(Solved): 2) For the pipe-flow reducing section of the figure shown with points 1 (flange) and 2 (outlet), d ...

2) For the pipe-flow reducing section of the figure shown with points 1 (flange) and 2 (outlet), diameter $${\mathrm{D}}_1=8\mathrm{cm}$$, diameter $${\mathrm{D}}_2=5\mathrm{cm}$$, and $${\mathrm{p}}_2=1\mathrm{atm}$$. All fluids are at $$20^{?}\mathrm{C}$$. If $${\mathrm{V}}_1=5\mathrm{m}/\mathrm{s}$$ and a manometer reading at point 1 shows $$\mathrm{h}=58\mathrm{cm}$$ of mercury, estimate the total horizontal force resisted by the flange bolts.