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1.A spherical container with a diameter of 50 ft made of steel plate holding a gas at 50 psi. with a tensile strength of 16000. What is the required thickness of the plate?
2.Determine the payback period for an asset that has a first cost of $40,000, a salvage value of $8000 anytime within 10 years of its purchase, and generates income of $6000 per year. The required return is 10% per year.
3.Find the present worth of a series of investments that starts at $1000 in year 1 and increases by 12% per year for 20 years. Assume the interest rate is 12% per year.
4.A construction company invested $60,000 in a new bulldozer. If the income from temporary leasing of the bulldozer is expected to be $15,000 per year, the length of time required to recover the investment at an interest rate of 15% per year is closest to
In a hydrometer test, the data recorded at 60 minutes after the start of the test are as follows: Gs = 2.6, temperature of water T = 24°C and L = 9.2 cm. What is the diameter D of the smallest-sized particles
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 two dimensional so only a 1-foot section
If the densities of metals A and B are 4.27 and 6.35 g/cm3, respectively, whereas their respective atomic weights are 61.4 and 125.7 g/mol, determine whether the crystal structure for this alloy is simple cubic
Estimate the total cost and cost per linear foot for furnushing and driving steel-sheet piling for construction of the basement of a building, 150 by 240 ft. the piles will be 22 in. wide, 18 ft. long, and weigh 40.3 Ib/Lin ft. the piles will be driv..
How are compacted and loose bulk density used in real life. Also is a high degree of accuracy necessary in the bulk density tests
A 20 kg box is on an upward inclined surface of 30 degrees from the floor. the velocity of the box is zero when it is subjected to a constant horizontal force F=30N. assuming the surface is smooth,
The temperature was 200C, and the void ratio (e) of the soil was 0.43. Calculate the "Coefficient of Permeability" in "centimeters per second" (Given, k = (QL)÷(A Δh t)).
A cylindrical specimen of a metal alloy is stressed in compression. if its original and final diameters are 40.00mm and 40.10mm respectively, and its final length is 120.00mm, compute its original length (L1) if the deformation is totally elastic.
a. What is this investment's external rate of return b. What is the decision rule for judging the attractiveness of investments based on external rate of return c. Should Aerotron Electronics buy the water filtration system
A meat packing plant manager is trying to decide between twodifferent methods for cooling cooked hams. the spray methodinvolves spraying water over the hams until the ham temperature isreduced to 30 degrees Celcius. With this method approximately 80l..
A car travels along a horizontal circular curved road that has aradius of 600 m. If the speed is uniformly increased at a rate of2000 km/ h2 , determine the magnitude of theacceleration at the instant the speed of the car is 60 km/h.
If the detention storage on the paved section is increasing at the rate of 60 m3/hr, what is the runoff rate into the inlet grate?
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