The specimen of this material will elongate to 24.348mm K = d / €^n.
The letter d symbolizes the Greek letter epsilon.
K = 345 / 0.02⁰.²² = 816mPa
The real strain based on 414mPa stress equals
€= (€/k)^1/n = (414/816)¹/⁰.²² = 0.04576
The genuine connection between true strain and length, on the other hand, is provided by
ln(Li/Lo) = €
By rearranging, we may make Li the subject of a formula.
Li = Lo.e^€
Li = 520e⁰.⁰⁴⁵⁷⁶
Li = 544.348mm
From this, the amount of elongation may be estimated.
Change in L = Li - Lo = 544.348 - 520 = 24.348mm.
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Q1) Determine the force in each member of the
truss and state if the members are in tension or
compression.
Set P1 = 10 kN, P2=15 KN
Answer:
CD = DE = DF = 0BC = CE = 15 N tensionFA = 15 N compressionCF = 15√2 N compressionBF = 25 N tensionBG = 55/2 N tensionAB = (25√5)/2 N compressionExplanation:
The only vertical force that can be applied at joint D is that of link CD. Since joint D is stationary, there must be no vertical force. Hence the force in link CD must be zero, as must the force in link DE.
At joint E, the only horizontal force is that applied by link EF, so it, too, must be zero.
Then link CE has 15 N tension.
The downward force in CE must be balanced by an upward force in CF. Of that force, only 1/√2 of it will be vertical, so the force in CF is a compression of 15√2 N.
In order for the horizontal forces at C to be balanced the 15 N horizontal compression in CF must be balanced by a 15 N tension in BC.
At joint F, the 15 N horizontal compression in CF must be balanced by a 15 N compression in FA. CF contributes a downward force of 15 N at joint F. Together with the external load of 10 N, the total downward force at F is 25 N. Then the tension in BF must be 25 N to balance that.
At joint B, the 25 N downward vertical force in BF must be balanced by the vertical component of the compressive force in AB. That component is 2/√5 of the total force in AB, which must be a compression of 25√5/2 N.
The horizontal forces at joint B include the 15 N tension in BC and the 25/2 N compression in AB. These are balanced by a (25/2+15) N = 55/2 N tension in BG.
In summary, the link forces are ...
(25√5)/2 N compression in AB15 N tension in BC25 N tension in BF0 N in CD, DE, and EF15 N tension in CE15√2 compression in CF15 N compression in FA_____
Note that the forces at the pins of G and A are in accordance with those that give a net torque about those point of 0, serving as a check on the above calculations.
If two motors are to be started at the same time, the standby power system must have the capacity to provide the _____ of the starting kilovolt-ampere values for the two motors *
Answer:
Sum.
Explanation:
An electric motor can be defined as a machine which is typically used for the conversion or transformation of electrical energy into mechanical energy.
Basically, the mode of operation of an electric motor is simply to supply the motor with an alternating current (AC) voltage to one end, which is then used to power the axle (metal rod) at the other end of the motor.
Two motors can be made to run simultaneously in a synchronous manner through the use of a standby power system that provides the required level of power (alternating current and voltage).
Thus, if two motors are to be started at the same time, the standby power system must have the capacity to provide the sum of the starting kilovolt-ampere (KVA) values for the TWO motors.
an electric light fixture weighting 15N hangs from a point C by two strings AB and BC. the string AC is inclined at angle of 60 degree angle to the horizontal and BC at 45 degree angle to the horizontal. determine the forces in the strings AC and BC
Answer:
AC ≈ 10.98 NBC ≈ 7.76 NExplanation:
In this geometry, the force in each string is proportional to the cosine of the angle the opposite string makes with the horizontal, and is inversely proportional to the sine of the sum of the angles.
AC = (15 N)cos(45°)/sin(60° +45°) = (15 N)cos(45°)/sin(105°) ≈ 10.98 N
BC = (15 N)cos(60°)/sin(105°) ≈ 7.76 N
_____
The relation described above derives from the fact that the sum of vertical forces and the sum of horizontal forces are both zero when the system is in equilibrium.
