Solid Bodies, Such as Mechanical Flywheels, Experience Stress When Rotating

question 68

Multiple Choice

Solid bodies, such as mechanical flywheels, experience stress when rotating. The stress s on a flywheel with uniform density d (kg/m³) and radius r (meters) is approximated by where is the rotational speed of the flywheel in radians per second. Estimate the percent increase in the stress if the rotational speed of a uniform flywheel is increased from 3917 to 4067 rad/s. [Note: you should be able to answer the question with the given information: no additional information is necessary.]

• A) 8%
• B) 3%
• C) 0.01%
• D) 4%

Identify the historical milestones and key figures in the development of psychology as a discipline.

Acknowledge the role of biological factors in psychology, as explained by biopsychologists or behavioral neuroscientists.

Comprehend the significance of cognitive processes and their impact on human behavior.

Understand the principles of behaviorism and its focus on observable behavior.