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DASPRINCGEOENG$1010\mathrm{.}4\mathrm{.}008.$

Refer to the figure below. Determine the vertical stress increase $($in $k\frac{N}{m^2}),{}_{z^{\text{'}}}$ at point A with the following values.

$q_1=69k\frac{N}{m}$

$x_1=2m$

$q_2=295k\frac{N}{m}$

$x_2=3m$

$z=2m$

${}_z=$

$k\frac{N}{m^2}$

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