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Author Question: Modern telescopes are capable of seeing bright galaxies up to about A) 1 million light-years ... (Read 152 times)

WhattoUnderstand

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on: Jul 27, 2018
Modern telescopes are capable of seeing bright galaxies up to about
 
  A) 1 million light-years away.
  B) 10 million light-years away.
  C) 1 billion light-years away.
  D) 10 billion light-years away.
  E) 1 trillion light-years away.

Question 2

Two pairs of sunspots appear similar, but if one photo was made in 1990, and the next photo was made in 2002, what difference would we note?
 
  What will be an ideal response?


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CourtneyCNorton

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

D

Answer to Question 2

In the 12 years, the magnetic field polarities will have reversed.


WhattoUnderstand

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Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

nguyenhoanhat

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Reply 3 on: Yesterday
:D TYSM

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