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Compute the stresses and deflections at the corner of the slab according to Westergaard and Ioannides. Compute the stresses and deflections at the edge and interior according to Westergaard. For the edge condition, compute the stresses when the entire wheel is on the slab, as well as when half of the wheel is on the slab. Develop a table of the stresses and deflections according to each method and comment on the table in one paragraph (which is largest, smallest, etc. and why). In your answer be sure to comment on the interaction of stiffness, stress, and deflection in terms of the three locations.
– 10,000 lb total load
– 4 million psi modulus
– Poisson Ratio 0.15
– Modulus of subgrade reaction 100 pci
– Slab thickness 10 in
– Radius of loaded area 6 in
A carpenter uses a hammer to strike a nail. Approximate the hammer's weight of 1.8lbs, as being concentrated at the head, and assume that at impact the head is traveling in the -j direction.
1.Remain at the previously indicated rate of climb 2.Fall to zero rate of climb indication 3.Indicate a maximum rate of climb 4.Indicate a maximum rate of descent
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The probability is 1% that an electrical connector that is kept dry fails during the warranty period of a portable computer. If the connector is ever wet, the probability of a failure during the warranty period is 5%.
A vertical curve is designed for 55 mi/h and has aninitial grade of +2.5% and a final grade of 1.0%. The PVT is at station 114 + 50. It is known that a point onthe curve at station 112 + 35 is at elevation 245 ft.
You wish to retire at age 66 and at the end of each month thereafter for 30 years, to receive $5000. Assume that you begin making monthly payments into an account at age 24.
A pool player wants to bank ball B off of point A into the side pocket O. The ball has a diameter d = 2.25 in. and a coefficient of restitution e = 0.8 when colliding with the side of the table.
Consider a house that is heated and maintained at 20oC by a heat pump during the winter. What is the maximum COP for this pump if heat is extracted from the outdoor air at (a) 10oC, (b) -5oC, and (c) -30oC
A firm's stockholders expect a 15% rate of return, and there is a $12M in common stock and retained earnings. The firm has $5M in loans at an average rate of 7%. The firm has raised $8M by selling bonds at an average rate of 6%
As part of the procurement or contracting department of this federal agency, you need to demonstrate your understanding of the different project delivery methods and contract types available to the agency.
A second load P2 is uniformly distributed around the cap plate at B. The diameters and thicknesses of the upper and lower parts of the post are dAB= 1.25 in, tAB= 0.5 in, dBC= 2.25 in and tBC= .375 in respectively.
A pig farmer owns a 20-arce farm and started business with 22.1 pigs. After one year, he has 319 pigs. Assuming a constant growth rate, what is the doubling time in units of days.
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