Prototypes don't do: (Option D) remain unchanged throughout the design process.
Prototypes are used to experiment with ideas, test improvements and fix flaws, and create physical models during the design process, but they can change throughout the design process.
Prototypes are used to experiment with ideas, test improvements and fix flaws, and create physical models during the design process. They are an important part of the design process, as they allow designers to identify problems, discover solutions to those problems, and make necessary changes during the development process. Prototypes are not static, and can change throughout the design process in order to more accurately reflect the final product. This allows designers to ensure that the final product meets their needs and the needs of their users.
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1.4-9 two steel wires support a moveable overhead camera weighing w 5 28 lb (see fgure part a) used for close-up viewing of field action at sporting events. at some instant, wire 1 is at an angle a 5 228 to the horizontal and wire 2 is at angle b 5 408. wires 1 and 2 have diameters of 30 and 35 mils, respectively. (wire diameters are often expressed in mils; one mil equals 0.001 in.) (a) determine the tensile stresses s1 and s2 in the two wires. (b) if the stresses in wires 1 and 2 must be the same, what is the required diameter of wire 1?
Typically, it is either 1 mm or 0.5 mm. The experiment on how to use a screw gauge to measure the diameter of a given wire is shown below.
What is the required wire diameter 1?Calculating the equivalent cross sectional copper area is the proper way to determine the gauge of stranded wire. Measure the bare diameter of one strand first, then find the circular mils value in the row that corresponds to your measurement. The circular mils are then multiplied by the quantity of cable strands.
The area of a circle with radius r, or one with diameter d = 2r, is represented by the cross-sectional area of wire A:
A=πr2=π(d2) 2
By 3.14, or Pi, divide the wires' circumference. The equation circumference divided by pi equals diameter, or C ? = D, is used to calculate diameter from circumference. For the conversion, use 3.14 as a close approximation of Pi.
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Personal protective equipment (PPE) protects fire fighters in hazardous atmospheres. Which of the following is designed to protect fire fighters during most building fires?
US The turnout outfit, which consists of a protective coat and pants, is a requirement for firefighters, as well as other personal protective equipment (PPE) such a helmet, gloves, boots, and a self-contained breathing apparatus.
They should correctly wear an SCBA until it is considered safe to remove it in order to prevent exposures to hazardous chemicals through inhalation and skin absorption. Following an emergency reaction, a process known as secondary decontamination, firefighters are still at risk of inhaling dangerous substances. Protective clothing with a support function (meets NFPA 1993) air-purifying, canister-equipped, full-facepiece respirator. Safety boots and gloves that can withstand chemicals. Self-contained breathing apparatuses (SCBA) are essential for firefighters because they shield them from hazardous heat and poisonous smoke. The safety of the nation's firefighters quickly improved as a result of NIST research that contributed to strengthening industry standards for SCBA performance.
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a body is kept moving in a circle of constant radius. if the speed of the body ius doubled, the centripetal acceleration will. the horizontal distance travelled by a projwectile is called the. the rising and falling times of a projectile are equal if the launching position is the landing position
The horizontal distance travelled by a projectile is called its range.
What is the acceleration?The rate at which velocity changes is called acceleration. Acceleration often indicates a change in speed, but not necessarily. An item that follows a circular course while maintaining a constant speed is still moving forward because the direction of its motion is shifting.acceleration: the rate at which the speed and direction of a moving object vary over time. A point or object going straight forward is accelerated when it accelerates or decelerates.zero,Acceleration is 0 in a circular motion that is uniform.The formula for centripetal acceleration is a=v 2 /R. Therefore, if v is doubled and R is cut in half, we have a ′ = 4v 2 /(R/2)=8a.
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the most vexing problem faced by researchers exploring wind-powered generation of electricity is achieving a constant flow of power from an unpredictable natural source that meets demand, but so the flow does not overload electrical grids with sudden voltage increases.
The flow does not cause sudden voltage increases that overload electrical grids.
