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During an experiment, the depth of a water flow in a flume is measured five times by using a ruler with 1/16-in division. The results from these measurements are 4.88 in, 5.06 in, 5.03 in, 5.13 in, 4.94 in. What is the instrumental error and what is the statistical error?
A sample with a measured background level (Bi) of 22 mg/l was spiked with the equivalent of 30 mg/l without appreciably changing the sample volume. The result for the spiked sample (Ai) was 49.2 mg/l. Calculate Pi and determine if it falls with th..
If the elevation difference between the water surfaces is y = 25 + x/11 metres, what minimum pipeline diameter will be required to convey the design discharge? Once your design is complete, determine the actual discharge. The value of x equals 23.
assuming that the velocity variation within the main channel and the floodplain subsections is much smaller than the change in mean velocities between subsections, find the value of the kinetic energy correction coefficient.
Would a 30 slot stainless steel screen (2.0 m long; located at the bottom of the well) have sufficient collapse strength for this application?
What are the effects of water pollution on the components of the hydrologic cycle?
If the difference in weight between the two baskets must greater than 15 lb they will not have the strength to operate the pulley. The King weighs 195 lb, the princess weighs 105 lb, and the prince weighs 90 lb.
If the evaporation rate from an open water surface is 0.27 inch/day in Tucson Arizona, what should be the surface area of the lagoon? (Note: arsenic does not evaporate but remains in the liquid water)
A direct shear test is performed on a saturated specimen of loose sand. A normal stress equal to 100 kPa is applied and a maximum shear stress of 75 kPa is measured in the shear test. Determine the principal stresses and the orientation of these p..
For some minerals color is a diagnostic property making identification rather easy. However, certain minerals can also occur in a wide variety of colors making color a poor tool for identification. List different colors for the mineral quartz lo..
A water line to a home is usually 3⁄4" copper tube. What is the flow rate that can be delivered and still maintain laminar flow in the tube?
Design a three story office building
An empty air tank has a volume of 0.024 m3. The compressor on the tank is run until the pressure gauge reads about 65 psi (or 22,500 Pa). Assuming the temperature of the tank is 25 C, find the density of the air and the weight of the air in the ta..
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