Refer to the figure below. Given: $L_1=4m,L_2=8m,l_1=l_2=2m,=16k\frac{N}{m^3},{}_{\text{s}\text{a}\text{t}}=18\mathrm{.}5k\frac{N}{m^3},$ and ${}^{\text{'}}=28.$ Use the charts presented below the answer fields.

Determine the theoretical depth of penetration.

$($Enter your answer to two significant figures.$)$

$D=,m$

Determine the anchor force per unit length.

$($Enter your answer to two significant figures.$)$

$F=,k\frac{N}{m}$

Determine the maximum moment in the sheet pile.

$($Enter your answer to two significant figures.$)$

$M_{\text{m}\text{a}\text{x}}=,kN-\frac{m}{m}$