The power transferred to the fluid due to fluid normal stresses is 3.2406kW.
What is power?
In science and engineering, the term "power" refers to the rate at which work is completed or energy is delivered. It can also be expressed as the ratio of work completed (W) to time (t), or W/t. Power can alternatively be defined as the result of the force used to move an object multiplied by the speed of the object moving in the direction of the force. For example, foot-pounds per minute, joules per second (or watts), and ergs per second are all examples of work-per-unit-time units of power.
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specify a quench rate necessary to ensure a hardness of at least rockwell c40 in a 4140 steel. (b) specify a quench rate necessary to ensure a hardness of no more than rockwell c40 in the same alloy
Water cooling was used to accomplish the greatest quenching rate (58.9 °C/s), and cooling air was used to control temperature and pressure for the remaining rates.
During solution treatment, the quenching rate of Al-Mg-Si alloys is a crucial metric for the automobile industry. Al-Mg-Si sheets' microstructures, mechanical characteristics, and response to paint bake-hardening were examined in this work in relation to various quenching rates. When a sample is quenched at a rate of 0.01 °C/s, large dimples appear on the fracture surface.
The dimples shrank when the quenching rate was raised to 58.9 °C/s. Quenching speeds greater than 1.9 °C/s had a slight impact on the recrystallized grains and texturing. As a result, samples with higher r values were obtained with slower quenching rates. Furthermore, in samples with a quick quenching rate, only the Al(FeMn)SiCr insoluble phases were seen. The precipitation kinetics improved due to sufficient solute atoms and vacancies.
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technician a says that the front toe determines the thrust angle. technician b says that a tolerance adjustment involves removing and reinstalling subframe bolts. which technician is correct?
Answer:
Technician B
Explanation:
a floor can be dented by the application of too much stress. who is more likely to dent your floor: a 50 kg woman in high-heeled shoes (assume a 6.0-mm-diameter heel) standing on one heel or a 5000 kg african elephant (40-cm-diameter foot pads) standing on all four legs?
The correct answer will be: (A) 24955495.07 N/m² (B) 97482.40 N/m². Assuming the high heels carry half of the body weight, each high heel bears a quarter of the weight.
This demonstrates that the stress under the heels of high-heel shoes is roughly 60 times greater than that under flat shoes. A normal adult elephant weighs around 5000 kg and has feet that are around in area. The pressure an elephant's foot puts on the ground is significantly less than what high heel shoes put on the ground.
The values are as follows:
mass,
m = 50 kg
diameter
= 0.50 cm
then,
radius,
r = 0.25 cm
= 0.0025 m
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14. Current flow between the main terminals of a triac is
a. In one direction only
b. In either direction
c. Constant at all times
d. Less than the gate current flow value
16. A triac can serve as the switching device for a programmable logic controller AC output module. (True/False)
17. Answer the following with reference to the triac variable AC control circuit shown in Figure 9-27.
a. The control logic controls the which the triac is switched on.
b. The output waveform is still AC, but the adjustable. on the AC waveform at current value is
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in which type of situation would firefighters use a bill of lading or manifest to determine what type of flammable material is involved?
In the event of a bulk shipping fire, firefighters would consult a manifest or bill of
What does bulk transportation entail?(bulk traenspt) Noun. The movement of massive amounts of cargo or goods through rail, ship, or truck. However, most cells do have some sort of bulk transport system. These methods enable cells to selectively "grab" particular particles out of the extracellular fluid, take up nutrients from the environment, or release signaling chemicals to interact with nearby cells. Vesicles, which you might imagine as tiny membrane sacs that can fuse with the cell membrane, are used to transport larger substances or huge packages of small molecules through the cell membrane, also known as the plasma membrane, during bulk transport. A lipid bilayer makes up cell membranes.
