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The coal may either be moved by train from the mine to power plants near where the power is used, or the coal could be combusted near the mine mouth to generate electricity and the electricity could
A manometer connects a large water tank open to the atmosphere to a closed spherical tank of air. The manometer contains both oil and water. Find the gage pressure in the tank "A".
Suppose a drainage basin has an area of 288 acres with a CN=55(Runoff Coef. of 0.30). Determine the peak discharge (in cfs) that would result from a 6.0in., 24-hr assuming there are no ponds and swa
Determine the horizontal and vertical components of reaction at the pin supports at A and B and indicate direction. Take F1 = 7 KN, F2 = 6 KN, and h = 1 m.
A block of material A is placed in closed contact with unlimited supply of material B, after 15 hours at temperature T1, it is observed that atoms of B have penetrated 0.5mm into material A.
Determine the forces in members DC,CB and BA of the truss. State whether the members are in tension or compression. set P=7 kN. Determine the forces in members DE and EA of the truss.
A municipality uses green energy and treats 15 × 106 gal/day of a groundwater containing the following: CO2 = 17.6 mg/L, Ca2+ = 80 mg/L, Mg2+ = 48.8 mg/L, Na+ = 23 mg/L, Alk(HCO3-) = 270 mg/L
Air enters an electrical furnace at 20oC, 100 kPa, with a volumetric flow rate of 30 m3/min. The furnace delivers air at 40oC to a duct system with three branches consisting of two 15-cm-diameter du
draw shear and bending moment diagrams determine the maximum stress on the beam (E=2.0E+11Pa) a simply supported beam AB is 5 m long carrying a uniform distributed load of 10kn/m over a 4m span
A constant head permability test is performed on a soil that is 2 cm X 2 cm square and 2.5 cm long. The head difference applied during the test is 18 cm, and 5 cm^3 is collected over a time of 100 s
The design parameters are: • Q = 65 m3/d, • Wetland area (A) = 0.23 hectares (2,300 m2) (including the safety factor), • Aspect ratio = 8:1 • Average water depth (d) = 0.5 m &bul
determine the maximum wind load that the cavity wall , bothe wythes are fully grouted but unreinforced ,and type S mortar portland cement is used . prism strength is equal to 2666psi for the concret
A two stage crushing operation feeds 0.6 m diameter ore into a primary crusher at a rate of 25mt/hr. 80% of the ore feeds through an 0.2m screen into a secondary crusher. 65% of the ore from the sec
A magnetic separator processes 500 kg/hr of finely ground magnetite ore (Fe3O4). The ore containes 35% magnetite and an analysis of the concentrate and tailings shows that they contain 59.5% Fe and
Determine if a simple supported W 12x26 (A36 steel) beam has the capacity to support loads that produce 50 kips of live-load shear and 20 kips of dead-load shera.
Assume the collector provides this energy to a thermal storage unit (a thermal reservoir) at 220oC. A heat engine receives energy from this thermal storage unit and discharges energy by heat transfe
A 1.00 mol sample of an ideal gas (gamma = 1.40) is carried through the Carnot cycle. At point A, the pressure is 25.0 atm and the temperature is 600 K. At point C, the pressure is 1.00 atm and the
The gasoline at point C and time t has an acceleration given by a=(-12i+40k) ft/s^2 where i and k are the horizontal and vertical unit vectors. Find the rate of increase of the piezometric head and
Assume: Suspended solids in effluent negligible Wastage is from aeration tank Yield coefficient = 0.4 Bacterial decay rate = 0.04 1/d Effluent BOD5 = 10mg/L F/M = 0.33 mg/mg*d BOD5 after primary set
A scale for rapidly weighing ingredients in a commercial bakery operation is shown. An empty bowl is first placed on the scale. Electrical contact is made at point A, which illuminates a light indi
A family of six in a five bedroom house would like to treat their wastewater in an onsite septic system, constructed wetland, and tile drainage (leach field) system. They will be generating a maximu
A wheel has an initial clockwise angular velocity of 12 rad/s and a constant angular acceleration of 3 rad/s2. A) Determine the number of revolutions it must undergo to acquire a clockwise angular v
The 15-Mg tank car A and 25-Mg freight car B travel towards each other with the velocities. If the coefficient of restitution between the bumpers is e=0.6, determine the speed of each car just after
Determine the Stoichiometric oxygen requirement (pounds of oxygen per pound of fuel) for a fuel containing by weight 50% n-octane,25% 1-heptene and 25% methanol.
A stack gas at 1.1 atmospheric pressure has a mixture below. what will be the change in partial pressure of carbon dioxide if the gas temperature is lowered from 2000 degrees K to 1000 degrees K