Q & A - Engineering

Q & A

• Dynamics problem Starting from rest a wheel accelerates uniformly to 300 rpm in 5 seconds After rotating at 300 rpm for some time it is braked to a stop in 90 seconds If the Dynamics problem: Starting from rest, a wheel accelerates uniformly to 300 rpm in 5 seconds. After rotating at 300 rpm for some time, it is braked to a stop in 90 seconds...
• Dynamics problem Starting from rest a wheel accelerates uniformly to 300 rpm in 5 seconds After rotating at 300 rpm for some time it is braked to a stop in 90 seconds If the total number of Dynamics problem: Starting from rest, a wheel accelerates uniformly to 300 rpm in 5 seconds. After rotating at 300 rpm for some time, it is braked to a stop in 90 seconds...
• The total annual electrical energy production in the United States is about 4000TWh while the useful heat produced by cogeneration is about 1500 TBtu annually Use these figures to confirm the The total annual electrical energy production in the United States is about 4000TWh, while the useful heat produced by cogeneration is about 1500TBtu annually. Use these ...
• The member OA of the industrial robot telescopes At the instant represented = 60° 1.2 red/s The base of the robot is revolving at the constant rate w 1 4red/s Calculate the magnitudes of The member OA of the industrial robot telescopes At the instant represented, ? = 60°, ? = 1.2 red/s,The base of the robot is revolving at the constant rate w = 1.4red/s C...
• Show transcribed image text For the beam of length 30 inches shown below if the tension in the cable is known to be 10 kip and F 50 kip find the safety Show transcribed image text For the beam of length 30 inches shown below, if the tension in the cable is known to be 10 kip and F = 50 kip, find the safety factor against...
• Show transcribed image text For the beam of length 30 inches shown below if the tension in the cable is known to be 10 kip and F 50 kip find the safety factor against failure Show transcribed image text For the beam of length 30 inches shown below, if the tension in the cable is known to be 10 kip and F = 50 kip, find the safety factor against...
• Show transcribed image text For the beam of length 30 inches shown below if the tension in the cable is known to be 10 kip and F 50 kip find the safety factor against failure if the material was Show transcribed image text For the beam of length 30 inches shown below, if the tension in the cable is known to be 10 kip and F = 50 kip, find the safety factor against...
• The motorcycle has a mass of 0.5 Mg and a negligible size It passes point A traveling with a speed of 15 m/s which is increasing at a constant rate of 1.5 m/s Determine the resultant frictional The motorcycle has a mass of 0.5 Mg and a negligible size. It passes point A traveling with a speed of 15 m/s , which is increasing at a constant rate of 1.5 m/s . Determ...
• At a certain instant, the velocity of cylinder B is 1.2 m/s down and its acceleration is 2m s2 up Determine the corresponding velocity and acceleration of block At a certain instant, the velocity of cylinder B is 1.2 m/s down and its acceleration is 2m/s2 up. Determine the corresponding velocity and acceleration of block A.
• The force P which is applied to the 10 kg block initially at rest varies linearly with time as indicated by the graph If the coefficients of static and kinetic friction between the block and the The force P, which is applied to the 10 kg block initially at rest, varies linearly with time as indicated by the graph. If the coefficients of static and kinetic frictio...
• A parachutist jumps from a height of 3 1 10 Power 3 m and falls freely for 10 s She then opens her parachute and for the next 20 s slows down with an acceleration of A parachutist jumps from a height of 3.1 × 10[Power 3] m and falls freely for 10 s. She then opens her parachute, and for the next 20 s slows down with an acceleration of...
• List some of the factors to be considered in the selection of a bridge type Explain why it is necessary for the factors to be kept in proper balance and considered of equal importance 1. List some of the factors to be considered in the selection of a bridge type. Explain why it is necessary for the factors to be kept in proper balance and considered of...
• In selecting abutments, what steps can be taken to give a bridge spanning traffic a feeling of openness? 2. In what ways do integral abutment and joint less bridge designs reduce maintenance costs 1. In selecting abutments, what steps can be taken to give a bridge spanning traffic a feeling of openness?2. In what ways do integral abutment and joint less bridge desi...
• What is the purpose of a latch What is the advantage of a latch bolt over a dead bolt 1. What is the purpose of a latch?2. What is the advantage of a latch bolt over a dead bolt?
• What is the purpose of weather stripping Where should weather stripping be placed 1. What is the purpose of weather stripping?2. Where should weather stripping be placed?
• Power splitters can be built using three resistors connected in either star or delta configuration. Which configuration is the most reliable What is the insertion loss between the source and each 1. Power splitters can be built using three resistors connected in either star or delta configuration. Which configuration is the most reliable? What is the insertion los...
