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kykrilka [37]
1 year ago
5

What observational evidence suggests that supermassive black holes are located at the centers of many galaxies

Physics
1 answer:
RoseWind [281]1 year ago
5 0

Observational evidence suggests that supermassive black holes are located at the centers of many galaxies is rapid & sudden changes in the orbits of stars & other objects in the galactic center.

<h3>What are black holes?</h3>

A black hole is an area of spacetime with such intense gravitational pull that nothing can escape from it, not even light or other electromagnetic waves. According to general relativity theory, a compact enough mass can bend spacetime into a black hole. The event horizon is the line beyond which there is no escape. Despite having a significant impact on the outcome and circumstances of an object traversing it, general relativity states that it lacks any locally observable characteristics. A black hole behaves in many ways like a perfect black body since it does not reflect light.

To learn more about black holes visit:

brainly.com/question/10597324

#SPJ4

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Two forces of 50 N and 30N respectively, are acting on an object. Find the net force (in N) on the object if
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A) the forces are acting in the same direction.. B) Together, forces are acting in opposite directions

Answer:

A) 80 N

B) 20 N

Explanation:

A) If the forces acting are in the same direction, then the net force will be a sum of both so many faces..

Thus;

ΣF = 50 + 30

ΣF = 80 N

B) If the forces are acting in the in opposite directions with the larger force pointing in the positive y-axis then, the net force is;

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ΣF = 20 N

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3 years ago
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3 years ago
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elements are organized based on their properties on a chart called modern periodic table which of the following statements is tr
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Answer:

Elements are arranged in the table by increasing atomic number.

Explanation:

In the modern periodic table, each element is represented by its chemical symbol. The number above each symbol is its atomic number.

8 0
3 years ago
a 3.2 kg durian fruit is pushed across the table.If the acceleration of the durian is 3.1 m/s/s to the right,what is the net for
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Answer:

<h2>9.92 N</h2>

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The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 3.2 × 3.1

We have the final answer as

<h3>9.92 N</h3>

Hope this helps you

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An apple drops from the tree and falls freely. The apple is originally at rest a height H0 above the ground. The ground is cover
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Answer:

Explanation:

The distance travelled in the free fall is H - h  

Since the apple originally started from rest we can use v^2 =  u^2 + 2 x g x s  where v is the final velocity, g the accln due to gravity and s the distance travelled and u is the initial velocity = 0

So the velocity just before it enters the grass is sq rt [2 x g x (H - h)]

Once in the grass, it slows down at a constant rate which means that the acceleration (a) during this period is constant.

So once again using the same formula we have v = O and u = sq rt[2 x g x (H-h)]

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O^2 = 2 x g x (H-h) + 2 x a x h

{O^2 - 2 x g x (H - h)}/(2 x h) = a

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3 years ago
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