Предмет: Физика, автор: rorjrhjr

На земле лежит прямоугольная чугунная плита, площадь основания которой равна 1,5м2, а толщина — 6 см.
Какова масса плиты? Определи давление плиты на землю
Принять:g=9,8

при необходимости ответ округли до тысячных
m=_ т
p=_ кПа​

Ответы

Автор ответа: kimandrej03
1

ρ=7000 кг/м³

S=1.5 м²

h=6 см=0.06 м

g=9.8 м/с²

m-?

p-?

m=ρV=ρSh=7000*1.5*0.06=630 кг=0.63 т

p=F/S=mg/S=630*9.8/1.5=4116 Па≈4120 Па=4.12 кПа

Ответ:m=0.63 т; p=4.12 кПа

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