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A series of 14-ft-long Douglas fir (S4S) joists carry a floor live load of 40 psf and a superimposed dead load of 20 psf. In addition, there is a concentrated load from a partition running perpendicular to the joists 5 ft from one end.
The partition load is 250 lb/ft. The joists are spaced 16 in. on center. Select the required size for the joists.
an ideal gas of mass 2 kg is contained within a rigid cylinder and undergoes a cycle which consists of three separate
Briefly explain the following concepts related to exposure thresholds: time-weighted average, short-term exposure limit, exposure ceiling, and biological exposure indices.
a can of soft drink at room temperature is put into the refrigerator so that it will cool. would you model the can of
A uniform slender bar AB of mass m is suspended as shown from a uniform disk of the same mass m. Determine the accelerations of points A and B immediately after a horizontal force P has been applied atB.
an air standard diesel cycle has a compression ratio of 18.2. air is at 80degreef and 14.7psi at the beginning of the
calculate the force necessary to accelerate a 20 kg 400mm diameter sphere which is at rest under water at the rate of 5
air in a piston cylinder assembly undergoes a thermodynamic cycle consisting of three internally reversible processes
At a certain position in a piping system, a fluid with a specific gravity of 1.50 passes through an 8-cm diameter pipe with a velocity of 1.2 m/s. At some point downstream the elevation of the pipe has increased by 15 m and the pipe size has been red..
Calculate the strains in these directions, the changes in dimensions, (c) the volumetric strain and (d) the change in volume. Take E = 150 GPa and v = 0.3.
The following stress state exists around a wellbore drilled in the Atlantic Ocean: sigma x = sigma y = 80 bar sigma zz = 100 bar tau xy = tau xz = tau yz = 0 Pw = 80 bar. Derive the general Kirsch equation (Aaddnoy version)
How many cycles of EM waves occur during the above passage, using 1.50 x 10 to the 23rd power Hz.
What is the approximate height of the water tank needed to cool the spheres from an initial temperature of 360 K to a center temperature of 320 K?
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