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sergeinik [125]
3 years ago
10

Identify a true statement about flow separation. Multiple Choice A. Flow separation is caused due to high temperature gradient i

n the flowing fluid. B. Flow separation is caused due to viscosity difference in the flowing fluid. C. Flow separation is caused due to density difference in the flowing fluid. D. Flow separation is caused due to adverse pressure gradient in the flowing fluid.
Physics
1 answer:
Helga [31]3 years ago
6 0

Answer:

D. Flow separation is caused due to adverse pressure gradient in the flowing fluid.

Explanation:

Flow separation  :    

  When adverse pressure gradient become dominate then phenomenon of flow separation occurs.In the other words when boundary layer is form against the adverse pressure then  phenomenon of flow separation occurs.The adverse pressure means a opposing which act in the opposite to the direction of fluid flow.Due to flow separation eddy formation occurs and these eddy leads to increases the losses in the fluid flow.Due to flow separation fluid leaves the solid surface and form eddies.

So the answer is D.              

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<h3>What is collision ?</h3>

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A student gives a brief push to a block of dry ice. A moment later, the block moves across a very smooth surface at a constant s
Monica [59]
Hey There,

Question: "<span>A student gives a brief push to a block of dry ice. A moment later, the block moves across a very smooth surface at a constant speed. When drawing the free body diagram for the block of dry ice moving at a constant speed, the forces that should be included are: (select all that apply)"

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slava [35]

Answer:

f=-1380N

Explanation:

A karate master wants to break a board by hitting the board swiftly with his hand. The master's hand has a mass of 0.30 kg, and as it strikes the board, his hand has a velocity of 23.3 m/s. The master contacts the board for 0.0050 seconds

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t=time for the impact

v=0m/s final velocity

u=initial velocity

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