Canada is the country that forms most of the Northern border of the United States. I recommend looking at the map and seeing what is directly above the 48 contiguous states.
The boundary layer thickness is usually defined as the distance from the wall to the point where the flow velocity reaches 99 % of the free stream value.
In the very thin boundary layer associated with free stream flows with high Reynolds numbers, a steep rise in velocity occurs perpendicular to the wall.
Boundary layer thickness = 0.37*Distance on x-axis/(Reynolds Number^(1/5))
δ = 0.37*x/(Re^(1/5))
This formula uses 3 Variables:
Variables Used
Boundary layer thickness - (Measured in Meter) - Boundary layer thickness is the distance normal to the wall to a point where the flow velocity has essentially reached the 'asymptotic' velocity.
Distance on x-axis - (Measured in Meter) - Distance on x-axis is the distance of point measured along x-axis form origin.
Reynolds Number - The Reynolds number is the ratio of inertial forces to viscous forces within a fluid which is subjected to relative internal movement due to different fluid velocities. A region where these forces change behavior is known as a boundary layer, such as the bounding surface in the interior of a pipe.
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There's no document provided, I'll answer to the best of my knowledge
The abolitionist John Brown attempted to garner attention and do his part to abolish slavery by murdering three individuals who supported slavery, and later tried to host an armed uprising where he would lead slaves to raid a federal army in Harper's Ferry. The attack was unsuccessful, and he was later executed. His actions were radical, and in my opinion very misguided and would only lead to more violence.
That is my take on it, though I recommend you get your own opinion because that is a very opinionated topic.
He wrote that as time progressed, race discrimination started to gradually decreased as people started to care about social mobility and Global economic structuring.
The difference of treatment that people felt based on race in our current society is way better than it has in the past
hope this helps
