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vagabundo [1.1K]
3 years ago
10

what is the largest, low-cost airline carrier in the world, which recently canceled thousands of flights for reasons partially d

isputed by the federal aviation administration?
Engineering
1 answer:
IgorC [24]3 years ago
8 0

The largest, low-cost airline carrier in the world that recently canceled thousands of flights for reasons partially disputed by the federal aviation administration (FAA) is Southwest Airlines.

Southwest Airlines canceled 2,500 flights in just a few days.

According to Southwest Airlines, the cause of the cancellation is due to air traffic control problems and disruptive weather.

While FAA claimed that nothing like a reported case of air traffic and staffing shortages.

Southwest Airlines is the world's largest low-cost carrier and has its main office is located in Dallas, Texas.

Hence, in this case, it is concluded that the correct answer is "Southwest Airlines."

Learn more here: brainly.com/question/24782945

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Water is the working fluid in a Rankine cycle with reheat. The turbine and the pump have isentropic efficencies of 80%. Superhea
zheka24 [161]

Answer:

A)  3783.952 kJ/kg

B)  34.5%

C)  2476.67 kJ/kg

Explanation:

A) Determine the rate of heat addition entering the first-stage turbine

Qin ( 1st stage ) =  ( h1 - h6 ) + ( h3 - h2 )

                         = ( 3321.4 - 164.07 ) + ( 3438.566 - 2811.944 )

                         = 3783.952 kJ/kg

<em>h values are gotten from super heated table </em>

B) Determine the thermal efficiency

n = 34.5%

attached below

C) Rate of heat transfer from working fluid passing through the condenser to the cooling water

Qout = h4 - h5

         = 2628.2 - 151.53

         = 2476.67 kJ/kg

8 0
3 years ago
The pressure distribution over a section of a two-dimensional wing at 4 degrees of incidence may be approximated as follows: Upp
Ilya [14]

Answer:

The lift coefficient is 0.3192 while that of the moment about the leading edge is-0.1306.

Explanation:

The Upper Surface Cp is given as

Cp_u=-0.8 *0.6 +0.1 \int\limits^1_{0.6} \, dx =-0.8*0.6+0.4*0.1

The Lower Surface Cp is given as

Cp_l=-0.4 *0.6 +0.1 \int\limits^1_{0.6} \, dx =-0.4*0.6+0.4*0.1

The difference of the Cp over the airfoil is given as

\Delta Cp=Cp_l-Cp_u\\\Delta Cp=-0.4*0.6+0.4*0.1-(-0.8*0.6-0.4*0.1)\\\Delta Cp=-0.4*0.6+0.4*0.1+0.8*0.6+0.4*0.1\\\Delta Cp=0.4*0.6+0.4*0.2\\\Delta Cp=0.32

Now the Lift Coefficient is given as

C_L=\Delta C_p cos(\alpha_i)\\C_L=0.32\times cos(4*\frac{\pi}{180})\\C_L=0.3192

Now the coefficient of moment about the leading edge is given as

C_M=-0.3*0.4*0.6-(0.6+\dfrac{0.4}{3})*0.2*0.4\\C_M=-0.1306

So the lift coefficient is 0.3192 while that of the moment about the leading edge is-0.1306.

8 0
3 years ago
Show that -40 F is approximately equal to -40 C.
V125BC [204]

Answer: Please see below the explanation.

Explanation:

The Celsius (ºC) and Farenheit (ºF), are different temperature scales, but both have identifiable values for two important physical phenomena, water freezing point and water boiling point.

For º C, these are follows:

Freezing Point= 0º C            Boiling Point: 100ºC

For º F, we have the following:

Freezing Point= 32º F            Boiling Point: 212 ºF

Assuming that all steps (in each scale) between two following values are equal, we have 100 º C between both points in ºC, and 190º in ºF, so degrees in Farenheit are "shorter" than in Celsius, being the relationship, approximately the following:

1 º C = 9/5 ºF.

Taking into account that, by definition, 0ºC = 32º F, we can use the following equations in order to convert ºC to ºF, and viceversa:

ºC = (ºF-32) 5/9    

ºF = 32 + 9/5ºC

Now, let's calculate -40ºF, in ºC:

ºC= (-40-32)* 5/9 = -40º C

Let's do the same, converting -40ºC to ºF:

ºF = 32 + (-40)*9/5 = 32 + (-72) = -40ºF.

8 0
3 years ago
Which of the following describes a tropical grassland environment?
SOVA2 [1]
It would be the last one I’m pretty sure
7 0
3 years ago
Read 2 more answers
Suppose we are managing a consulting team of expert computer hackers, and each week we have to choose a job for them to undertak
lina2011 [118]

Answer:

if number == 1

  then

  tempSolution= max(l[number],h[number])

else if number == 2 then

  tempSolution= max(optimalPlan(1, l, h)+ l[2], h[2])

else

  tempSolution= max(optimalPlan(number − 1, l, h) + l[number], optimalPlan(number − 2, l, h) + h[number])

end if

return Value

FindOptimalValue(number, l, h)

for itterator = 1 ! number do

  tempSolution[itterator] = 0

end for

for itterator = 1 ! number do

  if itterator == 1 then

      tempSolution[itterator] max(l[itterator], h[itterator])

  else if itterator == 2 then

      tempSolution[itterator] max(tempSolution[1] + l[2], h[2])

  else

      tempSolution[itterator] max(tempSolution[itterator − 1] + l[itterator], tempSolution[itterator − 2] + h[itterator])

  end if

end for

return Value[number]

OPtimalPlan(number, l, h, Value)

for itterator = 1 ! number do

  WeekVal[itterator]

end for

if tempSolution[number] − l[number] = tempSolution[number − 1] then

  WeekVal[number] ”Low stress”

  OPtimalPlan(number-1, l, h, Value)

else

  WeekVal[number] ”High stress”

  OPtimalPlan(number-2, l, h, Value)

end if

return WeekVal

7 0
3 years ago
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