seg = g -> 9.8;
se\[Rho] = \[Rho] -> 1024;
sev = v -> 0.3;
sed = d -> 2;
seE = capse -> 5*10^9;
seD = D -> (capse*d^3)/(12*(1 - v^2)) /. seE /. sed /. sev;
se\[CapitalGamma] = \[CapitalGamma] -> D/(\[Rho]*g) /. seD /. seg /.
se\[Rho];
Subscript[seM, e] = Subscript[M, e] -> 917*d /. sed;
se\[Sigma] = \[Sigma] -> Subscript[M, e]/(\[Rho]*g) /. se\[Rho] /.
seg /. Subscript[seM, e];
seh = h -> 1000;
seQ = Q -> 0;
se\[CapitalLambda] = \[CapitalLambda] -> Q/(\[Rho]*g) /. seQ /.
seg /. se\[Rho];
sec = c -> 1500;
Subscript[sek, 1] = Subscript[k, 1] -> (\!\(
\*SubsuperscriptBox[\(k\), \(0\), \(2\)] -
\*FractionBox[
SuperscriptBox[\(\[Omega]\), \(2\)],
SuperscriptBox[\(c\), \(2\)]]\))^(1/2) /. sec;
Plot[\[Omega]^2 = ((1 + \[CapitalGamma]*
\!\(\*SubsuperscriptBox[\(k\), \(0\), \(4\)]\) - \[CapitalLambda]*
\!\(\*SubsuperscriptBox[\(k\), \(0\), \(2\)]\))*g*Subscript[k, 0]*
Tanh[Subscript[k, 0]*h])/(
1 - \[Sigma]*g*Subscript[k, 0]*Tanh[Subscript[k, 0]*h]) /.
seg /. se\[CapitalGamma] /. se\[CapitalLambda] /. seh /.
se\[Sigma] /. sec /. Subscript[sek, 1], {Subscript[k, 0], 0, 0.1}]