Answer:
Wind energy is converted to Mechanical energy which is then converted in to electrical energy
Explanation:
In a wind mill the following energy conversions take place
a) Wind energy is converted into Mechanical energy (rotation of rotor blades)
b) Mechanical energy is converted into electrical energy (by using electric motor)
This electrical energy is then used for transmission through electric lines.
The LCA process is a systematic, phased approach and consists of four components: goal definition and scoping, inventory analysis, impact assessment, and interpretation. The standards are provided by the International Organisation for Standardisation (ISO) in ISO 14040 and 14044, and describe the four main phases of an LCA: Goal and scope definition. Inventory analysis. Impact assessment.
Hope this is helpful
Answer:
![GM](https://tex.z-dn.net/?f=GM%3C0)
So the bouy does not float with its axis vertical
Explanation:
From the question we are told that:
Diameter ![d=2m](https://tex.z-dn.net/?f=d%3D2m)
Length ![l=2.5m](https://tex.z-dn.net/?f=l%3D2.5m)
Weight ![W=22kN](https://tex.z-dn.net/?f=W%3D22kN)
Specific weight of sea water ![\mu= 10.25kN/m^3](https://tex.z-dn.net/?f=%5Cmu%3D%2010.25kN%2Fm%5E3)
Generally the equation for weight of cylinder is mathematically given by
Weight of cylinder = buoyancy Force
![W=(pwg)Vd](https://tex.z-dn.net/?f=W%3D%28pwg%29Vd)
Where
![V_d=\pi/4(d)^2y](https://tex.z-dn.net/?f=V_d%3D%5Cpi%2F4%28d%29%5E2y)
Therefore
![22*10^3=10.25*10^3 *\pi/4(2)^2y\\\\\22*10^3=32201.3247y\\\\\y=1.5m](https://tex.z-dn.net/?f=22%2A10%5E3%3D10.25%2A10%5E3%20%2A%5Cpi%2F4%282%29%5E2y%5C%5C%5C%5C%5C22%2A10%5E3%3D32201.3247y%5C%5C%5C%5C%5Cy%3D1.5m)
Therefore
Center of Bouyance B
![B=\frac{y}{2}=0.26m\\\\B=0.75](https://tex.z-dn.net/?f=B%3D%5Cfrac%7By%7D%7B2%7D%3D0.26m%5C%5C%5C%5CB%3D0.75)
Center of Gravity
![G=\frac{I.B}{2}=2.6m](https://tex.z-dn.net/?f=G%3D%5Cfrac%7BI.B%7D%7B2%7D%3D2.6m)
Generally the equation for\BM is mathematically given by
![BM=\frac{I}{vd}\\\\BM=\frac{3.142/64*2^4}{3.142/4*2^2*0.5215}\\\\BM=0.479m\\\\](https://tex.z-dn.net/?f=BM%3D%5Cfrac%7BI%7D%7Bvd%7D%5C%5C%5C%5CBM%3D%5Cfrac%7B3.142%2F64%2A2%5E4%7D%7B3.142%2F4%2A2%5E2%2A0.5215%7D%5C%5C%5C%5CBM%3D0.479m%5C%5C%5C%5C)
Therefore
![BG=2.6-0.476\\\\BG=0.64m](https://tex.z-dn.net/?f=BG%3D2.6-0.476%5C%5C%5C%5CBG%3D0.64m)
Therefore
![GM=BM-BG\\\\GM=0.479m-0.64m\\\\GM=-0.161m\\\\](https://tex.z-dn.net/?f=GM%3DBM-BG%5C%5C%5C%5CGM%3D0.479m-0.64m%5C%5C%5C%5CGM%3D-0.161m%5C%5C%5C%5C)
Therefore
![GM](https://tex.z-dn.net/?f=GM%3C0)
So the bouy does not float with its axis vertical
Answer:
intrinsic semiconductors
Explanation:
An intrinsic semiconductor is also known as a pure conductor. In such a semiconductor there are no impurities, that is why it is said to be pure.
It has some of these properties:
1. Electrical conductivity is only based on temperature
2. The quantity of electrons is the same as the number of holes in the valence bond
3. Electrical conductivity is not on the high side
4. These materials exist in their pure forms.