$1-63.$ Solve for indicated values:

a$.W_W=31\mathrm{.}5lb,V_W=f{t}^3$

b$.W_S=4\mathrm{.}04lb,G_S=2\mathrm{.}68,V_S=$

$f{t}^3$

c$.V_S=0\mathrm{.}613f{t}^3,G_S=2\mathrm{.}71,W_S=$

Ib

d$.V_W=0\mathrm{.}010f{t}^3,W_W=lb$

e$.W_S=118lb,V_S=0\mathrm{.}703f{t}^3,G_S=$

$1-64.$ The volume of a container is $0\mathrm{.}40f{t}^3.$ It holds $43$ lb of dry sand, which has a specific gravity

of $2\mathrm{.}65.$ Find the void ratio and unit weight.

$1-65.$ The unit weight of a soil is $122I\frac{b}{f}{t}^3$ at a water content of $12\mathrm{.}6\%.$ The specific gravity of the

soil is $2\mathrm{.}72.$ Find the dry unit weight, porosity, and degree of saturation.

$1-66.$ The unit weight of a fully saturated organic soil is $79l\frac{b}{f}{t}^3.$ A sample of it with a mass of

$161\mathrm{.}2$ g is dried, and the dry mass is $52\mathrm{.}3$ g $.$ Find the water content and dry unit weight of the

soil and the specific gravity of the soil particles.

$1-67.$ The unit weight of a soil being used in a highway fill is $126l\frac{b}{f}{t}^3,$ and the dry unit weight is

$112l\frac{b}{f}{t}^3.$ If the specific gravity of soil solids is $2\mathrm{.}65,$ find the water content, void ratio, and

degree of saturation.

$1-68.$ Soil in a highway is compacted to a unit weight of $133l\frac{b}{f}{t}^3.$ A sample of it is tested for water

content. The original mass was $163\mathrm{.}5$ g and the dried mass was $140\mathrm{.}4$ g $.$ Find the dry density

of the highway soil.

$1-69.$ The unit weight of a soil is $114l\frac{b}{f}{t}^3.$ A sample is tested for water content as follows:

weight $of$ soil $+$ beaker $228\mathrm{.}41g$

weight $of$ dry soil $+$ beaker $197\mathrm{.}94g$

weight $of$ beaker $104\mathrm{.}17g$

Find the water content and dry unit weight.

$1-70.$ The dry unit weight of a soil in the field is $98l\frac{b}{f}{t}^3.$ Lab tests indicate that its maximum dry

unit weight is $113l\frac{b}{f}{t}^3$ and minimum dry unit weight is $89l\frac{b}{f}{t}^3.$ Find the relative density.

$1-71.$ If the specific gravity of the soil particles in Problem $1-70$ is $2\mathrm{.}65,$ find $e,e_{\text{m}\text{a}\text{x}},$ and $e_{\text{m}\text{i}\text{n}},$ and

check the relative density calculation.

$1-72.$ The soil in Problem $1-70$ is densified by a vibrating probe in the field to a relative density of

$80\%.$ Find the dry unit weight of the soil after compaction. Also calculate its total unit weight

if the water content is $11\%.$

$1-73.$ A cofferdam is built as shown to allow construction along the shore. The dam is $28$ ft wide at

the bottom and underlaid by $3\mathrm{.}0$ ft of sand with $k=0\mathrm{.}0029f\frac{t}{s}.$ The head difference is $3\mathrm{.}5$ ft $.$

Find the seepage in $($a$)f\frac{t^3}{h}r$ per linear foot and $($b$)$ gallons$/$hr for the whole dam. Assume that

the length of flow path is $28$ ft $.$

I need answers to questions $63-70$