There is no stress in the longitudinal direction since the pipe has no open ends.
What is longitudinal stress?Longitudinal stress is the term used to describe the tension that develops when an internal pressure is applied to a pipe. Due to its parallel alignment with the longitudinal axis of the pipe's centerline axis, a pipe's longitudinal stress moves in the direction of its length. Two more longitudinal stress subtypes include tensile and compressive stress. The term "tensile tension" refers to a type of stress that lengthens a body. Open ended pipe with longitudinal stress There won't be any longitudinal stress if there are open ends, as we are aware.As a result, we can say that open pipes don't experience longitudinal stress.The tool that every SaaS founder has been waiting for is Pipe. By financing their SaaS receivables, it enables SaaS companies to expand without being diluted.The computation of the minimum satisfactory thickness for the pipe is shown below:
As we know that
Now for determining the thickness we have to rearrange it
where,
p = pressure inside the pips
r = pipe radius
= stress of the hoop
Now put the given values to the above equation
So,
t = (800*5) / (10 * [tex]10^{3}[/tex])
= 0.4 in
Hence, the minimum satisfactory thickness for the pipe is 0.4. in
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What can you determine about the feasibility of a reaction if the enthalpy is positive and the entropy is negative?.
The right answer is B. The reaction will never be possible since the Gibbs energy will always be positive.
Gibbs free energy, G, enthalpy, H, and entropy, S are related as follows:
ΔG = ΔH - TΔS
We will always have a positive value for the Gibbs free energy if enthalpy is positive and entropy is negative.
This means that choice B is the best one. A reaction will always be possible if it is exothermic (H is negative), has a positive entropy change (S is positive), and G is always negative. The sign of G determines whether a response (or other physical change) is possible. The reaction cannot take place if G is positive.
The complete question is- What can you determine about the feasibility of a reaction if the enthalpy is positive and the entropy is positive?
A. The Gibbs energy will always be positive, and the reaction will never be feasible.
B. The Gibbs energy will always be negative, and the reaction will always be feasible.
OC. The reaction could be feasible above a certain temperature.
D. The reaction will usually occur because it is unlikely the entropy will be greater than the enthalpy.
Reset Selection
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The op amp in the circuit shown in the figure is ideal. (Figure 1)
a. Calculate vo when vg equals 3.9 V .
b. Find the minimum value of vg so that the op amp operates in a linear mode.
c. Find the maximum value of vg so that the op amp operates in a linear mode.
d. Assume that vg equals 2 V and that the 63 kΩ resistor is replaced with a variable resistor. What value of the variable resistor will cause the op amp to saturate?
The op amp in the circuit shown in the figure is ideal.
a. When vg equals 3.9V, vo = 3.1 v⁻
c. The maximum value of vg so that the op amp operates in a linear mode vg = 4.554 Volt
d. Value of the variable resistor that will cause the op amp to saturate R = 181.76 kΩ
What is circuit?A circuit in electronics is a fully enclosed circuit through which electricity travels. A current source, conductors, and a load make up a basic circuit. Any fixed path that electricity, data, or a signal can travel through can be considered a circuit in a broad sense.
In an electronic circuit, electrons leave the power source, move along conductors, pass through a load to do work, and then return to the power source. The electrons' circular path is why it is called a circuit. Ohm's Law explains how electrical flow and load interact. In a circuit, electrons move from the power supply's negative to positive side.
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if the state of stress at a point is given by determien the stress vector and the magnitude of the normal and shear stress acting on the plane.
T=σ(x)n(x), where σ is the stress tensor and n is the outward unit normal to the surface at x, gives the stress vector t operating on a surface at a point x.
What do you mean by stress tensor?
The stress tensor, also known as the Cauchy stress tensor σ, genuine stress tensor, or simply the stress tensor in continuum mechanics, is made up of nine elements σ[tex]_{ij}[/tex] that collectively characterize the state of stress at a point inside a material that is in a deformed condition, location, or configuration. The stress tensor and traction vector have the SI unit, which corresponds to the stress scalar, N/m2. A unit vector has no dimensions.