What is wind power?When the wind is used to produce mechanical or electrical energy, the process is known as wind power or wind energy. Wind turbines produce mechanical power from the kinetic energy of the wind.
Wind is not only a plentiful and limitless resource, but it also generates electricity without consuming any fuel or polluting the atmosphere. The largest renewable energy source in the US continues to be wind, which helps us rely less on fossil fuels.
The process of harnessing wind to produce electricity is known as wind energy (or wind power). Wind turbines produce mechanical power from the kinetic energy of the wind. Electricity can be produced by a generator using mechanical power. For specific tasks like pumping water, mechanical power can also be used directly.
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a student conducts an experiment to verify whether momentum is conserved for a situation in which a collision occurs. the two objects, object x and object y, travel toward each other, as shown in figure 1. after the collision, the two objects travel as shown in figure 2. data collected from three trials of this experiment are shown in the table. which of the following statements is correct based on the data?
Momentum is a vector quantity, hence the vector sum of the momenta should be compared. After the collision, the kinetic energy of the system in scenario 1 will be lower than that in scenario 2.
The system's momentum prior to the collision and the system's momentum following the collision should be same in order to demonstrate momentum conservation. In order to determine the ultimate velocities of Cart XX and Cart YY, a student must measure the beginning velocities of Cart XX and Cart YY. The velocities of each item may be measured before to, during, and after the impact thanks to this arrangement of motion detectors and their placements. (There are two exterior sensors)
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a heat engine with a thermal efficiency of 50% produces 200 kj of net work output. determine the heat input. multiple choice question. 200 kj 400 kj 50 kj 100 kj
If a heat engine with a thermal efficiency of 50% produces 200 kj of net work output, the heat input is 400 kJ.
The thermal efficiency of a heat engine is defined as the amount of usable work that is produced for a given amount of heat energy input.
Thermal efficiency is defined as a percentage of the quantity of heat delivered to the amount of heat obtained from the heat engine. If we offer 100% heat energy, it will be lowered to its lowest level once the procedure is completed. So, at any time, we will notice a difference between those two values, and that difference is nothing more than the thermal efficiency, which may be either 1% or 100%.
Mathematically,
efficiency = (output work/input energy) x 100%
Information available in the problem:
efficiency = 50%
output work = 200 kJ
Hence,
heat input = output work/efficiency
= 200 kJ/50%
= 200/0.5 = 400 kJ
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Based on your research, identify security controls that could be implemented in the Workstation, LAN, LAN-to-WAN, WAN, Remote Access, and System/Application Domains. Recommend and explain one security control for each domain. Be sure to cite your sources.
User domain, Workstation domain, LAN, LAN-to-WAN, Remote Access domain, WAN domain, and System/Application domain are a few of them. If defences are absent or fall short, attackers will see each of these domains as entry points.
For many enterprises, the LAN-to-WAN domain designates their connection to the Internet. There is a big risk associated with this link. The configuration of devices in LAN-to-WAN security standards is frequently centred on preserving message and transaction integrity. The following dangers might be present in this area: Only a basic modem is installed; there is no firewall. absence of any perimeter defences. inadequate intrusion detection and prevention. The organization's local area network (LAN) infrastructure is referred to as the LAN domain. A LAN enables the connection of two or more computers in a constrained physical space. The compact area might be a house, an office, or a collection of structures.
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ATP is consumed in some of the steps of the glycolytic pathway. For the reactions shown, which consume ATP? glucose 6-phosphate fructose 6-phosphate dihydroxyacetone phosphate glyceraldehyde 3-phosphate 3-phosphoglycerate 2-phosphoglycerate phosphoenolpyruvate pyruvate 1,3-bisphosphoglycerate 3-phosphoglycerate 2-phosphoglycerate phosphoenolpyruvate glyceraldehyde 3-phosphate- 1,3-bisphosphoglycerate pyruvate lactate fructose 1,6-bisphosphate dihydroxyacetone phosphate + glyceraldehyde 3-phosphate glucose glucose 6-phosphate fructose 6-phosphate- fructose 1,6-bisphosphate
Investments are made during Stage 1. When glucose is transformed to fructose-1,6-bisphosphate, 2 molecules of ATP are used up. Inside the cell, glucose is imprisoned.
