2 years ago

Active young galaxies with huge black holes at their centers are called irregular galaxies true or false

Physics

1 answer:

boyakko [2]2 years ago

5 0

The answer is True. Hope it helped

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Which statement best describes the relationship between atoms and nuclear forces? (2 points)

Setler79 [48]

Answer:

D. Strong nuclear forces hold the nucleus of an atom together. Weak nuclear forces are involved when certain types of atoms break down.

Explanation:

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1 year ago

If Bert the Bat travels East at 200 meters in 10 seconds, what is his velocity?

dexar [7]

Answer:

20m/s due east

Explanation:

Given parameters:

Displacement eastward = 200m

Time = 10s

Unknown:

Velocity = ?

Solution:

Velocity is the displacement divided by time;

Velocity = $\frac{displacement}{time}$

Velocity = $\frac{200}{10}$ = 20m/s due east

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2 years ago

Identify the atom with the following ground-state electron configuration for its valence shell 4s23d104p6

Annette [7]

Since the greatest number in the given electron configuration of the atom is 4, it means that the element is found in the fourth energy level. The number of electrons found in the valence shell is 2+10+6 = 18. From this answer and using the periodic table, we can see that the atom is that of Krypton (Kr).

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2 years ago

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A scientist who studies chemicals and the effects of pollution in the air, water, and soil .

Ivan

Answer:

Ecologist is the answer

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2 years ago

7. The Voyager 1 space probe was launched in the 1970's and is now the furthest

NikAS [45]

Answer:

v = 16.98 km/s

Explanation:

Given that,

Distance, d = 4500 km

Time, t = 265 s

We need to find its average speed. The total distance covered divided by total time taken is called average speed of an object. So,

$v=\dfrac{4500\ km}{265\ s}\\\\=16.98\ km/s$

So, the average speed is 16.98 km/s.

6 0

2 years ago