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The mass of a wet sample of soil and its container is 0.33 kg. The dry mass of the soil and its container is 0.29 kg. The mass of the container is 0.06 kg and its volume is 0.15 x 10-3 m3. Determine the following.
(a) The bulk, dry, and saturated unit weights of the soil.
(b) The void ratio and the degree of saturation.
(c) How much air void is in the soil?
(d) The weight of water required to saturate 1m3 of this soil.
an empty parallel plate capacitor is connected between the terminals of a 3.1-v battery and charged up. the capacitor
In a heating/humidifying system moist air first flows through a heating coil and then through an air washer. The air enters the system at 55 °F dry-bulb temperature and 40 % relative humidity. The air exits the system at 90 °F dry-bulb temperature an..
An engineer proposes to insert a solid rod of diameter Di into a circular tube of diameter Do to enhance heat transfer from the flowing fluid of temperature Tm to the outer tube wall of temperature Ts,o. Assuming laminar flow, calculate the ratio of..
Using the data shown in Callister Figure 7.19, draw an approximate stress-strain curve for the 1040 steel at 0% cold work and at 30% cold work, clearly indicating the yield strength, ductility, and tensile strength of the steel before and after cold-..
A smooth steel (SG= 7.86) sphere is immersed in a stream of ethanol at 20°C moving at 1.5 m/s. Estimate its drag in N from Fig. 5.3a. What stre quadruple its drag? Take D 2.5 cm.
What is the prudent economic decision - "sell or hold" - how many months from now, the beginning of these exercise?
the vertical motion of mass a is defined by the relation x10sin2t15cos2t100. determine a the position velocity and
A rocket nozzle has a chamber pressure of 20 Bar (2 MPa) and a chamber temperature of 2750 K. The rocket is designed to operate isentropically at 12,500 m altitude. Note that the pressure at 12,500 m can be estimated using this equation P/P0 = exp [-..
liquid waterh2o at 200 kpa and 20oc is heated in a chmaber by mixing it with a steam h20 at 200 kpa and 150oc. the
Use the gas tables to determine the power required per unit mass flow rate and the exit air temperature.- Determine the final temperature and the minimum possible power required.
Oil at 80°F, density r = 56.8 lbm/ft3 and viscosity m = 0.0278lbm/ft.s is flowing steadily in a 0.5in diameter 120ft long pipe. The pressure at the pipe inlet is 120 psi and at the outlet is 14 psi. Determine the flow rate of oil through the pipe ass..
9.5.3 1kg of a fluid is compressed according to a law pn 0.25 where p is in bar and n is in m3kg. the final volume is
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