SOLUTION: A circular pipe is 30 cm ling. Its internal and external diameters are 3 cm and 4cm respectively. If water flows through the pipe at a rate of 5cm/s into an empty rectangular t

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Question 1042863: A circular pipe is 30 cm ling. Its internal and external diameters are 3 cm and 4cm respectively.

If water flows through the pipe at a rate of 5cm/s into an empty rectangular tank, find the volume of water delivered in 20 seconds.
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
L for length, volume moved is based on the INSIDE diameter 3 or the value of 1.5 cm. RADIUS.

pi%2AL%2A%281.5%29%5E2 cubic cm.

Amount of water at rate of 5 cm/s for 20 seconds
pi%2A5%2A1.5%5E2%2A20
pi%2A100%2A1.5%5E2
225pi
or
706.9 cubic centimeters.