2. The soil borrow material to be used to construct a highway embankment has a mass unit weight of 110.0 pcf, a water content of
6%, and the specific gravity of the soil solids is 2.63. The contract specifications require that the soil be compacted to a dry unit weight of 122 pcf and the water content be held to 5.5%. a. How many cubic yards of borrow are required to construct an embankment having a 245,000-cy net section volume
1 answer:
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Answer:
a) , b)
, c) 1600
Explanation:
a) The Reynolds Number is modelled after the following formula:
Where:
- Fluid density.
- Dynamics viscosity.
- Diameter of the tube.
- Fluid speed.
The formula can be expanded as follows:
b) The Reynolds Number has this alternative form:
c) Since the diameter is the same than original tube, the Reynolds number is 1600.
Answer:
1064.8 kg/m³
Explanation:
Weight of the hydrometer = ρghA where ρ is the density, g is acceleration due to gravity, h is the submerged height and A is the cross sectional area.
W in water = ρwghwA
W in liquid = (ρliq)g hliq A where the cross sectional area is constant
W in water = W in liquid
(ρw)ghwA = (ρliq)g hliq A where ρw is density of water, ρliq is the density of liquid and hw and hliq are the heights of the liquid and that water. g acceleration due to gravity cancel on both sides as well as the constant A
pliq = × 1000 kg /m³ ( density of water) =(
) × 1000 = 1064.8 kg/m³