SOLUTION: Water in a 14mm diameter pipe flows at 2m/s. How many litres flow along the pipe in 1 minute?

Algebra ->  Test -> SOLUTION: Water in a 14mm diameter pipe flows at 2m/s. How many litres flow along the pipe in 1 minute?      Log On


   

Question 1205442: Water in a 14mm diameter pipe flows at 2m/s. How many litres flow along the pipe in 1 minute?
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!
In one second, a cylinder of water 2m (2000 mm) in height (length) and 
diameter 14mm (radius 7mm) has passed through the pipe.

That cylinder of water has volume V=pi%2Ar%5E2%2Ah=pi%2A7%5E2%2A2000=307876.0801

cubic millimeters.  In one minute (60 seconds), 60 of those cylinders of
water have passed through the pipe.  That's 60%2A307876.0801=18472564.8
cubic millimeters. There are 1000000 cubic millimeters in a liter, so that
would be 18.4725648 liters of water passes through the pipe in 1 minute.

Edwin