What number of ATP are there in the glycolytic pathway?In the course of glycolysis, glucose eventually decomposes into pyruvate and energy, yielding a total of 2 ATP (Glucose + 2 NAD+ + 2 ADP + 2 Pi --> 2 Pyruvate + 2 NADH + 2 H+ + 2 ATP + 2 H2O).
What action causes ATP to be used up?Processes include ion transport, muscular contraction, nerve impulse transmission, substrate phosphorylation, and chemical synthesis all use ATP as an energy source. There is a significant need for ATP in these and other processes.
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The rigid bar EFG is supported by the truss system shown. Determine the cross-sectional area of member AE for which the normal stress in the member is 15 ksi. It is given that p=4200 lb. 6 bula P 4f74f- 4f- The cross-sectional area of member AE is i n?
The physiological cross-sectional area (PCSA) of a muscle, typically at its biggest point, is the area of the cross section of a System taken perpendicular to its fibers.
It is frequently employed to explain how pennate muscles contract. In contrast, the cross-sectional area is the area obtained when splitting the identical item into two. Cross sectional area refers to the size of that specific cross section. When an object is present at a location, its area is measured; however, when a 3D object is cut perpendicularly, its cross-sectional area is measured. Any rectangular solid, including a cube, has a volume equal to the base's area (length times width) times the height: V = l × w × h.
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alternative sorting another sorting method, the counting sort, does not require comparison. instead, you create an integer array whose index range covers the entire range of values in your array to sort. each time a value occurs in the original array, you increment the counter at that index. at the end, run through your counting array, printing the value of each non-zero valued index that number of times.
A linear sorting algorithm with asymptotic complexity of O(n+k) is counting sort. An efficient and dependable sorting algorithm is the counting sort technique. Contrary to bubble and merge sort, counting sort does not rely on comparisons.
Unlike the widely used comparison sorts, the Radix sort is a non-comparative sorting algorithm. The radix sort has a worst-case time complexity of O(k•n), which is linear and preferred to sorts with logarithmic complexity. K is the number of iterations and n is the number of items. The speed differential between these two sorting algorithms is one of the most important ones. Because no comparison is made, non-comparison sorting is typically quicker than sorting. For comparison-based sorting algorithms, the speed restriction is O(NlogN), but for non-comparison-based methods, the speed limit is O(n), or linear time.
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Problem 3 2 in. 2 in. 2 in. For the area shown, a. Locate the centroid. b. The moment of inertia 1, with respect to an axis through the centroid that is parallel to side AB c. The corresponding radius of gyration Rex with respect to an axis through the centroid that is parallel to side AB. 1 in. 3 in A B
Knowing the mass of the I section's centre of mass is necessary to calculate the moment of inertia of the I section.
Define centroid?A body's geometric centre is known as a centroid. It alludes to the uniform density object's c, or centre of gravity.
A body's centroid is the location where the volume on each side is equal. A solid body made of a single material has its mass at its centroid. The centroid and centre of mass of a body are identical if its mass is dispersed evenly.
The centroid is the object's focal point. The centroid of a triangle is the location where the three medians of the triangle intersect. The intersection of all three medians is another definition for it.
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TRUE/FALSE. in complex piping systems, it is desirable to use double-line multiview drawings drawn accurately to scale.
TRUE. It is preferable to utilize double-line multiview drawings that are appropriately scaled for complex plumbing systems.
What are the purposes of multiview drawings?An multiview painting is one that depicts two or more perspectives of a three-dimensional subject in two dimensions.Drawings with many perspectives show an object's shape.Multiview drawings are the primary means of communication among designers and manufacturers when used in conjunction with dimensions.
