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Unformatted text preview: 1 Problem. Lake A round lake of diameter d is fed by a river and drained by seepage. The normal flow rate of the river is Q in = 10 4 gal / min and is equal to the rate of seepage. Thus, the water level in the lake is constant. Should the lake level rise, the water from the lake flows through a triangular notch in a retaining wall and into a flood plain. Normally the water level matches the bottom of the triangular notch. !"#$% $($ )* "+$ ), *%."/ "# #0$ 1##. 2 #0$ #%)"*34"% *#50 )* #0$ 6".7 8)$9 2 6". 2%. 26 :")* Suddenly the flow rate of the river increases to 1.5 times the normal rate. The extra water flows out through the triangular notch at a rate determined by the height of the lake above the bottom of the notch. Q notch = h 5 / 2 (in gal/min) a) What are the units of if h is measured in meters? Solution. Since Q notch has units gal/min, must have units of gal min m 5 / 2 ....
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This homework help was uploaded on 02/15/2008 for the course MATH 1910 taught by Professor Berman during the Fall '07 term at Cornell University (Engineering School).
 Fall '07
 BERMAN

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