In a Lab Experiment, a Student Brings Up the Rotational

question 91

Multiple Choice

In a lab experiment, a student brings up the rotational speed of a rotational motion apparatus to 30.0 rpm. She then allows the apparatus to slow down on its own, and counts 240 revolutions before the apparatus comes to a stop. The moment of inertia of the flywheel is 0.0850 kg∙m². What is the retarding torque on the flywheel?

• A) 0.0425 Nm
• B) 0.159 Nm
• C) 0.0787Nm
• D) 0.000278 Nm
• E) 0.0000136 Nm

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Definitions:

College GPA

The average result of all the grades achieved by a student throughout their college or university study period, usually on a scale from 0 to 4.0 or 5.0.

High School GPA

A cumulative measure that reflects the average grade of a student throughout their high school career, typically on a 4-point scale.

Regression Line

A line through a scatter plot of data points that best expresses the relationship between those points, often used in predictive analytics.

The Intercept

In the context of linear regression, it represents the value of the dependent variable when all independent variables are zero.