A paper company is interested in estimating the proportion of trees in a 500-acre forest with diameters exceeding 2 feet. The company selects 25 plots (100 feet by 100 feet) from the forest and utilizes the information from the 25 plots to help estimate the proportion for the whole forest
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A 65kg Bicyclist rides 88kg bicycle with a speed of 40m/s. (a) How much work must be done by the brakes to bring the bike and rider to a stop? (b) how far does the bicycle travel if it takes 4.0 second to come to rest? (c) What is the magnitude of the braking force?
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A block with mass m = 7 kg is projected up a rough incline angled at θ = 34 degrees to the ground with a speed of v = 5.1 m/s. Just after release, a small booster strapped to the block ignites, providing a constant thrust of T = 110 N as the block travels up the incline
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An unknown compound X is one of the four compounds listed in the Table below. A mixture of X with benzoic acid melts at 89 degrees Celsius, a mixture of X with phenyl succinate melts at 90 degrees Celsisus, and a mixture of X with m-aminophenol melts at 120 degrees Celsisus
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Explain how to manage potential issues that may arise while building your diverse workforce and propose solutions to ease the transition within your scenario organisation. Submit your training session as a PowerPoint Presentation, with presenter notes for each slide.
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A line of sheet piling is driven 4m into a firm clay and retains, on one side, a 3m depth of fill on top of the clay. Water table level is at the surface of the clay. The unit weight of the fill is 18kN/m3 and the saturated unit weight of the clay is 20kN/m3.
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What are specific strategies that an organization might use to best capitalize on a mixed-age employee base?
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Prepare a schedule to be presented to management for the mileages of 5000, 10 000, 15 000 and 30 000 miles per annum - state the approximate total costs applicable to 18 000 miles and 25 000 miles and the total cost per mile at these two mileages.
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many computer keyboards operate on the principle of capacitance. each key forms a small parallel-plate capacitor whose
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A single turn current loop carrying a current of 4.0A, is in the shape of a right triangle with sides 50cm, 120 cm, 130 cm. The loop is in a uniform magnetic field of magnitude 75 mT whose direction is parallel to the current in the 130 cm side of the loop.
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A toroidal shaped magnetic material of radius, a, and cross sectional radius R has a small transverse gap cut into it of length l. The toroid is uniformly overwound with a coil of N loops carrying a current I. Show that for a ferromagnetic material the field in the gap is given by
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Hot exhaust gases leaving an internal combustion engine at 400 C and 150kPa at a rate of 0.8 kg/s is to be used to produce saturated steam at 200 C in an insulated heat exchanger. Water enters the heat exchanger at the ambient temperature of 20 C, and the exhaust gases leave the heat exchanger at 30 C.
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an ideal vapor-compression refrigeration cycle with ammonia as the working fluid has an evaporator temperature of -20 c
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Determine an equation for the efficiency of the gear train in terms of the load (torque) on shaft 2 and determine the input power required at shaft 1.
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Determine an equation for the efficiency of the gear train in terms of the load (torque) on shaft 2 (all other factors remaining constant).
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The energy levels of a localized particle are 0, epsilon , and 2 epsilon . The middle level is doubly degenerate and the other levels are nondegenerate. Write and simplify the partition function.
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Write a program that will open a BLASTN nucleotide to nucleotide search output file, parse out specific information, and produce formatted output that will be written to STDOUT
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Describe procedures for preparing each of the following compounds, using ethanol as the source for all of their carbon atoms (you can use any reagent you like, but every carbon in every product below must have originated in ethanol; once you prepare a compound, you need not repeat its synthesis in a subsequent part of this problem)
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a gold-mining firm is concerned about short-term volatility in its revenues. gold currently sells for 1592 an ounce but
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a ball is thrown so that the motion is defined by the equations x5t and y26t-4.9t2 where x and y are expressed in
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