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after installation of a rebuilt hydraulic hand pump, it is found that the handle cannot be moved in the pumping direction (pressure stroke). the most likely cause is an incorrectly installed
The most likely cause is an incorrect installation is Hand pump out-port check valve
What is a hydraulic hand pump?Hydraulic hand pumps combine pressure and flow to produce hydraulic energy, using human effort as the input. Under the straightforward premise that the handle gives an internal piston leverage, hydraulic fluid is provided under pressure that is directly applied from manual effort. The cylinder port is then forced to receive hydraulic fluid by the piston. The most typical fluids are water and hydraulic fluid, however other pressure media may also be utilized.The pressure created by the hydraulic energy is used to test, modify, and calibrate various measuring tools and instruments. When a precise level of tuning is demanded by the user, hydraulic hand pumps are frequently used to load and test machinery components. They are also utilized in lifting and lowering big things with materials handling equipment, which similarly calls for precise control over the objects' movements.
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the tank is to be attached at the top using 4 mm diameter steel bolts. what is the minimum number of bolts needed if the tensile stress in each bolt is not to exceed 40 mpa
Bolts are placed around the pressure vessel's perimeter in a circle with a diameter of Dcircle = 800 mm. The bolts can withstand 245 MPa of tension stress.
It is difficult to distinguish between a bolt and a screw. According to Machinery's Handbook, the academic distinction lies in their intended design: bolts are made to fit through an unthreaded hole in a component and secure it with the help of a nut, though they can also be used to tighten into threaded components like screw or tapped housings without a nut.
In contrast, screws are used in components that already have an internal thread or to create an internal thread within them. The terms screw and bolt are frequently used by different people, so this definition permits ambiguity in the description of a fastener depending on the application it is actually used for.
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(fill in the blank) is the process of designing a product for efficient production at the highest level of quality.
DFM is the process of designing a product for efficient production at the highest level of quality.
What is DFM explain?Design for Manufacturing (DFM) is the practice of creating parts, components, or entire products with the intention of constructing them more easily and at a reduced cost. By streamlining, improving, and perfecting the product design, this is accomplished.The process of designing a product for the most effective production at the greatest degree of quality is known as DFM. Designing for the Environment (DfE) refers to the explicit consideration of environmental issues throughout the design of products, services, and processes, and includes techniques like designing for recycling and disassembly.Designing for vertical assembly, in which components are put together straight down, is an illustration of the Design for Manufacturing principle.To learn more about DFM refer to:
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water flows in a pipeline composed of 75-mm and 150-mm pipe. calculate the mean velocity in the 75-mm pipe when that in the 150-mm pipe is 2:5 m
In the mesh created, you should have 1000 elements and 1111 nodes. How many values will Fluent have to determine directly by solving a system of algebraic equations? Please input answers as an integer (eg. 1, or 80, or 150, etc.).
Whenever 1000 elements and 1111 nodes are created, the Fluent will have a total of 20 values.
What are algebraic equations?An algebraic equation, also known as a polynomial equation, is a mathematical equation of the form P=0, where P is a polynomial with coefficients in some field, most commonly the field of rational numbers.
The number of elements along the x direction is m, and the number of elements along the y direction is n.
So,
m × n = 1000 ( Elements)
m × n + m + n + 1 = 1111 (Nodes)
m + n = 1000
If m = 100 then n = 10. These values satisfy both the equations.
Each element will now have one velocity, pressure, or temperature component. So, for each case, there will be 1000 algebraic simultaneous equations.
Thus, 20 values will be the answer.
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determine the tension in cable bd. (you must provide an answer before moving to the next part.) the tension in cable bd is
The tension in cable bd is = 357.807 N.
Moreover, Tension is the force exerted by a rope, string, cable, or similar object on one or more objects. Anything pulled, suspended, supported, or swung from a rope, string, cable, etc. is subject to a tensile force. Like all forces, tension can accelerate objects or cause them to deform.
