This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: If a galaxy is located at a distance of 18 Mpc and is found to have recessional velocity of 1170 ... (Read 23 times)

Cooldude101

  • Hero Member
  • *****
  • Posts: 557
on: Jul 27, 2018
If a galaxy is located at a distance of 18 Mpc and is found to have recessional velocity of 1170 km/s, what is Hubble's constant based only on this galaxy?
 
  a. 65 km/s
  b. 75 km/s
  c. 55 km/s
  d. 85 km/s
  e. 95 km/s

Question 2

What is the difference between a planetary nebula and a supernova remnant?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

komodo7

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 27, 2018
Answer to Question 1

a

Answer to Question 2

A planetary nebula is the result of an aging giant star expelling its outer atmosphere in repeated surges to form an object composed of ionized gas. A supernova remnant is the nebular remains of a supernova explosion.


Cooldude101

  • Member
  • Posts: 557
Reply 2 on: Jul 27, 2018
Gracias!

Liddy

  • Member
  • Posts: 342
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

This squirrel, who was looking for a treat, has become desensitized to humans. The distance between This squirrel, who was looking for a treat, has become desensitized to humans. The distance between
In Chuck Close's portrait, the face is quite recognizable when viewed from a distance. Close ... In Chuck Close's portrait, the face is quite recognizable when viewed from a distance. Close ...
This Powertrain Control Module (PCM) is located under the hood on this Chevrolet pickup truck. This Powertrain Control Module (PCM) is located under the hood on this Chevrolet pickup truck.
This PCM on a Chrysler vehicle can only be seen by hoisting the vehicle because it is located next ... This PCM on a Chrysler vehicle can only be seen by hoisting the vehicle because it is located next ...
A ship is being pulled through a harbor at constant velocity by two tugboats as shown in the ... A ship is being pulled through a harbor at constant velocity by two tugboats as shown in the ...
Video: Type of Transport - Active and Passive Processes

For a complete list of videos, visit our video library