sue39
sue39
09-05-2016
Geography
contestada
why do they pressurize the cabin of airplane at 7,000 ft
Respuesta :
Insidious
Insidious
10-05-2016
Hey there!
Airplanes must be pressurized when flying at high altitudes so that the oxygen levels stay normal for us to breathe. The higher you go up, the thinner the air gets, which causes breathing problems for us humans.
Thank you!
Answer Link
VER TODAS LAS RESPUESTAS ( 11+ )
Otras preguntas
The graph of this system of equations is which of the following? 2x + y = 6 6x + 3y = 12 Group of answer choices Overlapping lines Parallel lines Intersect
vector addition is commutative because the order in which vectors are added does not matter. a. Use the vectors from figure 9 to show graphically that M L=L M.
In His Steps critical review: Clearly state your thesis and support it with evidence from the text. Use at least three specific quotes. Remember to document you
15 coupons are numbered 1, 2, 3,..., 14, 15. Seven coupons are selected at random, one at a time with replacement. What is the probability that 9 would be the l
Which states were aligned with the United States during the Cold War?
Read the excerpt from "How the Grimm Brothers Saved the Fairy Tale." Though brusque and raw, the Grimms’ tales of the first edition still resonate with us toda
Through this letter, I wish to highlight our excessive dependence on technology which _____ steadily.a) is increasingb) has increasedc) will decreased) remained
Calculate the critical crack size (a) for σ = σys, σys/2, and σys/4 for an edge crack in a 4.00-inch thick infinite plate in a material that has σys = 100 ksi a
Which of the following is a benefit of retaining customers?a) To create marketing strategies that develop and sustain desirable customer relationshipsb) To attr
What is the four period moving average for period 6 for the following data:Period Gallons1 3062 2903 2674 2775 2716 2807 3318 2989 308(Keep 2 decimal places in
