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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