Continued Answer:
The stress tensor σ and unit normal n are constant for all x on the plane, as you have already noticed. The tension vector t is therefore given by
t=σn= [tex]\left[\begin{array}{ccc}1&1&0\\1&1&1\\0&1&1\end{array}\right] \left[\begin{array}{ccc}\frac{1}{\sqrt{3}} \\ \frac{1}{\sqrt{3}} \\\frac{1}{\sqrt{3}} \end{array}\right] = \left[\begin{array}{ccc}\frac{2}{\sqrt{3}} \\\frac{2}{\sqrt{3}}\\\frac{2}{\sqrt{3}}\end{array}\right][/tex]
Since n has magnitude 1, the component of t that is perpendicular to the plane, c, can be calculated by
[tex]c = (t . n)n = \frac{7}{3}n[/tex]
The angle θ between the stress vector and the plane's normal is finally given by:
θ = [tex]cosx^{-1} (\frac{t . n}{|t| . |n|}) = cos^{-1}(\frac{7/3}{\sqrt{17}/\sqrt{3}})[/tex]
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select the term related to placing the dimensions in a view where the feature shape is shown. group of answer choices contour dimensioning functional dimensioning reference dimensioning direct dimensioning baseline dimensioning
Contour dimensioning is the therm to put the dimensions in a view where the feature shape is shown. Dimension lines should be placed uniformly throughout the drawing.
Dimension lines refer to smooth, dark, solid lines with arrowheads at each end. It predicts the direction and range of dimensions. In sketches and machine drawings, where fractions and decimals are used for dimensions, dimension lines usually break near the center to perform an open space for the dimension number. Contour dimensioning refers to the act of putting the dimensions in the view where the form (or contour) of the feature perform most clearly.
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Refrigerant-134a enters the condenser of a steady-flow Carnot refrigerator as a saturated vapor at 90 psia, and it leaves with a quality of 0.05. The heat absorption from the refrigerated space takes place at a pressure of 30 psia. Show the cycle on a T-s diagram relative to saturation lines, and determine (a) the coefficient of performance, (b) the quality at the beginning of the heat-absorption process, and (c) the net work input.
The cycle on a T-s diagram relative to saturation lines, and determine the quality at the beginning of the heat-absorption process.
What is heat-absorption ?A form of energy is heat. Heat changes the state of a substance by weakening and rupturing the inter-particle bonds (solid to liquid for example). It is NOT necessary for heat to raise the temperature for a phase transition to occur.When warm red light is shone on a blue object, for instance, it will absorb the light and become warmer than if the same light were shone on a red object and it would reflect it.Stone, cast iron, and aluminum are examples of what are known as "sensitive heat materials," which noticeably heat up when they absorb heat. Our senses instantly inform us of this.To learn more about heat-absorption refer to:
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FILL IN THE BLANK. ___ manages all of the activities involved in creating value by producing goods and services and distributing them to customers.
Operations Management manages all of the activities involved in creating value by producing goods and services and distributing them to customers.
What is Operations Management?
To achieve goals, increase productivity, and boost profits, corporate operations are managed. A subset of management known as operations management is responsible for monitoring a service's or product's entire production process, from the input stage to the finished stage. This entails organizing, planning, and managing operations, service delivery, and manufacturing and production procedures to achieve the desired result of a high-quality good or service that meets customer needs. Operations management oversees the fundamental operations of any organization.
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A conditioned reinforcer that as a result of having been paired w/ many unconditioned & conditioned reinforcers does not depend on a current EO for any particular form of reinforcement for its effectiveness
Generalized Conditioned Reinforcer is a conditioned reinforcer that as a result of having been paired with many unconditioned & conditioned reinforcers does not depend on a current EO for any particular form of reinforcement for its effectiveness.
What is conditioned reinforcer?Previously neutral stimuli are called conditioned reinforcers. The primary reinforcer's associated reinforcement properties are acquired by the neutral stimulus when it is paired with one.
Money is a reinforcer under conditioning. The paper currency itself is not a reinforcing factor. On the other hand, you can buy basic reinforcers like food, water, and shelter with the paper money. By combining the paper bills with the purchase of food, water, and shelter, the bills end up acting as reinforcers.
As a result of the consequences that follow a behavior, an action (operant response) may occasionally be more likely to occur in the future. Reinforcers are things that make it more likely for a behavior to happen again in the future.
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Using a file called rands.txt. It is a file of 10,000 randomly generated numbers between 1 and 100,000.You will:Read in this file, clean the data, convert from strings to integers and then sort the data. At the end of this process you should have a list of sorted integers with a length of 10,000.Make a library called mySearches.py. In this module two functions should reside:bsearch - a function that accepts an integer and a list. The function should conduct a binary search through the list and return the index of the number in the list if the number is found and a -1 if the number is not found. The function should report how many lookups were performed during the search before it returns its value.lsearch - a function that accepts an integer and a list. The function should conduct a linear search through the list and and return the index of the number in the list if the number is found and a -1 if the number is not found. The function should report how many lookups were performed during the search before it returns its value.A main program called lookup.py should import both functions from mySearches.py. In the body of the program you should search for three numbers in the data (78700, 3333, 1118). Output should show if the number was found in the list and how many lookups were needed for each kind of search, even if the number is not found in the list
The Main program to perform the mentioned functionality.
with open('rands.txt') as f:
numbers = f.readlines()
numbers = [int(x.strip()) for x in numbers]
numbers.sort()
print("The sorted list of numbers are:")
print(numbers)
What is Computer Programming ?Computer programming is the process of performing a specific Calculation, usually by designing and building an executable computer program. Programming includes tasks such as analysis, algorithm generation, profiling algorithm accuracy and resource consumption, and algorithm implementation. The program's source code is written in one or more languages. languages that programmers understand, not machine code that is directly executed by the processor. The purpose of programming is to find a set of instructions that automate the execution of a task (which can be as complex as an operating system) on a computer, often to solve a specific problem. Thus, expert programming typically requires expertise in a variety of topics, including application domain knowledge, specialized algorithms, and formal logic.