What procedure is followed in creating a multiview drawing?Multiview or graphical drawings can be made using parallel projection techniques.This front multiview design was made using orthographic projection, which involves projecting specifics onto a plane parallel to the viewpoint of the object that was chosen as the front.
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An ultrasonic occupancy sensor emits high-power, low-frequency sound waves and
listens for a phase shift in the reflected sound returning to the sensor, which
indicates a moving target.
True
False
The correct answer is False. An ultrasonic occupancy sensor emits high-power, low-frequency sound waves andlistens for a phase shift in the reflected sound returning to the sensor, whichindicates a moving target.
Simply said, ultrasound is sound that is audible to humans yet has a frequency higher than 20 kHz.Ultrasound is employed at frequencies up to several GHz at the high end of the spectrum. Ultrasonic equipment is used for both object detection and distance measures. In medicine, sonography and ultrasound imaging are often employed. Ultrasound is used to find hidden faults in goods and buildings during nondestructive testing.Ultrasonic sensors operate by discharging sound waves at a frequency that is inaudible to humans.
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Using the method of joints, determine the force in each
member of the truss shown. State whether each member is in tension
(T) or compression (C).
Each member is in tension (T) or compression (C) is F_AB = F_AD = F_BC = F_CD.
What is compression?
Compression is the process of reducing the size of a file or data by encoding it using fewer bits. It helps to reduce the amount of space needed to store and transfer data. Compression techniques can be used to reduce the size of digital images, audio, video, and other types of data.
Given:
The truss shown consists of four members: AB, BC, CD, and AD.
Using the method of joints, we can determine the forces in each member by considering the equilibrium of each joint.
For joint A:
Sum of forces in the x-direction = 0
F_AB - F_AD = 0
F_AB = F_AD
For joint B:
Sum of forces in the x-direction = 0
F_AB - F_BC = 0
F_AB = F_BC
For joint C:
Sum of forces in the x-direction = 0
F_BC - F_CD = 0
F_BC = F_CD
For joint D:
Sum of forces in the x-direction = 0
F_AD - F_CD = 0
F_AD = F_CD
Therefore, we can conclude that the forces in each member are equal.
F_AB = F_AD = F_BC = F_CD
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if the technician believes that a hermetic compressor has permanently open internal overload protector, the technician should test the compressor while it is:
The technician should test the hermetic compressor while it is still cool if they think it has an inbuilt overload safeguard that is always open. A control string is a group of two or more switch contacts that are wired together to regulate a load in a circuit or group of circuits.
The load side of the contactor is where you should check the voltage input to a compressor. Even when the exterior unit is not functioning, consumers occasionally report that it is "buzzing." The solenoid coil for the reversing valve is typically to blame for this. Most of the time, it's a low voltage gadget (24 volts), and some of them are just louder than others. This is often normal.131. When bending soft copper to any radius, it is important to keep in mind that the cross sectional area must not be drastically decreased.
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tech a says that during a brake inspection, it is good practice to carefully peel back the dust boot from a wheel cylinder and see if there is any brake fluid behind the dust boot. a little brake fluid is normal. tech b says that during a brake inspection, it is good practice to carefully peel back the dust boot from a wheel cylinder and see if there is any brake fluid behind the dust boot. if there is, the wheel cylinder is starting to leak and should be replaced. who is correct
According to the question of wheel cylinder, tech b is correct that says during a brake inspection.
What is wheel cylinder?
A wheel cylinder is a component of a drum brake system in a vehicle. It is a cylinder that contains two pistons, one at each end, which press against the brake shoes when the brakes are applied. The pistons are connected to the brake pedal by a hydraulic system, and when the pedal is pressed down, hydraulic pressure is sent to the wheel cylinder, forcing the pistons outward and against the brake shoes. This action causes the brake shoes to press against the drum, slowing the vehicle down. Wheel cylinders are important in the proper functioning of a drum brake system, as they are responsible for the mechanical action of the braking process. They must be maintained regularly to ensure that they are functioning correctly and do not leak, as this can cause the brakes to fail.
