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Author Question: Recall that Hubble's law is written v = H0d, where v is the recession velocity of a galaxy located a ... (Read 78 times)

sarasara

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on: Jul 27, 2018
Recall that Hubble's law is written v = H0d, where v is the recession velocity of a galaxy located a distance d away from us, and H0 is Hubble's constant. Suppose H0 = 20 km/s/Mly. How fast would a galaxy 1000 Mly distant be receding from us?
 
  A) 20,000 km/s
  B) 20 Mly/s
  C) 0.20 times the speed of light
  D) 50 km/s
  E) 20 km/s

Question 2

Compared to Earth, Venus spins very rapidly on its axis.
 
  Indicate whether the statement is true or false


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mochi09

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

FALSE


sarasara

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Reply 2 on: Jul 27, 2018
:D TYSM

Zebsrer

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Reply 3 on: Yesterday
Excellent

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