Предмет: Физика, автор: Аноним

птица массой 250 г летит над землей на высоте 15 м Найдите её потенциальную энергию​

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Автор ответа: ivankorobejnikov21
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Проверь, используя основное свойство пропорции, являются ли данные равенства пропорциями:
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