Plot each of the three elevations as a point on a vertical number line. Label each point with its numerical value
1 answer:
What is Elevation ?
When the height of a point is its vertical distance above or below the surface of a reference plane you have selected, it is called the elevation of that point. When the height of a point is its vertical distance above or below mean sea level , it is called the altitude of the point.
Elevation is defined as the height above the ground or other surface, or a place or position of height. An example of elevation is a plane flying at 36,000 feet above the ground. An example of elevation is a pope being raised to the position of saint.
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Common difference of the arithmetic sequence, is
Solution:
From Bernoulli equation
ρ
+ ρgh =
ρ
, where ρ is density of water, h – height difference and
and
are the velocities in upper and lower cross sections correspondingly. We take into account that the pressure in both cross-sections is the same and equal to the atmospheric one.
From the continuity and assuming water incompressible:
=
, where
and
are the corresponding cross-sections. As the lower diameter is twice as low as the upper one, we can conclude that
Inserting it back into Bernoulli equations produces:
and the flow rate is