The right option is; d. the average American watches 4 hours of television per day.
A sedentary lifestyle is a style of living which involves increased amount of daily sitting or lying down such as when watching television, when playing video games, when reading, or working on the computer. A sedentary lifestyle can contribute to negative health problems such depression, diabetes, increased anxiety, and cardiovascular disease.
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.
Learn more about Boundary Layer Thickness on:
brainly.com/question/15344498
#SPJ4
<span>Evidence for Evolution During and since Darwin's time, people have been looking for and studying evidence in nature that teaches them more about evolution. Some types of evidence, such as fossils and similarities between related living organisms, were used by Darwin to develop his theory of natural selection, and are still used today. Others, such as DNA testing, were not available in Darwin's time, but are used by scientists today to learn more about evolution.<span>Five types of evidence for evolution are discussed in this section: ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos. Another important type of evidence that Darwin studied and that is still studied and used today is artificial selection, or breeding.</span><span>
</span><span>Hope it helps :)</span><span>
</span></span>
Yes. <span>“Congress shall make no law abridging (limiting) the freedom of speech," as the First Amendment says :)</span><span><span>
</span></span>
The progressive reform that President Woodrow Wilson was unable to establish was reducing import tariffs.
<h3>What is a progressive reform?</h3>
These are the reforms that the federal government of a place would have to put in place so as to do away with certain practices that are seen to be unfair and unethical which may have negative impacts.
The issue of the import tariffs was not implemented by Wilson. Instead the president that was in charge of this reform was president Roosevelt which was signed in the year 1934 as the Reciprocal Trade Agreements Act.
Read more on progressive reforms here:
brainly.com/question/25535676
#SPJ1