Question

Astronomers have found “dark matter” in a variety of environments. Name the places where dark matter...

Astronomers have found “dark matter” in a variety of environments. Name the places where dark matter has been found, and briefly describe how the discovery was made in each case. The question is: In what way is this similar to the construction of Hubble’s law?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The matter that we cannot observe directly "dark matter,". Many evidence are found shows that super massive black hole (dark matter) is located at the galactic centre.

The large fraction of invisible matter is present in the universe because gravity produced by all luminous body is very less compared to amount of gravity required for the stars to orbit around galaxies and the galaxies to their galactic centre.

According to Hubble's law all objects appear to be farther away from us.This is possible if the expansion of the universe is accelerating, not decelerating. In order for the universe to accelerate, there must be some force pushing all of the galaxies away from each other, and this force must be strong enough to counteract the deceleration by gravity. Today, we do not know the ectula caue of this. his new mysterious force provided by darks matter, dark energy.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
#1 There are two classes of explanations for the two major observations concerning Dark Matter. The...
#1 There are two classes of explanations for the two major observations concerning Dark Matter. The first class explains Dark Matter as some heretofore unknown massive stuff that we have not been able to detect prior to these observations. The second class of explanations suggests that the current theory of gravity is not true at the scale of galaxies, opening the way for an alternative theory of gravity (Modified Newtonian Dynamics or MOND). In your textbook there is a section...
1) Trace a drop of blood from the renal artery to the renal vein. Name all...
1) Trace a drop of blood from the renal artery to the renal vein. Name all the blood vessels. 2) How does filtrate form? What pressures are involved? What affect does each pressure have on formation? Trace a drop of filtrate from its formation to the point where it turns into urine. Explain ALL of the micro anatomy; and the physiology that occurs at each microanatomical structure along the way. 3) What would happen if HPg dropped by 16mm Hg?...
This basic information applies to all of the related questions: Alpha Assemblies produces a wide variety...
This basic information applies to all of the related questions: Alpha Assemblies produces a wide variety of products in their central Nebraska facility. Many of these products fit within a line of standard truck and trailer parts. Within this is a set of hitches that can be made in two sizes (1-1/4 and 2) and three strengths (light duty, medium duty, and heavy duty). All of the hitches in this line have "natural" finishes so no additional steps are necessary...
Oversight power of congress is all about making sure the laws passed by congress are being...
Oversight power of congress is all about making sure the laws passed by congress are being implemented the right way. Question 1 options: True False Question 2 (0.5 points) Individuals hired from the public sector to work for government bureaucracy are known as_______________. Question 2 options: Public officers Elected officials Civil Servants/public servants They have different names from one government office to another Question 3 (0.5 points) Which one of the following is a legislation passed to prevent corrupt hiring...
Answer the following question for any pilgrimage of your choice 1) What is name of your...
Answer the following question for any pilgrimage of your choice 1) What is name of your pilgrimage site? 2) Where is located? 3) Can you make a pilgrimage at any time or does it need to be on a certain day to coincide with a celebration/ceremony/time of year? 4) Can you visit alone or must you be with a group? 5) Do you know anyone that has been to this place? 6) If so, asked them for five things you...
You are working in the accident and emergency department and have been allocated to assess and...
You are working in the accident and emergency department and have been allocated to assess and care for Jane Ray. Jane is a 57-year-old man with Type 2 diabetes first diagnosed 2 years ago. Mr. Ray has a past history of heavy alcohol use and obesity. Despite his best efforts he has gained weight slightly over the last two years due to his fondness for take-away food and continued high beer intake. Richard has been feeling increasingly unwell over the...
1) Describe an example of each of the following that may be found of your kitchen:...
1) Describe an example of each of the following that may be found of your kitchen: Explain how your choice falls into this category, and if there is a chemical name or symbol for it, provide that as well. Provide a photo of your example with your ID card in it. a) a compound b) a heterogeneous mixture c) an element (symbol) Moving to the Caves… Lechuguilla Caves specifically. Check out this picture of crystals of gypsum left behind in...
Horner Work Wear, Inc., supplies uniforms for a variety of businesses .. Collin Hoffman is a...
Horner Work Wear, Inc., supplies uniforms for a variety of businesses .. Collin Hoffman is a new intern in the Accounting Department at Horner. To expand sales, the company is considering paying commissions to its sales force. The controller, John Wallace, asks Collin to complete an analysis assuming sales would increase 25% under the proposed sales commission plan. This analysis should include 1) the new breakeven sales figure and 2) the operating profit under the new sales commission plan. Collin...
Select the statement that is untrue. The following factors in ASIC v Adler were taken into...
Select the statement that is untrue. The following factors in ASIC v Adler were taken into account when the court disqualified him as a director: a.Loss suffered by the shareholders. b.Dishonest conduct; c.Abuse of trust; d.His negotiation skills as a director; e.Loss suffered by the company; 1 points   QUESTION 2 Select the statement that is untrue. Remedies for breach of fiduciary duty are: a.Recission of contract. b.Constructive trust; c.Account for profits; d.Equitable compensation; e.Dejunction; 1 points   QUESTION 3 Are directors...
Presented below are five scenarios where ethical violations may have occurred. The student should assess each...
Presented below are five scenarios where ethical violations may have occurred. The student should assess each scenario relative to whether it violates one or more of the following "ethical norms," or none at all. The norms, plus the “null hypothesis,” are: Organizational norms (O), which consist of workplace rules/expectations (e.g., be on time, don’t shirk your work, follow the patrol guide). Professional norms (P), which are rules binding on members of one or another profession, (e.g., doctors must "do no...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT