Equipotential maps are graphical representations of the electric potential in a region, with lines (equipotential lines) connecting points with the same electric potential. To determine the location of the strongest electric field on an equipotential map, look for the following features:
1. Equipotential lines closely spaced together: The electric field is strongest where the equipotential lines are closest together because the potential difference between these lines is large, resulting in a higher electric field strength.
2. Sharp bends in equipotential lines: These bends indicate a concentrated electric field, which means the field is stronger in that region.
The electric field is strongest where you expect it to be, typically near charged objects or boundaries. It's because the charges create the electric field, and as you move closer to the source of the charge, the field strength increases.
In summary, to find the strongest electric field on an equipotential map, look for closely spaced equipotential lines and sharp bends in these lines. These features indicate that the electric field is concentrated and stronger near charged objects or boundaries, which is where you would expect it to be.
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For a manufacturing process that produces copper tubing, a(n) would track the variability of the tubing's diameter. A. R-chart B. x-bar chart C. p-chart D.m-chart E. v-chart
A. R-chart An R-chart, also known as a range chart, is used to track the variability or dispersion of a manufacturing process.
It is commonly used in statistical process control (SPC) to monitor the consistency of a process over time.
In the case of copper tubing production, an R-chart would be suitable for tracking the variability of the tubing's diameter. The chart displays the range (the difference between the largest and smallest values) of a set of samples taken from the manufacturing process. By analyzing the range values, one can assess whether the process is producing tubing with consistent diameter or if there is excessive variability.
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The alternator produces direct current, which is changed to alternating current by the diodes.
Answer:
False
Explanation:
Alternator produces alternating current ....diodes convert this to direct current
Why do you have to know each testing tools?
Answer:
YAH A BLINK
Explanation:
If u are asking about softwares
then,
Software testing tools are often used to assure firmness, thoroughness and performance in testing software products.
\(#Liliflim\)
since every tool is important, it is also important that we know and learn how to use it for the coming of the day so we can fix the things that are broken to us.
A closed vessel of volume 80 litres contains 0.5 N of gas at a pressure of 150 kN/m2. If the gas is compressed isothermally to half its volume, determine the resulting pressure.
Answer:
The resulting pressure of the gas when its volume decreases is 300 kN/m².
Explanation:
Given;
initial volume of the gas, V₁ = 80 L
number of moles of the gas, n = 0.5 moles
initial pressure of the gas, P₁ = 150 kN/m² = 150 kPa
Determine the constant temperature of the gas using ideal gas equation;
PV = nRT
where;
R is ideal gas constant = 8.315 L.kPa/K.mol
T is the constant temperature
\(T = \frac{P_1V_1}{nR} \\\\T = \frac{150.kPa \ \times \ 80 .L}{0.5 .mol \ \times \ 8.315(L.kPa/mol.K)} \\\\T = 2,886.35 \ K\)
When the gas is compressed to half of its volume;
new volume of the gas, V₂ = ¹/₂ V₁
= ¹/₂ x 80L = 40 L
The new pressure, P₂ is calculated as;
\(P_2V_2 = nRT\\\\P_2 = \frac{nRT}{V_2} \\\\P_2 = \frac{0.5 \times 8.315\times 2886.35}{40} \\\\P_2 = 300 \ kPa = 300 \ kN/m^2\)
Therefore, the resulting pressure of the gas when its volume decreases is 300 kN/m².
For this activity, imagine you are participating in a town hall meeting about possible gene drive research. In this fictional scenario, ASU scientists propose to develop a gene drive to eliminate West Nile Virus in the Phoenix area. In the spirit of democratic deliberation, the scientists plan to discuss the research vision with the community at a Science Cafe at Changing Hands Bookstore. Select one of the meeting participants to play from the list below. To prepare for the discussion, write a post explaining your starting position on the research. Are you in favor? Have questions? Are there ways of setting up the project that would lead you to support or oppose it? Etc.Participants:
A Tempe city council member
A retiree who has recently moved to Arizona to be near kids
A stay-at-home parent with young children
A local hardware store employee
As a local hardware store employee, I have concerns about the long-term consequences and risks of a gene drive for eliminating West Nile Virus.
