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Gnesinka [82]
2 years ago
8

What are the maria composed of? Is this material found elsewhere in the solar system?

Physics
1 answer:
zepelin [54]2 years ago
6 0

Answer:

Basaltic Lava. It is very similar in composition to the basaltic lava on Earth.

Explanation:

Maria (Plural for Mare) are the huge dark plains on the Lunar surface. They were name as such as the ancient astronomer thought them to be sea (Latin meaning of mare is sea). As the astronomer's studied and observed Lunar surface further we got to know that these are not sea of water but huge plains filled with lava. These are easily visible to naked eye as dark spots on the Lunar surface.

These were formed due to ancient volcanic eruptions when the Moon was young. The study of these with Earth based observatories and Lunar missions have revealed a lot about the composition of these Lunar Maria. Major composition of them is Basaltic Lava very similar to that of Earth. They are iron rich which makes them less reflective in comparison to the highlands.

Elemental composition of the Lunar Maria is as follows:

1. Silica (SiO₂) - 45.4%

2. Alumina (Al₂O₃) - 14.9%

3. Iron Oxide (FeO) - 14.1%

4. Lime (CaO) - 11.8%

5. Magnesia (MgO) - 9.2%

6. Titanium Oxide (TiO₂) - 3.9%

7. Sodium Oxide (Na₂O) - 0.6%

The percentage of these elements is very similar to that on Earth.

The high percentage of Aluminum can be attributed to the replacement of Iron by anorthosites (which are mostly composed of plagioclase feldspar). Anorthosites replaced iron and magnesium in the continental areas.

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Answer:

It takes 77 N

Explanation:

Using Newton's second law of motion, F=ma (Force equals mass times acceleration. Since the mass of the couch is 385 kg and the target acceleration is 0.2 m/s, you simply multiply mass times acceleration (ma) to get the total force, or 77 N.

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Do acids or bases turn litmus paper red?
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3 years ago
The atomic mass of nitrogen is 14.01, hydrogen is 1.01, sulfur is 32.07, and oxygen is 16.00. What is the molar mass of ammonium
MArishka [77]

The molar mass of ammonium sulphate [(NH4)2SO4] is 132.17 g (option E). Details about molar mass can be found below.

<h3>How to calculate molar mass?</h3>

The molar mass of a substance can be calculated by adding the atomic masses of the elements in the compound.

According to this question, the atomic mass of nitrogen is given as 14.01, hydrogen is 1.01, sulfur is 32.07, and oxygen is 16.00.

The molar mass of ammonium sulphate is as follows:

[(NH4)2SO4] = [14.01 + 1(4)]2 + 32.07 + 16.00(4)

= 36.02 + 32.07 + 64

= 132.09

Therefore, the molar mass of ammonium sulphate [(NH4)2SO4] is 132.17 g.

Learn more about molar mass at: brainly.com/question/12127540

#SPJ1

4 0
2 years ago
Two cars, one in front of the other, are traveling down the highway at 25 m/s. the car behind sounds its horn, which has a frequ
netineya [11]
<span>You are given two cars, one in front of the other, that are traveling down the highway at 25 m/s. You are also given a frequency of 500 Hz of the car travelling behind it. You are asked what is the frequency heard by the driver of the lead car. This problem can be solved using the Doppler effect

sound frequency heard by the lead car = [(speed of sound + lead car velocity)/( speed of sound + behind car velocity)] * (sound of frequency of the behind car)
</span>sound frequency heard by the lead car = [(340 m/s + 25 m/s)/(340 m/s - 25 m/s)] * (500 Hz)
sound frequency heard by the lead car = 579 Hz
7 0
3 years ago
The maximum current output of a 60 ω circuit is 11 A. What is the rms voltage of the circuit?
Scilla [17]

Answer:

sorry

Explanation:

I dont know the anwser to that one

6 0
3 years ago
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