The distance between the wall's normal to the point where the flow velocity has virtually attained the "asymptotic" velocity is the boundary layer thickness. Laminar and turbulent boundary layer flow are two distinct flow types. flow in a laminar boundary layer.
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What is a boundary layer?</u></h3>
- The thin layer of fluid that forms immediately around a bounded surface as a result of fluid flowing over the surface is known as a boundary layer.
- A no-slip boundary condition is created as a result of the fluid and wall interaction (zero velocity at the wall).
- After that, the flow velocity above the surface steadily rises until it reaches the bulk flow velocity again.
- The term "velocity boundary layer" refers to the thin layer of fluid whose velocity has not yet recovered to that of the main flow.
The turbulent boundary layer has swirls or "eddies," whereas the laminar boundary has a fairly smooth flow.
- Laminar flow is less stable than turbulent flow but produces less skin friction drag.
- The area of a predominantly turbulent flow that is close to a no-slip boundary and where viscous shear stresses play a significant role is known as the laminar sublayer, also known as the viscous sublayer.
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Although John Locke contributed to the development of many significant Enlightenment theories, the social contract theory is likely the one with which he is most strongly connected. According to the social contract hypothesis, everyone in a society must abide by a set of moral and political principles in order to coexist.
Thus, Option B is correct.
What is the social contract theory explain?
According to the social contract hypothesis, a society's members must all uphold a certain set of moral and political principles in order to coexist. Some people think that by upholding the social compact, we can live moral lives of our own free will instead than as a result of commands from a higher force.
The social contract is not recorded and is passed on from parent to child. In exchange for the advantages of our society, such as safety, survival, education, and other necessities of life, we must obey the law and certain moral norms. The social contract hypothesis is still significant in our contemporary political philosophy when it comes to the issue of whether political authority is legitimate.
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Full Question :
Which theory is most closely associated with john locke?
A divine right theory
B social contract theory
C evolution theory
D force theory
Answer:
The correct answer is option D.
Explanation:
Living on less than $1.25 a day gives 40% of India's population one of the lowest standards of living in the world. As a result, in India, the population face serious social issues such as high disease and death rates, poor educational standards, no birth planification what leads to overpopulation, etc.