Participant: A local hardware store employee
Post:
As a local hardware store employee, I have a vested interest in the well-being of the Phoenix community. I understand that the scientists from ASU are proposing the development of a gene drive to eliminate West Nile Virus in our area, and I believe it's crucial to have an open discussion about this research vision.
Firstly, I want to emphasize that I am not an expert in genetics or public health. However, I do have concerns and questions regarding the potential implementation of a gene drive for such a purpose.
My main concern revolves around the long-term consequences and potential risks associated with altering the genetic makeup of organisms, even if it is for a positive outcome like eliminating West Nile Virus. While the eradication of this disease is undoubtedly a worthy goal, we must ensure that the benefits outweigh any unintended negative effects.
Before I can fully support or oppose this research, I would like to better understand the safeguards that would be put in place to prevent any unintended ecological disruptions. What are the contingency plans if the gene drive were to have unintended consequences on non-target species? Are there measures in place to address potential resistance to the gene drive in the West Nile Virus-carrying mosquitoes? These are critical questions that must be answered to assess the feasibility and safety of this project.
Additionally, it would be crucial to involve a diverse range of stakeholders in the decision-making process. Engaging with experts in genetics, public health officials, and environmentalists, along with community members, will help ensure that all perspectives are taken into account. Transparency and inclusivity are key to fostering trust and ensuring that the decision ultimately made serves the best interests of our community.
In conclusion, while I recognize the importance of addressing the issue of West Nile Virus, I approach the proposal for a gene drive with caution. My starting position is one of skepticism and the need for further information. I believe a comprehensive risk assessment, robust stakeholder engagement, and a thorough examination of potential unintended consequences are necessary before making a final determination on supporting or opposing the project.
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A total station has an ISO 17123-3 specified accuracy of ± 1.6 ′′. What is the estimated precision of an angle observed with two repetitions?
Where the above ISO is given, the estimated precision of an angle observed with two repetitions is: 1.13
Why is this so?To estimate the precision of an angle observed with two repetitions we must use the following formula:
Precision = accuracy/ √n
In this case, n is number of repetitions
So
Precision = 1.6 / √2
Precision = 1.1313708499
So, It is to be noted that the estimated precision of an angle observed with two repetitions is 1.13 (when rounded to 3 significance figures)
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grade 5 bolts have __ identifying on the head
Grade 5 bolts have 3 marks identifying on the head
This is further explained below.
What are Grade 5 bolts?Generally, When looking for the correct bolt, it is essential to check that the grades of the bolts that are currently being used are compatible with one another.
There is no difference between Grade 5 Bolts and Metric.
8 Bolts. The presence of three marks on the head of a Grade 5 bolt is often all that is required for successfully identifying the bolt.
In conclusion, The head of a grade 5 bolt will have three distinguishing markings on it.
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If the specific surface energy for soda–lime glass is 0.30 J/m2 and its modulus of elasticity is (69 GPa), compute the critical stress required for the propagation of an internal crack of length 0.8 mm.
Answer: the critical stress for the sodalime glass = 5.7MPa
Explanation:
Ist Step
we Calculate half length of internal crack as
2a =0.8 mm
a = 0.8/2 = 0.4 mm
Changing to meters becomes = 0.4 / 1000 =0.0004m
2nd Step
Now the critical stress required for the propagation of the internal crack can be calculated using the formulae
Critical Stress (σc) = (2 E γs/ πa) 1/2
where E= modulus of elasticity
γs= specific surface energy for soda–lime glass
a= Length
= (2 x 69 x 10 ^9 x 0.30/ π x 0.0004)1/2
=\(\sqrt{ 32,940,802,036,919}\)
= 5,739,407.8= 5.7 x 10^6 N/m^2
= 5.7MPa
When inspecting tires, what should you look for?
Answer: Tire pressure tire tread and sidewalls.
Explanation:
Answer:
Tire pressure tire tread and the sidewalls
In building elevations, the surface of the ground is shown by a __________ line.
In building elevations, the surface of the ground is shown by a heavy solid line. Thus, option C is correct.
What are building elevations?A building elevation can be defined as the way the building would reach look or be represented. This is often built by an architect who understands all will be the view and key elemnts of the building.
As the building will need a strong structure or a story structure To be built on there for in a building elevation, the surface area is being denoted with the help of a heavy solid line with me that this one won't be easily built or collapsed. Therefore, option C is the correct option.
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The question is incomplete, the complete question will be:
a.light solid
b.heavy dashed
c.heavy solid
d.light dashed
Chapter 07, Problem 065 The drag characteristics of an airplane are to be determined by model tests in a wind tunnel operated at an absolute pressure of 1300 kPa. If the prototype is to cruise in standard air at 406 km/hr, and the corresponding speed of the model is not to differ by more than 29% from this (so that compressibility effects may be ignored), what range of length scales may be used if Reynolds number similarity is to be maintained? Assume the viscosity of air is unaffected by pressure, and the temperature of air in the tunnel is equal to the temperature of the air in which the airplane will fly.
Answer:
the range of length scales is ( 0.0602 - 0.1094 )
Explanation:
Given the data in the question;
\(P_{absolute\) = 1300 kPa
V\(_{prototype\) = 406 km/h
speed of model nit more than 29%
we know that Reynolds number Re = pVl/μ = constant
p\(_m\)V\(_m\)l\(_m\)/μ\(_m\) = pVl/μ
such that;
l\(_m\)/l = ( p/p\(_m\) )( V/V\(_m\) )( μ\(_m\)/μ ) ----- let this be equation 1
Now, for an idea gas; P = pRT { with constant temperature }
p / p = constant; p/p\(_m\) = p/p\(_m\)
assuming μ\(_m\) = μ\(_m\)
Therefore, the relation becomes;
l\(_m\)/l = ( p/p\(_m\) )( V/V\(_m\) )
from the given data;
l\(_m\)/l = ( 101/1300 )( V/V\(_m\) )
where our V\(_m\) = ( 1 ± 29% )V
so
l\(_m\)/l = ( 101/1300 )( V / ( 1 ± 29% )V )
l\(_m\)/l = ( 101/1300 )( 1 / ( 1 ± 0.29 ) )
Now, The minimum limit will be;
l\(_m\)/l = ( 101/1300 )( 1 / ( 1 + 0.29 ) )
= ( 101/1300 ) × ( 1 / 1.29 )
= 0.0602
The maximum limit will be;
l\(_m\)/l = ( 101/1300 )( 1 / ( 1 - 0.29 ) )
= ( 101/1300 ) × ( 1 / 0.71 )
= 0.1094
Therefore, the range of length scales is ( 0.0602 - 0.1094 )
Suppose a manager of a certain mining company wants to determine the weekly food expenditure of the company’s employees. if there are 2,549 employees and the manager decided to use only 500 employees as a sample, who will be included in the sample? to help the manager make his decision, suggest a sampling technique to be used and state the whole process of selecting the participants
The sampling technique that can be used to selecting the participants will be a random sampling.
What is sampling?It should be noted that sampling simply a method in statistical analysis that predetermined observations are taken from the population.
In this case, the sampling technique that can be used to selecting the participants will be a random sampling. This is need to give everyone an equal chance of being selected.
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Nate needs to replace the cable to his lamp. He is stripping it to connect it to the termils. What should he remember to do with the knife
Answer: i got you its d
Explanation:had the smae question as you
Give reasons why it is difficult to accurately quantify the quantum of carbon released from terrestrial ecosystems that are as a result of land-use change.
The reason that makes it is difficult to accurately quantify the quantum of carbon released from terrestrial ecosystems are linked with Sensitivity analysis as well as bias made by gap filling of satellite data.
What is the principal quantum of carbon?
In its ground state, the six electrons of carbon (atomic number 6) in the second row of the periodic table occupy two of its primary energy levels, giving the highest-energy electron a principal quantum number n of 2.
Therefore, note that the act of carrying out Sensitivity analysis is a factor that has hindered the knowledge about the amount of release of carbon in the atmosphere.
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Pls help!!! will give brainly!!!
Bridge collapses have hit the news recently with more frequency. Do some research online and state two possible reasons for these collapses. How might those employed in the Health, Safety, & Environmental Management pathway help prevent these collapses and keep us safe?
Answer:
The main reason for bridges collapses is: earthquakes (natural disasters) and construction incidents. Whenever a natural disaster occur, it makes the bridge collapse. An example is hurricanes. Hurricanes come with a great wind and that might lead to the bridge collapsing. Construction incidents means the bridge falls during construction. Those who are employed in health, safety and environmental management need to make sure that during the construction, they have examined the material and made sure it is strong. Working with economists, they should seek better understanding of the methods for minimizing the costs during the life of the bridge. In case for natural disasters, like flooding, they should make the bridge in a lever where the water won't reach the bridge. And they should have a limit for weight in the bridges because that is another reason it collapses, because the bridge does not support extra weight.
Explanation:
hope this helps
Give what you now know about the transportation industry, describe in 50 words or less some key issues which are likely to limit a person's successful pursuit of a career in the industry
Answer:
One major way I can think of is competition. Someone who is just starting in the career may have trouble competing with much larger companies or businesses. This may cause them to have to adapt to the tough environment, and if they do not do so, it may cause them to become unsuccessful in the pursuit of their career.
Explanation:
a certain stress sensor is mounted on an aircraft wing that is subject to periodic wing gusts. the stress can be approximated by a sinusoidal function (i.e. sine wave) ranging from 3,313 kpa to 5,371 kpa at a frequency of 6 hz. determine the average stress value in kpa. (provide the answer using 2 decimal places).
average stress value in kpa with a 6 hz frequency and 5,371 kpa of pressure. 4,342
What does the term "sinusoidal function" mean?
A function that is based on the sine function, a periodic function that oscillates smoothly between high and low values, is referred to as a sinusoidal function. Since the cosine function is simply a horizontal shift of the sine function, sinusoidal functions can also be built on it. A function that describes some occurrence is a mathematical model. Since sinusoidal functions are periodic, they can be utilized as models for objects that display periodic behavior. In some applications of periodic phenomena, however, the concept of frequency is utilized in place of the period.
Explanation
y (+)= A0 + Bsin (wt)
A0= 5371 +3,313/2 =4,342
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When considering choice architecture, a nudge: Multiple Choice All of these are true. allows anyone who wants to go in a different direction to do so. is a gentle push in a particular direction. does not take away any options.
When considering choice architecture, a nudge is a gentle push in a particular direction that does not take away any options and allows individuals the freedom to make alternative choices.
A nudge, in the context of choice architecture, refers to a subtle influence or gentle push that aims to guide individuals towards making certain choices without removing any available options. It is a strategy that seeks to shape people's decisions by subtly altering the way choices are presented or framed. Importantly, a nudge does not restrict individuals from making alternative choices or force them in a specific direction. Instead, it aims to make certain choices more appealing or accessible while maintaining the freedom for individuals to choose differently if they desire. By leveraging behavioral insights and understanding how people make decisions, choice architects can design nudges that encourage desired behaviors while respecting individual autonomy and choice.
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genetic algorithms: do not work for most problems. develop solutions to particular problems using inheritance, crossover, and mutation. represent knowledge as groups of characteristics. are based on logic. seek to emulate a human expert's way of solving problems.
Genetic algorithms B: develop solutions to particular problems using inheritance, crossover, and mutation, as well as C: represent knowledge as groups of characteristics, also they E: seek to emulate a human expert's way of solving problems.
Genetic algorithms are a problem-solving approach inspired by the process of natural selection in evolution. They work by generating a population of potential solutions represented as chromosomes with characteristics. These characteristics are combined through techniques like inheritance, crossover, and mutation to create new generations of solutions. T
he algorithm aims to improve the solutions over time through fitness evaluation and selection. Genetic algorithms are designed to simulate the process of evolution and mimic the problem-solving capabilities of human experts rather than being based on strict logic. Therefore, the correct answer is that genetic algorithms develop solutions to particular problems using inheritance, crossover, and mutation (Option B, C nad E).
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A thick steel slab ( 7800 kg/m3 , c 480 J/kg K, k 50 W/m K) is initially at 300 C and is cooled by water jets impinging on one of its surfaces. The temperature of the water is 25 C, and the jets maintain an extremely large, approximately uniform convection coefficient at the surface. Assuming that the surface is maintained at the temperature of the water throughout the cooling, how long will it take for the temperature to reach 50 C at a distance of 25 mm from the surface
Answer:
1791 secs ≈ 29.85 minutes
Explanation:
( Initial temperature of slab ) T1 = 300° C
temperature of water ( Ts ) = 25°C
T2 ( final temp of slab ) = 50°C
distance between slab and water jet = 25 mm
Determine how long it will take to reach T2
First calculate the thermal diffusivity
∝ = 50 / ( 7800 * 480 ) = 1.34 * 10^-5 m^2/s
next express Temp as a function of time
T( 25 mm , t ) = 50°C
next calculate the time required for the slab to reach 50°C at a distance of 25mm
attached below is the remaining part of the detailed solution
Determine the initial void ratio, the relative density and the unit weight (in pounds per cubic foot) of the specimens for each sand.
The initial void ratio is the parameter which is used to show the structural foundations for each specimen of sand so that the method and speed of compression would be measured.
Relative density is the mass per unit volume of each specimen of sand which is measured and it has to do with the relative ratio of the density of the sand.
Unit weight is the the exact weight per cubic foot of the sand which is measured.
Please note that your question is incomplete so I gave you a general overview to help you better understand the concept
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why does a straight-wing aircraft have a higher coefficient of lift than a swept-wing aircraft with the same airfoil thickness and camber?
A straight-wing aircraft has a higher coefficient of lift because it has a shorter chord length and a higher aspect ratio than a swept-wing aircraft.
What is aircraft?
A vehicle that can fly is known as an aircraft. It does so by gaining support from of the air. It does this by using either static lift, dynamic lift provided by an airfoil, or, in a few rare instances, the descending thrust from jet engines to overcome the force of gravity. Hot air balloons, gliders, paramotors, aeroplanes, helicopters, and airships (including blimps) are a few examples of common types of aircraft. Aviation is the term used to describe human activity related to aircraft. Aeronautics is the name given to the field of study that includes the design and construction of aircraft. Unmanned aerial vehicles (UAVs) can be remotely piloted as well as self-controlled by onboard computers, unlike crewed aircraft that have an onboard pilot. Different classification methods for aircraft exist, including lift type, aircraft propulsion, usage, and more.
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1) I love to swim. 2) A few years ago, my new year's resolution was to become a faster swimmer. 3) First, I started eating better to improve my overall health. 4) Then, I created a training program and started swimming five days a week. 5) I went to the pool at my local gym. 6) To measure my improvement, I tried to count my laps as I was swimming, but I always got distracted and lost track! 7) It made it very hard for me to know if I was getting faster. 8) This is a common experience for swimmers everywhere. 9) We need a wearable device to count laps, calories burned, and other real-time data. Summarey of the story
In the figure, a stone is projected at a cliff of height, h, with an initial speed of 46.0 m/s directed at an angle θ0=65.0 above the horizontal. The stone strikes at A, 5.54 s after launching. Find:(a) the height, h of the cliff(b) the speed of the stone just before impact at A(c) the maximum height, H reached above the ground.
(a) The height of the cliff is 80.5 m
(b) The final velocity of the stone before it strikes A is 26.22 m/s
(c) The maximum height reached by the stone is 88.67 m
What is an illustration of velocity?Velocity may be defined as the rate at which an object moves in a certain direction. as the pace of a car driving north on a roadway or the pace at which a rocket takes off.
How can I determine velocity?By dividing the amount of time it took the item to go a certain distance by the overall distance, one may calculate the object's initial velocity. V is indeed the velocity, the distance d while t is the time inside the formula V = d/t.
(a) Using the same coordinate system assumed in Eq. , we solve for y=h:
h=y₀+v₀sinθ₀t−1/2gt²
which yields h=80.5m for y₀=0, v₀=46.0m/s, θ₀=65.0°, and t=5.54s.
(b) The horizontal motion is steady, sovₓ =v₀ₓ =v₀cosθ₀ but the vertical component of velocity varies according to Eq. . Thus, the speed at impact is
v=√(v₀ cos₀)²+(v₀ sinθ₀− gt)²=26.22m/s
(c) We use Eq. with vy and y=H:
H=(v₀sinθ₀)²/2g=88.67m.
