Сколько тонн нефти может поместиться в железно дорожную цистерну, объем которой равен 25 м3? Плотность нефти 800 кг/м3
А) 20000
В) 32
С)20
D) 320
MilaPlay123
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10.12.2020 20:15
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Дано:
V = 25 м³ - объём цистерны
ρ = 800 кг/м³ - плотность нефти
Найти:
m - масса нефти в цистерне
m = ρ · V = 800 · 25 = 20 000 (кг) = 20 т
С) 20 т