$10.$ The $45-$degreee reducing bend shown below discharges $\backslash (0\mathrm{.}008\backslash$mathrm$\{$~m$\}^\{3/$ s$\}\backslash )$ of water into the atmosphere as shown below.

If the entrance diameter is $50$ mm and the exit diameter is $30$ mm $,$ the pressure at $(1)$ in kPa is most nearly what assuming elevation changes are negligible?

A$.40$

B$.45$

C$.50$

D$.55$

$11.$ Using the same diagram as in Problem $10,$ the force in the x $-$direction required to hold the bend in place $($in N $)$ is most nearly:

A$.50$

B$.76$

C$.120$

D$.140$

$12.$ Using the same diagram as Problem $10,$ the force in the $\backslash ($ y $\backslash )-$direction required to hold the bend in place $($in N $)$ is most nearly:

A$.51$

B$.64$

C$.82$

D$.106$