A pound of air is NOT a measure of pressure. A unit of pressure would be a weight ( a force really) for instance pound by a surface (square inch for instance).
Pound is a unit of weight only. At sea level on earth barometric pressure, 1 cubic metre weighs 1.2kg (or 2.64 pound). Which means 1 pound of air represents a volume of 0.379 cubic metre of air.
This obviously varies with atmospheric pressure (the air pressure) and the gravitional pull. a pound of air would represent a much bigger (6 times bigger roughly) volume on the moon for instance.
A pound is a pound, so they weigh the same. However, because air is less dense than iron, a pound of air would occupy a much larger volume than a pound of iron.
Both would weigh the same, as a pound of cold air and a pound of warm air both have the same weight. Temperature does not affect the weight of the air.
To float 1 pound, you would need to displace 1 pound of air, which is equivalent to approximately 13.6 cubic feet of air at sea level.
how much hot air do you need to pick up a 200 pound man
1 pound of air is equal to approximately 0.08 pounds of water. This is because air is much less dense than water, with air having a density of about 0.075 pounds per cubic foot and water having a density of 62.4 pounds per cubic foot.
By the way you worded it, the answer is a pound of bread and here's why; since bread is a solid we know it is denser than air. You said a pound, which is the imperial measurment of mass and therefore you multiply the density of bread by mass to obtain the weight (the unit for weight is lb wt or pound weight. If you worded the question as "what weighs more a pound weight of bread or..." than your answer would be the same.
One pound. Or sixteen ounces. Or .45 kilograms. Whichever you prefer.
if you want to ground pound you have to jump and the R button in air
It weighs exactly 1 pound and it's all free... for now!
15 pounds of air to 1 pound of gas
Er....one
There are approximately 7,000 grains in 1 pound.