1. m = 780кг; S = 2м²; p-?
p = F/S; F = mg; p = mg/S
2. F = 20Н; S = 0,1мм² = 10^-7м²; p-?
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Answers & Comments
1. m = 780кг; S = 2м²; p-?
p = F/S; F = mg; p = mg/S
p = 780*10/2 = 3,9кПа
2. F = 20Н; S = 0,1мм² = 10^-7м²; p-?
p = F/S; p = 20/10^-7 = 0,2ГПа
3. S = mg/p; 0,312м²
4. p = ρgh; 17040Па
5. h = p/ρg; 0,3м
6. F = ρghS; 672кН
3. S = mg/p; 0,312м²
4. p = ρgh; 17040Па
5. h = p/ρg; 0,3м
6. F = ρghS; 672кН