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При падении дождевой капли массой 20 мг сила тяжести совершила работу 0,4 Дж. С какой высоты упала капля?

anastasiya249 anastasiya249    3   16.04.2019 23:00    3

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TAISKAKISKA TAISKAKISKA  30.05.2020 00:13
Стеречь, стерегут ,стерегёт
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