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Agata [3.3K]
3 years ago
6

Which of the following correctly describes the hierarchy that exists in the universe? A galaxy refers to all existing matter, en

ergy, and space that is held together by gravity. A galaxy is a collection of planets, their moons, and other objects in orbit around a central star. A solar system refers to all existing matter, energy, and space that is held together by gravity. A solar system is a collection of planets, their moons, and other objects in orbit around a central star.
Physics
2 answers:
Mkey [24]3 years ago
6 0
The correct hierarchy would be

-<span>A solar system is a collection of planets, their moons, and other objects in orbit around a central star.

</span><span>-A galaxy refers to all existing matter, energy, and space that is held together by gravity</span>
beks73 [17]3 years ago
3 0
<h3><u>Answer;</u></h3>
  • A galaxy refers to all existing matter, energy, and space that is held together by gravity
  • A solar system is a collection of planets, their moons, and other objects in orbit around a central star.
<h3><u>Explanation;</u></h3>
  • <em><u>The universe contains many galaxies and solar systems.</u></em>
  • <em><u>A galaxy </u></em>is a huge collection of gas, dust, and billions of stars and their solar systems.  A galaxy is held together by gravity. The galaxy that contains the Earth and its solar system is called the Milky Way.
  • <u>Solar System</u> consists of the stars, the Sun, and its orbiting planets, including the Earth, along with numerous moons, asteroids, comet material, rocks, and dust.

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Draw the ray diagram of Radius of concave mirror=7cm
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Answer:

Nature and size of image:

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3 years ago
Which action will cause the magnetic force to push two magnets closer together?
Sergeu [11.5K]

The action that will cause the magnetic force to push two magnets closer together: is that of attraction which happens when opposite poles of the magnets approach.

<h3>Meaning of magnetic force</h3>

magnetic force can be defined as the effect that is felt by magnetic objects that causes attraction and repulsion.

A magnetic force attracts two magnets when they are in opposite poles and repels them if they are in the same pole.

In conclusion, The action that will cause the magnetic force to push two magnets closer together: is that of attraction which happens when opposite poles of the magnets approach.

Learn more about magnetic force: brainly.com/question/2279150

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8 0
2 years ago
A trough in a transverse wave corresponds to a ________ <br> In a longitudinal wave.
kakasveta [241]

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compression

Explanation:

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5 0
2 years ago
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arsen [322]

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3 0
3 years ago
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Two pipes move the same amount of ideal fluid in the same amount of time. One pipe has a 2 in. diameter; the other has a 3 in. d
xxTIMURxx [149]
By Bernoulli Theorem, We know, that for any two points in the pipe, total energy would be same. 

Pressure Energy + K.E. of 1st pipe = Pressure Energy + K.E. of 2nd pipe
[ No need to consider Potential energy as height isn't mentioned] 
P₁ + mv₁²/2 = P₂ + mv₂²/2

So, we know, P + mv²/2 = constant

As value of kinetic energy is larger in larger in 2 in. pipe [ 'cause area is indirectly proportional to velocity ], Value of pressure energy would be smaller in it. So, pressure energy will be higher in the pipe of 3 in.

In short, option A would be your correct answer.

Hope this helps!



6 0
3 years ago
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