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A bearing of simple geometry is to be pressed out of bronze powders, using a compacting pressure of 207 MPa. The outside diameter = 44 mm, the inside diameter = 22 mm, and the length of the bearing = 25 mm. What is the required press tonnage to perform this operation?
Given below are the measured stream flows in cfs from a storm of 6-hour duration on a stream having a drainage area of 185 mi^2. Derive the unit hydrogaph by the inverse procedure. Assume a constant base flow of 550cfs.
You have been asked by your managing director to put forward to present at a young professionals conference organised by the CIOB. You have to submit the following essay to the organisers for final selection.
Obstruction due to underground electric lines requires that the x coordinate location of point C must be three feet as shown in the figure, as opposed to 1.5 ft for point B. Determine the magnitude of the resultant of the two forces
An open-circuit wind tunnel draws in sea-level standard air and accelerates it through a contraction into a 1 m-by-1 m test section.
A developer wants to provide access to a new building from a driveway placed 1000 ft upstream of a busy intersection. He is concerned that queues developing during the red phase of the signal at the intersection will block access. If the speed on t..
A point charge of -2.00μC is locatedin the center of a spherical cavity of radius 6.51cm inside aninsulating spherical charged solid. The charge density in the solid7.34*10^-4 C/m^3.
The compound bar carries the axial forces P and 2P. Find the maximum allowable value of P if the working stresses are 40 ksi for steel and 20 ksi for aluminum, and the total elongation of the bar is not to exceed 0.2 in.
compute the allowable load on a column with fixed ends if it is 5.45 meters long and made from an S150 x 18.6(S6 x 12.5) beam. The material is ASTM A36 steel. Use the AISC formula.
(a) Compare the crystalline state in metals and polymers. (b) Compare the noncrystalline state as it applies to polymers and ceramic glasses
An open vat in a food processing plant contains 400L of water at 20 degrees C and atmospheric pressure. If the water is heated to 80 degrees C, what will be the percentage change in its volume? If the vat has a diameter of 3m
Determine the normal stress and shear stress acting on the inclined plane AB . Solve the problem using the method of equilibrium described in Sec. 9.1 .
Calculate the number-average molecular weight of a random nitrile rubber [poly(acrylonitrile- butadiene) copolymer] in which the fraction of butadiene repeat unit is 0.30
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