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Dane:
S=100[cm2]=0,01[m2];
g=10[N/kg];
h=20[cm]=0,2[m].
Wzory:
p=F/S , F=mg , m=V*d , V=S*h ,F=S*h*d*g , p=(S*h*d*g)/S;
p=h*d*g.
Jednostka:
[p]=[m*(kg/m3)*(N/kg)]=[N/m2]=[Pa]-paskal.
p=0,2*1000*10=2000[Pa]=2[kP] , d=1000[kg/m3].
Odp.Ciśnienie wynosi p=2[kPa].
Odp.2
Dane:
S1=10[cm2]=0,001[m2];
F1=10[N];
S2=100[cm2]=0,01[m2].
Wzór:
F2=(F1*S2)/S1;
F2=(10*0,01)/0,001=100[N].
Odp.F2=100[N].