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: (a) A 3-phase induction motor has 8 poles and operates with a slip of 0.05 for a certain load Compute (in rpm): i. The speed of the rotor with respect to the stator ii. The speed of the rotor with respect to the stator magnetic field iii. The speed of the rotor magnetic field with respect to the rotor iv. The speed of the rotor magnetic field with respect to the stator V. The speed of the rotor magnetic field with respect to the stator magnetic field
The speed of the rotor with respect to the stator is 2,856 rpm, and the speed of the rotor with respect to the stator magnetic field is 2,860 rpm.
The synchronous speed of a 3-phase induction motor is given by the formula: Ns = 120f/p, where Ns is the synchronous speed in rpm, f is the frequency of the power supply, and p is the number of poles. In this case, since the motor has 8 poles, the synchronous speed is Ns = 120f/8 = 15f.
The speed of the rotor with respect to the stator is given by the formula: Nr = (1 - s)Ns, where Nr is the rotor speed, and s is the slip. The slip is given as 0.05, so the rotor speed is Nr = (1 - 0.05)15f = 14.25f.
The speed of the rotor with respect to the stator magnetic field is given by the formula: Nrm = Nr - Ns = 14.25f - 15f = -0.75f. This indicates that the rotor is rotating in the opposite direction to the stator magnetic field, with a speed of 0.75 times the frequency.
The speed of the rotor magnetic field with respect to the rotor is the slip speed, which is given as Nsr = sNs = 0.05*15f = 0.75f.
The speed of the rotor magnetic field with respect to the stator is the sum of the rotor speed and the rotor magnetic field speed, which is Ns + Nsr = 15f + 0.75f = 15.75f.
The speed of the rotor magnetic field with respect to the stator magnetic field is the difference between the rotor speed and the rotor magnetic field speed, which is Nr - Nsr = 14.25f - 0.75f = 13.5f.
Therefore, the calculated speeds are as follows: i) the speed of the rotor with respect to the stator is 14.25f or 2,856 rpm (assuming a 50 Hz power supply), ii) the speed of the rotor with respect to the stator magnetic field is -0.75f or -150 rpm, iii) the speed of the rotor magnetic field with respect to the rotor is 0.75f or 150 rpm, iv) the speed of the rotor magnetic field with respect to the stator is 15.75f or 3,150 rpm, and v) the speed of the rotor magnetic field with respect to the stator magnetic field is 13.5f or 2,700 rpm.
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The velocity profile in a turbulent boundary layer often is approximated by the 1/7-power-law equation u/U = (y/delta)1/7 Compare the shape of this profile with the parabolic laminar boundary-layer velocity profile (Problem 9.10) by plotting y/delta (on the ordinate) versus u/U (on the abscissa) for both profiles.
The 1/7-power-law velocity profile is a better representation of the velocity profile in a turbulent boundary layer than the parabolic laminar boundary-layer velocity profile.
What is velocity?
Velocity is the rate at which an object moves in a certain direction. It is a vector quantity, meaning it has both magnitude (the speed) and direction. Velocity is often expressed as the rate of change of displacement, which is the distance an object travels in a certain direction. Velocity is the change in position over time; the faster an object moves, the greater the velocity. Velocity is important in physics because it is used to calculate the acceleration of an object, the force of gravity, and the momentum of a moving object. It is also used to measure the speed of sound and the speed of light. Velocity is a fundamental concept in physics, and it is used to describe and measure a variety of physical phenomena.
This is because the former has a higher velocity near the wall and a lower velocity near the centerline, which is more representative of the actual velocity profile in a turbulent boundary layer.
The 1/7-power-law velocity profile is represented by the equation u/U = (y/delta)1/7 and the parabolic laminar boundary-layer velocity profile is represented by the equation u/U = (y/delta)2.
When these two equations are plotted on the same graph, with y/delta on the ordinate and u/U on the abscissa, the 1/7-power-law velocity profile is seen to have a higher velocity near the wall and a lower velocity near the centerline, which is more representative of the actual velocity profile in a turbulent boundary layer.
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The steel shaft has a diameter of 40 mm and is fixed at its ends A and B . If it is subjected to the couple determine the maximum shear stress in regions AC and CB of the shaft. G st = 75 GPa.
Q6/
Answer:
See explanation.
