1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
katrin2010 [14]
3 years ago
8

How do scientists look for black holes in space

Chemistry
1 answer:
Sophie [7]3 years ago
7 0
Scientists<span> can not really observe </span>black holes with telescopes that detect x-rays, light, or other forms of electromagnetic radiation. Scientists can<span> infer the presence of </span>black holes<span> and study them by detecting their effect on other matter nearby</span>.

Hope this helps! God bless
-vf
You might be interested in
Describe meteor showers​
IgorLugansk [536]

Answer:

a rain of asteroids coming from space

Explanation:

4 0
3 years ago
Read 2 more answers
The density of ammonia gas under certain condition is 0.625 g/L. Calculate its density in g/cm³.
oee [108]

Answer:

The density of Ammonia : 6.25.10⁻⁴ g/cm³

Further explanation  

Density is a quantity derived from the mass and volume  

Density is the ratio of mass per unit volume  

With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller density  

The unit of density can be expressed in g/cm³ or kg/m³  

Density formula:  

\large {\boxed {\bold {\rho ~ = ~ \frac {m} {V}}}}ρ = Vm

ρ = density  

m = mass  

v = volume  

A common example is the water density of 1 gr/cm³  

Ammonia has a density of 0.625 g/L, then convert to g/cm³ :

\begin{gathered}\rm 1~L=1~dm^3=10^3~cm^3\\\\0.625~\dfrac{g}{L}\times \dfrac{1~L}{10^3~cm^3}\\\\\rho=\dfrac{0.625}{10^3}}\dfrac{g}{cm^3}=\boxed{6.25.10^{-4}\dfrac{g}{cm^3}}\end{gathered}

Learn more

4 0
2 years ago
Read 2 more answers
The chemical formula for a molecule that contains two chlorine (Cl) atoms is ___________.
Karo-lina-s [1.5K]
CI2 is two chlorine atoms.
6 0
4 years ago
Read 2 more answers
Convert<br> chloroethane<br> into enene
Solnce55 [7]
Corvette corvette 07
6 0
3 years ago
Selena breaks a piece off the end of a stick she found and notes that’s a physical change has occurred which of the following pr
babunello [35]
The shape and size of the stick has changed after breaking it
6 0
3 years ago
Other questions:
  • How would you prepare 2.00 l of a 0.25 m acetate buffer at ph= 4.50 from concentrated acetic acid (17.4 m) and 1.00 m naoh? the
    14·1 answer
  • Can someone answer (d) please. I thank
    9·1 answer
  • When an ice cube melts what happens to the matter that once made up the cube
    12·1 answer
  • 20cm of 0.09M solution of H2SO4. requires 30cm of NaOH for complete neutralization. Calculate the
    7·1 answer
  • rutherford proposed that atoms have positive nuclei. which statement correctly describes the nucleus of an atom? the nucleus con
    11·2 answers
  • Describe the structure of an atom.
    7·1 answer
  • A wavelength of 489.2 nm is observed in a hydrogen spectrum for a transition that ends in the nf level of the Balmer series. Wha
    10·1 answer
  • How many grams of H,O are needed to produce 13 g of NaOH? 2 Na,O2 + 2 H20-4 NaOH + O2
    15·1 answer
  • S this statement true or false? All worms belong to the same phylum.
    15·2 answers
  • How many neutrons are there in 186W
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!