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Llana [10]
3 years ago
14

Scientists and astronomers have found that in galaxies with central black holes, there are also large star formations near those

black holes. What has this led researches to conclude?
A. that star formations create black holes

B. that black holes and star formations are unrelated

C. that black holes and star formation are related

D. that black holes create star formations

This is for Astronomy not Physics but it didn't give me an Astronomy choice.
Physics
2 answers:
sattari [20]3 years ago
6 0

Answer:B

Explanation: I took the test

sweet-ann [11.9K]3 years ago
5 0

Answer:

B

Explanation:

nothing to do with black holes creating star or related

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Multiply the mass by the gravity.

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Pnet = Po + dgh 

<span>Density of saltwater = 1030 kg/m^3. </span>

<span>Disregard the thickness. Assuming it's a circular window, then the area is pi(r^2). </span>

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8 0
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Answer:

Explanation:

The only thing I can figure you need here is the accleration of the sled. The equation we need to find this is Newton's Second Law that says that sum of the forces acting on an object is equal to the object's mass times its acceleration. For us, that looks like this because of the friction working against the sled:

F - f = ma but of course it's much more involved than that simple equation! We have the F value as 230 N, and we have the mass as 105, but we do not have the frictional force, f, and we need it to solve for a in the above equation. We know that

f = μF_n where μ is the coefficient of friction, and F_n is the normal force, aka weight of the object. We will use the coefficient of friction and find the weight in order to fill in for f:

F_n=mg so

F_n=(105)(9.8) so the weight of the sled is

F_n= 1.0 × 10³ with the correct number of sig dig there. Now to find f:

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F - f = ma and

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230 - 25 will round to the tens place giving us 210. Then

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Answer:

i think its B or D

Explanation:

its Individual or Organism

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