If the latitude and longitude of a point in Puerto Rico are 17º59'39" and 65º27'56.7", respectively, what is the angle of convergence γ for this point?(answer in decimals)
The angle of convergence γ for the given point in Puerto Rico is approximately 114.53425 degrees.
To find the angle of convergence γ, we need to convert the latitude and longitude from degrees, minutes, and seconds to decimal degrees.
Latitude: 17º59'39"
To convert minutes and seconds to decimal degrees, we divide the minutes by 60 and the seconds by 3600.
17º + (59/60) + (39/3600) = 17.9941667º
Longitude: 65º27'56.7"
Following the same conversion process:
65º + (27/60) + (56.7/3600) = 65.46575º
Now, we can use the formula for calculating the angle of convergence γ:
γ = 180º - |longitude|
Substituting the longitude value:
γ = 180º - |65.46575º| = 180º - 65.46575º = 114.53425º
Therefore, the angle of convergence γ for the given point in Puerto Rico is approximately 114.53425 degrees.
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what is Auto Cad? and some should help me the drawing of it?
What is Auto Cad?
Answer : AutoCAD is a commercial computer-aided design (CAD) and drafting software application. Developed and marketed by Autodesk, AutoCAD was first released in December 1982 as a desktop app running on microcomputers with internal graphics controllers.
This is the Answer for your question :3
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Technician A says that collapsible steering columns may use a pyrotechnic charge. Technician B says that collapsible brake pedals assemblies reduce the risk of trapping the drivers feet. Who is right
Answer:
I think A is correct
The two technicians are right in their given assessment about the use of collapsible steering columns and collapsible brake pedals to reduce the risk of trapping the driver's feet.
What is Safe Driving?This refers to the vehicular movement from one point to another, obeying traffic rules, and respect for other drivers and pedestrians.
Hence, we can see that with regards to safe driving, the opinions of both Technicians A and B are both correct as they both want the safety of the car and the driver.
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consider this single-tank liquid level system. which of the following is the output mass flow rate of this system? please submit your hand calculations into the dropbox.
•R2:Linear resistance of valve •h :Height of liquid •qi =inlet volume flow rate •A=cross sectional area of the tank (constant) •P:density of liquid=constant •P, pump: pump pressure •P pump: pump pressure Apply the law of conservation of mass to the E.O.M. Assuming h> h1 > h2 Which of the following is the output mass flow rate of this system? Please submit your hand calculations into the dropbox.
The output mass flow rate of the system can be determined using the law of conservation of mass.
According to the law of conservation of mass, the mass flow rate into the system must be equal to the mass flow rate out of the system. Therefore, we can equate the mass flow rate at the inlet (qi) to the mass flow rate at the outlet (qo).
Using the Bernoulli's equation, we can express the outlet mass flow rate (qo) in terms of the system variables:
qo = A * sqrt(2 * (P - P_pump) / P) * sqrt(2 * (h1 - h2 + R2 * qo^2 / A^2))
Simplifying this equation by assuming that the term R2 * qo^2 / A^2 is small compared to the other terms, we get:
qo = A * sqrt(2 * (P - P_pump) / P) * sqrt(2 * (h1 - h2))
Therefore, the output mass flow rate (qo) can be calculated as:
qo = A * sqrt(2 * (P - P_pump) / P) * sqrt(2 * (h1 - h2))
The output mass flow rate of the single-tank liquid level system is given by the equation qo = A * sqrt(2 * (P - P_pump) / P) * sqrt(2 * (h1 - h2)).
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Race cars at the Indianapolis Speedway average speeds of 185 mi/h. After determining the altitude of Indianapolis, find the Mach number of these cars and estimate whether compressibility might affect their aerodynamics.
Answer:
- the Mach number is 0.24.
- Compressibility becomes effective when Mach number is greater than 0.3, the Mach number of the race cars is less than 0.3, hence, compressibility will not affect their aerodynamics.
