The potential power output in Watts of a windmill can be approximated by
P=12CρAv3where C is the capacity, ρ is the air density, A is the swept area, and v wind speed. Use the power potential to find the potential power output in Watts of a windmill of blades 25 meters long operating with 10% capacity if the wind is blowing 5 meters per second with air density 1.21 kgm2. Round your answer to the nearest integer, if needed.
swept area= 1963.49

Question

The potential power output in Watts of a windmill can be approximated by
P=12CρAv3where C is the capacity, ρ is the air density, A is the swept area, and v wind speed. Use the power potential to find the potential power output in Watts of a windmill of blades 25 meters long operating with 10% capacity if the wind is blowing 5 meters per second with air density 1.21 kgm2. Round your answer to the nearest integer, if needed. 
swept area= 1963.49

anonymous · Answer

Correct

anonymous · Answer

No the swept area is "A" which you plug into the equation

kropot72 · Answer

$$\large P=12\times0.1\times1.21\times1963.49\times5^{3}=you\ can\ calculate$$

anonymous · Answer

i get 14848.89

kropot72 · Answer

I get a much higher result than that.

anonymous · Answer

oh and its not 12 its 1/2

anonymous · Answer

its p= 1/2* 0.1* 1.21* 1963.49*125

kropot72 · Answer

Yes, with your correction I get 14.849 kW (rounded to the nearest watt.

anonymous · Answer

is it 14,849 or 14.849?

kropot72 · Answer

14.849 kW or 14,849 W.