Answer:
A fluid flowing along a flat plate will stick to it at the point of contact
Explanation:
and this is known as the no-slip condition. ... This is the precise reason why shear stress in a fluid can also be interpreted as the flux of momentum.
Answer:
Speed of aircraft ; (V_1) = 83.9 m/s
Explanation:
The height at which aircraft is flying = 3000 m
The differential pressure = 3200 N/m²
From the table i attached, the density of air at 3000 m altitude is; ρ = 0.909 kg/m3
Now, we will solve this question under the assumption that the air flow is steady, incompressible and irrotational with negligible frictional and wind effects.
Thus, let's apply the Bernoulli equation :
P1/ρg + (V_1)²/2g + z1 = P2/ρg + (V_2)²/2g + z2
Now, neglecting head difference due to high altitude i.e ( z1=z2 ) and V2 =0 at stagnation point.
We'll obtain ;
P1/ρg + (V_1)²/2g = P2/ρg
Let's make V_1 the subject;
(V_1)² = 2(P1 - P2)/ρ
(V_1) = √(2(P1 - P2)/ρ)
P1 - P2 is the differential pressure and has a value of 3200 N/m² from the question
Thus,
(V_1) = √(2 x 3200)/0.909)
(V_1) = 83.9 m/s
Answer:
78 MPa
Explanation:
Given that the critical resolved shear stress for a metal is 39 MPa, the maximum possible yield strength for a single crystal of this metal is twice the critical resolved shear stress for the metal. The maximum yield yield strength for a single crystal of this metal that is pulled in tension () is given as:
Using the knowledge of computational language in python it is possible to write a code that writes a list and defines the arrange.
<h3>Writing code in python:</h3>
<em>def isSorted(lyst):</em>
<em>if len(lyst) >= 0 and len(lyst) < 2:</em>
<em>return True</em>
<em>else:</em>
<em>for i in range(len(lyst)-1):</em>
<em>if lyst[i] > lyst[i+1]:</em>
<em>return False</em>
<em>return True</em>
<em>def main():</em>
<em>lyst = []</em>
<em>print(isSorted(lyst))</em>
<em>lyst = [1]</em>
<em>print(isSorted(lyst))</em>
<em>lyst = list(range(10))</em>
<em>print(isSorted(lyst))</em>
<em>lyst[9] = 3</em>
<em>print(isSorted(lyst))</em>
<em>main()</em>
See more about python at brainly.com/question/18502436
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