Explanation:
Given the data in the question;
Average speed V = 185 miles per hour = ( 185 /2.237 ) m/s = 82.7 m/s
From Almanac, we can find that Indianapolis is at 220 m altitude.
So from table, at that altitude, the standard speed of sound will be 339.4 m/s .
Mach number of the race car will be;
Mach Number = Velocity / sound speed
we substitute
Mach Number = ( 82.7 m/s ) / ( 339.4 m/s )
Mach Number = 0.24
Therefore the Mach number is 0.24.
We know that, compressibility becomes effective when the Mach number is greater than 0.3.
Since the Mach number of the race cars is less than 0.3, compressibility will not affect their aerodynamics.
For every 3 people at the concert singing along, there are 5 people not singing along. If there are 180 more people not singing along, how many total people are at the concert?
Answer:
The total people are at the concert
= 296
Explanation:
a) Data and Calculations:
Ratio of the number of people singing along at the concert to the number of people not singing along
= 3:5
The number of more people not singing along = 180
Therefore, the total number of people not singing along = 185 (180 +5)
Every person singing along = 185/5 * 3 = 111
Total number of people at the concert = number of people not singing along plus number of people singing along
= 185 + 111
= 296
Which option identifies the section of the project charter represented in the following scenario?
For the past five years, students at New School have been in desperate need of a playground. The closest playground is a mile away, at Safe
Park. Our project is to design a playground for the students and to find funding in the community to support it.
O executive summary
O constraints
O project objectives
O project development cycle
Answer:
Executive Summary
Explanation:
It is Executive Summary because I used process of elimination. Constraints are set backs. Project objectives are the goals that you want to achieve. Project development cycle are basically the steps that will be used.
A student is investigating the particles in a glass window, raindrops on the window, and the air around the window. Assume the window, the raindrops, and the air are all at 25 °C.
Matter can be defined as anything (physical object or body) that has mass and takes up space. Thus, the mass of a physical object measures the amount of matter the object contains.
The states of matter.In Science, water is an example of matter and it exists in three (3) main states or phases such as the following:
SolidLiquidGasBased on scientific records and information, we know that all particles have various degrees of attraction to one another and this can be described as follows:
The glass is a solid and as such the attraction between its particles is strong enough to make them locked in one place. The raindrop is a liquid and as such the attraction between its particles is strong enough to hold them together, but not strong enough to prevent the particles from sliding past each other. The air is a gas and as such there is very little (minimal) attraction between its particles, thereby, making them to move freely.Read more on matter here: https://brainly.com/question/24783543
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Complete Question:
A student is investigating the particles in a glass window, raindrops on the window, and the air around the window. Assume the window, raindrops, and the air are all at 25 degrees Celsius. Identify the particle structure in each sample of matter.
Why is Math mandatory in engineering?
Answer:
because Engineering focuses largely on designing and developing solutions to problems, and engineers often need to perform equations and calculations as part of the process of developing, building and testing the solutions they design.Explanation:
You will only have two attempts to answer this question correctly. Assuming you determine the required section modulus of a wide flange beam is 200 in3, determine the lightest beam possible that will satisfy this condition.
Answer:
W18 * 106
Explanation:
Section modulus of wide flange = 200 m^3
Determine the value of the lightest beam possible
The lightest beam possible that will satisfy the given condition will have a section modulus ≥ 200m^3 ( note: it will also be the nearest to 200 in^3 )
From Beam Table ; The Lightest beam with its section modulus( 204 in^3) > 200in^3 is W18 * 106
Hey guys can anyone list chemical engineering advancement that has been discovered within the past 20 years
Calculate the areas under the stress-strain curve (toughness) for the materials shown in Fig. below, (a) plot them as a
function of temperature, and describe your observations. (b) As expected, the elastic modulus of the polymer decreases as
temperature increases. Using the stress-strain curves in the figure, make a plot of the modulus of elasticity versus the
temperature. Comment on the shape of the curve.
Answer:
Explanation:
Wow
19. Write down the reason for the preparation of 350 mL mud in pilot test applications in the laboratory 20. What features of the mud are controlled by the chemicals added to the drilling mud? Make a list of them without explanation. 21. What chemical would you use to remove the calcium from the mud that was contaminated by cement or lime?
