Question

Water flows through a circular pipe whose internal diameter is 2 cm, at the rate of 0.4m per second

Answer 1

So what is your question

Answer 2

Answer:

45cm

Step-by-step explanation:

Dimensions of pipe:

D=2cm,r=1cm

Dimensions of tank:

R=40cm

Time=1/2 hour=30 minutes

Speed=0.4 m/s(=40cm/s)(1m=100cm)

Now, length of water=speed x time

=40 x 30 x 60(converting

minutes into hours)

=72000

Volume of water in pipe=π x r^2 x h

=π x 1 x 1 x72000

=72000π

Volume of water in pipe=volume of water on tank

72000π=π x R^2 x h

72000=40 x 40 x h

h=72000/1600

=45cm