Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Disk A of constant thicness and is at rest when it is placed in contact with belt BC, which moves with constant velocity v. Denoting by uk the coefficient of kinetic fr4iction between the disk and t
The characteristics of the line are 5,000 ft of steel pipe (e = 0.00015 ft) which has an ellipsoidal cross section (flow area = 4 ft^2; wetted perimeter = 8 ft); three standard elbows (K = 0.9 per e
How many truckloads of trucks hauling an average volume of 6 LCY (4.6 LCM) would be required to haul 1 million CCY (764, 600 CCM) of gravel to a dam site
A bacteria culture grows with constant relative growth rate. After 2 hours there are 600 bacteria and after 8 hours the count is 75000 a.) Find the intitial population.
A 23-lb crate is pushed by a force F, which has the magnitude that varies as shown on the graph. If the crate is originally at rest and it takes 3 seconds after applying the force to hit the bumper
A 5 cm diameter, 6 m high pole is fixed in concrete. The pole supports a circular 4 m diameter sign. Estimate the maximum moment that must be resisted by the concrete for a wind speed of 30 m/s
Assuming that the soil layers continue much beyond 60 feet in a similar pattern (obviously no landfill) in terms of friction and bearing capacities, recommend two different solutions that could allo
You want to make sure that the hill slope -the earth of which has also been excavated by your teams and the organic soil and vegetation removed- will remain stable for the safety of your workers.
A solid shaft with a diameter of .75 in. The subject is torqued at B(35lb*ft clockwise), C(20lb*ft counterclockwise), D(40 lb*ft counter clockwise) and E(25 lb*ft clockwise).
If the stage of a stream increases by 40% and the slope of the water surface becomes half of its original slope, then what will be changes in discharge of the stream
The distance between the poles holding the rope is 90 ft. We are to find the tensions in both sides of the rope for someone walking across the rope and the deflection for every 0.5 ft up to 45 ft.
Stadia is used to estimate the distance from the instrument to a target. Using inclined sights the horizontal distance and vertical distance between the center of the instrument and the target
If sewage (assume the properties are the same as those of water) flows at a depth of 1.5ft in the pipe, what will be the discharge Q = 10.6 cubic feet/second
the cantilevered wild- flange steel beam is subjected to the concentrated force P at its end. Determine the largest magnitude of this force so that the bending stress developed at A does not exceed
If fy = 60,000 psi and fc' = 5000 psi, what is the nominal flexural strength, and what is the maximum moment that can be utilized in design, according to ACI Code
A tensile-reinforced beam has b = 12 in. and d = 20 in. to the center of the bars, which are placed all in one row. If fy = 60,000 psi and fc' = 5000 psi,
Find the concrete cross-section and steel area required for a simply supported rectangular beam with a span of 20 ft that is to carry a computed dead load of 1.3 k/ft and a service live load of 2.25
Five organic compounds (A through E) were tested for suitability for biofiltration control. Their retardation ratios (in order) were 5, 8, 13, 21 and 34.
Use this information to estimate the demensions of the biofilter needed to treat 10,000 m^3/hr of air (at 30 C and 1 atm) containing 200 ppm styrene being emitted from a boat- manufacturing plant.
estimate the velocity with which you would contact the ground if you jumped from an airplane at an altitude of 500ft and a) air resistance is negligible, b) air resistance is important, but you forg
A municipal water plant has four filters that are each 20 ft long by 15 ft wide by 5 ft deep. The demand for water requires that they only operate, on average, three filters per day at a loading of
Determine the torque T, shear force V, and bending moment M for the following gage readings: 450, 325, 550, and 675 all in microns for gages A through D, respectively. Gages A on side, B on top, C o
A fully penetrating well of 30 cm diameter in an unconfined aquifer of saturated thickness 50 m was found to give the following draw down - discharge relationship under equillibium condition.
We are digging a hole to build a building. Calculate the energy needed to bring the soil to surface level. Remember the sides of the excavation lie at 45 degrees. Else, the whole would be constantly
Estimate the diameter of the tower, based on bottom operating conditions. Assume that the density and viscosity of the bottom liquid are the same as tose for pure water. Make other appropriate assum