Question

ФИЗИКА 8 КЛАСС 2 И 3 ЗАДАНИЕ
ЗА 5 МИНУТ ПЛИЗ

Answer 1

$4 times m1 + 2 times m2 = 3 times m3 \ 4 times m2 = 3 times (m1 + m3) \ \ m2 = frac{3 times m3 - 4 times m1}{2} \ 2 times (3 times m3 - 4 times m1) = 3 times (m1 + m3) \ 6 times m3 - 8 times m1 = 3 times m1 + 3 times m3 \ 3 times m3 = 11 times m1 \ m3 = frac{11 times m1}{3} = frac{11 times 0.042}{3} = 0.154 \ m2 = frac{3 times m3 - 4 times m1}{2} = frac{3 times 0.154 - 4 times 0.042}{2} = 0.147$
$l = 0.08 \ h = 0.06\ p(h2o)g {l}^{2} h = pg times 6( {l}^{2} times 0.01) \ p = frac{p(h2o)g {l}^{2} h}{0.06g {l}^{2} } = frac{1000 times 0.06}{0.06} = 1000$

Answer 2

где "l=0.08", начинается 3 задача