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Author Question: Today, Mars has virtually no magnetic field. Indicate whether the statement is true or ... (Read 19 times)

nautica902

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on: Jul 27, 2018
Today, Mars has virtually no magnetic field.
 
  Indicate whether the statement is true or false

Question 2

Which of the following methods uses the principle of orbital acceleration to detect planets around another star?
 
  A) measuring a single Doppler shift of a star, one time
  B) measuring change in the Doppler shifts of a star over the course of many nights
  C) taking a picture of the planet next to the star
  D) measuring the change of light of a star as the planet crosses in front of it


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upturnedfurball

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

TRUE

Answer to Question 2

B


nautica902

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Reply 2 on: Jul 27, 2018
Excellent

xiazhe

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Reply 3 on: Yesterday
Wow, this really help

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