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topjm [15]
3 years ago
10

What are two types of rocket fuels we have used? Describe them.

Chemistry
2 answers:
Olenka [21]3 years ago
6 0

Answer:

nasa will tel u

Explanation:

Mrac [35]3 years ago
5 0
There are two main types of fuel used to get rockets off Earth: solid and liquid. In the United States, NASA and private space agencies use both!

I hope this helped! Mark me Brainliest! :) -Raven❤️
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As the amplitude decreases in a wave, the energy increases.
Fittoniya [83]

Answer:

False

Explanation:

The relationship between energy and amplitude can be written as eαa^2

This means that the energy of a wave is directly proportional to the square of the amplitude.

7 0
4 years ago
7. Reproduce the following sentences as indicated in brackets. a. Urmila always goes to temple, .................... ? (Supply t
Tema [17]

Answer:

a. Urmila always goes to the temple, doesn't she?

b. Was the baby playing with the doll?

c. When will Peter start a business?

d. They have not finished the work yet.

e. She told me that her brother knows me.

f. Sita was married by Ram.

Explanation:

A. In grammar, a question tag is a very short clause at the end of a statement which changes the statement into a question. For example, in 'She said half price, didn't she?' , the words 'didn't she' are a question tag.

B. Interrogative questions/sentences often have to get a yes/no answer.

C. The "next year" will be the answer to that question. U need to ask when.

D. The have not done the work yet, therefore the answer would change from "not finish" to "have not finished"

E. Indirect speech is speech which tells you what someone said. It's like the game "telephone" indirect speech is what you tell someone else, what another person said, or what someone else tells you what another person said.

F. Passive voice means that a subject is a recipient of a verb's action.

4 0
2 years ago
Which cell has the better survival plan, animal or plant cell? Support your answer with facts I WILL GIVE BRAINLIEST ANSWER
d1i1m1o1n [39]
If im not mistaken plant cells go through a stage called photosynthesis meaning the cells can create it's own energy (food) off of water, Co2 and sunlight.
7 0
3 years ago
How does the number of molecules in 1 mol of oxigen compare with the number of molecules in 1 mol of nitrogen?
swat32

Answer:

They are the same.

Explanation:

Hello!

In this case, according to the Avogadro's number, we take into account that for molecules such as gaseous oxygen (O₂) and nitrogen (N₂), we realize that 1 mole of these contain 6.022x10²³ moles of molecules; as we are given  1 mol each, we notice they both have 6.022x10²³ molecules, therefore, they number of molecules is the same because they have the same number of moles.

Best regards!

8 0
3 years ago
How many helium atoms are there in a helium blimp containing 535 kg of helium?
svetoff [14.1K]
<span>Helium atom's Atomic Weight = He = 4.0026 g/mol. Avagrado's number is = 6.023 x 10^23 molecules / mol. In order to find the number of atoms in 535kg of helium blimp. First we need to convert the weight of 535 kg to mol which can be done by multiplying the atomic weight of helium into present atom with respect to grams. 535 kg converted into grams ---> 535000 g There fore 535000 g X 4.0026 g/mol = 133,663 mol. (Note The grams will get cancel as per multiplication rules) Multiplying the avagadro's number with the equation we get: 133,663 mol *6.0221415 Ă— 10^23 molecules/mol= 8.04919303 Ă— 10^28 molecules. Since Helium is having 2 Atoms : 8.04919303 Ă— 10^28 molecules *2= 1.60983861 Ă— 10^29 atoms The No of Helium atoms in 535 kg of helium is 1.61 x 10^29.</span>
4 0
3 years ago
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