Answer:
δu/δx+δu/δy = 6x-6x =0
9r^2
Explanation:
The flow is obviously two-dimensional, since the stream function depends only on the x and y coordinate. We can find the x and y velocity components by using the following relations:
u =δψ/δy = 3x^2-3y^2
v =-δψ/δx = -6xy
Now, since:
δu/δx+δu/δy = 6x-6x =0
we conclude that this flow satisfies the continuity equation for a 2D incompressible flow. Therefore, the flow is indeed a two-dimensional incompressible one.
The magnitude of velocity is given by:
|V| = u^2+v^2
=(3x^2-3y^2)^2+(-6xy)^2
=9x^4+18x^2y^2+9y^2
=(3x^2+3y^2)^2
=9r^2
where r is the distance from the origin of the coordinates, and we have used that r^2 = x^2 + y^2.
The streamline ψ = 2 is given by the following equation:
3x^2y — y^3 = 2,
which is most easily plotted by solving it for x:
x =±√2-y^3/y
Plot of the streamline is given in the graph below.
Explanation for the plot: the two x(y) functions (with minus and plus signs) given in the equation above were plotted as functions of y, after which the graph was rotated to obtain a standard coordinate diagram. The "+" and "-" parts are given in different colors, but keep in mind that these are actually "parts" of the same streamline.
<h2>
Answer:</h2>
<h2>
Explanation:</h2>
<em>Since I don't have access to "Appendix A", I'll solve the problem using data from the periodic table.</em>
<em />
<h3>1. Determine the molar mass of iron.</h3>
<em>According to the periodic table, the molar mass of iron is:</em>
55.845g/mole.
<h3>2. Convert 1 tonne to grams.</h3>
<h3>3. Apply rule of 3.</h3>
----------- 
----------- 
<h3>4. Determine the amount of atoms.</h3>
<em>Considering that there are, approximately, </em>
atoms in a mole of any element, apply another rule of 3.
1 mole --------------------- 
--------------------- x
.
Answer:
Metamorphic manufacturing
Explanation:
I don't know what form of an answer you wanted but I hope this helps :)
External depreciation may be defined as a loss in value caused by an undesirable or hazardous influence offsite.
<h3>What is depreciation?</h3>
Depreciation may be defined as a situation when the financial value of an acquisition declines over time due to exploitation, fray, and incision, or obsolescence.
External depreciation may also be referred to as "economic obsolescence". It causes a negative influence on the financial value gradually.
Therefore, it is well described above.
To learn more about Depreciation, refer to the link:
brainly.com/question/1203926
#SPJ1
Answer:
A
Explanation:
The answer is towels because towels after a little bit of just sitting around have a chemical reaction that cam cause them to spontaneously combust
