A liquid $(=1\mathrm{.}65$ g$/$cm$3)$ flows through a horizontal pipe of varying cross section as in the figure below. In the first section, the cross$-$sectional area is $10\mathrm{.}0$ cm$2,$ the flow speed is $261$ cm$/$s$,$ and the pressure is $1\mathrm{.}20105$ Pa$.$ In the second section, the cross$-$sectional area is $3\mathrm{.}50$ cm$2.$

$($a$)$ Calculate the smaller section$\text{'}$s flow speed.

m$/$s

$($b$)$ Calculate the smaller section$\text{'}$s pressure.

Pa