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3 years ago

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

Chemistry

1 answer:

saw5 [17]3 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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Before entering the cyclotron, the particles are accelerated by a potential difference V. Find the speed v with which the partic

vesna_86 [32]

Answer:

Speed, $v=\sqrt{\dfrac{2qV}{m}}$

Explanation:

The device which is used to accelerate charged particles to higher energies is called a cyclotron. It is based on the principle that the particle when placed in a magnetic field will possess a magnetic force. Just because of this Lorentz force it moves in a circular path.

Let m, q and V are the mass, charge and potential difference at which the particle is accelerated.

The work done by the particles is equal to the kinetic energy stored in it such that,

$qV=\dfrac{1}{2}mv^2$

v is the speed with which the particles enter the cyclotron

So,

$v=\sqrt{\dfrac{2qV}{m}}$

So, the speed with which the particles enter the cyclotron is $v=\sqrt{\dfrac{2qV}{m}}$ . Hence, this is the required solution.

7 0

3 years ago

When the moon moves directly between the sun and Earth and casts its shadow over part of Earth, you are

chubhunter [2.5K]

Answer:C

Explanation:you are seeing a lunar eclipse when the moon moves directly between the sun and the earth and casts a shadow. Hope this helps!

7 0

3 years ago

Read 2 more answers

The half-life of radon gas is approximately four days. Four weeks after the introduction of radon into a sealed room, the fracti

maksim [4K]

The fraction of the original amount remaining is closest to 1/128

<h3>Determination of the number of half-lives</h3>

Half-life (t½) = 4 days
Time (t) = 4 weeks = 4 × 7 = 28 days
Number of half-lives (n) =?

n = t / t½

n = 28 / 4

n = 7

<h3>How to determine the amount remaining </h3>

Original amount (N₀) = 100 g
Number of half-lives (n) = 7
Amount remaining (N)=?

N = N₀ / 2ⁿ

N = 100 / 2⁷

N = 0.78125 g

<h3>How to determine the fraction remaining </h3>

Original amount (N₀) = 100 g
Amount remaining (N)= 0.78125 g

Fraction remaining =?

Fraction remaining = N / N₀

Fraction remaining = 0.78125 / 100

Fraction remaining = 1/128

Learn more about half life:

brainly.com/question/26374513

7 0

2 years ago

What is the total volume of solution that was dispensed from this burette?

kykrilka [37]

Answer:

it will a i did the quiz got it all right

Explanation:

5 0

3 years ago

A piece of copper absorbs 5000 J of energy and undergoes a temperature change from 100 °C to 200 °C. What is the mass of the pie

irakobra [83]

Answer:

B.) 129.9 grams

Explanation:

To find the mass, you need to use the following equation:

Q = mcΔT

In this equation,

-----> Q = energy (J)

-----> m = mass (g)

-----> c = specific heat (J/g°C)

-----> ΔT = change in temperature (°C)

The specific heat of copper is 0.385 J/g°C. Knowing this, you can plug the given values into the equation and simplify to isolate "m".

Q = mcΔT <----- Equation

5000 J = m(0.385 J/g°C)(200 °C - 100 °C) <----- Insert values

5000 J = m(0.385 J/g°C)(100) <----- Subtract

5000 J = m(38.5) <----- Multiply 0.385 and 100

129.9 = m <----- Divide both sides by 38.5

8 0

1 year ago