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
What needs more gas a heavealy loaded truck or an empty truck
Vitek1552 [10]
A heavily loaded truck takes more gas because it takes more power to move a heavy load. 
4 0
3 years ago
How does the properties of matter in liquid and gas state allow the Herons fountain to work?
Varvara68 [4.7K]

Answer:

Heron's fountain is an hydraulic machine that works because or the pressure inside of the system. Water will flow from high gravitational potential energy to low gravitational potential energy. The two sides of the system will present different pressure because they have different fluids in it (water and air) and  water pressure is higher than gas/air pressure, so it will flow.

It is important to take into account that the pressure in the columns is a function of the height of the fluid (water or air).

Explanation:

<u>The properties of liquid:</u>

- If a liquid is poured into a container, it will adapt to the container's shape

- In a liquid state, the molecules have a kinetic energy higher than in a solid state

- Liquid particles are not arranged in a regular way but they are very close  to each other, that's why liquids have a definite volume.

- Force is spread in an even way through a liquid, so the liquid particles are displaced if an object is placed in it.

- Liquids, as solids, can't be compressed

<u>The properies of gas:</u>

- They are everywhere

- Gas molecules are disorganized and have a great deal of space between them

- Gas fill up any container and spread indefinitely

- Gas molecules have a high kinetic energy

- If gas is put under pressure, the space between particles will decrease and collisions between them will increase.

- If the temperature of the gas increases in a container, the pressure will increase; if the temperature decreases, the pressure sill decrease.

- It can be compressed

- Gas has no definite volume nor definite shape.

8 0
3 years ago
What is the location on the surface directly above the earthquake focus called? A. epicenter B. fault C. Moho D. foci
cupoosta [38]

the answer is A. epicenter :)


5 0
3 years ago
Read 2 more answers
Which example is the site of reduction when the dry cell is operating
Simora [160]

Answer:

A battery contains electrochemical cells that can store chemical energy to be converted to electrical energy. A dry-cell battery stores energy in an immobilized electrolyte paste, which minimizes the need for water. Common examples of dry-cell batteries include zinc-carbon batteries and alkaline batteries.

Explanation:  i hope this helps sorry if it didnt

4 0
3 years ago
Read 2 more answers
Which layer in the diagram was the original layer?
tatiyna
I’m almost sure it’s D but i could be wrong
4 0
2 years ago
Read 2 more answers
Other questions:
  • A 2 mole sample of F2(g) reacts with excess NaOH(aq) according to the equation above. If the reaction is repeated with excess Na
    9·1 answer
  • How would I go about solving this problem?
    10·1 answer
  • Heat and pressure due to magma intrusions may result in
    11·1 answer
  • What is Loschmidt’s number? How is it related to Avogadro’s number?
    15·1 answer
  • A compound consists of 40.00% C, 6.713% H and 53.28% O on a mass basis and has a molar mass of about 180 g/mole. Determine the m
    9·1 answer
  • 21+ Cl2 → 12+201 -
    9·1 answer
  • How many mL of 1.01 M LiNO3 solution has 6.63 g of solute?
    10·1 answer
  • Examine the scenario.
    10·2 answers
  • 1: Write the positive and negative ions that result when the following compounds are dissolved in an aqueous solution:
    8·1 answer
  • Place the following from smallest to largest
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!