A $1\mathrm{.}5m2m1m$ prism weighs $29\mathrm{.}4$ kN in water. What is the

specific gravity of the prism?

A$.1$

B$.1\mathrm{.}1$

$($c$.)2$

D$.0\mathrm{.}9$

A rectangular gate $3$ m in height and $2$ m wide. The gate is hinged at

the bottom. The upstream