Water flows through the pipe at $A$ at a mass rate of $480K\frac{g}{s},$ and then out the double wye with an average velocity of $1\mathrm{.}87438\frac{m}{s}$ through $B$ and an average velocity of $1\mathrm{.}87438\frac{m}{s}$ through $C.$ Where $D_A=575mm,D_B=225mm,D_C=150mm$ and $D_D=275mm.$ Take ${}_{\text{w}\text{a}\text{t}\text{e}\text{r}}=997k\frac{g}{m^3}$

Find these:

$1-$The average velocity at $A$ is$?$

$2-$The average velocity at B is$?$

$3-$ The average velocity at C is$?$

$4-$ the average velocity at D is$?$

$1\mathrm{.}87\frac{m}{s}$

$1\mathrm{.}87\frac{m}{s}$

$1\mathrm{.}41\frac{m}{s}$

$0\mathrm{.}48\frac{m}{s}$