Engineering

if the output of a signal is 36% on and 64% off and repeats itself is it considered periodic helppppp
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Consider a point in a structural member that is subjected to plane stress. Normal and shear stresses acting on the horizontal and vertical planes at the point are shown in the figure. Note that the given stress values are absolute values and stress sign should be determined based on the figure. [0,-51 MPa, 0-86 MPa, y=45 MPa]O Determine the principal normal stress Op1-TxyO Determine the principal normal stress Op2O Determine the magnitude of maximum in-plane shear stress.O Determine the magnitude of the absolute maximum shear stress.
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Some project managers prefer the PERT chart over the Gantt chart because it clearly illustrates task dependencies. A PERT chart, however, can be much more difficult to interpret, especially on complex projects. Alternatively, some project managers may choose to use both techniques. If you are the project manager of a residential construction project, will you prefer PERT chart to Gantt chart? Explain why?
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Consider the given state of stress. Take X = 36 MPa and Y = 65 MPa. Determine the maximum shearing stress when z = +24 MPa. Determine the maximum shearing stress when z = 24 MPa. Determine the maximum shearing stress when z = 0.
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Which two technologies were combined to create product life cycle management (PLM) software?CAD and a databasespreadsheets and graphicsa database and spreadsheetsCAD and spreadsheets
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An NMOS transistor which is operating in linear region is found to have a resistance of 1M22. Assume the channel length is 5um, (W/L) = 5, ID = 100A, V th = 0.5V, and VGS = 3V. 1) Find the new channel width to increase the resistance to 4 M2 2) Find the new overdrive voltage to increase the resistance to 6 M2
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Tech A says that when measuring available voltage, the common (black) lead should be on a good ground. Tech B says that a resistance reading on a lightbulb requires the DMM to be hooked to each side of the bulb and the switch turned on. Who is correct?
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A stress of 92 MPa is applied in the [O 0 1] direction of a unit cell of a BCC iron single crystal. Calculate the resolved shear stress for the (1 1 01 1 1] slip system. Enter your answer to 2 decimal place!s e.g. 1.23
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create a html5 compliant web page. using javascript, do the following primarily using loops: create an array with 100 elements
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Represent each of the following signed decimal numbers in the 2's complement system. Use a total of 8 bits, including the sign bit.+32-128 +169-127-55
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EXERCISE 7.9.2 A thin-walled hollow sphere 2 m in diameter is subjected to internal pressure po. The wall thickness is 5 mm and the yield stress of the material is 250 MPa. Use both Tresca and von Mises yield criteria to determine the maximum internal pressure po that does not cause yielding Feedback? EXERCISE 7.9.3 Consider the problem of Example 7.3.1. Find the maximum po without causing yielding if N = 50 x 10^6 N (compression).
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1. which of the following access modifiers should be used if you want the member to be accessible to all external codea. publicb. any access modifier would be okc. default(package)e. protectedf. private
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Explain why the sequence of drilling, boring, and reaming produces a hole that is more accurate than drilling and reaming itonly. Q4 Why would machining operations be necessary even on net-shape or near-net- shape parts made by precision casting, forming. or powder metallurgy products. as described in preceding chapters? Explain. Q5 Explain the similarities and differences in the design guidelines for turning and for boring. Q6 Assume that you are asked to perform a boring operation on a large-diameter hollow workpiece. Would you use a horizontal or a vertical boring mill? Explain. Q6 in modern manufacturing, which types of metal chips would be undesirable and why? 23.41 Calculate the same quantities as in Example 23.1 for high-strength titanium alloy and at N 700 rpm. 23.42 Estimate the machining time required to rough turn a 0.50-m-long annealed copper-alloy round bar, from a 60-mm diameter to a 58-mm diameter, using a high speed steel tool. (See Table 23.4.) Estimate the time required for an uncoated carbide tool. 2344 A 7.5 mm-diameter drill is used on a drill press operating at 300 rpm. If the feed is 0.125 mm/rev, what is the MRR? What is the MRR if the drill diameter is doubled 23.45 In Example 23.4, assume that the workpiece material is high-strength aluminum alloy and the spindle is running at N 500 rpm. Estimate the torque required for this operation. Ch
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Question: Prove that the given function u(x, y) = -8xy + 8xy3 is harmonic
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.Organizations should work to improve process capability so that quality control efforts can become more ________.A. effectiveB. efficientC. necessaryD. unnecessaryE. widespread
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In the context of mechanical systems, what does the term efficiency mean? OA the factor by which a machine multiplies a force B. the ratio of a machine's power to the force of its input . the rate at which a machine performs work D. the rate at which a machine consumes energy E. the ratio of the work output of a machine to the work input
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assume that the kvcu antenna is a half-wave transmitting antenna (oriented vertically with respect to the ground). how tall should it be?
