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antiseptic1488 [7]
4 years ago
9

Why do molecules, including H2 and more complex organic molecules, only form inside dark clouds? Why don’t they fill all interst

ellar space?
Physics
1 answer:
IrinaK [193]4 years ago
7 0

Explanation:

A molecular cloud also called a stellar nursery , is a type of the interstellar cloud, with the composition of  commonly the molecular hydrogen ,

In dark clouds , the accumulation of the dust in a specific location , which blocks the starlight and hence , stopping ionization , and thereby making that area dark .

They do not fill all of the intersteller space , because , the number of dust grains only account for a fraction of the volume of the intersteller space .

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9. What is the acceleration of a boat if it starts from rest and then reaches a velocity of 24 m/s in 6.0 s?
Tom [10]

Answer:

b. 4 ms-2

Explanation:

acceleration = velocity / time

4 0
2 years ago
1) At which lettered point or points is the object moving the fastest?
emmainna [20.7K]

Here we have a time-position graph with some points marked on it, and we want to analyze some points in it.

1) The object is moving the fastest in the point where the slope of the curve is the largest.

In this case, the point is D.

2) Remember that the graph evolves to the right, so, if at any point, the right side is above the left side, then at that particular point the object is moving to the left (negative x-axis)

In this case, the points are:

C, D, and E.

3) The object speeds up when the curvature of the curve changes and the slope increases, for example, from B onwards, the speed increases.

Then at point C the speed is increasing.

4) Opposite to what we said before, if the slope decreases then the object is slowing down.

In this case we can see that the slope decreases after A and after E.

5) When the object is turning around?

This is easy, we can see that the object goes to the right (positive x-axis) until it reaches B and then goes back, then at point B the object turns around.

If you want to learn more, you can read:

brainly.com/question/11290689

8 0
3 years ago
A rock with a mass of 6.1 kg falls 1.5 m. What potential energy does it have before the fall?
denpristay [2]

89.67J

Explanation:

Given parameters:

Mass of rock = 6.1kg

Height of fall = 1.5m

Unknown:

Potential energy = ?

Solution:

The potential energy is the energy at rest or due to the position of a body.

Potential energy is mathematically expressed as;

  Potential energy = mgh

m is the mass of the rock

g is the acceleration due to gravity of the rock

h is the height of the rock

   Potential energy = 6.1 x 9.8 x 1.5 = 89.67J

learn more:

Potential energy brainly.com/question/10770261

#learnwithBrainly

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3 years ago
What layer forms the largest portion of Earth
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Kobotan [32]
<span> Magnetic fields have north and south magnetic poles.</span>
7 0
4 years ago
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