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A chair weighing 150 rests on a level floor that is not frictionless. A man pushes on the chair with a force = 43.0 that is directed at an angle of 34.0 with the horizontal. Assume that the chair is
The two shafts are made of A-36 steel. Each has a diameter of 25 mm and they are connected using the gears fixed to their ends. Their other ends are attached to fixed supports at A and B.
What is the pressure drop for water at 60 degrees F flowing through 12in schedule 40 pipe at a rate of 500gal/min over a distance of 100 feet.
Three parallel line loads of 500kN/m are applied at ground level in a straight line 4.0m apart. Determine the increase in vertical stress at 2.0m below ground level beneath the middle load.
during the next month, the amount of water available for a city is lognormally distributed with a mean of 1 million gallons and a c.o.v. of 40%, where as the total demand is expected to follow a log
An overflow spillway 1,600 feet long is designed to pass 120,000 ft3/s of water. A 1:20 scale model of the cross section of the structure is built in the laboratory. It is assumed that the flow is t
A 1:2000 scale tidal model is operated to satisfy Froude's law. A velocity of 0.02 ft/s is observed in the model. What is the velocity at the corresponding point in the prototype
If I have a block that has dimensions 5m*5m*5m and it is anchored in fresh water with a cord, the weight of the block is 2, 000 lbs, and the tension in the cord is 3,000lbs. What is the depth that t
A fluid flows into a plug flow reactor of volume, V, with volumetric flow rate, Q. Inflow contains species A and B and concentrations A0 and B0. Within reactor, species A undergoes first order react
If metal sorption to algae can be modeled by a Langmuir isotherm, determine the mass distribution (sorbed vs dissolved) of lead in the marsh. Langmuir Isotherm Parameters Cs , sat 100 mg/g a 0.1 L/m
Air at the turbine inlet is at 700 kPa and 25 degree C. The turbine discharges air in to the atmosphere at a temperature of 11 degree C. Inlet and outlet air velocities are 100 m/s and 2 m/s respect
The piston rides on a reservoir of oil of depth h1 = 42 mm and specific gravity S = 0.8. The reservoir is connected to a round tube of diameter D2 = 5 mm and oil rises in the tube to height h2. Find
Raw primary sludge at a solids concentration of 3% is mixed with waste activated sludge at a solids concentration of 6,000 ppm. The flows are 20 and 25 gal/min, respectively. What is the resulting s
How many pounds of sulphur would be emitted from coal-fired power plants in the united states in 3 years. (each year. U.S electricity production in about 0.28 x 1012 watts, and coal has an energy
The plant treats 1.8MGD (million gallon per day). The water entering this unit has about 4500mg/L of coliforms, and the effluent target is 0.1 mg/L of coliforms.
What are the bearings of the sides CD,DE,EA, and AB if the side CB has a bearing S 20° 44' 36" W, point A is westerly of B and interior angles in each apex are as follows: A = 95° 14' 23"; E
A dye mill has a highly coloured wastewater with a flow of 32 million L/day. One suggestion has been to use biological measn to treat the watewater and remove the colour, so a pilot study is perform
Sometimes driving your car on a hot day, you may encounter a problem with the fuel pump called pump cavitation. What is happening to the gasoline. How does this affect the operation of the pump.
A pumped storage power plant is to be designed for a flow rate of 6,000 cfs per penstock. The penstocks are 20 ft. in diameter, with a relative roughness of 0.008. The elevation difference between t
For a groundwater hydrology problem, if you have an unconfined aquifer, and someone inserts an impermeable wall into the middle of it (a wall that starts at the bottom and does not stretch the full
Discuss whether shoe A (leather) or shoe B (synthetic) is better for the environment based on the data in the table below. Is it possible to weight one aspect (air, water, land pollution or solid wa
A satellite is launched 600 km from the surface of the earth, with an initial velocity of 8333.3 m./s, acting parallel to the tangent of the surface of the earth.
You are preparing a life-cycle assessment of different transportation options for getting from your house to work (10 miles each way). The options include carpooling with three or more people, one p