The preparation of 350 mL mud in pilot test applications in the laboratory is necessary to test the properties of the mud before it is used in larger quantities.
The pilot test provides an opportunity to evaluate the mud's performance under controlled conditions and make necessary adjustments to the mud composition before drilling operations commence. The pilot test is also useful for identifying any potential problems and ensuring that the mud is suitable for the drilling application.
20. The chemicals added to the drilling mud play a crucial role in controlling various features of the mud, including its density, viscosity, pH level, and fluid loss. They also help to prevent the formation of solids in the mud and control the growth of microorganisms. Some of the other features controlled by the chemicals include:
- Emulsion stability
- Lubricity
- Corrosion inhibition
- Filtration control
- Shale stabilization
- Thermal stability
- Defoaming
21. To remove calcium from the mud that has been contaminated by cement or lime, one could use a chelating agent such as ethylenediaminetetraacetic acid (EDTA). This chemical forms a complex with calcium ions, which are then removed from the mud by filtration or settling. Other chemicals that may be effective in removing calcium include ammonium citrate, hydrochloric acid, and sodium carbonate. The choice of chemical will depend on the specific situation and the nature of the mud contamination.
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What is the reading of this Dial Caliper?
Answer:
45
Explanation:
bdgdsfggsfg
Omar owns a stall selling handmade cosmetics, and wants to launch an e-commerce site. He has lots of experience selling his products in person at markets, but is now hoping to reach more customers online.
Can you advise Omar on how to make both his online and offline business successful?
Answer:
He could put up advertisements all over the town and pay a few websites or search engines to have his company and ads be more common. He should also use some designs and make his company's sign very adequate.
If the Mach number of an aeroplane in supersonic flight is increased, the shock wave angles will:A) stay constant. B) decrease. C) increase. D) decrease and beyond a certain Mach number start increasing again
If the Mach number of an aeroplane in supersonic flight is increased, the shock wave angles will initially decrease.
However, beyond a certain Mach number, the shock wave angles will start increasing again. This is because at low Mach numbers, the shock wave angle is determined by the local slope of the aircraft surface. As the Mach number increases, the shock wave angle decreases due to the compression of air in front of the aircraft. However, at higher Mach numbers, the shock wave angle is also affected by the strength of the shock wave itself. As the strength of the shock wave increases, the shock wave angle will start to increase again. Therefore, the correct answer to the question is D) decrease and beyond a certain Mach number start increasing again.
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The term route of entry on an sds refers to the way a ___ enters the body
The correct answer is A) Chemical
Explanation:
The abbreviations SDS means Safety Data Sheet, which refers to a very complete document about chemicals and safety related to these, including their properties and potential hazards, as well as, procedures or steps to avoid hazards and accidents.
This means the main focus of this document is chemicals; moreover, in this, there is information about the route of entry, which refers to the way chemical can enter the body and includes through inhalation, ingestion, contact with skin, among others. Also, depending on the chemical some routes of entry represent a major hazard. According to this, the correct answer is A.
Answer: Chemical!!!
Explanation:
suppose the probability of a football team winning a playoff game is 0.25.what are the odds of winning?
Odds refer to the ratio of the probability of an event happening to the probability of the event not happening. In this case, the probability of the football team winning a playoff game is 0.25.
The probability of not winning the playoff game is 1 - 0.25 = 0.75. The odds of winning can be calculated as follows:
Odds of winning = Probability of winning / Probability of not winning
Substituting the values we get:
Odds of winning = 0.25 / 0.75
Simplifying the expression we get:
Odds of winning = 1 / 3
This means that for every three games played, the team is expected to win one game. Another way to express the odds is in terms of probability. The probability of winning can be calculated from the odds as follows:
Probability of winning = Odds of winning / (Odds of winning + 1)
Substituting the value of odds, we get:
Probability of winning = (1/3) / (1/3 + 1)
Simplifying the expression we get:
Probability of winning = 0.25
This is the same as the probability given in the problem. Therefore, we can say that the odds of winning are 1 to 3, or simply 1/3, and the probability of winning is 0.25.