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1.4-1 a hollow circular post abc (see figure) supports a load p1 51700 lb acting at the top. a second load p2 is uniformly distributed around the cap plate at b. the diameters and thicknesses of the upper and lower parts of the post are dab 51.25 in., tab 5 0.5 in., dbc 5 2.25 in., and tbc 5 0.375 in., respectively. (a) calculate the normal stress s ab in the upper part of the post. (b) if you want the lower part of the post to have the same compressive stress as the upper part, what should be the required magnitude of load p2?
A. The normal stress s ab in the upper part of the post is 1443 psi.
B. The required magnitude of load p2 is 1488 lbs.
What is stress?The force acting across a material's entire surface area is referred to as stress. Strain is the result of stress on the body. Deforming forces are those that alter the structure of an object. An object is deforested when we apply a deforming force to it. There will be an opposing force created inside the object called the restoring force that will work to restore the object to its original size and shape.
Newton's third law states that the restoring force will be equal in magnitude and directed in the opposite direction from the applied deforming force if there is no permanent change in the body's configuration. Therefore, stress is a measurement of the restoring force produced per unit area of the material.
Part A:
[tex]$$\begin{aligned}& \mathrm{P}_1=1700 \quad \mathrm{~d}_{\mathrm{AB}}=1.25 \quad \mathrm{t}_{\mathrm{AB}}=0.5 \\& \mathrm{~d}_{\mathrm{BC}}=2.25 \quad \mathrm{t}_{\mathrm{BC}}=0.375 \\& \mathrm{~A}_{\mathrm{AB}}=\frac{\pi\left[\mathrm{d}_{\mathrm{AB}}{ }^2-\left(\mathrm{d}_{\mathrm{AB}}-2 \mathrm{t}_{\mathrm{AB}}\right)^2\right]}{4} \\\\\end{aligned}$$[/tex]
[tex]\begin{aligned}\\& \mathrm{~A}_{\mathrm{AB}}=1.178 \quad \sigma_{\mathrm{AB}}=\frac{\mathrm{P}_1}{\mathrm{~A}_{\mathrm{AB}}} \\& \sigma_{\mathrm{AB}}=1443 \mathrm{psi} \quad \leftarrow\end{aligned}$$[/tex]
the normal stress s ab in the upper part of the post is 1443 psi.
Part B
[tex]\begin{aligned}\\& \mathrm{A}_{\mathrm{BC}}=\frac{\pi\left[\mathrm{d}_{\mathrm{BC}}^2-\left(\mathrm{d}_{\mathrm{BC}}-2 \mathrm{t}_{\mathrm{BC}}\right)^2\right]}{4} \\& \mathrm{~A}_{\mathrm{BC}}=2.209 \quad \begin{array}{c}\mathrm{P}_2=\sigma_{\mathrm{AB}} \mathrm{A}_{\mathrm{BC}}-\mathrm{P}_1 \\\mathrm{P}_2=1488 \mathrm{lbs} \quad \leftarrow \quad \end{array}\\\end{aligned}[/tex]
The required magnitude of load p2 is 1488 lbs.
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you can ping a computer to which you're trying to transfer files via ftp, but you can't communicate by using ftp.
7- Application Layer.
What OSI layer are FTP and SMTP located in?
The File Transfer (FTP), Website Domain Service (DNS), File Transfer Protocol (HTTP), and Simple Mail Transmission Protocol are just a few of the many application-layer protocols that are well-known to average Internet users (SMTP).
FTP, SMTP, and SMTP are what?The acronyms for HTTP, FTP, and SMTP stand for Hypertext Transfer Protocol ( http, File Transfer Protocol, and Simple Mail Transfer Protocol, respectively.All three are essential components of the modern internet and are used to transmit data via computer networks.
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Layer of Application can ping a computer to which you're trying to transfer files via ftp.
