A Ventilation Fan Has Blades 0

question 77

Multiple Choice

A ventilation fan has blades 0.25 m long rotating at 20 rpm.What is the centripetal acceleration of a point on the outer tip of a blade?

• A)1.1 m/s²
• B)0.87 m/s²
• C)0.55 m/s²
• D)0.23 m/s²

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Definitions:

Prediction Interval

A range of values that is likely to contain the value of a variable for an individual prediction, taking into account the uncertainty around the estimate.

Residual

The difference between an observed value and the value predicted by a model.

Scatter Diagram

A scatter diagram, or scatter plot, is a type of plot or mathematical diagram using Cartesian coordinates to display values for typically two variables for a set of data, indicating the relationship between them.

Fitted Value

A numerical estimate or prediction obtained from a regression model that corresponds to a specific set of explanatory variables.