• A pivot in a linkage has a pin in the figure whose dimension a ta is to be established Thethickness of the link clevis is 37 5 0125 mm The designer has concluded that A pivot in a linkage has a pin in the figure whose dimension a ± ta is to be established. Thethickness of the link clevis is 37.5 ± 0.125 mm. The designer has concluded t...
• A pivot in a linkage has a pin in the figure whose dimension a ta is to be established. Thethickness of the link clevis is 37 5 0125 mm The designer has concluded that a gap of between A pivot in a linkage has a pin in the figure whose dimension a ± ta is to be established. Thethickness of the link clevis is 37.5 ± 0.125 mm. The designer has concluded t...
• Determine the effective slenderness ratio of a 4-m column with built-in ends if its cross section is a square 80mm on each side Determine the effective slenderness ratio of a 4-m column with built-in ends if its cross section is a square 80mm on each side.
• Figure below illustrates the outer housing of a rotor assembly of which a production volume of 100,000 is required The assembly is designed to spin at a high Figure below illustrates the outer housing of a rotor assembly, of which a production volume of 100,000 is required. The assembly is designed to spin at a high speed duri...
• Figure below illustrates the outer housing of a rotor assembly of which a production volume of 100,000 is required The assembly is designed to spin at a high speed during which Figure below illustrates the outer housing of a rotor assembly, of which a production volume of 100,000 is required. The assembly is designed to spin at a high speed duri...
• Figure below illustrates the outer housing of a rotor assembly of which a production volume of 100,000 is required The assembly is designed to spin at a high speed during which the housing is Figure below illustrates the outer housing of a rotor assembly, of which a production volume of 100,000 is required. The assembly is designed to spin at a high speed duri...
• What is double wishbone suspension What is the importance of roll center What is double wishbone suspension ? What is the importance of roll center ?
• fig.shows a connection that employs three SAE grade 5 bolts Find the factor of Safety fig.shows a connection that employs three SAE grade 5 bolts. Find the factor of Safety
• A thin-walledcylindrical pressure vessel with closed ends is subjected to an internal pressure of 100MPa The internal diameter is 50mm If the yield stress for the pressure vessel is A thin-walledcylindrical pressure vessel with closed ends is subjected to an internal pressure of 100MPa. The internal diameter is 50mm. If the yield stress for the press...
• An aircraft component is fabricated from an aluminum alloy that has a fracture toughness of 48.0 MPa/m^1/2. It has been determined that fracture results at a stress of 380MPa when the maximum An aircraft component is fabricated from an aluminum alloy that has a fracture toughness of 48.0 MPa/m^1/2. It has been determined that fracture results at a stress of 38...
• The wing of a MD 757 aircraft is fabricated from an aluminum alloy with a fracture toughness of 25 MPavm. It has been determined that catastrophic fracture occurs when this alloy has a sharp internal The wing of a MD 757 aircraft is fabricated from an aluminum alloy with a fracture toughness of 25 MPavm. It has been determined that catastrophic fracture occurs when th...
• One end of the hollow aluminum shaft is fixed and the other end is connected to a gear with diameter of 40 kN. The shear modulus of the aluminum is 2 810^10 Pa What is the maximum angle of twist and One end of the hollow aluminum shaft is fixed and the other end is connected to a gear with diameter of 40 kN. The shear modulus of the aluminum is 2.8x10^10 Pa. What is ...
• We have the task to design an industrial lift table according to the following principle sketch where L 1200 mm We should be able to control the table height between 320 mm We have the task to design an industrial lift table according to the following principle sketch where L = 1200 mm. We should be able to control the table height between ...
• A fluid sample is contained between two parallel plates separated by a distance of 2 mm. The area of the plates is 100 cm 2 The bottom plate is stationary and the top plate moves at a velocity of A fluid sample is contained between two parallel plates separated by a distance of 2 mm. The area of the plates is 100 cm 2 . The bottom plate is stationary, and the top ...
• Answer to the correct number of significant figures 04518 g of compound A is dissolved in 150.0 ml of solution Then 5 00 ml of the Answer to the correct number of significantfigures.0.4518 g of compound A is dissolved in150.0 ml of solution. Then 5.00 ml of theobtained solution is transferred into a ...
• What is the chief limitation to the use of digital techniques What is the chief limitation to the use of digital techniques?
• Clearly explain how studying an object’s spectrum can allow us to determine each of the following properties of the object The object’s surface chemical composition Clearly explain how studying an object’s spectrum can allow us to determine each of the following properties of the object. a. The object’s surface chemical composition b...
• Can you ride a bike Do you remember learning to ride it Can you describe to others the principles of riding a bike Do you think that if you gave a detailed set of instructions to another person Can you ride a bike? Do you remember learning to ride it? Can you describe to others the principles of riding a bike? Do you think that, if you gave a detailed set of ins...
