Question

we found thr waters velocity increased from 19.6 m/s in a certein hose to 25.5 m/s in its nozzle calculate the pressure in the hose given the absolute pressure in the nozzle is 1.01 *10Nm2 and assuming lavel firctionless​

Answer 1

Answer:

onsider an incompressible fluid flowing through a pipe that has a varying diameter and height, as shown in (Figure). Subscripts 1 and 2 in the figure denote two locations along the pipe and illustrate the relationships between the areas of the cross sections A, the speed of flow v, the height from ground y, and the pressure p at each point. We assume here that the density at the two points is the same—therefore, density is denoted by  

ρ

without any subscripts—and since the fluid in incompressible, the shaded volumes must be equal.

Figure is the schematics of a fluid flowing in an “S”-shaped pipeline with the cross-section area reducing from A1 (left bottom part) to A2 (right top part). The left bottom part is at the height y1 above the ground; right top part is at the height h2 above the ground. Fluid moves with the velocity v1 at the bottom part and v2 at the top part. Volume of fluid dv takes dx1 in the part of pipeline and dx2 in the top part of pipeline.

Explanation:

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