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Vilka [71]
1 year ago
11

The event in the life of a star that begins its expansion into a giant is Group of answer choices almost all the hydrogen in its

core that was hot enough for fusion has been turned into helium as much as 90% of the star explodes violently the core reaches a temperature of ten million degrees the star's internal structure reaches equilibrium for the first time in its life
Physics
1 answer:
Sliva [168]1 year ago
7 0

The event in the life of a star that begins its expansion into a giant is its core that was hot enough for fusion reaction.

<h3>What is fusion reaction?</h3>

Nuclear fusion is a type of reaction in which two or more atomic nuclei are fuse to form one or more different atomic nuclei with the release or the absorption of energy.

So we can conclude that the event in the life of a star that begins its expansion into a giant is its core that was hot enough for fusion reaction.

Learn more about reaction here: brainly.com/question/26018275

#SPJ9

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How many drops of water are in a 1.0 L bottle? (Hint: Start by estimating the diameter of a drop of water.)
o-na [289]

Answer:

N = 2000 drops approx with 1 cm diameter each

Explanation:

Let the diameter of one drop is 1 cm

so volume of one drop is given by

V = \frac{1}{6}\pi d^3

now we have

V = \frac{1}{6}\pi(0.01)^3

V = 0.53 \times 10^{-6} m^3

now in 1L of liquid let say N drops are there

so we have

1L = 10^{-3} m^3

now we have

N = \frac{10^{-3}}{0.53 \times 10^{-6}}

N = 2\times 10^3

so it will have approx 2000 drops in it with diameter 1 cm each drop

7 0
3 years ago
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When an object radiates heat, the strength of this radiation far from the object decreases when distance from the source increas
rodikova [14]

Answer:

B I am not sure about the answer but it may be B

4 0
2 years ago
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Newton did not discover gravity, for early humans discovered that whenever they fell. what newton did discover is that gravity _
galben [10]

What Newton discovered is that  gravity extends throughout the universe.

<h3>What is gravity?</h3>

The term gravity refers to the force that acts on a body in the universe. It is gravity that makes an object to fall when it is thrown up. The force of gravity acts on every object in the universe and it extends through the universe.

Humans have always known about gravity when they fall from a height and when they threw things up. However, human did not know that gravity extends throughout the universe.

Thus, what Newton discovered is that  gravity extends throughout the universe.

Learn more about gravity:brainly.com/question/4014727

#SPJ1

6 0
1 year ago
The three branches of science are ____, earth, and physical
Rom4ik [11]
The three branches of science are life, earth, and physical science.
Life science deals with living organisms, so, biology is the most important of these sciences, although there are many.
Earth science deals with Planet Earth, studying its atmosphere, lithosphere, etc.
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5 0
3 years ago
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As the distance between two charged objects increases, the strength of the electrical force between the objects
AveGali [126]

As the distance between two charged objects increases, the strength of the electrical force between the objects  <em>decreases</em>.

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