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3 Views · 06/18/20
Демонстрация закона сохранения на примере пружинного маятника
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04/02/20
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School education / Physics
Демонстрация закона сохранения на примере пружинного маятника
За учебником Физика 7 класс Перышкин А. В.
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3 Views · 06/18/20
