Answer:
The electric power generated by the wind turbine is 1105.84 kWh
The amount of electric energy generated is 26540.17 kWh
The revenue generated per day is $2388.62
Explanation:
Consider a wind turbine with a blade
Span diameter of 100 m installed at a site
subjected to steady winds at 8 m/s
l.e wind speed v = 8 m/s
Span diameter d = 100 m
A, sweap area = πd² / 4
= π x 100² / 4
= 7853.98 m²
Lets solve for wind speed v = 8 m/s
Density of Area ρ = 1.25 kg/m³
η = 44%
P = 1/2 ρAv³η
= 1/2 x 1.25 x 785.98 x 8³ x 44/100
= 1/2 x 1.25 x 7853.98 x 512 x 0.44
= 1105840.38
= 1.10584038 mw
= 1105.84038 kWh
= 1105.84 kWh
Energy generated by wind turbine per day
⇒ P x H
= 1105.84038 x 24
= 26540.16912 kwh
= 26540.17 kwh
Revenue generated per day = Energy x 0.09 kwh
= 26540.16912 x 0.09
= $2388.615
= $2388.62
Answer: The accurate statement which describes the transmission of sound through various medium is D.
Explanation:
Sound is longitudinal wave in which the vibration of particles travels parallel to the propagation of the motion of the wave. It requires a medium to travel. It consists of compression and rarefaction.
Sound insulator prevents the sound to travel for example plastic, wood etc. Sound travels faster in solid medium than in liquid medium. Sound travels faster in liquid than in gas. Less elastic material absorbs sound for example paper in compare to inelastic material.
Therefore, the accurate statement which describes the transmission of sound through various medium is "Sound insulators prevent sound from being transmitted better than elastic solids.
Igneous rocks are formed from solidification and cooling of magma. The magma can be obtanied from partial melts of pre-existing rocks in either the planet's mantle or crust. Plutonic or intrusive rocks area result of when the magma cools and crystallizes slowly within the Earth's crust. A example is granite.
Answer:
the awnser is a, just did a test with that question
Answer:
Illusions indicate that the brain does not totally rely on the eye to make visual perceptions of reality. It sometimes generates perceptions of reality based on assumptions of how it should be.
Explanation:
Our brains and eyes together with the optical nerves linking them together, form part of the complex visual system of the body.
An illusion occurs when there is a mismatch between the perceived reality by the brain and the actual reality of what exists. Whenever this happens, it shows that some of the time, the brain does not always rely on a complete optical signal/information from the eye in order to make a perception. The brain at times tends to "complete the image" using the little information available alongside personal experiences and this often leads to misperception.