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The 1.5m2 pub sign hanging outside The Drunken Engineer, weighs 200N and is hinged along its top edge. Determine the deflection in degrees for horizontal wind speed of 10m/s and what is the magnitude of the force required at the bottom of the sign to prevent the sign from deflecting?
Take the density of air as 1.2 kg/m3. The drag coefficient for the sign can beassumed equal to 1.9 and independent of the Reynolds number.
The fill volume of cans filled by a certain machine is normally distributed with mean 12.05oz and standard deviation 0.03oz. a. What proportion of cans contain less than 12oz b. Of a 100 can sample, what is the probability that at least 97 of the can..
An automobile having a mass of 900 kg initially moves along a level highway at 100 km/hr relative to the highway. It then climbs a hill whose crest is 50m above the level highway and parks at a rest area located there
Soil engineers hypothesize that the share of limestone in Austin's soils is the same as that in San Antonio soils. They take 100 bore holes in each region, with 70 showing limestone in Austin and 60 showing limestone in San Antonio.
Two forces are applied to the vertical post. Determine the force and couple at O equivalent to the two forces.
Calculate the ionic packing factor for fcc NaCl. Take the atomic radii for Na and Cl as 0.097 and 0,181 nm respectively.
A fellow I know wanted to know the coefficient of friction between steel and commercial carpet. The value was not in the tables of any textbook he had, so he devised an experiment.
The piezometers are 280 m apart. The difference in piezometric head bewteen the two is 1.4 m. The aquifer hydraulic conductivity is 50 m/d and the porosity is 20%.
The settling velocity of alum floc is approximately 0.0014 fps in water at 10 degrees celsius. Calculate the equivalent overflow rate in gpd/ft squared. What is the minimum detention time in hours
Because of the insulation between them, the sun heats up the wall panel 120 degrees F but the column to 80 degrees F. Determine the consequent compressive stress in the curtain wall.
The coefficient of friction between the crate and the floor is µs = 0.4 and µk = 0.3. If P is slowly increased until the crate starts to move and then remains constant, determine using energy methods the speed of the crate after moving 2 m.
Given this 10-yr record of annual precipitation in inches (28,21,33,26,29,27,19,28,18,22), plot a rough precipitation frequency curve. Tabulate the data to be plotted and show the method of computation. (note: the frequency in percent of years is ..
Estimate the force on the chimney and the bending moment at the bottom of the chimney. You may assume that the effect of the wind on the first 1 m height of the chimney has a negligible effect on the force and the moment.
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