The kinetic energy of the air travelling at 20m/s, which passes through
the circular area in 1 second is 5.4 x 10⁵ J.
What is kinetic energy?
The kinetic energy of an object is associated with its motion. It can be related to the mass and velocity as
K.E = 1/2 mv²
Given the wind is blowing directly towards the wind turbine at a speed of 20 m/s. At this wind speed, 7500 kg of air passes every second through the circular area swept out by the blades.
Substitute the values, we have
K.E = 1/2 x 7500 x (20)²
K.E = 15 x 10⁵ J
Hence, the kinetic energy of the air travelling at 20m/s, which passes through the circular area is 15 x 10⁵ J.
To know more about kinetic energy, refer: brainly.com/question/12669551
#SPJ4
<u><em>[NOTE: THIS IS AN INCOMPLETE QUESTION. THE CMPLETE QUESTION IS: the wind is blowing directly towards the wind turbine at a speed of 12 m/s. at this wind speed, 7500 kg of air passes every second through the circular area swept out by the blades. Calculate the kinetic energy of the air travelling at 12m/s, which passes through the circular area in 1 second.]</em></u>
Answer:
In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.
Explanation:
The right answer is Logos. This concept refers to the group provided by Sam Leith about the 3 methods of persuasion: Ethos, Logos, and Pathos.
- Ethos refers to the establishment of authority when speaking about the subject.
- Logos refers to the logical argument that is made during the speech.
- Pathos refers to the emotional component with which you try to connect with the public.
I hope my answer can help you.
The correct answer is farmers
Commoners, in their origin, comprised a layer of free workers who were not tied to the power and protection of landowners. Throughout Roman history, this class has suffered a strong marginalization of institutions and within Roman culture. Because they were not economically tied to large land holdings, the commoners devoted themselves to trade, crafts and free labor.
With the establishment of the Republic, the commoners were still a class without political rights. The first government agencies had only members of the Roman aristocracy. However, the expansion of economic activities in Rome meant that part of the plebeian class was enriched by trade. At the same time, many commoners did not support the punishments and demands of a governmental system where they had no representation.
Answer:
Checks and balances
Explanation:
The system of checks and balances allows each branch of government to have a say in how the laws are made.