• Calculate the following The number of moles of NaI in 50 0 mL of 0 250 M solution The number of grams of KBr in 120 mL of 0 500 M solution The number of grams of Calculate the following: a. The number of moles of NaI in 50.0 mL of 0.250 M solution b. The number of grams of KBr in 120 mL of 0.500 M solution c. The number of grams o...
• Summarize statistical methods used in forecasting and the types of time series to which they are most appropriate Summarize some of the practical issues in using forecasting tools and approaches Summarize statistical methods used in forecasting and the types of time series to which they are most appropriate.2. Summarize some of the practical issues in using forec...
• Design a six-liter race car engine that operates on a four-stroke cycle Decide what the design speed will be and then give the number of cylinders bore stroke piston rod length average piston Design a six-liter race car engine that operates on a four-stroke cycle. Decide what the design speed will be, and then give the number of cylinders, bore, stroke, piston...
• The vanillin molecule is the primary molecule present in vanilla extract The molecular mass of vanillin is 152 08 grams per mole and contains 63 18% carbon 5 26% hydrogen and 31 56% oxygen 1) The vanillin molecule is the primary molecule present in vanilla extract. The molecular mass of vanillin is 152.08 grams per mole and contains 63.18% carbon, 5.26% hyd...
• A piston cylinder assembly contains 1 kg of nitrogen gasThe gas expands from an initial state where T1 700 K and P1 5 bar to a final state where P2 2 bar During the process the pressure and the A piston cylinder assembly contains 1 kg of nitrogen gas.The gas expands from an initial state where T1 =700 K and P1 = 5 bar to a final state where P2 = 2 bar.During the...
• On August 15 2015 Low Rider Automotive established a line of credit at its bank with interest at 8 75% pa This line of credit was used to purchase $5000 of inventory and supplies On August 15, 2015, Low Rider Automotive established a line of credit at its bank, with interest at 8.75% p.a. This line of credit was used to purchase $5000 of inventory...
• Steam at Too1 340 °C flows in a cast iron pipe k- 80 W/m°C whose inner and outer diameter are Di 6 cm and D2 -8 cm respectively Steam at Too,1 340 °C flows in a cast iron pipe [k- 80 W/m.°C] whose inner and outer diameter are Di 6 cm and D2 -8 cm, respectively. The pipe is covered with a 4-cm thic...
• Please explain about the solution of this problem step by step Air contained within a piston-cylinder assembly is slowly heated Please explain about the solution of this problem step bystep.Air contained within a piston-cylinder assembly is slowlyheated .As shown in fig., during this process the p...
• A stake is pulled out of the ground by means of two ropes as shown Knowing that a 30 degrees determine by trigonometry the magnitude of the force P so that the resultant force exerted on the A stake is pulled out of the ground by means of two ropes as shown.A.) Knowing that a = 30 degrees, determine by trigonometry the magnitude of the force P so that the res...
• Consider a 300mm x 300mm window in an aircraft For a temperature diference of 80 degrees C from the inner to outer surface Consider a 300mm x 300mm window in an aircraft. For a temperature diference of 80 degrees C from the inner to outer surface of the window. Calculate the heat lossthrough ...
• Consider a cylidrical titanium wire 3.0 mm 12in in diameter and 2.5 10 4 mm 1000 in long Calculate its elongation when Consider a cylidrical titanium wire 3.0 mm (.12in) in diameter and 2.5*10^4 mm (1000 in) long. Calculate its elongation when a load of 500 N (112 lbf) is applied.Assume t...
• Way Out Bikes Situation The owner of Way Out Bikes asked you for advice about acquiring an information system for her business The company Way Out Bikes Situation: The owner of Way Out Bikes asked you for advice about acquiring an information system for her business. The company specializes in helping custo...
• Determine developed torque and shaft torque of 220-V 4-pole series motor with 800 conductors wave-connected supplying a load of 8.2 kW by taking Determine developed torque and shaft torque of 220-V, 4-pole series motor with 800 conductors wave-connected supplying a load of 8.2 kW by taking 45 A from the mains. The...
• A separately excited D.C generator has armature circuit resistance of 0 1 ohm and the total brush-drop is 2 V When running A separately excited D.C. generator has armature circuit resistance of 0.1 ohm and the total brush-drop is 2 V. When running at 1000 r.p.m., it delivers a current of 100 ...
• What are indifference curves Explain the consumers’ equilibrium under the assumptions of ordinal approach What are indifference curves? Explain the consumers’ equilibrium under the assumptions of ordinal approach.
• If you purchased a new model of a digital camera right after it is release you will likely pay more than if you purchase it six months after release Explain why this is an example of price If you purchased a new model of a digital camera right after it is released, you will likely pay more than if you purchase it six months after release. Explain why this i...