Which OSI layer contain FTP and SMTP?A few of the numerous application-layer protocols that are well-known to common Internet users include the File Transfer Protocol (FTP), Website Domain Service (DNS), File Transfer Protocol (HTTP), and Simple Mail Transmission Protocol (SMTP).
What are FTP, SMTP, and SMTP?Hypertext Transfer Protocol (http), File Transfer Protocol (FTP), and Simple Mail Transfer Protocol (SMTP), respectively, are the acronyms for these protocols. The transmission of data over computer networks is made possible by all three of these essential components of the contemporary internet.
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the forked rod is supported by a collar at a, a thrust bearing at b, and a cable cd. determine the tension within cable cd, and the x, y, z components of reaction at supports a and b. the supports at a and b are in proper alignment and exert only force reactions on the rod
The equilibrium condition of forces and moment, which states that the total of the moment and forces is equal to zero, was applied in the aforementioned solution.
the wire is tense Tcd = 114.8912 N
Response forces
Ay = 60 N and Az = 0 at A
Bx = -20 N at B
By = -20 N\sBz = 0
When Newton's first law is true, the thing is in its equilibrium condition. When all external forces acting on an item (including moments) are balanced, that object is said to be in equilibrium in the reference coordinate system. This indicates that all external forces and moments acting on this item have a net effect of zero.
Newton's first law states that an object at rest will remain at rest, and an object in motion won't alter its velocity while the equilibrium condition is met.
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from the adversary types given in the shape of a triangle in the powerpoint slides of the module, you can guess that the administrators and subject matter experts are
By organizing your PowerPoint slides into sections, you can sort them more quickly. Click the triangle next to the section names to collapse a segment.
How do I make an Equilateral Triangle in PowerPoint 2010 that is perfect?
Three of the sides of an equilateral triangle coincide. True equilateral triangles are easy to make with PowerPoint. Just remember to hold down the SHIFT key when you draw your right triangle. The triangle's sides will all remain the same as a result of this. Pick the Right Triangle under Insert -> Shapes. The SHIFT key will maintain the ratio of each side when you draw a triangle on the slide.
What additional triangles can we make in PowerPoint?
This question has a straightforward solution. The shape points are editable, and the characteristics that the intended triangle requires.
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The X. 500 standard defines a protocol for a client application to access an X. 500 directory known as which of the following options?
a. DIB
b. DAP
c. DIT
d. LDAP
Answer:
Option B is the correct answer for the above question.
Explanation:
DAP is a protocol technology that is used for the client and discovered by X.500 in 1988. Its use for the client host on the network. The operation of this protocol is --- Read, Bind, Search, List, Compare, Add and Modify the data.
The above question asked about the protocol which is searched by X.500 and used for the clients. So the answer is DAP which is stated by Option B hence this option is correct while other is not because--
Option 'A' states about DIB which is not a protocol. It is used by X.500.
Option C states about DIT which is not used by X.500.
Option D states about LDAP which can be used for client or server.
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The X. 500 standard defines a protocol for a client application to access an X. 500 directory known as DAP .
Option B is correct.
DAP is a client-oriented protocol technology that was discovered in 1988 by X.500. Its application to the network's client host. This protocol reads, binds, searches, lists, compares, adds, and modifies data.
The protocol that X.500 looks up and uses for clients was the subject of the aforementioned question. Therefore, Option B's answer, DAP, is correct, whereas Option 'A' is not because Option 'A' refers to DIB, which is not a protocol. X.500 makes use of this.
Option C mentions DIT, which X.500 does not employ.
Option D describes LDAP as a client or server protocol.
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A drawing requires a welder to make a 1/4"" fillet weld 16"" long. What is the volume of weld metal required to make this weld?
Making sure that the length of the weld is also given in centimetres, multiply the length of the weld by the area to determine the volume.
How much welding metal is needed to make this weld?Making sure that the length is also given in centimetres, multiply the weld's length by its area to determine the volume. In this example, the volume is 507 cubic centimetres per metre (cu. cm/m), which is how volume is typically expressed.
