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Автор - Alu222

Плизз 7 класс физика 18 баллов

Ответ

Автор - rogeoctadod

Дано

m(масса)=1.5т

Толщина песка= 5 см

Р ( плотность, ро)=1500кг/м3

S=?

CИ  m=1.5т=1500кг

толщина=0.05м

Решение

V= m/P

V= 1500кг/1500кг/м3 (сокращаем килограммы) =1м3

S=1м3/0.05м=20м2


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