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select all that apply which of the following statements are true of the fluid flow rates? multiple select question. mass flow rate can be defined as the multiples of density, pipe average velocity, and cross section area normal to the velocity. mass flow rate is defined as the amount of mass flowing through a cross section per unit time. a volume flow rate is defined as the volume of the fluid flowing through a cross-section per unit time. a mass flow rate into a control volume is proportional to the velocity component parallel to the cross-sectional area. for flow in a pipe, the velocity is the same across the pipe cross section.
The relationship between density, pipe average velocity, and cross-sectional area perpendicular to the velocity can be used to calculate mass flow rate.
The quantity of mass flowing across a cross-section per unit of time is known as the mass flow rate. The volume of the fluid moving through a cross-section per unit time is referred to as a volume flow rate. By multiplying the fluid's density, the average pipe velocity, and the cross-sectional area of the pipe normal to the velocity, one can compute the mass flow rate, which is a measurement of the amount of mass flowing through a particular cross-section per unit time. Contrarily, volume flow rate is defined as the amount of fluid moving across a specific cross-section in a unit of time. The mass flow rate into a control volume is proportional to the velocity component parallel to the cross-sectional area for fluid flow in a pipe, when the velocity is constant across the pipe's cross-section.
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Is the impedance of the capacitor purely reactive, and how does it compare to the nominal value of the ideal capacitor? Why or why not is it purely reactive?
In an electric field, a capacitor is a device that stores electrical energy. It has two terminals and is a passive electrical component. Capacitance refers to a capacitor's effect.
What is the impedance of an ideal capacitor?An perfect capacitor has an infinite resistance. For all frequencies and capacitance levels, the reactance of a perfect capacitor, and consequently its impedance, is negative.A capacitor that has no resistance and therefore doesn't lose any energy while it's operating is the ideal capacitor. It just possesses capacitance. There is no dielectric loss in a perfect capacitor. High temperature stability characterizes the ideal capacitor.As capacitance and frequency increase, capacitive reactance falls. Impedance is the complete opposition that reactance and resistance give.Similar to inductors, the ideal capacitor is a totally reactive device with no resistive (power dissipative) effects whatsoever. Of course, nothing is so flawless in the actual world. Capacitors, however, have the advantage of often being more pure reactive componentsTo learn more about Ideal capacitor refer to:
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(b) Consider the steady, two-dimensional velocity field given by (i) (ii) V = (x² - y²) i - 2xyj Determine the equation of velocity potential for a given flow field. Show that the flow field is irrotational flow. (6 marks) (c) Consider the steady, two-dimensional velocity field given by Φ = x² - y² (i) Determine the equation of stream function for a given flow field. Show that the flow field is steady and incompressible fluid flow. (ii) (6 marks)
The equation of velocity potential for the given flow field, V = (x² - y²)i - 2xyj, is φ(x, y) = (1/3)x³ - y²x + C1(y) = -xy² + C2(x). The flow field is irrotational as the curl of the velocity field (∇ x V) is zero.
How to determine velocity poyential and demonstrate irrotational flow?(b) To determine the velocity potential for the given flow field, we need to find a scalar function φ(x, y) such that the velocity components can be obtained by taking partial derivatives of φ with respect to x and y.
Let's calculate these partial derivatives:
∂φ/∂x = x² - y²
∂φ/∂y = -2xy
To find φ, we integrate these partial derivatives with respect to their respective variables:
φ(x, y) = ∫(x² - y²) dx = (1/3)x³ - y²x + C1(y)
φ(x, y) = ∫(-2xy) dy = -xy² + C2(x)
Here, C1(y) and C2(x) are arbitrary functions of y and x, respectively.
The equation of velocity potential for the given flow field is:
φ(x, y) = (1/3)x³ - y²x + C1(y) = -xy² + C2(x)
To show that the flow field is irrotational, we need to calculate the curl of the velocity field and demonstrate that it is zero.
