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

Author Question: Because the Hubble constant equals 70 km/s/Mpc, a galaxy with a recession velocity of 4,900 km/s ... (Read 179 times)

lidoalex

  • Hero Member
  • *****
  • Posts: 538
on: Jul 27, 2018
Because the Hubble constant equals 70 km/s/Mpc, a galaxy with a recession velocity of 4,900 km/s would be a distance of ____ Mpc from Earth.
 
  a. 0.014
 b. 70
 c. 4930
 d. 4970
 e. 343,000

Question 2

What is the function of the receiver antenna of a radio telescope?
 
  a. To absorb the radio energy collected by the dish
  b. To collect and focus the radiation
 c. To follow a signal
 d. To move the telescope
 e. To control the shape of the dish


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

at

  • Sr. Member
  • ****
  • Posts: 359
Reply #1 on: Jul 27, 2018
Answer to Question 1

b

Answer to Question 2

a


lidoalex

  • Member
  • Posts: 538
Reply 2 on: Jul 27, 2018
Excellent

duy1981999

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Effect of substrate concentration on the initial velocity of an enzyme-catalyzed reaction Effect of substrate concentration on the initial velocity of an enzyme-catalyzed reaction
Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror Uranus's aurorae against its equatorial rings, imaged by the Hubble telescope. Unlike the auror
The Hubble Law The Hubble Law
Seyfert Galaxy NGC 1566 Seyfert Galaxy NGC 1566
The adolescent growth spurt in humans is seen as a “bump” in the height curve and a “spike” in the h The adolescent growth spurt in humans is seen as a “bump” in the height curve and a “spike” in the h
Calculate the velocity of the red rock after collision Angle measured counterclockwise from the ... Calculate the velocity of the red rock after collision Angle measured counterclockwise from the ...
Video: Bulk flow - Factors that influence bulk flow

For a complete list of videos, visit our video library