you need
• Physics or Engineering Handbook.
Guide
1
necessary to comply with a ton of units of mass in the International System - SI.So move tons in weight.To do this, multiply the weight at 1000.
example: m = 35 35 • 1000 = 35000 kg.
2
Doing this holds for the metric system.But we should remember about the existence of the so-called long and short tons.Long or English, a ton is most often used to determine the displacement of the vessel.To convert long tons to kilograms, multiply the weight on 1016.047 kg.Short or American, a ton is used in the United States and translated into kilograms by multiplying the mass at 907.185 kg.
3
under directories get the matter density ρ, which is made from the body.To make the right choice, consider the state of the substance.Since the density of water, ice and water vapor varies.A density charcoal (seam) in more than seven times greater bulk density of coal, and almost twice the density of the coal dust.For example, ρ (charcoal) = 1450 kg / m³;ρ (coal dust) = 750 kg / m³;Bulk ρ (charcoal) = 200 kg / m³.
4
Use the formula V = m / ρ, to determine the volume of the body.

Example 1 ton of coal occupies a volume V = 1000/200 = 5 m³ and 1 ton of foam at ρ = 10 kg / m - V = 1000/10 = 100 m³.Thus, with the volume of cargo Gazelle 9 m³ body and capacity up to 1.5 tonnes per flight will be able to carry all the coal.And to deliver the foam need more than 11 flights.