yaso3
yaso3 yaso3
  • 28-06-2015
  • Physics
contestada

Why is plastic and foam a good material for ear defenders?

Respuesta :

HistoryGuy HistoryGuy
  • 28-06-2015
The main reason why both plastic and foam are good materials for ear plugs and other acoustic treatment is that they're very dense but at the same time have little holes that absorb the sound waves. 
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