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A 2500-lb car (CD = 0.35, Af = 25 ft^2, and ? = 0.002378 slugs/ft^3) has 14-inch-radius wheels, a drivetrain efficiency of 90%, an overall gear reduction ratio of 3.2 to 1, and drive axle slippage of 3.5%. The engine develops a maximum torque of 200 ft-lb at 3500 rev/min. What is the maximum grade this vehicle could ascend, on a paved surface, while the engine is developing maximum torque? (Assume that the available tractive effort is the engine-generated tractive effort.)
The industrial discharges to the municipal sewers are 57 m3/day at 1,800 mg/L BOD from a slaughterhouse and 70 m3/day containing 32 kg of BOD from a soup-canning plant.
You may assume that the total pressure at the downstream station is uniform across the tunnel and given by the value at the wall. Neglecting gravitational effects.
Use the ideal gas law to estimate the mass of the air (in KG) contained in the room. State clearly what your approximate temperature , volume are. Molar mass of air is about 29.
Investigate the possibility of environmental problems that faced by the area of disaster.
Suppose that you issued a query against a search engine and the search engine retrieved 125 documents. Suppose that there are total, Define Data mining confusion matrix
Find the time for one complete cycle of this motion if the spring constant is 21 N/m. (Assume that once the pendulum ball hits the spring there is no effect due to the vertical movement of the ball.)
A gas is compressed at a constant pressure of 0.800 atm from 9.00L tp 2.00L. in the process, 400J of energy leave the gas by heat. (a) What is the work done on the gas? (b) What is the change in it internal energy?
At 100 km downwind (y=10m), what is the concentration of NOx in g/m^3. The wind speed at the top of the stack with a height of 100m is 6.5 m/s and an inversion layer of 750m Pressure air = 95kPa
A HEPA (high efficiency particulate air) filter is monitored periodically for replacement. Specifications state that if the pressure drop across the filter exceeds 1 inch of water, the filter should be replaced.
Calculate the work necessary to compress air in an isolated cylinder from a volume of 6 ft^3 to a volume of 1.2 ft^3. The initial pressure and temperature are 30.0 psia and 50 degree F, respectively.
Determine if a simple supported W 12x26 (A36 steel) beam has the capacity to support loads that produce 50 kips of live-load shear and 20 kips of dead-load shera.
A certain fluid at 15 psia is contained in a cylinder behind a frictionless piston. The initial volume of the fluid is 300 in^3. The fluid expands to a volume of 450 in^3 while the pressure increases to 25 psia.
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