A Wind of Velocity 10 M/s Is Blowing Through a Wind

question 3

Multiple Choice

A wind of velocity 10 m/s is blowing through a wind generator with blade radius 5.00 metres. What is the maximum power output if 30.0% of the wind's energy can be extracted? $\rho$ air = 1.25 kg/m3.

• A)7.20 kW
• B)14.7 kW
• C)21.3 kW
• D)29.4 kW
• E)39.6 kW

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Definitions:

Dependent-Samples T-Test

A statistical procedure used to compare means from the same group at two different times or under two different conditions.

Regression

A statistical method that models the relationship between a dependent variable and one or more independent variables, predicting the former based on the latter.

Analysis of Variance

A statistical method used to test differences between two or more means by analyzing variance.

Independent Samples T-Test

A statistical test used to compare the means of two independent groups in order to determine if there is a statistically significant difference between them.