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A furnace wall slab is constructed with fire clay of thickness 90 mm (L1) inside and red brick of thickness 450 mm (L2) outside. The temperatures inside and outside the furnace wall are 1100°C (T1) and 30°C (T3), respectively. The thermal conductivity of the red brick (K2) is 0.8W/m K and that of the fire clay (K1), is 0.3(1 + 0.001T) W/m K where T is the temperature of the clay in degrees Celsius. Assuming unit surface area, find the conductive heat loss through the furnace wall and the temperature at the interface of the fire clay and red brick.
Wastewater is discharged into an aquifer. This wastewater contains 0.1 ppm atrazine (a common herbicide). The MCL of atrazine is 5 ppb, the density is 1.19 g/mL and the solubility is 50 ppm. 500 ft away from the plant effluent there is a permeable..
Determine the required height h of the roller coaster so that when it is essentially at rest at the crest of the hill it will reach a speed v= 100km/hr when it comes to the bottom.
Air can be assumed as a di-atomic ideal gas. Find the final temperature and the amount of work ( in kW) required for air compression at a rate of 100 mol/s , from an initial condition of 1 bar an 25 C to 10 bar; for the following ways:
A bullet is fired from a height of 150m at a velocity of 300kmph at an angle of 35 upward. Neglecting air resistance. Find: a) total time of flight b) horizontal range
Ernst & young is currently providing support to various sectors. In this regards it was felt that if this report is able to document good practices currently being adopted or planned in ceramic sector.
To satisfy desige limitation it is necessary to determine the effect of the 2- kN tension in the cable on the shear tension and bending of the fixed I-beam.
How much money should an environmental soil cleaning company borrow to finance a site reclamation project if it expects revenue of $140,000 in the first year increasing by 3% per year over the 5-year cleanup period? The interest rate is 8%.
Use modern software tools to analyze a structural system of a building.
Should Bernard bid for the project assignment? Why or why not? Does Bernard have an unfair advantage over firms having designed the project on which he wants to bid?
A particle with a mass of 0.5 kg has a velocity of 10 m/s in the x-direction at time t = 0. Forces F1 and F2 act on the particle, and their magnitudes change with time according to the graphical force-time history shown.
The velocity along a pathline is given by V (m/s) = s^2 x t^(1/2) where s is in meters and t is in seconds. The radius of curvature is 0.5 m. Evaluate the acceleration along and normal to the path at s = 2m and t = 0.5 seconds.
How many gallons of mercury (sg=13.54) would weight the same as 5 gallons of castor oil which has a specific weight of 56.69 pcf?
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