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Show 86 ft . ( Ton You ) ask what the velocity is when the water is ( 18 IS ) feet on the gage . That ( depends "lepends lepends ) upon how much ( cross-sectional crosssectional ) area you have . As shown here you can come out with one area in the same stage of water , at a velocity of five miles an hour , and at another point at the same stage of water have a velocity of nearly seven miles an hour . And ( fur fur- fur ) ther down , at stage 11 feet , as shown by the ( meas meas- meas ) urements , although the ( vater water ) was at the same stage , there was a velocity of 3 % miles an hour for one measurement , and nearly five miles an hour for ( an- an ) other measurement , due to the fact that it had scoured out i The extra velocity is caused by more water . The total amount of water equals the area by the ( ve- ve ) locity . If you leave the gage height the same , but you increase the area , you decrease the velocity . If you leave the gage of the water the same , but fill in that channel , you increase the velocity . That is if ( 3rou you ) leave the stage of ( the tlie ) river the same , but fill in the channel by a fill , why , if you have to pass the same amount of water at a given ( point -point point ) , you have to increase the velocity . ( R . 4124-4136 . ) Recalled . ( ( K R ) . Vol . 23 , pp . ( 4142-4161 4-142-4161 ) . ) The zero of the gage is an arbitrary point , taken always below the known bottom of the river . The ( zero zero- zero ) of the gage does not ( mean inean ) anything at all , except as an arbitrary point from which all of the gage charts are referred back . It does not ( repre- repre epre- epre ) |