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In a falling-head permeability test the initial head of 1.00 m dropped to 0.35 m in 3 h, the diameter of the standpipe being 5 mm. The soil specimen was 200 mm long by 100 mm in diameter. Calculate the coefficient of permeability of the soil.
The pressure gage on an airplane flying overhead indicates that the atmospheric pressure at that point is 9.7 psia and that the air temperature is 42 deg. Fahrenheit. Assume a linear decrease of temperature with elevation
The following wind conditions are expected: V = 10 i - 5 j mph for 0 10 hr. Draw to scale the expected streakline of the stream for t = 3, 10, and 15 hr.
A college student borrows $1500 during his senior year. The loan is to be repaid in 20 equal quarterly installments. The interest rate is 5% per year with the first payment to be made 3 years after the date of the loan. What will be the approximat..
A photograph is taken of a transverse wave travelling along a length of rope. At this instant the shape of the wave is described by y = (2 m) sin ((0.8 rad.m-1)x+0.8 rad). The speed of the wave is 2 m/s. Calculate the distance between two successi..
Due to a crash at a railroad crossing, an overpass is to be constructed on an existing level highway. the existing highway has a design speed of 50 mi/h.
The inflow to a small reservoir during a storm may be described by the equations Q=1000(1-e^-kt) where Q= flow in cfs k= runoff rate = 1.0 per hour t = time in hours The outflow through the dam gates is held constant at 800 cfs.
What is the velocity of an electron that falls through a magnetic field aligned electric potential of volts across an accelertion region that is 10 k long
A 100 ft cut steel tape was used to measure between two property markers. The rear surveyor held 93 ft, while the head surveyor cut .67ft. What was the distance between the markers
A tidal channel, which may be assumed to be rectangular, is 40 m wide and conveys a discharge of 60 m3/s at a depth of 1.52 m. A tidal bore is seen to propagate upstream with a wave speed of 5 m/s.
A cylindrical specimen of some alloy 50.26 mm2 in cross sectional area is stressed elastically in tension. A force of 1620 N produces a reduction in specimen diameter of 5 X 10-3 mm. Compute Poisson's ratio for this material if its modulus of elas..
A force, 90 N in magnitude, is applied to control rod AB as shown. Knowing that the length of the rod is 225 mm, determine the moment of the force about point B by resolving the force into components along AB and in a direction perpendicular to AB..
The solids in a specimen have a specific gravity of 2.65. If the oven-dry mass of the specimen is 25 kg, what is the volume of the solids in it
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