It depends what the ash comes from.
The weight of fly ash per cubic foot is based on the specific gravity of the particular fly ash multiplied by the weight of water (62.4 lbs.) per cubic foot. Most fly ash has a specific gravity between 2.15 and 2.30, depending on the source. To calculate the weight per cubic foot of fly ash with a specific gravity of 2.3, the formula is as follows: 2.3 X 62.4 = 143.52 lbs per cubic foot
A cubic foot of loose coal "stoker coal" weighs between 40 and 60 pounds. A solid cubic foot of coal can weight up to 84 pouinds. Moisture and foreign material such as dirt and ash will of course affect the weight.
At sea level and 15 deg C, the weight of a cubic metre of air is approx 11.0 Newtons.
Ash weighs nothing.
The eruption, by some estimates, produced about 140 million cubic meters or ash.
It depends upon the species as weights can very greatly, even among softwoods, such as pine, fir, or especially cedar or cypress. Additionally, moisture content and treatments can impact the finished weight. Southern Yellow pine, fresh cut varys from 36 lbs/cubic foot (20% moisture) to 53 lbs/cubic foot for fresh cut (green). Pressure treating also adds additional moisture, thus weight. If the lumber is from a lumber yard, not treated, kiln dried, dimensional pine lumber would typically weigh 37 lbs / cubic foot, so a 16' 2 x 4, actually 16' 1.5" x 3.5" would be: 1.5 X 3.5 X 192 = 1008 cubic inches 1728 cubic inches in a cubic foot so: 1008 / 1728 = 0. 583 cubic feet weight of pine = 37 lbs/cubic foot X 0.583 = 21.58 lbs for a 16' 2" x 4". or 1 1/2" = 0.125 cubic feet 3 1/2" = 0.292 cubic feet .125 X .292 X 16 = 0.583
Measure circumference at 4.5 from ground. Measure height by whatever method you want. There are several ways to do it. Take the height and multiply it by the circumference then divide by four. That gives the volume of the tree trunk minus the branches which can add a lot. When an ash tree is fully grown and leafed out the leaves alone can weigh as much as a ton (depending on hydration level). The branches account for about 800 - 1,000 pounds. So a 30 foot tall ash at about 50 pounds per cubic foot of volume in the trunk with a circumference of 6 feet will weigh 6ft x 30 / 4 = 2250 pounds plus the branches. That is minimal depending on the hydration level of the tree.
depending on size and what kind of wood ash wood is heavy
1700 foot
1.2 metric tons equals 1 cubic meter of Fly ash (one of the residues of coal combustion).
yes it is, they are trying to re-build Pompeii
The Answer is 45Kg