The tension formula is formulated as. T = mg + ma. Where, T = tension (N or kg-m/s2) g = gravitational acceleration (9.8 m/s2)
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In the mesh created, you should have 1000 elements and 1111 nodes. How many values will Fluent have to determine directly by solving a system of algebraic equations? Please input answers as an integer (eg. 1, or 80, or 150, etc.)
The number of values that the Fluent will have when 1000 elements and 1111 nodes are created is 20
What will the number of values be?Number of elements along x direction is m and along y direction is n.
So, m × n = 1000 ( Elements)
And m × n + m + n + 1 = 1111 (Nodes)
Or, m + n = 1000
If m = 100 then n = 10. These values satisfy both the equations.
Now, for each element there will be one velocity component, pressure or temperature. So, 1000 algebraic simultaneous equations will be there for each case.
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which component in a truck cooling system requires that the coolant has some lubricating properties?
Answer:
The internal combustion engine has explosions inside of it regularly. Think about when you’re stepping on the gas pedal to accelerate quickly. How is the engine creating all that power for your vehicle to move faster?
There are an estimated 4,000 explosions taking place inside your engine every minute if you have a 4-cylinder engine and traveling at 50 mph. This is the process where the air and fuel mixture is ignited by the spark plugs to generate the power needed to move the wheels underneath your vehicle.
When you have so many explosions taking place this quickly, there is a lot of heat generated in the engine. These high temperatures could permanently damage the engine within minutes. The only thing which stops this from happening is the car’s cooling system.
The cooling system lowers the temperatures in the engine so that it doesn’t suffer any damage. Instead, it keeps the engine cooled enough to where it can keep operating smoothly.
Do not confuse the cooling system with the air conditioner because they’re actually two different systems in the car. The cooling system focuses specifically on cooling the engine, while the air conditioner focuses on cooling the people inside the vehicle.
If you had to choose which one was more important, then it would have to be the cooling system. You could possibly survive without air conditioning, but you cannot survive with a cooling system for your engine. If your cooling system doesn’t work, then your engine will die quickly.
a food refrigerator is to provide a 15,000-kj/h cooling effect while rejecting 22400 kj/h of heat. calculate the cop of this refrigerator
The COP has a value of about 3.14. Lower levels of COP will be produced by higher warm temperature space than lower cold temperature space.
What does a freezer's COP stand for?A deep freeze unit will have a coefficient of performance (COP) that is closer to 1.0 than a residential refrigerator, which may have a COP of roughly 2.5. Lower levels of COP will be produced by higher warm temperature space than lower cold temperature space.The formula COP = ((T2)/(T2 - T1)) is used to compute the coefficient of performance, also referred to as COP. T2 stands for the hot temperature and T1 for the cold temperature. The same applies to these: COP = heat ejected / (heat ejected - heat provided)COP = 22,000 / (22,000 - 15,000) = 3.14 when the formula is changed.Consequently, the COP has a value of about 3.14.To learn more about COP refer to:
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Solve: cosine (x + pi) = one-half over the interval left-bracket startfraction pi over 2 endfraction, pi right-bracket. Startfraction pi over 2 endfraction startfraction 2 pi over 3 endfraction startfraction 3 pi over 4 endfraction startfraction 5 pi over 6 endfraction.
Answer:
2pi/3 - edge
Explanation:
trust
Answer:
2pi/3
Explanation:
To cool a given room it is necessary to supply 4ft^3/s of air through a 8-in diameter pipe. approximately how long is the entrance length of the pipe
The pipe's entrance measures 17.7 feet.
The axial distance required to arrive at a value of Nu(x) that is 1.05 times the fully defines the thermal entry length Lth.
What is the entrance length of the pipe?Entrance length is the measurement of the length of the entry zone, which is the space immediately after the pipe entrance.The dimensionless Reynolds number, Prandtl number, and pipe diameter all affect the thermal entrance length. To determine thermal entry length, the Prandtl number modifies the hydrodynamic entrance length.When viscosity effects are entirely present and pipe entry effects are not taken into account, a pipe flow is said to be fully developed. Consider a pipe flow that is incompressible. Pressure. The length of the hydrodynamic entry LHY is defined, a little haphazardly.To learn more about entrance length of the pipe refer to:
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a steel is known to contain 93.8 wt% fe, 6.0 wt% ni, and 0.2 wt% c. (a) what is the approximate eutectoid temperature of this alloy?
