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A cylindrical pressure vessel with end caps has a mean diameter of 800 mm and a wall thickness of 20 mm. In addition to being subjected to an internal pressure of 2 MPa, a disruption in its supports leads the vessel also to be twisted with a twisting moment of 3 (105) N-m. Determine the stresses on the outer surface of the vessel and draw the Mohr's circle for that stress state.
The uniform bar has a mass m and length l. if it is released from rest when theta = 0 degrees, deterine its angular velocity as a function of the angle theta before it slips
Three completely mixed stabilization ponds are connected in series, and the system removes 99.998% from the total coliform count of the influent to the first pond. In stabilization ponds, coliform bacteria are removed by a first-order process
Three loads are applied to a beam. the beam is supported by a roller at A and by a pin at B. neglecting the weight of the beam, determine the reaction at A and B when P=15kips.
A short hollow cast iron cylinder with a wall of thickness of 1 inch. is to carry a compressive load p=150 kips. compute the required outside diameter if the working stress in compression is 12,000 psi
Assume that the sludge does not change density during filtration and that liquid removed from the sludge contains no sludge. Using mass-balance method. determine the volume of sludge after filtration.
if a residential space heater burns anthricite coal having a sulfur of 2.85% what would be the emissions of sulfur dioxide from having burned 900 ib of this coal. use ap-42 table 1.2-1 sulfur dioxide emission=[SO2] pounds.
For maximum undercooling, calculate the size of the critical radius and the number of atoms in the critical nucleus when solid copper forms by nucleation.
The moist unit weight of a soil is 119.5 pcf. For a moisture content of 12% and Gs=2.65, calculate the following;
You have been asked to estimate the optimal size of a small reservoir that is being constructed near Atlanta. Knowing that water is a scarce commodity, you have decided to adopt an "economists" perspective on this problem
A 55 KG bungee jumper leaps from a bridge. She is tied to a bungee cord that is 12 m long when unstretched, and falls a total of 31 m. Calculate the spring constant of the bungee cord assuming Hooke's law applies.
Write a letter replying to the Extract of the letter of 14 March 2015 and in the report discuss the contractual reasoning behind your responses under JCT Standard Building Contract.
The bar is released from a position which gives it an angular velocity ω = 2 red/s as it passes the position θ = 45° Calculate the forces FA and FB exerted by the guide on the rollers for this instant.
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