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satela [25.4K]
3 years ago
14

What other ways could a wildfire be contained, extinguished, or slowed down?

Engineering
1 answer:
galben [10]3 years ago
3 0
Back burning, starting fires infront of the main fire to prevent the fire from spreading and depleting fuel for the fire, digging trenches so the fire has no where to go, dropping water from planes or helicopters.
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Water flows with a velocity of 3 m/s in a rectangular channel 3 m wide at a depth of 3 m. What is the change in depth and in wat
strojnjashka [21]

Answer: new depth will be 3.462m and the water elevation will be 0.462m.

The maximum contraction will be achieved in width 0<w<3

Explanation:detailed calculation and explanation is shown in the image below

8 0
3 years ago
A series of concrete pillars have been built on the border between Kuwait and Iraq. They are there to __________ the border.
Gala2k [10]

A series of concrete pillars have been built on the border between Kuwait and Iraq. They are there to demarcate the border.

<h3>What is a border?</h3>

A border is a geographical boundary that separate<em> countries, states, provinces, counties, cities, and towns.</em>

A series of concrete pillars have been built on the border between Kuwait and Iraq. They are there to demarcate the border.

Find out more on border at: brainly.com/question/811755

5 0
2 years ago
A three-phase, Y-connected, 75MVA, 27kV synchronous generator has a synchronous reactance of 9.0/phase. Using rated MVA and volt
Tatiana [17]

Given Information:  

ZΩ = 9 per phase

Sbase = 75 MVA

Sbase = 100 MVA

kV = 27 kV

kV = 30 kV

Required Information:  

Zpu = ?

Zpu_new = ?

Answer:  

Zpu = 0.925 pu

Zpu_new = 1 pu

Explanation:  

Zbase = (kVbase)²/Sbase

Zbase = (27x10³)²/75x10⁶

Zbase = 9.72

Zpu = Zactual/Zbase

Zpu = 9/9.72

Zpu = 0.925 pu

Now base MVA is changed to 100 MVA and base kV is changed to 30kV so the per unit value becomes

Zbase = (kVbase)²/Sbase

Zbase = (30x10³)²/100x10⁶

Zbase = 9

Zpu_new = Zactual/Zbase

Zpu_new = 9/9

Zpu_new = 1 pu

3 0
3 years ago
Using an engineer’s (blank) helps create efficient drawings by providing the engineer with a model of common ratios in design.
denis23 [38]

What is used by engineers to create efficient drawings by providing the engineer with a model of common ratios in design is;

<u><em>Computer Aided Design(CAD) Software </em></u>

<u><em /></u>

  • In the built environment, there is what we call 2D and 3D modelling.

Now, 3D modeling is the one that shows the length, width and height of an object and therefore this helps an engineer provide an accurate depiction of a project which helps clients with a view of the built-to-scale representation of their designs.

  • Whereas, 2D modelling just shows two sides of the design being worked upon.

  • Now, these 2D and 3D drawing can be generated with the aid of Computer Aided Design Software which is also called CAD Software.

Read more at; brainly.com/question/25152348

3 0
3 years ago
Water flows in a smooth pipe of diameter 1 ft with a velocity of 10 ft/s. If the kinematic viscosity of the water is 1.21*10-5 f
Murrr4er [49]
Hahaqjjajajajamaajajajakla,Alaska
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