Physics · Wind Energy
A windmill has a 10-m diameter and an efficiency of 40%. If the wind velocity at normal temperature and pressure is 10 m/s and the density of air is 1.29 kg/m 3 , the expected power output from the windmill is approximately:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 110.0 kW
- 210.27 kW
- 320.27 kW✓
- 420.0 kW
Correct answer
20.27 kW
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