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1the treated effluent from a domestic wastewater treatment plant contains ammonia at 9 mgn-l-1 and nitrite at 05mg
1using the dehoff method compute the change in internal energy when 12 liters of argon gas at 273 k and 1 atm is
a rectangular channel carries a discharge of 200 m3sec per meter of channel width over a weir crest that is 14 m in
two level sections of an east-west highway g 0 are to be connected currently the two sections of highway are separated
an overnight shipment contains 2 bottles of aspirin and 3 bottles of thyroid tablets a second shipment contains 3
as a result of a promotion you are transfered from your present location you must transport a fish tank in the back of
a storm sewer is carrying snow melt containing 1200 mgl of nacl into a small stream the stream has a naturally
there are three reactors degrading a chemical biologically at three degradation rates ie 02 d-1 04 d-1 and 10 d-1 the
1write down a mass balance expression for a chemical release in a lake given the following the lake is completely mixed
the storativity of the jordan aquifer a regional confined aquifer is 5 x 10-4 and the porosity is 03 the thickness of
a canal was constructed running parallel to a river 1500 ft away both fully penetrate a sand aquifer with a hydraulic
to avoid the salinization of soil in a farming area parallel drainage canals are to be installed to maintain the water
the composite shown is to be twisted by applying a torque t at end a knowing that the modulus of rigidity is 77 gpa for
1the water content in one of five standard proctor test samples is 152 the corresponding degree of of saturation is 85
the daily concentration in the air for a given city is normally distributed with a mean of 003ppm and cov of 40 assume
in a random pattern of eight bits used to test a micro-circuit each bit is equally likely to be 0 or 1 assume the
the fill volume of cans filled by a certain machine is normally distributed with mean 1205oz and standard deviation
an uneven or abnormal symmetry observed following the stakeout of a horizontal curve is usually an indication of aa
the phone lines to an airline reservation system are occupied 40 of the time assume that the events that the lines are
1for a three span continuous beam three 20 spans subjected to some uniform load what is cb for each span assumed the
determine the mean effective pressure of an ideal otto cycle that uses air as the working fluid at the beginning of
a normally consolidated clay soil has angle of friction 20 degrees and effective stress angle of friction 28 degrees
an airport has two runways one is north-south n-s and the other is east-west e-w because of the prevailing winds the
1given a type of material used in a wire with diameter d 025 in that stretches 23 inches while 80 feet of length is