Hello,
I am working on a metric conversion for my welding inspection class but I don't under stand answer ?
I'd appreciate someone telling my how they got to the answer.
Thanks
2007-10-19 17:13:46 · 4 answers · asked by skull101a 1 in Science & Mathematics ➔ Engineering
getting the answer is easy, you got that already but the explanation is kind of wordy. several step conversion. first turn liters to cubic feet with a conversion that you can get from almost any website or textbook. liters x 0.03531=cubic feet.
22x0.03531=0.077682 cubic feet per min. now turn cubic feet per min to cubic feet per hour by multiplying by 60.
0.077x60 =46.6. you get the answer by manipulating your original number, 22liter/min, without changing its actual value. you do this manipulation by multiplying the original number by the number 'one' but its a special kind of 'one'. its a fracitonal form of one. you probably already know that any fraction that has the same value in its numerator and its denominator is equal to one, right.
(22liter/min)(0.03531cubic feet/liter)=0.077682 cubic feet/min
because the liter term is in the numerator and the denominator and it cancels itself out. o.o353 cubic feet per liter is like 'one' because they are equivalent to one another so now the 22 liter/min has been changed but its value is still equivalent.
2007-10-19 18:27:27 · answer #1 · answered by Anonymous · 0⤊ 0⤋
While it is almost certain that the 46.6 ft/hr should be cubic feet per hour (for which you have already received good answers), if one really did want a velocity (ft/hr); if the 22L/m were flowing through a pipe with cross section of 1 square foot (13.54in diameter) the velocity would be 46.6 ft/hr
2007-10-19 23:24:32 · answer #2 · answered by tinkertailorcandlestickmaker 7 · 0⤊ 0⤋
ft/hr is not a flow rate. Should that be cubic feet (ft3 or cu ft) per hour?
1L/min = 2.11888 cu ft/hr
22 L/min = 46.6 cu ft/hr
If you need to find conversions like this, you might try megaconverter
http://www.megaconverter.com/mega2/
2007-10-19 17:29:57 · answer #3 · answered by Michael C 7 · 0⤊ 0⤋
I believe your 46.6ft/h is actually 46.6ft³/hr (Cubic feet not feet).
For this calculation, here are all the conversion figures you need...
22L/min ÷ 3.8L/gal = 5.8gal/min.
5.8gal/min x 60 min = 347.5gal/hr
347.5gal/hr ÷ 7.5gal/ft³ = 46.33ft³/hr...(Near enough to your figure of 46.6).
2007-10-19 17:34:38 · answer #4 · answered by Norrie 7 · 0⤊ 0⤋