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considering the fact that solar radiation travels in a straight line, explain why you can see an apple on the ground directly under an apple tree.
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Identify the correct product obtained via the reaction of Butan-2-one under the six conditions outlined below.1. Sodium Borohydride followed by work up.2. Methyl lithium followed by work up.3. Isopropyl magnesium bromide followed by work up.4. Methyl triphenylphosphonium bromide and a base.5. Two equivalents of methanol in the presence of an acid catalyst.6. Zinc amalgam and hydrochloric acid.Identify the correct product obtained via the reaction of propanal under the six conditions outlined below.1. Sodium Borohydride followed by work up.2. Methyl lithium followed by work up.3. Isopropyl magnesium bromide followed by work up.4. Methyl triphenylphosphonium bromide and a base.5. Two equivalents of methanol in the presence of an acid catalyst.6. Zinc amalgam and hydrochloric acid.Identify the correct product obtained via the reaction of 3-methylbutan-2-one under the six conditions outlined below.1. Sodium Borohydride followed by work up.2. Methyl lithium followed by work up.3. Isopropyl magnesium bromide followed by work up.4. Methyl triphenylphosphonium bromide and a base.5. Two equivalents of methanol in the presence of an acid catalyst.6. Zinc amalgam and hydrochloric acid.
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Which directory does the filesystem hierarchy standard (FHS) recommend for locating configuration files? A. /opt/ B. /usr/ C. /var/ D. /etc/
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Select the operational amplifier circuit that will give the following outputs:10. An output that is a linear function of the input.11. An output that always has a voltage gain of 1.12. An output that is proportional to the integral of the input voltage.13. For the operational amplifier circuit shown in the following figure:3RRR3ROutputThe output is:A Three times the sum of V and V2.B Three times the difference between V and V2.C Twice the sum of V and V2.D Twice the difference between V and V2.14. The operational amplifier circuit shown in the following figure includes a thermistor.V+100Thermistor300 100The relay must be activated when the thermistor resistance is:A Less than 100 A.B 200 A.C Between 100 and 300 A.D More than 300 A.15. Decide whether each of these statements is TRUE (T) or FALSE (F).The Wheatstone bridge shown
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A venturi meter, which has a throat diameter of 4 cm, needs to be installed in a pipe of inner diameter of 10 cm. If the minimum pressure drop measured by a mercury manometer is 1.5 cm, what will be the minimum flow of water at 25C that can be recorded? Assume the coefficient of venturi meter is 0.98 and density of water at 25C is 997 kg/m3 .
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Orders for a stock trading system are coded as follows from left to right i. The first character is 'B' for a "buy" order, 'S' for a "sell" order ii. The number of shares to buy or sell iii. The stock ticker symbol in all uppercase letters for a "buy" order or all lowercase letters for a "sell" order iv. If the order is a "limit" order with a specific buy/sell price, the requested price in pennies, otherwise the price should be omitted and the order will be a market order at the current asking price for the stock v. If the order is a "limit" order with an expiration time, the character 'T' followed by the number of minutes until the order expires and should no longer be executed Note that the order code may only contain letters and numbers. It may not include comma, hyphen, etc. What would the code be for a limit order to sell 2,500 shares of Oracle stock (ticker symbol: ORCL) at $40.00 a share?
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