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p0=100000[Pa];
qc=1000[kg/m3];
g=10[N/kg];
h=30[m].
Wzór:
p=p0+qc*g*h;
Jednostka:
[p]=[(kg/m3)*(N/kg)*m]=[N/m2]=[Pa];
Obliczenia:
p=100000+1000*10*30=100000+300000=400000[Pa]=0,4[MPa].
Odp.Co najmniej p=0,4[MPa].