how to calculate the weihgt of circular cones (1/3) x pi x radius2 x height x density = pounds where :: radius = radius of base in inches density = pounds per cubic inch height = height in inches (or ...
Question about 40 G Natural Gas Water Heater
...molecules separate apart in very hot air and pilot light goes out since there is not enough oxygen density to support combustion. http://waterheatertimer.org/images/Water-heater-in-attic-800.jpg
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