$($Bernoulli$/$continuity$)$ Water flows steadily through the pipe shown in the figure below such that the pressures at sections $(1)$ and $(2)$

are $295$ kPa and $86$ kPa $,$ respectively. Determine the diameter of the pipe at section $(2),D_2,$ if the velocity at section $1$ is $22\frac{m}{s}$ and

viscous effects are negligible.