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A full-page open letter with more than 700 signatures was recently released in a university campus newspaper. The letter according to www.texasenvironment.org protested the sale of the single-use, disposable plastic water bottles "shaped" like a university "symbol." The bottles are marketed to students and in local grocery stores and according to the article this does not align with the school's own sustainability program. The article reveals that with a global movement to ban plastic water bottles from college campuses, the university's decision has left students at the back of the environmental movement. What are the advantages and disadvantages of plastic bottles? What steps or procedures could be taken to minimize environmental impact of "single" use bottles? How would an engineer deal differently than a businessperson with the sale of disposable plastic water bottles?
Resolve the problem below with the vertical edges constrained from displacing in x direction, but free to displace vertically. Determine the vertical displacement of the top edge and the stresses required to prevent the vertical edges from displacing..
Analyse the maximum load and deflection for the concrete beam - compare the result with simple beam theory and pick a topic related to one aspect of Indigenous Australian culture.
the acceleration a of a slider block and its displacement s are related by the expression a k s where k is a
On the same stress-strain curve, using a dashed line, please construct the stress strain curve for the AA 2024 material that had been subjected to the 50% cold work. Explain the following: Why did you estimate the modulus to be as you drew it
At the far end of the discharge pipe there is another 90° elbow, which joins the horizontal pipe to 42 ft of vertical pipe.
Water flows through the screen in the pipe shown in Fig. P8.61 as indicated. Determine the loss coefficient for the screen.
Compare the time and cost of using the following three alternative methods for casting the concrete for the wall: 1) direct chute 2) pumped 3) crane and bucket.
If a slider block C is fixed to the disk that has a constant counter clockwise angular velocity of 4 rad/sec, determine the angular velocity and angular acceleration of the slotted arm AB at the instant shown.
A roller cam is used to impart a periodic motion to the base of the spring-mass system shown in Fig. 4.41. If the coefficient of friction between the mass and the surface is µ find the response of the system using the principle of superposition. D..
Draw FBD of the member and find the value of the force F
Calculate the heat flux in the radial direction at any time and calculate the heat flow per length at r=r0 at a time 0f 0.05 s.
Water flows in a 0.15-m-diameter vertical pipe at a rate of 0.65 m3/s and a pressure of 530 kPa at an elevation of 25 m. Determine (a) velocity head at elevation of 20 m, (b) pressure head at elevation of 20 m, (c) velocity head at elevation of 55 m,..
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