Once we know these heads, we will then subtract the suction head from the discharge head and the amount remaining will be the amount of head that the pump must be able to generate at the rated flow. Here is how it looks in a formula: System head = total discharge head - total suction head. H = hd - hs.
Observation Point. This well used path climbs a short, steep, wooded hillside to a viewpoint of Old Faithful and nearby features, then continues across the hill to Solitary Geyser, a bubbling pool in an open area of the forest.
Observation. This is the midpoint of the steps of the scientific method and involves observing and recording the results of the research, gathering the findings into raw data. The observation stage involves looking at what effect the manipulated variables have upon the subject, and recording the results.