$(10\%)$ A $0\mathrm{.}8m$ diameter submerged pipeline resting on an essentially horizontal sea floor is subjected to a $4m$ high, $11s$ wave propagating normal to the pipeline axis. The water depth is $14m.$ Assume a bottom friction coefficient of $0\mathrm{.}8$ and $C_d=1\mathrm{.}8$ and $C_l=2\mathrm{.}5.$ What minimum weight per meter of length should the pipeline have if it relies on its weight for stability?