Question

a tap with internal diameter 10 CM flows with the velocity of 10ms after travelling for 20 CM find it's diameter.
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Answer 1

Answer:

Calculate the flow rate (Q) using,

Q = (Density)*(Flow area of tap) *(velocity of water)

Calculate the volume of the cylinder using,

V = (pi)*(r^2)*(h)

And finally calculate the time required using,

t = V/Q