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1. A stream with a temperature of 25°C has a dissolved-oxygen concentration of 4 mg/L. What is the dissolved-oxygen deficit (mg/L)?
2. The oxygen concentration of a stream is 4 mg/L. Saturation for the stream is 10 mg/L. What is the oxygen deficit?
A tared filter weighs 10.2788 grams. After filtering 100 ml of a water sample, the filter is dried at 103C and reweighed. If the concentration of suspended solids in thefiltered water sample was 125 mg/L, determine the final dried filter weight.
With this information, Justin calculated the total standard time required to be within the 320 hours available. Is he correct? Calculate the time required and check the accuracy of his calculation.
If the aluminum wing has an I of 745 in^4 and aluminum has an E of 10.1 *10^6 psi, how much would the end of the wing deflect relative to the fuselage of the aircraft compared to the position it has when aircraft is on the ground.
Drivers must slow down from 65 miles per hour to 55 miles per hour to negotiate a severe curve on a rural highway. A warning sign for the curve is clearly visible for a distance of 110 feet.
A pump conveys water from an open pond through a short length of pipe to a nozzle that shoots water into the air in the middle of a fountain. The pump adds 5 H.P. to the flow. What vertical force (direction and magnitude) does the water exert onto..
a car is traveling at sea level at 78 mi/h on a 4% upgrade before the driver sees a fallen tree in the roadway 150 feet away. the coefficient of road adhesion is 0.8. The car weighs 2700 lbs, has a drag coefficiant of 0.35, a frontal area of 18 ft..
the present worth of an increasing geometric gradient is $23,632. The interest rate is 10% per year, and the rate of change is 4% per year. If the cash flow amount in year 1 is $3000
Structure O A B C is built in at point O and supports forces from two cables. Cable E A D passes through a frictionless ring at point A, and cable O C G passes through a frictionless ring at point C. If the force in cable E A D is 800 lb and the forc..
The water exiting a 2.5 cm diameter nozzle which is atrtached to a 7.6 cm diameter fire hose is discharged at a velocity of 25 m/s. the pressure in the hose is 380 kpa. what is the magnitude and direction of the force of the water n the nozzle, if th..
Find the equation of the Elastic Curve by successive integration - Find the slope and downward deflection of the free end B and determine the maximum shearing and bending stress for the beam.
The velocity distribution for the flow of oil (SAE 20W) at 150 degrees between two plates is given by y(y-4) mm/s, where y is measured in mm and the space between the plates is 4mm. Determine the shear stress at each wall and the maximum shear str..
The window is to be bolted onto the vertical wall of the pool and faces outward, covering a 2ft diameter opening in the wall. The venter of the opening is 4ft below the surface.
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