This topic contains a solution. Click here to go to the answer

Author Question: Because the Hubble constant equals 70 km/s/Mpc, a galaxy with a recession velocity of 4,900 km/s ... (Read 186 times)

lidoalex

  • Hero Member
  • *****
  • Posts: 538
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
Answer to Question 1

b

Answer to Question 2

a




lidoalex

  • Member
  • Posts: 538
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review


skipfourms123

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

For a complete list of videos, visit our video library