The eutectoid temperature of this alloy at 6.1 weight percent is approximately 650°C or 1,200°F.
What is meant by eutectoid point?a spot on a phase diagram that shows an alloy's eutectoid composition and eutectoid temperature.Additionally, the eutectoid point identifies the spot where three solid phases coexist. This point implies a temperature of 1333 F and a carbon concentration of 0.8% in the iron-carbon phase diagram.when a single solid phase separates into two distinct solid phases as it cools.At a specific temperature and composition, eutectoid transformations occur and typically result in a unique structure.Information given:
93.8 wt% Fe, 6.0 wt% Ni, and 0.2 wt% C make up the steel alloy.
Additionally, we also presum that Ni has been added but that the limits of positions with other phases have not changed.
According to the information above, the eutectoid temperature of this alloy at 6.1 weight percent is approximately 650°C or 1,200°F.
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tech a says that semi-floating wrist pins can be pressed into the rods. tech b says that a rod heater can be used to install semi-floating wrist pins. who is correct?
The correct answer is both the tech are right that a rod heater can be used to install semi-floating wrist pins and semi-floating wrist pins can be pressed into the rods.
After some kind of friction secures the pin to the connecting, the piston can freely pivot inside the bosses of the piston pin. The most common method of attaching the semi-floating wrist pins to the rod is by press-fitting. The little end of the connecting rod is heated, which expands the metal and the diameter of the hole.If you're using high-level forced induction, nitrous oxide injection, high rpm or heavy sustained loading on your performance engine, upgraded semi-floating wrist pins represent the insurance deal of the century. Wall thickness is a critical factor based on application.
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quizzlet you are on a two-way street, stopped at an intersection. can you legally turn left on a red light into a one-way street?
Unless prohibited, you can legally turn left on a red light into a one-way street if traffic allows.
State some traffic rules?
Always use a seatbelt.Avoid distractions.Do not exceed the speed limit.Regularly service your car.Follow traffic signals.Maintain lane discipline.Be cautious in inclement weather.Maintain a safe distance.Slow down at road junctions, intersections, pedestrian crossings, and road corners, and wait until you are certain of a clear path ahead. If you are approaching the main road where traffic is not controlled, give way to vehicles passing on your right. Hand signals are required at times. These are some of the traffic rules.
Hence we can say that Unless prohibited, you can legally turn left on a red light into a one-way street if traffic allows.
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after servicing the air filter on an etc equipped vehicle, the technician has forgotten to connect the throttle motor wiring. what will happen when the vehicle is started?
If the technicians has forgotten to connect the throttle motor, then when the vehicle is started, the engine will start but not accelerate, idle speed between 1200 and 1600 RMP.
A throttle is a device used to control fluid flow through restriction or barrier. The limiting of incoming gases (through the use of a throttle) can increase or decrease an engine's output, but usually decreases it. Informally, the term "throttle" now denotes any device used to control an engine's power or speed, such as the accelerator pedal on an automobile.
In the context of aviation, what is frequently referred to as a throttle is also known as a thrust lever, particularly for aircraft powered by jet engines. The regulator is the term for the valve that regulates steam in a steam locomotive.
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if you were a landscape architect, what design choices would you use to reduce the urban island effect if you were designing a new shopping center?
By shading building surfaces, reflecting solar radiation, and releasing moisture into the air, trees, green roofs, and vegetation can help lessen the effects of urban heat islands.
