 rad/s²
• C)0.37 rad/s²
• D)11 rad/s²
• E)1.2 rad/s²

Understand the implications of the Hawthorne Effect for research methodologies.

Recognize the assumptions underlying the scientific study of group dynamics.

Differentiate between scientific and nonscientific approaches to studying group behavior.

Understand the applicability of observational methods in studying online groups.