Oil with density of 0.8505 and velocity of 4m/s in a pipe that has a downward slope of 1: 50 (sine). at a certain point in the pipe, a pressure gauge shows a pressure of 80kpa.
determine the pressure at a point 200m downstream of the gauge if:
(a) the flow losses are ignored (ideal case);
(b) there is a flow loss equal to 10% of the total initial head.

(a) Pressure at point 200 m downstream: 113.4 kPa

(b) Pressure at point 200 m downstream: 105.4 kPa

Explanation:

The point of reference, that will be named Point A, is the pressure gage.

The point 200 m downstream will be named Point B.

With a slope of 1:50, the height difference between A and B is (1/50)*200=4m.

(a) In the case there is no friction losses, we can write

Because ther is no change in the diameter of the pipe, V=constant.

Rearranging

Then we have an increase in of 33.4 kPa, and pressure in Point B (downstream) is:

(b) If we consider 10% of the total initial head as friction loss, we have

In this case the rise in pressure is 25.4 kPa, due to the friction losses.

The pressure at point B is

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be