Answer:
4.3155 kW
Step-by-step explanation:
Given,
speed of wind when enters into the turbine, V = 12 m/s
speed of wind when exits from the turbine, U = 9 m/s
mass flow rate of the wind = 137 kg/s
According to the law of conservation of energy
Energy generated = change in kinetic energy
Hence,energy generated in 1 sec can be given by
![E\ =\ \dfrac{1}{2}.m.V^2\ -\ \dfrac{1}{2}.m.U^2](https://tex.z-dn.net/?f=E%5C%20%3D%5C%20%5Cdfrac%7B1%7D%7B2%7D.m.V%5E2%5C%20-%5C%20%5Cdfrac%7B1%7D%7B2%7D.m.U%5E2)
![=\ \dfrac{1}{2}\times 137\times 12^2\ -\ \dfrac{1}{2}\times 137\times 9^2](https://tex.z-dn.net/?f=%3D%5C%20%5Cdfrac%7B1%7D%7B2%7D%5Ctimes%20137%5Ctimes%2012%5E2%5C%20-%5C%20%5Cdfrac%7B1%7D%7B2%7D%5Ctimes%20137%5Ctimes%209%5E2)
![=\ 9864\ -\ 5548.5](https://tex.z-dn.net/?f=%3D%5C%209864%5C%20-%5C%205548.5)
= 4315.5 J
So, the power generated in 1 sec will be given by
![P\ =\ \dfrac{energy\ generated}{time}](https://tex.z-dn.net/?f=P%5C%20%3D%5C%20%5Cdfrac%7Benergy%5C%20generated%7D%7Btime%7D)
![=\ \dfrac{4315.5}{1}](https://tex.z-dn.net/?f=%3D%5C%20%5Cdfrac%7B4315.5%7D%7B1%7D)
= 4315.5 W
= 4.13 kW
So, the power generated will be 4.13 kW.
Answer:
0.1 seconds
Step-by-step explanation:
10/100=0.1
Answer:
p=6 Q=5 R=6
Step-by-step explanation:
Answer:
infinite
Step-by-step explanation:
Let the linear equation in two variables be ax+by+c=0
Put values
![\\ \sf\longmapsto 1a+3b+c=0](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%201a%2B3b%2Bc%3D0)
![\\ \sf\longmapsto a+3b+c](https://tex.z-dn.net/?f=%5C%5C%20%5Csf%5Clongmapsto%20a%2B3b%2Bc)
Hence for any values it has infinite number of solutions .
including x=1 and y=3