0.4 pounds per cubic feet - a very massive gas!
The volume is 10 cubic feet.
10
14,300 pounds. Sand has a density of 100 pounds per cubic foot.
Volume = 10 ft3 (given) Density = 0.4 pounds per ft3 Specific gravity = about 0.0064 (using 62.5 pounds per ft3 for water)
Cubic feet is a measure of volume. Pounds are a measure of weight. These two values cannot be directly converted without knowing the density of the material in question.
You need to find the density of helium in pounds per cubic foot. Then since density is mass/volume, divide the mass by the density. You may find getting the density into the units you need to use a challenge.
It is 4.5 pounds per cubic foot.
It ranges from 62.43 pounds per cubic foot at 40 deg F to 59.81 pounds per cubic feet at 100 deg F.
If the density is 20 pounds per cubic foot, then each cubic foot you have will weigh 20 lbs. However you are told that you have 30 cubic feet so :-30 * 20 = 600 lb.
10368 cubic feet of what?
Pounds can't be converted to cubic feet. Pounds measure mass, while cubic feet measure volume.
pcf stands for Pounds per Cubic Feet. Therefore it is a measure of density.
Cubic feet can't be converted to pounds. Cubic feet measure volume, while pounds measure mass.