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A wind turbine has a blade length (radius) of 7.1 m. The wind velocity is 5.6 m/s. The efficiency is 9.2%. What is the

A wind turbine has a blade length (radius) of 7.1 m. The wind velocity is 5.6 m/s. The efficiency is 9.2%. What is the power output of the wind turbine? Assume a density of air of 1.29 kg/m. What is the output in kW? What would you estimate the energy output per year of the turbine could be if the wind velocity was steady at 5.6 m/s? Give the answer in kWh/year.

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