8
If there was a cylinder of length 4ft that fits the pipe, ie has a diameter of 12in flowing through the pipe it would take 1 second to pass a point, or in other words, in 1 second a volume equal to that of the cylinder has flowed through the pipe. Thus:
flow = {pi} x 62 x 48 cu in ~= 5429 cu in per sec.
12inch x Pi
120
12inch x 12inch is 1ft x 1 ft=1 square foot You need 100 patio stones
4.08 US gallons.
2.54cm=1 Inch 12Inch=1 feet & 30.48cm=1 feet Now calculate it..... Ans:-2.1653543307086614173228346456693
The circumference is equal to pi ( 3.14167... ) times the diameter. You do the math.
12inch x Pi
120
192
12 4 on each "floor" 3 floors total
1950
12inch*12
The radius is 1.9 inches.
12inch x 12inch is 1ft x 1 ft=1 square foot You need 100 patio stones
joking, right?
Divide it by 2.
4.08 US gallons.