tahniah tahniah
  • 20-04-2015
  • Chemistry
Answered

what must astronauts use microphones and headphones in outer space



Answer :

HistoryGuy HistoryGuy
  • 20-04-2015
In order for sound to be hear, it must travel through a medium, such as air, through which its waves can make a disturbance. In space there is no air, so microphones must be used.
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