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Makovka662 [10]
4 years ago
14

Why is the air in a jet aircraft flying at high altitudes pressurized? *

Chemistry
1 answer:
saw5 [17]4 years ago
6 0

Answer:

Aircraft cabins are therefore pressurized to maintained a similar pressure as that experienced at sea level to ensure normal breathing of passengers.

Explanation:

-Air becomes increasingly thinner with increasing altitudes.

-As such, oxygen becomes limited at higher altitudes and makes it difficult or almost impossible to breath  a condition called hypoxia.

-Aircraft cabins are therefore pressurized to maintained a similar pressure as that experienced at sea level to ensure normal breathing of passengers.

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Write the equation of the mirror line for the segment with endpoints (5, 4) and (-1, -1).
charle [14.2K]

Answer:

Explanation:

{\displaystyle {}^{n}x}{}^{n}x, for n = 2, 3, 4, …, showing convergence to the infinitely iterated exponential between the two dots

In mathematics, tetration (or hyper-4) is an operation based on iterated, or repeated, exponentiation. It is the next hyperoperation after exponentiation, but before pentation. The word was coined by Reuben Louis Goodstein from tetra- (four) and iteration.

Under the definition as repeated exponentiation, the notation {\displaystyle {^{n}a}}{\displaystyle {^{n}a}} means {\displaystyle {a^{a^{\cdot ^{\cdot ^{a}}}}}}{\displaystyle {a^{a^{\cdot ^{\cdot ^{a}}}}}}, where n copies of a are iterated via exponentiation, right-to-left, I.e. the application of exponentiation {\displaystyle n-1}n-1 times. n is called the "height" of the function, while a is called the "base," analogous to exponentiation. It would be read as "the nth tetration of a".

Tetration is also defined recursively as

{\displaystyle {^{n}a}:={\begin{cases}1&{\text{if }}n=0\\a^{\left(^{(n-1)}a\right)}&{\text{if }}n>0\end{cases}}}{\displaystyle {^{n}a}:={\begin{cases}1&{\text{if }}n=0\\a^{\left(^{(n-1)}a\right)}&{\text{if }}n>0\end{cases}}},

allowing for attempts to extend tetration to non-natural numbers suc

6 0
3 years ago
Indicate whether each statement is true or false. Sort these statements into the proper categories.
tankabanditka [31]

Answer:

Answer below

Explanation:

A - false

B - true

C - false

In chemistry there is a principle that polar compounds are soluble with other polar compounds and non-polar compounds are mutually different.

Thus, sodium chloride is an ionic salt (polar) so it is not soluble in the benzene (non-polar) covalent compound, but it is soluble in water that is polar.

The ionic compounds will be soluble in polar solvents and not soluble in non-polar solvents, regardless of whether they are organic or inorganic.

3 0
3 years ago
Which two changes of state can be caused by removing thermal energy from a substance? choose two
crimeas [40]

Answer:

B and C

Explanation:

The correct answer is Condensation and Deposition

4 0
3 years ago
Read 2 more answers
Round to two significant figures 233.354
Rom4ik [11]

Answer:

230 because it is only two numbers higher than 0

4 0
3 years ago
Read 2 more answers
Which is not a weak acid? choose one answer.<br> a. hcl<br> b. hf<br> c. hno2<br> d. h3po4?
Diano4ka-milaya [45]
Hello!

From this list, a) HCl is not a weak acid. 

Hydrochloric Acid, or HCl, is one of the most common examples of a strong acid. Strong acids dissociate completely in water to generate H⁺ and A⁻ ions. For HCl this reaction is as follows:

HCl → H⁺ + Cl⁻

Being more precise, for an acid to be called strong it needs to be stronger than hydronium ion (H₃O⁺) <span>pKa</span> <span>< -</span>1.74.  

Have a nice day!
6 0
4 years ago
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