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River A has a flow rate of 3.0 m^3/sec. Stream B discharges into the river at a flow rate of 0.05 m^3/sec. to study mixing of the stream and river, a conservative tracer is to be added to stream B. the instruments that measure the tracer can detect a concentration of 1.0 mg/L. what minimum tracer concentration (mg/L) must be achieved in Stream B so that 1.0 mg/L of the tracer can be measured after the river and stream mix? what mass rate of tracer (kg/day) must be added to Stream B to achieve this concentration
Assuming unit surface area, find the conductive heat loss through the furnace wall and the temperature at the interface of the fire clay and red brick.
You are the Chief Civil Engineer for the Enhanced Protein Production Plant on the planet Zog where the gravitational constant is 15 ft/s2. A protein storage tank has developed a structural problem and must be drained.
Set up life cycle diagram for both alternatives and calculate net present value (NPT) and annual cost for the life time.
A rectangular concrete channel is 3 m wide and 2 m high. The water 20 deg Celsius in the main channel is 1.5 m deep and is flowing at a rate of 30 m^3/s. determine the flow area, wetted perimeter, and hydraulic radius. Is the flow laminar or turbu..
The water table is lowered from a depth of 10' to a depth of 20' in a deposit of silt. All the silt is saturated, even after the water table is lowered. The silt's water content is 26%. Find the increase in effective vertical stress at a depth of 34'..
If the weight flowrate into the elbow is 47 lbf/s, find the mass flowrate out of the elbow, the volume flowrate in and out of the elbow, and the average velocity in and out of the elbow.
A four-lane freeway (two lanes in each direction) is on mountainous terrain with 11ft lanes, a 5ft right-side shoulder, interchange spacing of one every 10 miles, and a 60mph base free-flow speed.
A pump of 80% efficiency lifts water from one large open tank to another; the difference in water surface elevations is 20 feet. The pipe is relatively smooth (f = 0.0122), and has 3 elbows, each with a loss coefficient of 2/3.
A bar of monel metal (length L=9 in., diameter d=0.225 in.) is loaded axially by a tensile force P. If the bar elongates by 0.0195 in., what is the decrease in diameter d What is the magnitude of the load P
Two identical alloy specimens are being evaluated for use in a new fuel rod design. One sample was exposed to a fast neutron flux of 9 X 10^23 neutrons/(cm2*sec) at a temperature of 323°K for six weeks in a test reactor.
Determine the moments of inertia Ix, and Iy of the parabolic area with respect to the x and y axes. shaded area is in the first quadrent with length a and height b.
The chief engineer of an airport is planning to rehabilitate runway pavements over the next several months. You ask him what impact this would have on delays and queues, but he does not know
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