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How did the global and national stock exchanges promote sustainability performance reporting? I: By adopting laws, regulations II: By listing standards that specifically mandate sustainability reporting. II only Both I and II

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Overview Syllabus Start Here! Course Modules Module 7 Quiz Chapters 10-11 01:37:58 Table of Contents ▲ Hide Time Remaining ▲ Calendar Announcements Part 2 of 2 - Chapter 11 Resources Discussions Assignments Question 14 of 25 1 Points Tests & Quizzes Gradebook Messages When preparing a statement of cash flows using the indirect method, a decrease in accounts payable is subtracted from net income. A. True Course Evaluation OB. False Attendance Reset Selection Roster Mark for Review What's This? MATH-130-03-F24 耳 View all my sites Previous Next Save ▲ Question Progress

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a) The analysis of measured wind data results in a mean wind speed of v = 8 m/s and a variance of σ² = 2.89 m²/s². What is the corresponding turbulence intensity I? b) Another measurement, taken at a location with roughness length zo = 0.03 m at 10 m height, results in a mean wind speed of v = 10 m/s. Using the logarithmic wind profile calculate the mean wind speed at 100 m. c) For a certain location the shape parameter k of the Weibull distribution of the mean wind speeds is known to be k = 2.0 and the long-time average wind speed is (v) = 7 m/s. Determine the corresponding scale parameter A of the Weibull distribution by using the approximate formula given in the lecture. d) By which factor does the power in the wind change if the wind speed increases from 5 m/s to 10 m/s? e) How does the wind speed behave depending on the height at an offshore location and at an onshore location, respectively? To answer this question, draw a qualitative sketch of a diagram and denote both curves. f) Consider an offshore location (a = 0.14) and an onshore location (a = 0.2). At both locations a wind turbine is planned which should see a mean wind speed of hub = 8 m/s at hub height. At both locations the measured mean wind speed at 100 m is 100 = 9.0 m/s. Based on the power law dependence of wind speed on height above ground (Hellmann formula): $$v(z_2) = v(z_1) \left(\frac{z_2}{z_1}\right)^\alpha$$. Which hub heights have to be chosen at the offshore and at the onshore location, respectively? g) In the lecture as well as in the exercises you have learned a formula to calculate the power, which a wind turbine can extract from an air mass flow. Using this formula complete the following table. Write down your approach to the solution. Take care of the units! (4 Points) Diameter D [m] Wind speed v [km/h] Air density p [kg/m³] Power coefficient Cp [-] Power P [MW] 1. 120 36.0 1.225 0.490 II. 34.2 1.225 0.480 2.4 h) Based on Betz's theory, is it possible to realize a wind turbine (rotor diameter 90 m) with rated power 3,0 MW at rated wind speed 10 m/s and an air density of 1.225 kg/m³? Give a reason for your answer. i) Determine the number of wind turbines needed to generate 30 MWh of electricity per day if each turbine is 40% efficient, has a rotor radius of 40 m, and is powered by a wind stream with a constant velocity of 18 km/h. Assume an air density of 1.225 kg/m³ and that the wind blows for only 16 hours per day.

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The duration of action of a barbiturate will depend most on: intensity of action active metabolism speed of absorption

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Consider the function: f(x)=2x^(3)-24x^(2)-x+7 Step' 1 of 2: Determine the intervals on which the function is concave upwards or concave downwards. Consider the function: f(x)=2x324x2-x+7 Step'1 of 2: Determine the intervals on which the function is concave upwards or concave downwards.

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the Price of tennis rackets for tennis balls the price of blue jeans falls blue Jean

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Consider the circuit in Fig. 5 in the case where R_(1)=96.2Omega ,R_(2)=71.2Omega ,R_(3)=96.2Omega . The source and load have the same resistance of R_(s)=R_(L)=50Omega . Figure 5: Cascade connection of a source, a three resistor pi -network and a load. Determine the input impedance Z_(in )=(V_(in ))/(I_(in )) and output impedance Z_(out )=-(V_(L))/(I_(L)) of the three resistor pi -network. Determine the gain (V_(L))/(V_(in )) of the circuit. (Use of Norton-Thevenin equivalence can be very useful here.) Determine the noise power and noise voltage contributions at the load R_(L) due to R_(s), R_(1),R_(2) and R_(3) if the noise bandwidth is 200MHz. Also determine the percentage contribution made by R_(s),R_(1),R_(2) and R_(3) to the total load noise power. Consider the circuit in Fig. 5 in the case where R1 = 96.2S,R2 = 71.2S,R3 = 96.22. The source and load have the same resistance of Rs=R=50Q. Figure 5: Cascade connection of a source, a three resistor T-network and a load. 1. Determine the input impedance Zin = Vin/Iin and output impedance Zout = -- V/I of the three resistor T-network. 2. Determine the gain V/Vin of the circuit. (Use of Norton-Thevenin equivalence can be very useful here.) 3. Determine the noise power and noise voltage contributions at the load R due to Rs: R, R2 and R3 if the noise bandwidth is 200 MHz. AIso determine the percentage contribution made by Rs, R1, R2 and R3 to the total load noise power.

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A simple farm milk packing system has one proximity sensor (using one of the buttons) to count the number of milk bottles, one start pushbutton, one stop pushbutton, and one reset pushbutton (using one of the switches) to reset counters. When the start button is pressed, the assembly line starts. After 5 milk bottles are detected by the proximity sensor, the packaging machine will be initiated to pack them into a box (i.e., each package/box must contain 5 bottles). Every time when 4 boxes are packed, the system has to stop automatically in order to let workers move those boxes off the assembly line. Please use PLC counters to complete the following tasks: (1) Counting 5 bottles for each box; (2) Counting 4 boxes; (3) Counting the total number of boxes filled in a day.

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94. Sludge, Inc. has an ending work in process inventory of $180 and an ending finished goods inventory of $300. Cost of goods manufactured was $630, and cost of goods sold $540. Production costs incurred during the period were $620. What are the beginning inventories for work in process and finished goods, respectively? a) $170 and $390 b) $190 and $210 c) $270 and $390 d) $170 and $210 Answer: b Difficulty: Medium Learning Objective: Explain product costs and cost flows through the manufacturing process. Learning Objective: Describe how costs are assigned to customized goods and services. CPA: Management Accounting Bloomcode: Application 95. Tern's Toys incurred $1,500 in production costs for the week. Work in process decreased by $100, and finished goods inventory increased by $500. What was the cost of jobs completed? a) $1,100 b) $1,400 c) $1,500 d) $1,600 Answer: d Difficulty: Medium Learning Objective: Explain product costs and cost flows through the manufacturing process. Learning Objective: Describe how costs are assigned to customized goods and services. CPA: Management Accounting Bloomcode: Application 96. Tern's Toys incurred $1,500 in production costs for the week. Work in process decreased by $100, and finished goods inventory increased by $500. What was the cost of goods sold? a) $1,100 b) $1,400 c) $1,500 d) $1,800

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Compute the voltage, at 25 °C, of an electrochemical cell comprised of pure iron (Fe) immersed in a 0.60 M solution of Fe$^{2+}$ ions, and pure magnesium (Mg) immersed in a 6.6 x 10$^{-2}$ M solution of Mg$^{2+}$ ions. The standard electrode potentials for Fe and Mg are -0.440 V and -2.363 V, respectively. Hints: First write an assumed overall reaction. The Nernst equation is your friend! 1.952 V. 2.046 V. -1.952 V. 0.595 V. 1.982 V.

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