Calculate the size of a surface crack that will lead
A high strength steel has a yield strength of 1460 MPa and a KIC= 98 MPa m1/2. Calculate the size of a surface crack that will lead to catastrophic failure at an applied stress of half of yield strength.
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Carbon monoxide in a piston-cylinder device is compressed from 1 bar and 37?C to 3 bar and 147?C. The compression process requires work input of 88 kJ/kg.
A power cycle operates between hot and cold reservoirs at 500K and 310K, respectively. At steady state the cycle develops a power outpoint of 0.1 MW.
Calculate the steady rate of entropy production, s& (kJ/K/s), by the power unit & by the refrigeration unit. Entropy production is not a good thing. Find the amount of unnecessary or lost power = TATM * s& (kW).
A cylinder/piston contains carbon dioxide at 1 MPa, 300oC with a volume of 200 L. The total external force acting on the piston is proportional to V3. The system is allowed to cool to room temperature, 20oC. What is the total entropy generation fo
A flange is used for instrument connection for a system with a design temperature of 316°C (600°F) and a design pressure of 1000 kPa (145 psi).
Water at 20 degrees celcius flows by gravity through a smooth pipe from one reservoir to a lower one. The elevation difference is 60m. The pipe is 360 m long, with a diameter of 12cm. Calculate the expected flow rate in m^3/h. Neglect minor losses
You have been asked to design a set of pumps to transfer liquid from a storage tank into a distillation column. What design issues do you have to consider ?
A 19th-century piston engine ran on steam. The steam supply is at 5 bar and 350oC. The steam discharges to the atmosphere at 1 bar and saturation temperature.
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Discuss the challenges the topic faces and potential opportunities for growth or improvement.
Why did the United States invade Afghanistan in 2001? The Taliban viewed Western culture as too far from the strict Sharia laws it favored.
Provide an outline, abstract and introduction Discuss the group's development and evolution; Explore its power structure and group dynamics;
According to the Scott Galloway podcast (Prof. "G"), the idea of abundance mindset is most closely aligned with the conservative agenda
Problem: Bureaucratic structure emphasizes the following, except
Question: Which of the following is NOT included in Max Weber's theory of the ideal type bureaucracy?
Whistleblowing is the primary tool through which Congress maintains over- sight over public administration