Please calculate the total head, hydraulic head, and elevation head of point A$,$B$,$C$,$

D$,$E$,$FBC$=30$cm$,$CD$=40$cm$,$DE$=50$

cm $,$ use cm as the unit

A $3\mathrm{.}0$ ft deep cut is to be made across an entire $\backslash (20000\backslash$mathrm$\{$ft$\}^\{2\}\backslash )$ site. The average unit weight of this soil is $115$ pcf$,$ and the average moisture content is $\backslash (8\mathrm{.}6\backslash \%\backslash ).$ It also has a maximum modified Pright of $122$ pcf and an optimum moisture content of $\backslash (12\mathrm{.}1\backslash \%\backslash ),$ based on the compacted toctor test. The excavated soil will be placed on a nearby site and $($a$)$ Compute an average relative compaction of $\backslash (94\backslash \%\backslash ).$

$($b$)$ Calculate the volume of fill that will be produced.

$($Note: assum the weight $($lb$)$ of water that is needed to be added during compaction