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Author Question: After a massive-star supernova, what is left behind? A) always a white dwarf B) always a black ... (Read 74 times)

sabina

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on: Jul 27, 2018
After a massive-star supernova, what is left behind?
 
  A) always a white dwarf
  B) always a black hole
  C) always a neutron star
  D) either a white dwarf or a neutron star
  E) either a neutron star or a black hole

Question 2

You are currently emitting electromagnetic waves.
 
  Indicate whether the statement is true or false


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xiaomengxian

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

E

Answer to Question 2

TRUE


sabina

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

T4T

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Reply 3 on: Yesterday
Excellent

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