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If the blade length is 56.7 m, wind speed 14.1 m/s and air density is 1.23 kg/m3, then the wind power in kW is

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter14: Fluid Mechanics

Section: Chapter Questions

Problem 14.19P: Normal atmospheric pressure is 1.013 103 Pa. The approach of a storm causes the height of a mercury...

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Debye Theory of Solids

In solid-state physics, debye theory is used to estimate the phonons contributing to the specific heat capacity in a solid. It explains that the specific heat is a consequence of the vibrations of the atomic lattice of the solid, which is in contrast to the Einstein model. In the Einstein model, solids are treated as independent, non-interacting quantum harmonic oscillators. This model clearly explains the low-temperature dependence of the heat capacity, which is proportional to T3. This is known as Debye T3 law.

Question

If the blade length is 56.7 m, wind speed 14.1 m/s
and air density is 1.23 kg/m3, then the wind
power in kW is
O 11094.73
O 1234.89
O 17411.91
O 307.09

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