The curl of a two-dimensional vector field is given by:
∇ x V = (∂V_y/∂x - ∂V_x/∂y)
For the given velocity field V = (x² - y²)i - 2xyj, we have:
∂V_x/∂y = -2x
∂V_y/∂x = -2x
Substituting these values into the curl formula:
∇ x V = (-2x - (-2x)) = 0
Since the curl of the velocity field is zero, we can conclude that the flow field is irrotational.
(c) (i) To determine the stream function for the given flow field, we need to find a scalar function ψ(x, y) such that the velocity components can be obtained by taking partial derivatives of ψ with respect to y and x.
The stream function is defined as:
ψ(x, y) = ∫V_x dy - ∫V_y dx
Let's calculate these integrals:
∫V_x dy = ∫(x² - y²) dy = x²y - (1/3)y³ + C3(x)
∫V_y dx = ∫(-2xy) dx = -x²y + C4(y)
Here, C3(x) and C4(y) are arbitrary functions of x and y, respectively.
The equation of the stream function for the given flow field is:
ψ(x, y) = x²y - (1/3)y³ + C3(x) = -x²y + C4(y)
(ii) To show that the flow field is steady and incompressible, we need to verify two conditions:
1. Steady flow: For steady flow, the partial derivatives of velocity components with respect to time (∂V_x/∂t and ∂V_y/∂t) should be zero. Since the problem statement does not mention any time dependence, we can assume that the flow is steady.
2. Incompressible fluid flow: For incompressible flow, the divergence of the velocity field (∇ · V) should be zero. The divergence is given by:
∇ · V = (∂V_x/∂x + ∂V_y/∂y)
For the given velocity field V = (x² - y²)i - 2xyj, we have:
∂V_x/∂x = 2x
∂V_y/∂y = -2x
Substituting these values into the divergence formula:
∇ · V = (2x - 2x) = 0
Since the divergence of the velocity field is zero, we can conclude that the flow field is incompressible.
Therefore, the given flow field is steady and represents incompressible fluid flow.
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you want to view a list of users on a linux system. what command should you use?
To view a list of users on a Linux system, you should use the command `cat /etc/passwd`.
The `/etc/passwd` file contains user account information, including usernames, user IDs, group IDs, home directories, and default shells. By using the `cat` command, you can display the contents of this file in a readable format. Each line represents a user, and the fields are separated by colons. To focus on the list of usernames, you can use the `cut` command: `cut -d: -f1 /etc/passwd`.
To view a list of users in a Linux system, utilize the command `cat /etc/passwd` or `cut -d: -f1 /etc/passwd` for a more focused list of usernames.
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Which statement best describes how power and work are related?
O A. Power is the ability to do more work with less force.
O B. Power is a measure of how quickly work is done.
O C. Power and work have the same unit of measurement
O D. Power is the amount of work needed to overcome friction.
Pls answer quick
B
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Which state did NOT have people that got sick from the
Salmonella outbreak involving the Cashew Brie
O California
New Jersey
Tennessee
O Florida
FILL IN THE BLANK. implement inorder the inorder method in tree24 is left as an exercise implement it :
A good example implementation of the inorder method in the Tree24 class is gievn below
What is the implementationThe public inorder method performs an inorder traversal of the 2-4 tree. Starts traversal from root node. The inorder method calls the helper inorder(Node24) for traversal.
So, the code Start at the root node. The inorder helper method takes Node24 as a parameter. Checks if node is null. If not null, keys present in node. numKeys variable stores keys in current node. For loop traverses current node keys.
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What is computer programming
Answer:
Computer programming is where you learn and see how computers work. People do this for a living as a job, if you get really good at it you will soon be able to program/ create a computer.
Explanation:
Hope dis helps! :)
When recycling paint booth filters, you must put them in an __________ container for transport as a solid waste.
A) Impermeable
B) Open
C) Unlocked
D) Breathable
Answer:
Impermeable
Explanation:
Something that is impermeable does not allow water or liquid to pass through it.