How do trees lower urban heat island?The most obvious factor is shade first. Our skin and the ground are shielded from the sun's beams by leafy canopies. This is crucial in urban areas because man-made surfaces like asphalt, concrete structures, metal from vehicles and buses, and other artificial settings, absorb heat more quickly than their natural counterparts.Five basic strategies are being used by numerous localities to mitigate urban heat islands: Increasing the amount of trees and vegetation, adding green roofs, using cool roofing—mostly reflecting ones, adding cool pavements (either reflective or permeable), and implementing smart growth strategies are all examples of ways to reduce heat.By shading building surfaces, reflecting solar radiation, and releasing moisture into the air, trees, green roofs, and vegetation can help lessen the effects of urban heat islands.To learn more about Urban heat islands refer to:
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an aircraft component is fabricated from an aluminum alloy that has a plane strain fracture toughness of . it has been determined that fracture results at a stress of
The correct answer is Plain strain fracture toughness for aluminum alloy.
The plane strain fracture toughness is 27.5 MPa m 1 2 . KIc values obtained from specimens of different crack plane orientations were found to remain constant, indicating the lack of anisotropy in the material.Features of strength and fracture in aluminum alloys. Since many second phase particles are contained, the fracture of aluminum alloys is the ductile fracture of the dimple formation type.
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which material/beam tested showed the least deflection? a. aluminum beam a (0.5 x 0.5) b. aluminum beam b (0.25 x 0.5) c. steel beam d (0.5 x 0.5) d. aluminum beam c (0.5 x 0.25)
Option c is correct. The steel beam d (0.5 x 0.5) tested showed the least deflection. Beam deflection refers to the state in which a beam has changed from its initial shape as a result of a force, load, or weight.
Beam deflection refers to the state in which a beam has changed from its initial shape as a result of a force, load, or weight. Obtaining equations that allow us to accurately calculate beam deflections in a variety of real-world situations is one of the most significant uses of beam deflection. Analysis of statically indeterminate beams also takes into account deflections.
In terms of structural engineering, deflection is the movement of a beam or node from its initial position as a result of loads and forces acting on the member. It is also referred to as displacement and can result from externally applied loads as well as from the structure's own weight and the force of gravity that applies to it.
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find the design stage uncertainty in the measurement when measuring a relatively higher pressure of 303 kpa
Uncertainty analysis at the design stage refers to a preliminary analysis carried out before the measurement.
Explain about the design stage uncertainty?
The causes of error that affect a measurement cannot be provided by design stage uncertainty analysis, but it can provide information and evaluate methods for instrument selection.
The precision and accuracy of the measuring device, as well as any other elements that can impair the experimenter's capacity to make the measurement, serve to restrict the uncertainty of a single measurement, and it is the experimenter's responsibility to calculate the uncertainty.
Zero-Order Uncertainty is a prediction of the anticipated uncertainty resulting from reading the data (interpretation error or quantization error). This fault is thought to be smaller than the instrumentation error.
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Determine the line load for the water heater in this residence. Water heater (28 kVA)
The line load for the water heater in this residence is 117 A.
What is the current concept?Electric current is the flow of electric charges caused by a potential difference. Electric current is the movement of electric charges, such as electrons, that occurs inside different materials, due to the application of a difference in electric potential.
The I is calculated as follows:I = P/E
I = 28,000VA/240V
I=28,000A/240
I = 116.67A = 117A
Therefore, the value for I is calculated as 117A.
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A cylinder with a movable piston contains a sample of gas having a volume of 6. 0 liters at 293 k and 1. 0 atmosphere. What is the volume of the sample after the gas is heated to 303 k, while the pressure is held at 1. 0 atmosphere?.
After the gas is heated to 303 K, the sample's volume is 6.2 L.
Option (2) 6.2 L is the right response to the query.
From the aforementioned query, the following information was discovered:
6 L is the initial volume (V1).
(T1) The starting temperature is 293 K.
303 K is the final temperature (T2).
constant pressure
Complete volume (V2) =?
The final gas volume can be calculated using the Charles' law equation as follows:
Cross multiply 6 x 303 x 293 x V2 x 293 x V2 = 1818
293 V2 divided by both sides equals 6.2 L.
As a result, when the gas is heated to 303 K, the sample's volume is 6.2 L.
