Предмет: Физика, автор: Азиз41

напишити диапазон частоты ультразвука?

Ответы

Автор ответа: belozerova1955
0
Волны, имеющие частоту больше, чем воспринимает наше ухо. Обычно, их частота выше 20 000Гц
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