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vladeremenko8
@vladeremenko8
June 2022
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Яка вага соснової дошки якої 0,5м,ширина 10см, товщина 20мм, а густина становить 500 кг/м3? ток в конце м в куби
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lstava
Дано:
а = 0,5 м P = gm
b = 10 см = 0,1м m = ρV
c = 20 мм= 0,02м V = abc
ρ = 500 кг/м³ P = gρabc
P - ? P = 9,8·500·0,5·0,1·0,02 = 4,9 H
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Answers & Comments
а = 0,5 м P = gm
b = 10 см = 0,1м m = ρV
c = 20 мм= 0,02м V = abc
ρ = 500 кг/м³ P = gρabc
P - ? P = 9,8·500·0,5·0,1·0,02 = 4,9 H