Option (2) 6.2 L is the right response to the query.
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what is the correct term for a flue stack when it is constructed as a part of the building or as a freestanding structure?
An example of a chimney is a flue-gas stack, which is often referred to as a smoke stack, chimney stack, or simply a stack.
Where on the chimney is the stack located?The brick or stone portion of a chimney that is located above a building's roof is called a chimney stack.The stack is the protruding portion, while the chimney is the entire structure (above the roof, usually).A chimney is a type of architectural ventilation system built of masonry, clay, or metal that separates hot, hazardous exhaust gases or smoke from places where people live. These gases or smoke are produced by a boiler, stove, furnace, fireplace, or other similar device.An example of a chimney is a flue-gas stack, which is often referred to as a smoke stack, chimney stack, or simply a stack.To learn more about Flue-gas stack refer to:
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technician a says that hydrogen exists by itself in nature. technician b says that hydrogen has better specific energy than fossil fuels. which technician is correct?
Technician b says that hydrogen has better specific energy than fossil fuels. so technician b is correct.
Does hydrogen have the highest specific energy?Although hydrogen has the highest energy density per mass of any fuel, it has the lowest energy density per unit volume due to its low ambient temperature density, necessitating the development of new storage technologies with the potential for higher energy density.Hydrogen is utilized as a rocket fuel and in fuel cells to generate power on some spacecraft because it is beneficial as an energy source or fuel due to its high energy content per unit of weight.Since hydrogen has a significantly higher energy content than fossil fuels, less of it is required to carry out any given task.To learn more about energy refer to:
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In order to test the reverse route back towards the original host, which of the following will you use? A Standard ping B Extended ping С Extended route O D Standard traceroute
The function that you will use in order to test the reverse route back toward the original host is known as Extended ping. Thus, the correct option for this question is B.
What is Ping and traceroute for?Ping and traceroute are the common commands you can effectively utilize in order to troubleshoot network problems. Ping is a simple command that can typically test the reachability of a device on the network. While traceroute is a command you use to 'trace' the route that a packet takes when traveling to its destination.
Extended ping permits a router's ping command to use The router's LAN IP address from within the subnet, fully testing the route back to the subnet. A standard ping often does not test the reverse route that you need to back toward the original host.
Therefore, the function that you will use in order to test the reverse route back toward the original host is known as Extended ping. Thus, the correct option for this question is B.
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From the list of problems below, check all that are known to be NP-complete. You do not need to justify your answer. (Set cover) Given a graphGand an integerk, find a set of verticesUof size at mostksuch that every edge is adjacent to at least one vertex inU. (Max SAT) Given a CNF formula and an integer g, find a truth assignment that satisfies at leastgclauses. (Linear programming) Given am×nmatrixA, and vectorsb∈Rm,c∈Rn, find the solution of maxcTx s.t. Ax≤bx≥0(MST) Given an undirected, weighted graphG=(V,E)find a minimum spanning tree ofG, or outputs FALSE if such tree does not exist.
Any computing issue that falls within the category of NP-complete problem has yet to find an effective solution algorithm.
Which problems are NP-complete?Any of a family of computer problems that have no effective solution algorithm are referred to as NP-complete issues. The traveling salesman problem, satisfiability issues, and graph-covering issues are only a few examples of the significant computer science issues that fall under this category.The difficulty of NP and NP-Complete issues is equal. If a problem is included in both NP and NP-Hard Problems, it is said to be NP-Complete. This statement, "This problem can change into an NP-complete problem on a non-deterministic Turing machine," is untrue for the obvious reason that while any problem in P is also a problem in NP, no problem in P is an NP-complete problem (unless P=NP, of course). If P is an NP problem and all NP problems convert into NP-complete problems, then P must also undergo this transformation.To learn more about NP-complete problem refer to:
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