A soil borrow material in its natural state in the ground has a unit weight of 125 pcf. Its natural water content is 15 %. What is the dry weight of this material?
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- fined the average infiltration capacity at 60 * min A ring infiltrometer test were made on sandy loam soil the results of the test are given in the data table below. The inside area ring is 113 cm. Time (minute) Water volume (cc 01 01 1. 5.75 10 43.70 30 89.7 60 124.2 90 140.9 150 154.7The average density of a man is 1.04 g/cm?. For 20% (by volume) of an 93-kg person to be above a lake's water, what volume of foam plastic, with a density of 0.58 g/cm³, must be used?Concrete will yield (crack and fail) at pressures around 70 Mega Pascals. That’s 70 million Pascals. A 100 tonne load is to be driven over a concrete bridge. Each tyre on the truck has a contact area of around 0.00025 m2 with the bridge surface and transmits the weight force of the load through this contact. What is the minimum number of tyres needed to ensure that the concrete does not fail?
- On a snow course, a new snowfall accumulates over older snow that's been on the ground for a while. The new snow has a density of 0.13 and an average of 6 inches fell over the region. The total snowpack depth is measured as 1.9ft. The density estimate of the "old" snow is about 0.34. What is the total water equivalent (in inches)?Calculate the change in volume of a lead block of volume 1 m3 subjected to pressure of 10 atmospheres. Also calculate compressibility of lead. One atmosphere=1.013 x 105 N/m2A concrete mix design anticipates using 270 Ibs of water / cubic yard. All aggregate is determined to be in a saturated surface dry condition. If the desired water:cement ratio is 0.45 how much Portland cement will be required in each cubic yard of concrete? Cement content |(include units)
- If the Sink-and-float method is used to separate the same mixture of particles using a Pseudo liquid as medium made of suspension of fine ferrosilicon particles (ρPA = 6700 kg/m3) in water, at what content range (in vol %) of ferrosilicon solids in water should the medium be maintained for the separation? Hydraulic classification under free settling conditions in water at 20oC is used to separate a mixture of spheric particles having a size range of 5µm to 25µm. The densities of particles A and B are ρPA = 7500 kg/m3, ρPB = 2500 kg/m3 , respectively. For water at 20oC, density ρ = 1000 kg/m3 , viscosity µ = 1.005 x 10 -3 kg/m• s.Water at 65°F and 20 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. If both streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream.A boat is built of wood having a density of of 590 Kg/m3. The surface area of the bottom of the boat is 6 m2 and the total volume of its wood is 0.7 m3. When the boat is placed in fresh water (density : 1000 Kg/m3) , how deep is the bottom of the boat below water level?
- A solid, square pinewood raft measures 4.8 m on a side and is 2.70 m thick. What is the total mass of swimmers that the raft can carry and float with its top surface at water level?How to design a small dam? We've been tasked to do that for our project and we don't know what to do. It is for small-scale dam for agricultural irrigation. I want to know what are the factors to be considered or any relevant information to structurally design a dam.If the object has a mass of 1135 g and the volume of the water displaced is 250 cc, what is the object made of? material density (g/cc) Aluminum 2.70 Titanium 4.54 Nickel 8.90 Copper 8.96 Steel 7.87 Ausenitic stainless steel 7.8-8.0 Ferric stainless steel 7.7-7.8 Martensitic stainless steel 7.9-8.1 A) Nickel B) Steel C) Titanium D) Aluminum