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Dmitry [639]
3 years ago
10

Why don't rockets need air to stay up, like planes do?

Chemistry
1 answer:
forsale [732]3 years ago
7 0
<span>Part of a rocket's propulsion system includes a chemical oxidizer, either in the form of liquid oxygen, the solid ammonium perchlorate, or the propulsion/oxidizer mixture Hydrazine. No outside source of oxygen is needed. 

Steering is accomplished by "gimbaled" rocket nozzles which change the direction of the blast to keep the rocket on course. Once in space and in orbit, slight changes in orientation is made by small rockets placed around the craft that spurt little gas jets to nudge the craft into the desired position.</span><span>
</span>
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Which of the following is true about the third shell?
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Answer:

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Carbon exists in nature as three isotopes. Given the atomic masses and relative abundance of the isotopes, what is the average a
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explain using diagrams how potassium forms the compound potassium flouride when it reacts with flourine
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The answer to your question is given below.

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Consider a balloon with volume V. It contains n moles of gas and has an internal pressure of P. The temperature of the gas is T.
Maksim231197 [3]

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V₂ = 0.6 V.

Explanation:

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where, P is the pressure of the gas in atm.

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n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

  • If n is constant, and have different values of P, V and T:

<em>(P₁V₁T₂) = (P₂V₂T₁).</em>

<em></em>

V₁ = V, P₁ = P, T₁ = T.

V₂ = ??? V, ​P₂ = 1.25 P, T₂ = 0.75 T.

<em>∴ V₂ = (P₁V₁T₂)/(P₂T₁) =</em> (P)(V)(0.75 T)/(1.25 P)(T)<em> = 0.6 V.</em>

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4 years ago
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