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1.If the half-life of a chemical compound is 30 days under anerobic conditions, determine the first-order removal-rate constant, k
2.A simply supported beam with a pin support at A and a roller support at B with length L=20 ft has a force P=10 kips applied at x=15 ft from point A. What are the reactions at A?
3.Determine the number of additional deaths per year occurring in apopulation of 300 million people from motor-vehicle accidents.Assume the annual risk of dying in a motor vehicle is 2.4 x10-4. Calculate the number of deaths over an averagelifetime of 70 years
4.Suppose drinking water contains 5 mg/L of phenol, 0.5 mg/L of xylene, and 0.35 mg/L acetone. If a 70-kg adult drinks 2 liters per day of this water for 20 years, calculate the hazard index and discuss whether this is a safe level of exposure.
Two parcels of air are mixed. The given properties of the two parcels and the final mixed parcel are as follows: parcel (1): volume = 1 Liter, Temperature = 10 Celsius, pressure = 1 atm, relative humidity = 50%, parcel (2): volume 1 Liter, Tempera..
Mike and Susan hope to retire a few years early, they decided to pay closer attention to the predicted amount of retirement benefits and do some analyses on the numbers.
Explain the process for establishing a centerline for a roadway for an existing road. Include a description of the types of property markers used as well as any problems a surveyor may encounter in this process in your explanation.
a 2.50-g sample of a large biomolecule was dissolved in 25.0 g of carbon tetrachloride. the boiling point of this
What are the different dimensionless groups that describe a golf ball. A golf ball has two velocities, a spin velocity and a forward velocity.
Three cylinders from the same mix were tested for strenght. Cylinders A and B were cast in 4x8 molds while cylinder C was cast in a 6x12 mold. The total loads were as follows; cylinder A= 65,200 lbs., cylinder B= 68,550 lbs., cylinder C= 151,190 l..
what is the maximum weight of the crate that the system can support? What is the angle theta required for equilibrium?
At the inlet the steam is at 1 MPa and 320 C, and leaves the turbine at 20 kPa. The work output of the turbine is measured to be 600 kJ/kg (of steam passing through the turbine).
a 2000-mw electric generating station burns 278 tonnes of residual fuel oil per hour. the fuel contains 2.6 s and 1.2
Determine the specifications (unstretched length and springconstant k) for the elastic cord to be used at a bungee-jumping facility. Participants are to jump from a platform 150 ft above the ground.
A 3105 Aluminum alloy wire is to be drawn to give a 1-mm diameter wire having a yield strength of 20,000 PSI. assume that there is no friction in the wire drawing process
In the construction management, there is a lot of procurement route that are necessary and suitable for the construction industry.
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