Explanation:
Since no figure was given I solved a problem that was similar to the one you described that I worked in my mechanics of materials class. The method should be very similar for your figure. See attached image for my work.
If it is subjected to the couple determine the maximum shear stress in regions AC and CB of the shaft. G st = 75 GPa. Than the answer will be 52Mpa.
What we need to perform?We need to perform a two step process to obtain the maximum shear stress on the shaft. For the solid shaft,
P=2×pi×N×T/60 or T=60×p/2×pi×N
Where P=power transmitted by the shaft=50×10³W
N=rotation speed of the shaft in rpm=730rpm
Pi=3.142
T is the twisting moment
By substituting the values for pi, N and P, we get
T=654Nm or 654×10³Nmm
Also, T=pi×rho×d³/16 or rho=16×T/pi×d³
Where rho=maximum shear stress
T = twisting moment=654×10³Nmm
d= diameter of shaft= 40mm
By substituting T, pi and d
Rho=52Mpa
b. For a hollow shaft, the value for rho is unknown
T=pi×rho(do⁴-di⁴/do)/16
Rho=T×16×do/pi×(do⁴-di⁴)
Where
T= twisting moment=654×10³Nmm gotten above
do=outside shaft diawter=40mm
di= inside shaft diameter =30mm
Pi=3.142
Substituting values for pi, do, di and T.
Rho=76Mpa
Therefore, If it is subjected to the couple determine the maximum shear stress in regions AC and CB of the shaft. G st = 75 GPa. Than the answer will be 52Mpa.
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Question 10 of 10
Two students made a model of the world's tallest building,
the Burj Khalifa in Dubai. The scale of the model is 1:400.
The students' model has a height of 2.07 m.
How tall is the real building?
A. 193 m
B. 0.005 m
C. 400 m
D. 828 m
SUBMIT
Answer: C.400m
Explanation: Hope its Right
To convert a measurement in centimeters to
meters, you simply move the decimal point
a. two places to the left
b. three places to the right
c. three places to the left
do four places to the right
Answer:
a
Explanation:
To convert a measurement in centimeters to meters, simply move the decimal point two places to the left. Thus, the correct option is A). two places to the left.
What is the way to convert centimeters to meters and decimals?There are 100 centimeters in every meter, which means that dividing the measurement in centimeters by 100 will convert it to meters. This conversion is very quick and easy by simply moving the decimal point in the measurement 2 spaces to the left.
The centimeter to meter conversion (cm to m) is basically, the conversion from centimeters to meters. One centimeter is approximately equal to 0.01 meter or we can say that one meter equals to 100 centimeters.
Simply, in order to convert cm to m, multiply the given centimeter value by 0.01 m. For example:- 5 cm = 5 x 0.01 m
5 cm = 0.05 m
Learn more about conversion from centimeters to meters here:-
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The cars of a roller-coaster ride have a speed of 19.0 km/h as they pass over the top of the circular track. Neglect any friction and calculate their speed v when they reach the horizontal bottom position. At the top position, the radius of the circular path of their mass centers is 21 m, and all six cars have the same mass. What is v?
Complete Question
The cars of a roller-coaster ride have a speed of 19.0 km/h as they pass over the top of the circular track. Neglect any friction and calculate their speed v when they reach the horizontal bottom position. At the top position, the radius of the circular path of their mass centers is 21 m, and all six cars have the same mass.V = -18 m What is v?X km/h
Answer:
\(v=23.6m/s\)
Explanation:
Velocity \(v_c=18.0km/h\)
Radius \(r=21m\)
initial velocity u\(u=19=>5.27778\)
Generally the equation for Angle is mathematically given by
\(\theta=\frac{v_c}{2r}\)
\(\theta=\frac{18}{2*21}\)
\(\theta=0.45\)
\(\theta=25.7831 \textdegree\)
Generally
Height of mass
\(h=\frac{rsin\theta}{\theta}\)
\(h=\frac{21sin25.78}{0.45}\)
\(h=20.3m\)
Generally the equation for Work Energy is mathematically given by
\(0.5mv_0^2+mgh=0.5mv^2\)
Therefore
\(v=\sqrt{u^2+2gh}\)
\(v=\sqrt{=5.27778^2+2*9.81*20.3}\)
\(v=23.6m/s\)