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ANTONII [103]
2 years ago
10

What is the main idea of this paragraph? (The image gives you a hint...) Select an answer Carbon is the building block of the un

iverse. Smaller particles combine to make larger particles. Stars constantly grow from adding particles of the gas and dust from the nebulae. Stars make energy through fusion reactions and may eventually explode, making heavier of elements, larger particles, and releasing tremendous amounts of light energy.
Chemistry
1 answer:
Crank2 years ago
3 0

Answer:

give me brain lessssssssssssasss

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What is the sequence in the formation of the Earth and the Universe?
Bezzdna [24]

Answer:

The Earth formed billions of years after the Universe formed

Explanation:

The "universe" is said to have been formed <em>billions of year ago</em> through an explosion. This was called the <em>"Big Bang Theory." </em>This lead to the<u> expansion of the universe</u> owing to its high temperature and density. After which, the universe cooled down. Galaxies and stars were then formed. Some of the stars died due to explosion, which then led to the <u>creation of planets</u>. Such formation of the planets happened around <u>4.5 billion years ago.</u> This is <em>9.3 billions of years later</em> than the universe was formed<em> (13.8 billions of years ago)</em>. So, this explains the answer.

3 0
2 years ago
How many molecules are in 2.5 mole of carbon diocese<br><br><br> *MARK U AS BRAINLISTER
Kitty [74]
1,363 is the right answer
8 0
3 years ago
What is the arrhenius definition of an acid?
zhuklara [117]
As defined<span> by </span>Arrhenius<span>, </span>acid<span>-base reactions are characterized by </span>acids, which dissociate in aqueous solution to form hydrogen ions (H+) and bases, which form hydroxide (OH−<span>) ions. </span>Acids<span> are </span>defined<span> as a compound or element that releases hydrogen (H</span>+<span>) ions into the solution</span>
8 0
2 years ago
Kedrick and Kaleb train by pushing a sled that weighs 300 kg at an acceleration of 2m/s^2. What force did they push the sled wit
stiks02 [169]

Answer:

\boxed {\tt 600 \ Newtons}

Explanation:

Force can be found by multiplying the mass and the acceleration.

F=m*a

The mass of the sled is 300 kilograms and the acceleration is 2 meters per second squared.

F= 300 \ kg * 2 \ m/s^2

Multiply.

F= 600 \ kg * m/s^2

1 kilogram-meter per second squared is equal to 1 Newton. Therefore, 600 kilograms-meter per second squared is equal to 600 Newtons.

F= 600 \ N

The force used on the sled is 600 Newtons.

5 0
3 years ago
A population of rabbits triples every 2 months If there are 2 rabbits initially, how long will it take for the population to inc
Bezzdna [24]

Answer:

The rabbit population will reach 500 after 10 months.

Explanation:

According to the given data:

The initial number of rabbit's equals 2.

Number of rabbit's after 2 months =2x3= 6

Number of rabbit's after 4 months = 6x3=18

Number of rabbit's after 6 months = 18x3=54

Number of rabbit's after 8 months = 54x3=162

Thus we can see that the number of rabbit's form a Geometric series with common ratio =3 and initial term = 2

Now the general term of a geometric series with first term 'a' and common ratio 'r' is given by

T_{n+1}=ar^{n}

Thus we need to find when the term becomes 500 thus using the given data we have  

500=2\cdot 3^{n}\\\\3^{n}=250\\\\(n)log_3(3)=log_3(250)\\\\(n)=5.025\\\\

Thus the fifth term (excluding the start term) will have a rabbit count of 500 now since each term has a time difference of 2 months thus sixth term will occur after 5\times 2=10months

7 0
3 years ago
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