Since the title of the question is How do I convert a decimal number to a list of octal digits in Common Lisp?, I think it's worth considering some options that don't use truncate, since that might be sort of expensive (e.g., see Improving performance for converting numbers to lists, and base10 to base2, and the observation that using binary arithmetic instead of quotient and remainder is faster).
Fresh concrete can weight about 3700 lbs for every cubic yard. The density will also determine how much is its weight. assuming its weight to be around 150 lbs for per cubic f â¦ eet. This would make it around 4000 lbs which could come to 2 tons.
depends upon the rock type and how fine it is, but one reference notes that one cubic foot of gravel typically weighs about 100 pounds. So 1 ton has 2000/100 or 20 cubic feet of gravel. A cubic yard is 3x3x3 = 27 cubic feet to the cubic yard.Answer is 20/27 or 0.74 cu yard. I'd round that to 3/4 cubic yard. Other factors that affects the volume of gravel is the moisture content and the grading of the material. ton = 2,000 lbs 1 cubic yard = 2400 to 2900 lbs depending on the nature of the material. Dry random size gravel particles will pack or settle together the tightest resulti â¦ ng in the heavier weight. Dry uniform size particles have more air voids resulting in lighter weight.