A garden hose attached with a nozzle is used to fill a 7-gal bucket. The inner diameter of the hose is 1”, and it reduces to ½” at the nozzle exit. If it takes 32 s to fill the bucket with water, determine the average velocity of water at the nozzle exit
"v=\\frac{r_1+r_2}{2t}=3 .5~\\frac{in}s."
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