Water flow

How much water flow in pipe with a diameter of 16 cm in 1 hour if the water velocity is 2.5 m/s?

Result

V =  180956 l

Solution:

D=16/10=85=1.6 dm r=D/2=1.6/2=45=0.8 dm S=π r2=3.1416 0.822.0106 dm2 v=2.5 10=25 dm/s t=3600 s s=v t=25 3600=90000 dm V=s S=90000 2.0106180955.7368180956 lD=16/10=\dfrac{ 8 }{ 5 }=1.6 \ \text{dm} \ \\ r=D/2=1.6/2=\dfrac{ 4 }{ 5 }=0.8 \ \text{dm} \ \\ S=\pi \cdot \ r^2=3.1416 \cdot \ 0.8^2 \doteq 2.0106 \ \text{dm}^2 \ \\ v=2.5 \cdot \ 10=25 \ \text{dm/s} \ \\ t=3600 \ \text{s} \ \\ s=v \cdot \ t=25 \cdot \ 3600=90000 \ \text{dm} \ \\ V=s \cdot \ S=90000 \cdot \ 2.0106 \doteq 180955.7368 \doteq 180956 \ \text{l}



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