There is not enough information. You need the mas of an object to carry our the conversion.
0.4 pounds per cubic feet - a very massive gas!
You cannot convert cubic feet (volume) to lbs. (weight) without specifying the material, and particularly the density of the material.
The conversion is impossible.You need to know the density of your charcoal.
Divide by its density.
one pound of what? cubic feet is unit for volume and pound is unit for weight. So, cubic feet can only be calculated if you know the material and its density.
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.
It all depends upon the density of the substance. 4.8kg of Hydrogen [gas] will take up much, much more cubic meters than 4.8kg of Mercury.Cubic meters are a measure of volume whereas kilograms are a measure of weight. Volume and weight are related by density = weight ÷ volume - the lower the density, the greater the volume for the same weight!
Density value is missing.
It depends on 10mm what, and the density (or specific gravity) of whatever that substance is.
There are 764.554858 liters in a cubic yard of topsoil (or anything else).
It is not possible to answer the question without knowing the density of the object.
It depends on the density of the substance