A Ball of Mass 5

question 30

Multiple Choice

A ball of mass 5.0 kg is suspended by two wires from a horizontal arm that is attached to a vertical shaft, as shown in the figure. The shaft is in uniform rotation about its axis. The rate of rotation is adjusted until the tensions in the two wires are EQUAL. At that speed, the radial acceleration of the ball is closest to

• A) 4.9 m/s².
• B) 5.9 m/s².
• C) 6.9 m/s².
• D) 7.9 m/s².
• E) 9.9 m/s².

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Definitions:

Regression Analysis

A statistical method for modeling the relationship between a dependent variable and one or more independent variables by estimating equations that predict the dependent variable from the independent variables.

Potential Outliers

Potential outliers are data points that significantly differ from other observations in a dataset, potentially indicating a variation or error in measurement.

Statistical Software

Computer programs used for analysis of statistical data, facilitating calculation, graphical representation, and interpretation of results.

Regression Model

A statistical technique that determines the linear or non-linear relationship between a dependent variable and one or more independent variables.