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1.When measuring a distance AB, the first taping pin was placed 1.5ft to the right of line AB and the second pin was set 1.5 ft leftof line AB. The recorded distance was 236.89 ft. ( Assume 3 tapedsegements, the first two 100 ft each.) Calculate the corrected distance.
2.A lake with a constant volume 10.0 x 106 m3 is fed by a pollution-free stream with a flow rate 50.0 m3/s. A factory dumps 5.0 m3/s of a nonconservative waste with concentration 100 mg/l into the lake. The pollution has a reaction rate coefficient K of 0.25/day. Assume the pollutant is well mixed in the lake. Find the steady-state concentration in the lake.
A classic car is d riving down an incline at 60 km / h when its brakes are applied. Treating the car as a particle, neglecting all forces except gravity and friction, and assuming that the tires slip
The following boundary conditions apply at x=0, ca = Keqcao and T=To and at x=L, (dco/dx)=0 and (dT/dx)=0. Determine the concentration and temperature profiles for this system.
Suppose that the distance from the lake outlet to the withdrawal cannot be more than 20 mi. What should be the new volume of the lake?
Past experience indicates that the time for high school seniors to complete a standardized test is normal random variable with a mean of 35 minutes.
the cash flow sequence $70+4k, where k is in years and cash flow is in $1000. What is the future work of the entire cash flow series in year 10 at 10% per year
During frequent braking under race conditions the disk brake rotors on the car described above reach a temperature of 500C. These disk brakes rely on forced convection to cool them. The dimensions of each disk rotor are: outer radius 130mm
A rectangular channel carries a flow of 10 cfs/ft of width. Plot a curve of specific energy vs depth. Compute the minimum value of specific energy and the critical depth. What are the alternative depths for Es = 5.0
A Rankine cycle has a boiler pressure of 2500 psi and a condenser pressure of 1psi. The temperature at the inlet of the turbine is 800F. The turbine has an isentropic efficiency of 90 percent and the pump operates isentropically.
Determine the slenderness ratio of a 5 m column with built in ends if its cross- section is (a) circular with a radius of 40mm and (b) 50 mm square. Use the concept of effective length.
1 an equal-tangent crest vertical curve is designed with a pvi at station 11000 and a pvc at station 10743.3. if the
Analyze the stability of the dam shown in the figure, if the friction coefficient between concrete and foundation is 0.70, and the specific weights of concrete and water are 24kN/m 3 and 10kN/m 3 , respectively.
Use the Muskingum method to route a flood through a reach a river. The base flow is 100 cfs, and the incoming flood flow increases 50 cfs every 2 hr over a 6 hr period and the subsides at the same rate.
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