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Author Question: X-rays travel at a greater speed than radio waves. Indicate whether the statement is true or ... (Read 49 times)

pane00

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X-rays travel at a greater speed than radio waves.
 
  Indicate whether the statement is true or false

Question 2

Approximately, what basic composition are all stars born with?
 
  A) half hydrogen, half helium, no more than 2 percent heavier elements
  B) three-quarters hydrogen, one-quarter helium, no more than 2 percent heavier elements
  C) 90 percent hydrogen, 10 percent helium, no more than 1 percent heavier elements
  D) one-quarter hydrogen, three-quarters helium, no more than 2 percent heavier elements
  E) 98 percent hydrogen, 2 percent helium



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katkat_flores

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Answer to Question 1

FALSE

Answer to Question 2

B




pane00

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Reply 2 on: Jul 27, 2018
Gracias!


Liddy

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Reply 3 on: Yesterday
Excellent

 

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