The density of air under normal conditions is about 3 1.2 kg / m. For a wind speed of 10 m/s, find (a) the actual power carried in the wind; (b) the maximum power (Betz limit) extractable by a wind turbine with a blade area of 10 m2; and (c) the actual power extracted by a wind turbine with a blade area of 10 m2 and a power coefficient of 0.46.
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