Add the weld strength and size together. Subtract the above product from the maximum permitted tensile stress. To determine how long the weld joint is, multiply the result by 0.707.
By multiplying the parcel's length, width, and height (all expressed in centimetres) and dividing the result by 5000, volumetric weight is most frequently calculated (some carriers use a divisor of 4000).
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List three functions that the frame analysis tool provides and describe how they relate to aerospace design.
a. I can check the gravity of the frame and this relates to aerospace because you need to know if the aircraft will be able to fly without gravity pulling down on it too much
b. The force shows how much force is on a part of the design
c. The frame analysis shows which parts of an airplane has more pressure on it then another
There are basically three types of aerospace design modern framing: framing with a balloon, platform, and semi-balloon. Vertical load-bearing framing studs run continuously from the foundation to the roof with long lumber lengths.
What is the design of aerospace?Aircraft, spacecraft, propulsion systems, satellites, missiles, and aerospace products, components, and subassemblies, as well as the design and testing thereof, are all examples of this.
What are five roles that aerospace engineers play?Aerospace engineers create and test spacecraft, aircraft, missiles, and satellites. They also make propulsion systems, look at how aerodynamic aircraft are, and make sure that all blueprints, prototypes, and products meet customer needs, environmental issues, and engineering standards.
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Instantaneous power output of a single phase 60 Hz generator is constant under following condition(s); a. The load draws only real power b. The load draws only reactive power c. The load draws both real and reactive power d. The load is balanced e. None of the above
The power used in a DC circuit is calculated by multiplying the DC voltage by the DC current, expressed in watts. However, we must determine the power consumed in a different way for AC circuits containing reactive components.
Since electrical power is the "rate" at which energy is expended in a circuit, every electrical and electronic component and device has a safe operating range for electrical power. a 20-watt amplifier or a 1/4-watt resistor, for instance. Both DC and AC quantities of electrical power are capable of time variation. Instantaneous power, which is determined by the well-known relationship, is the amount of power in a circuit at any given moment.
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a refrigerator with a cop of 3.0 accepts heat at a rate of 10 kw. determine the rate of heat rejection. multiple choice question. 40 kw 3.33 kw
The correct answer is A refrigerator's COPmax is equal to Tlow/ (Thigh - Tlow). 270/(300 - 270) = COPmax = Tlow/(Thigh - Tlow) = 9.
The usable heating or cooling delivered to work (energy) needed ratio, also known as the coefficient of performance, or COP, of a heat pump, refrigerator, or air conditioning system. Higher efficiency, less energy (power) usage, and thus reduced operational costs are all related to higher COPs. What is the relationship between the C.O.P. of a heat pump and the efficiency of a heat engine? A) E equals (C.O.P.) B) E equals 1 / (C.O.P.) Considering that E = W / Q, the Carnot engine's equivalent is (T2 - T1) / T2. The temperature of the environment to which the freezer rejects heat is if the internal temperature is less than 200C.
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Gae from the combution chamber were o hot that pipe around the nozzle carried coolant to keep the nozzle from melting. True or fale
TRUE . In outer space, the shuttle could generate more than half a million pounds of thrust.Pipes around the nozzle carried coolant that kept the nozzle from melting.
What exhaust system modifies the thrust direction to modify the direction of a rocket?The rocket's exhaust nozzle can rotate from to side in a gimbaled propulsion system.The thrust's direction changes in relation to the rocket's center of gravity when the nozzle is moved.
How can rocket motors avoid melting?The most popular method for preventing a liquid-fueled rocket engine form melting is regenerative cooling.In this procedure, the propellant passes partially or completely through the nozzle and combustion chamber walls before passing through the injector and entering the chamber.
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An air outlet that supplies conditioned air is called a
A. ventilator.
B. diffuser.
C. louver.
D. return grille.
A diffuser is a type of air outlet that releases conditioned air.
