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Author Question: Mercury's period of rotation is exactly _______________ of its orbital period. Fill in the ... (Read 113 times)

melly21297

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Mercury's period of rotation is exactly _______________ of its orbital period.
 
  Fill in the blank(s) with correct word

Question 2

The main observable difference separating Type I and Type II supernovae is ____.
 
  a. neutrino emission
 b. iron absorption lines
 c. a difference in luminosity of several thousand times
  d. the presence or absence of hydrogen absorption lines
  e. the presence or absence of hydrogen emission lines



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kalskdjl1212

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Answer to Question 1

two thirds
two-thirds
2/3rd
2/3

Answer to Question 2

e




melly21297

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


rachel

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Reply 3 on: Yesterday
Wow, this really help

 

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