1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna11 [10]
2 years ago
7

The flow in an open channel is observed to have undergone a hydraulic jump. is the flow upstream from the jump necessarily super

critical? is the flow downstream from the jump necessarily subcritical?
Social Studies
1 answer:
trapecia [35]2 years ago
7 0

Fool a hydraulic jump to occur the upstream flow must be supercritical and the downstream flow must be subcritical.

If the upstream flow is subcritical. It will be a violation of the second law of thermodynamics so. It is impossible for a sub-critical flow to undergo a hydraulic jump.

Hydraulic jump is a phenomenon in hydraulic science commonly observed in open channel flows such as rivers and tailraces. When the high speed liquid exits the low speed zone, the liquid level rises sharply.

Hydraulic jumps are the most common choice used by designers to dissipate energy under spillways and drains. A well-designed hydraulic jump dissipates 60-70% of the pool's own energy, limiting damage to structures and riverbeds.

Learn more about hydraulic jump here:brainly.com/question/15959598
#SPJ4

You might be interested in
What is the primary disadvantage of adding factors to investigate a four-way interaction?
dmitriy555 [2]

Answer:

It is difficult to interpret such a complex interaction.

Explanation:

I can't give explanation for this one

3 0
2 years ago
The document, approved by the President, which delineates the general geographical area of responsibility for geographic combata
Goryan [66]

Answer:

The Unified Command Plan

Explanation:

According to my research and based on the information given in the question, I can say that the document described is The Unified Command Plan. The UCP provides a manual of instructions for control to the Armed Forces which determine how they organize themselves, as well as train and manage resources.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

6 0
3 years ago
Read 2 more answers
Read the passage from the poem Meghaduta.
nlexa [21]

Answer:

I think the beauty of nature

Explanation:

8 0
3 years ago
Read 2 more answers
How did countries throughout the world view the united States after the spanish american war
murzikaleks [220]
One way in which countries throughout the world view the united States after the spanish american war was that they feared the US, since the US clearly was not afraid to get involved in international affairs. 
5 0
3 years ago
Read 2 more answers
Margie, age 30, used to work as a DJ on the weekends. This year she quit her job to take care of her five-month-old daughter. Sh
Valentin [98]

Answer:

C). Not in the labor force.

Explanation:

The survey conducted by the Bureau of Labor Statistics will not count Margie in the labor force as she is not currently employed, neither is she looking for a job. As we know, the labor force is estimated or calculated after dividing the actively participating labor force by the number of candidates eligible. Since, Margie is neither participating and nor eligible(as she's not looking for a job). Thus, she would be considered as 'not in the labor force' and therefore, <u>option C</u> is the correct answer.

5 0
3 years ago
Other questions:
  • Do Americans have an “absolute” right to freedom of speech. Please explain why or why not.
    9·1 answer
  • Does living in a poor neighborhood result in bad school behaviors
    11·1 answer
  • Elena finds it very difficult to remember a long string of numbers so she tries to memorize three numbers at a time. later she i
    14·2 answers
  • Which choices could be considered adaptations?
    5·2 answers
  • A student is interested in studying college student success. His professor asked,‘How will you measure it?" The student replies,
    7·1 answer
  • Which of the three dimensions of social stratification--wealth, power, and
    6·1 answer
  • A researcher compares differences in perceptions of forgiveness in a sample of teenagers and older adults. In this example, the
    9·1 answer
  • Why do African people have dark skin?Give reason.​
    15·2 answers
  • All of these cities have been capitals of the state of Georgia but one which has not been a capital of Georgia
    8·1 answer
  • How did the Europeans explore east Asia?.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!