Around 750 g
The area that 40 pounds of sand will cover at a depth of 1 inch can be estimated based on the density of sand, which is typically around 100 pounds per cubic foot. Since 40 pounds of sand is about 0.4 cubic feet, and 1 inch is ( \frac{1}{12} ) of a foot, the area covered would be approximately 4.8 square feet. Therefore, 40 pounds of sand will cover roughly 4.8 square feet at a depth of 1 inch.
50 feet per minute.
10 miles per hour = 142/3 feet per second
At 12 inch per foot that is 3.14x30x30*2/12/4 = 117.75 cubic feet of sand at 100 pounds per cubic foot = 11,775 pounds (5.88 tons). Since a yard is 27 cubic feet that is 117.75/27 = 4.4 yards
Around 750 g
Dry sand weighs about 100 lbs. per cubic foot.There are 27 cubic feet in a cubic yard, so that would make the weight of dry sand about 2700 lbs. per cubic yard.To see the weight of wet sand and many other common materials, click the "Actual Weight of Sand can be found here:"link below!
Divide by its density.
A 2500 square foot area x 4' deep is 10000 cubic feet. So you need 10,000 cubic feet of sand. Dry sand has a density of 80-100 pounds or so per cubic foot, so that's somewhere between 800,000 and a million pounds of sand.
14,300 pounds. Sand has a density of 100 pounds per cubic foot.
Masonry sand is estimated to weigh approximately 160 pounds per cubic foot. Therefore, it would take 12.5 cubic feet of masonry sand to equal one ton.
It depends on the moisture content of the sand (wet or dry) but as general rule of thumb there is 1.5 tonne of sand per cubic metre or to answer your question correctly 1500Kg per cube.
50 feet per minute.
5,280 feet per mile.
176 feet per minute equates to two miles per hour.
That depends on the pounds per cubic feet (PCF) of the the sands. Sand will vary from one place to another. Assuming 106.5 pcf, 1 cubic yards (27 cubic feet) would be 1.44 tons, but 2 tons would be the 2 tons recommended order for safety's sake. A like to a sand calulator is attached.
On average, wet sand can weigh around 120-150 pounds per cubic foot. Given that 1 gallon is approximately 0.1337 cubic feet, 55 gallons of wet sand may weigh between 725-910 pounds.