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1.An object with a diameter of 8 feet and 500 kg is proposed to be instsalled under water as deep as 40m. If the seabed is muddy sand, how deep will the object be penetrated in the soil?
2.A 3-Dimensional vector has θx =0.67 radians andθy=1.233radians, what are the two possibleθz values (one between 0 and 09 deg, the other 90to 180 deg).
Give answers in degrees and radians.
3.A jet of water issues from a2-in diameter nozzle pointed directly down onto a flat plate located 14 feet below. velocity at the nozzle is 60 ft/sec. what force is exeerted on the plate?
The treated wastewater has a BOD of 12 mg/L and a k of 0.0338 1/d. The Broad River has a flow rate of 0.43 m3/s and an ultimate BOD of 5.0 mg/L.
If 90% of the weight of this brown sugar is sucrose (C12H22O11), what mass of dissolved oxygen would have been required to degrade this mass of sucrose had some not been recovered from the barge prior to its dissolution and dispersion into the riv..
Assume to just using coal as an electric energy source. Take efficency as %50 for average power plant.If the carbondioxide level is 400 ppm by volume now, what will be the carbondioxide level 10 years later
(1) To provide $750000 for th construction and $250000 for the initial equipment of a small engineering laboratory ; (2) to pay the $150000 per year laboratory operating cost; and (3) to pay for $100000 of replacement equipment every 4 years, beginn..
The velocity of a body is given by v(t) = 2t+t3. The body starts from rest at time t = 0 at position s(0) = (2,-10). What are the position and acceleration of the body as functions of time At what time, t, does the body cross the X-axis
You borrow $1000 and pay off the loan with interest after 4.5 years. The amount paid is $1500. What is the effective annual interest rate for this loan. Use a 6 month interest period.
A cylindrical specimen of some alloy 50.26 mm2 in cross sectional area is stressed elastically in tension. A force of 1620 N produces a reduction in specimen diameter of 5 X 10-3 mm. Compute Poisson's ratio for this material if its modulus of elas..
A significant obstacle in the design of atomic weapons is theso-called delta phase instability (a type of mixed dislocation) inPu-239. This is the problem: We wish to construct a sphericalatomic bomb core out of pure delta phase (f.c.c.) Pu-239. A de..
A soil sample with specific gravity of solids 2.70 has a mass specific gravity of 1.84 Assuming the soil to be perfectly dry,Determine the void ratio.
The investigation results indicated that the clay had a saturated density of 1.6 Mg/m3, an average initial void ratio of 1.8 and the preconsolidation pressure at the mid depth of the clay layer was 20 kPa.
Benefits associated with a project are $10,000 forever starting in year 1. The costs are $20,000 in year 0 and $20,000 in year 3. What is the B/C ratio at i=12% per year. First determine present worth for benefit and cost, respectively.
If a single deposit of $15,000 is invested at 2.75% yearly interest, what equal year-end withdrawls can be made each year for 10 years, leaving nothing in the fund after the 10th withdrawl
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