Ответ:

p-1000kr/m3

p-800kr/m3

h - 0.35

h1 1 / h * 2 = p * 2 / p * 1

h2=h1^ * p1/p^ 2

Ah=h1-h 2h 2=800^ 3 0.35/(000=0.28(m)

Lambda*h = 0, 35 - 0, 28 = 0, 07m = 7cm