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Вопрос по физике:
определите массу гранитного куба с ребром 80 см
пожалуйста подробнее, у меня завтра огэ-
Автор:
deven
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Ответ:
1331.2 кг
Объяснение:
m=p×V
p - плотность. значение таблично
р(гранита)=2600 кг/м^3
V=a×a×a
80 см = 0.8 м
V=0.8^3=0.512 (м^3)
m=2600×0.512=1331.2 (кг)
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