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
Arisa [49]
3 years ago
9

What do measurements of the mass of the Milky Way indicate?

Chemistry
1 answer:
miv72 [106K]3 years ago
8 0

<span>That the mass is far lesser and distributed mistakenly, as compared to what the orbits of stars declare it should be. Stars orbit more rapidly than the mass would predict, particularly out toward the galactic edge. This means that there is more mass than has been measured, and that it is spread out in a huge cloud around the galaxy. This is one of the reasons why scientists believe that dark matter exists.</span>

You might be interested in
The boiling points of different substances are given in the table below.
Oksi-84 [34.3K]

Answer:

Water

Explanation :-

Higher the intermolecular forces between the liquid particles, higher its boiling point.

8 0
3 years ago
Why are isotopes with short half-lives not useful for dating very old rocks?
erma4kov [3.2K]

Answer:

The radioactive isotopes within these brains typically record the ages of the grains-not the time when the sedimentary rock was formed, making it difficult to date using radiometric dating. The half-life of U-235 is 704 million years.

Explanation:

hope this helps but if i'm wrong then i'm sorry..

4 0
2 years ago
Read 2 more answers
A student sets up the following equation to convert a measurement. (The ? stands for a number the student is going to calculate.
kvasek [131]

Answer:

1 cm/s

Explanation:

From the question given above,

the student is trying to convert 0.010 m/s to a number in cm/s.

Thus, we can convert 0.010 m/s to cm/s as illustrated below:

Recall:

1 m/s = 100 cm/s

Therefore,

0.010 m/s = 0.010 m/s × 100 cm/s ÷ 1 m/s

0.010 m/s = 1 cm/s

Therefore, 0.010 m/s is equivalent to 1 cm/s

8 0
3 years ago
Which of the following formulas represents an ionic compound?
Marta_Voda [28]

Answer:

BaI2

Explanation:

Hello, since the electronegativity of Barium and Iodine are 0.89 and 2.66, respectively, the difference is 1.77, so the bond is ionic.

Best regards.

5 0
3 years ago
Common table salt is sodium chloride. when table salt is dissolved in water, the solution conducts electricity because
enot [183]
<span>In commonly table salt is sodium chloride. When table salt is dissolved in water, the solution conducts electricity because sodium chloride is made up of ions, it is called an ionic substance.</span>
4 0
3 years ago
Other questions:
  • Which of the following statements about trends in solubility is accurate?
    5·1 answer
  • 2) 3,160 tons of water flows over Niagra Falls every second. Assuming the water has a density of 1.00 g/ml,
    11·1 answer
  • A solution in a dish contains 4.0 grams of salt dissolved in 100 grams of water. If 50 grams of the water evaporates, this is ev
    6·1 answer
  • How are waves reflected, absorbed, or transmitted through materials such as air?
    13·1 answer
  • Carbon monoxide and chlorine combine in an equilibrium reaction to produce the highly toxic product, phosgene (COCl2 ) CO(g) Cl2
    5·1 answer
  • H2(g) + F2(g) → 2 HF(g) ΔH=-546 kJ
    6·2 answers
  • Calcium + nitrous acid → calcium nitrite<br> +<br> nitrogen monoxide<br> + water
    6·1 answer
  • Enter your answer in the provided box.
    13·1 answer
  • What is the amplitude ?
    14·1 answer
  • How many significant figures<br> are in this number?<br> 43.55
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!