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Whitepunk [10]
3 years ago
11

Select the correct answer.

Engineering
2 answers:
Law Incorporation [45]3 years ago
7 0

Answer:

C. Contour farming

Explanation:

Because contour farming is the practice of tilling lines on sloped lands to improve water distribution and decrease land loss.

boyakko [2]3 years ago
6 0
I think the answer is b
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A 600-ha farmland receives annual rainfall of 2500 mm. There is a river flowing through the farmland with an inflow rate of 5 m3
shepuryov [24]

Answer:

E = 7333.33 mm

Explanation:

The annual evapotranspiration (E) amount can be calculated using the water budget equation:

P*A + Q_{in}*\Delta t = E*A + \Delta S + Q_{out}*\Delta t   (1)

<u>Where</u>:

<em>P: is the precipitation = 2500 mm, </em>

<em>Q(in): is the water flow into the river of the farmland = 5 m³/s, </em>

<em>ΔS: is the change in water storage = 2.5x10⁶ m³,  </em>

<em>Q(out): is the water flow out of the river of the farmland = 4 m³/s.</em>

<em>Δt: is the time interval = 1 year = 3.15x10⁷ s </em>

<em>A: is the surface area of the farmland = 6.0x10⁶ m² </em>  

Solving equation (1) for ET we have:

E = \frac{P*A + Q_{in}*\Delta t - \Delta S - Q_{out}*\Delta t}{A}

E = \frac{2.5 m \cdot 6.0 \cdot 10^{6} m^{2} + 5 m^{3}/s \cdot 3.15 \cdot 10^{7} s - 2.5 \cdot 10^{6} m^{3} - 4 m^{3}/s \cdot 3.15 \cdot 10^{7} s}{6.0\cdot 10^{6} m^{2}}                                  

E = 7333.33 mm

Therefore, the annual evapotranspiration amount is 7333.33 mm.

I hope it helps you!  

3 0
4 years ago
The Acme threading tool forms an inc luded angle of how many degrees? A. 30 B. 55 C. 29 D. 60
Schach [20]

Answer:

(C) 29°

Explanation:

ACME THREAD ANGLE : it is the angle measured between the thread axis and thread the thread flanks, with the help of thread angle we calculate the shape of screw thread it is the mean of v thread and square thread  the acme thread angle is denoted by β every thread has its own charactersistics which depends on the pitch and diameter of the thread

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4 years ago
On some engines, after torquing cylinder head fasteners, you
djverab [1.8K]

Answer:

Re-torque the bolts as required while your engine is warm. But if you're using aluminum cylinder heads, you should wait until your engine is complete cooled until re-torquing

3 0
3 years ago
) Assuming that the net environmental impact and all other considerations are equal to produce, package, and distribute both pro
DanielleElmas [232]

Answer:

biodegradable product

Explanation:

The biodegradable product will be the best product to buy on the market. This is due to the less harmful impact the product has on the environment. The plastics will degrade easily unlike the non-biodegradable products that are fossil fuel derivatives.

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1. What is resilience engineering and how does it pertain to the current<br>corona virus crisis? ​
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Explanation:

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