What is meant by diffuser?A compressor or pump's diffuser is an essential component. Its goal is to raise pressure by slowing the flow as it leaves the impeller. The diffuser can be easily represented as a nonrotating channel with increasing flow area in the flow direction. Here is a brief explanation of what a diffuser does: A diffuser, which is typically an ultrasonic device driven by electricity and hooked into a wall socket, creates a fine, cold mist out of clean water and only the purest essential oils, which is then released into the air for us to breathe and feel through aroma. A diffuser is an apparatus that lowers a fluid's pressure by slowing it down. When a flow is subsonic or supersonic, the cross sectional area of a nozzle increases in the flow direction.To learn more about diffuser, refer to:
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Which of the following accurately explains the difference between kanban and CONWIP (constant work-in-process) as methods for controlling WIP?
A - Kanban moves work downstream as it is completed. CONWIP each workstation controls their own WIP.
B - Kanban signals work to move when the next work station is ready. In CONWIP a unit enters the system only when a unit exits.
C - Kanban cards flag when a bin is empty. CONWIP uses andon lights (green, yellow, red) to signal supply status.
The correct answer is A - Kanban moves work downstream as it is completed. CONWIP each workstation controls their own WIP.
Push: When a task is finished, it is forwarded to the following action. Pull: The next action draws from the previous. The following are the top five challenges to implementing lean in small businesses: the lack of managerial time needed to enable lean. not being aware of the potential advantages of using lean. underestimating the attitudes and reluctance to change of employees.These basic pieces all have two qualities: speed and simplicity. For a lean production system, the following four product design components are crucial: 1. Common components. In other words, a pull approach draws a client toward a product, whereas a push strategy just pushes a product at a customer. Pull strategy focuses on building a long-term relationship with the company, whereas push strategy is a short technique to get a consumer from awareness to purchase.
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The composite plate is made from both steel (A) and brass (B) segments. Take ?st = 7.85 Mg/m3 and ?br = 8.74 Mg/m3. Suppose that L = 160 mm . (Figure 1)
Determine the mass. Determine location (x¯, y¯, z¯) of its mass center G.
Mass of composite plate is 8.092 Mg and location (x, y, z) of its mass center G is:
x = 76 mm
y = 0
z = 0
What is Mass of a composite plate?The mass of the composite plate can be determined by finding the mass of each component (steel and brass) and then adding them together.
Since we know the densities of both materials (st = 7.85 Mg/m3 and br = 8.74 Mg/m3), we can calculate the mass of each component.
For steel, we multiply the density by the area:
Mass of steel = (0.2)(7.85) = 1.57 Mg
For brass, we multiply the density by the area:
Mass of brass = (0.8)(8.74) = 6.992 Mg
Now add the two masses together:
Mass = A.st + B.br = 1.57 + 6.992 = 8.092 Mg
The location of the mass center (G) can then be determined using the formula:
x¯ = (A.Axbar) + (B.Bxbar) = (0.2)(100) + (0.8)(60) = 76 mm
y¯ = (A.Aybar) + (B.Bybar) = (0.2)(0) + (0.8)(0) = 0 mm
z¯ = (A.Azbar) + (B.Bzbar) = (0.2)(0) + (0.8)(0) = 0 mm
These values give us the location of the mass center G.
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When directed towards facility and basing, the best choice may be to place the engineering staff function under the _______.
When directed towards facility and basing, the best choice may be to place the engineering staff function under the facilities manager.
What is engineering?
Engineering is a profession that uses mathematics, science, technology, and problem-solving skills to design and create products, processes, and services that meet the needs of society. It encompasses a wide range of disciplines, including civil, mechanical, chemical, electrical, and software engineering. Engineers must have an understanding of the physical and mathematical principles that govern the construction and operation of systems, as well as the ability to think logically and creatively to develop solutions to complex problems. Engineering is essential in designing and constructing infrastructure, such as roads, bridges, and buildings, as well as in developing new products and technologies. The field of engineering also plays a crucial role in the protection of our environment by developing renewable energy sources and improving the efficiency of existing systems.
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