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Determine whether each relation is an equivalence relation. Justify your answer. If the relation is an equivalence relation, then describe the partition defined by the equivalence classes. (a) The domain is a group of people. Person x is related to person y under relation P if x and y have a common parent (i.e., x and y have the same biological mother or the same biological father or both). You can assume that there is at least one pair in the group, x and y, such that xPy. (b) The domain is a group of people. Person x is related to person y under relation M if x and y have the same biological mother. You can assume that there is at least one pair in the group, x and y such that xMy. (d) The domain is the set of all integers. xEy if x + y is even. An integer z is even if z = 2 k for some integer k.
1. The relation is not an equivalence relation.
2. The relation is an equivalence relation.
3. The relation is an equivalence relation.
How to determine if it is an equivalence relation1. If person x and person y share the same biological mother or father, then x and y also share the same biological mother or father.
If person x and person y share the same same mother or father and if person y shares the same biological mother or father as person z, then it is not necessarily the case that person x shares the same biological mother or father as person z.
2. If person x and person y share the same biological mother, then so does person y.
If person x and person y have the same biological mother and if person y and person z share the same biological mother, then person x must share the same biological mother as person z.
As a result, the relationship P is one of equivalence. All offspring of a single mother are regarded as belonging to the same class.
3. The relation E is an equivalence relation for the set of all even numbers and the set of all odd numbers. there are two equivalence classes as a result.
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by using to reduce emissions, the government can ensure that the marginal benefit of an additional unit of pollution is the same for all polluters.
Because an emissions tax equalizes the marginal benefit of pollution from all sources, it is a more efficient way to reduce pollution than an environmental standard.
What is Pollution?
Pollution is release of hazardous and dangerous materials in the environment. These are the hazardous materials which are referred to as pollutants. Pollutants might be naturally occurring, such as ash of volcano. They could also be caused by many human activity, such as factory runoff and trash. Pollutants have the negative impact on the quality of air, water, and land.
Many things that are useful to people pollute the environment. Pollutants are emitted from automobile exhaust pipes. The use of the coal in order to generate electricity pollutes our environment. Garbage and sewage from industries and homes pollute the land and water. Pesticides, which are chemical poisons used to kill weeds and insects, contaminate waterways and endanger wildlife.
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In sheet metal fabrication, minimum bending radius for AA 6061-0 is: 1) o 2) independent of thickness 3) same for AISI 1008 of equivalent hardness 4) likely to cause cracks inside the bend 5) independent of rolling direction Question 32 (1 point) Cold forming of metals is done at: 1) T/Tm above 0.6 2) above cryogenic temperatures 3) T/Tm just below 0.3 4) exact 120 degree F for aluminum alloys 5) between 0.3 and 0.6 for super and nickel-based alloys Question 33 (1 point) By agreement, sheet metals are defined as such: 1) when one dimension is less than 2.5 mm, and much smaller the other two 2) thin plates are thicker than 2.5 in. 3) less than 5 in. thick plates 4) produced by continuous profile rolling 5) formed in compound dies
For all sheet metal parts, an usual suggestion is 1t, which states that the smallest bend radius must be at least equal to the sheet thickness.
One of the most frequent processes used to generate flanges, curves, seams, etc. in the manufacturing of sheet metal is to bend sheets according to a certain bend radius. In addition, bending gives sheet metal far more strength than its flat equivalents.
An aluminum sheet bent into a V shape, for instance, will be significantly stiffer and stronger than the same flat sheet.
Usually, there are a number of calculations and design specifications involved in bending a metal sheet. If the bend's outside edge is larger than the minimum bend radius, which is commonly defined in terms of the metal sheet thickness (t), such as 1t, 2t, or 3t, the bend's outer edge will crack.
For all sheet metal parts, a usual suggestion is 1t, which states that the smallest bend radius must be at least equal to the sheet thickness. For instance, the minimum bend radius should be 1t, or 2mm, if the sheet is 2mm thick.
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The farmer wants to install a well to supply water for crop irrigation. Where should the well be installed to ensure that the contaminant plume never reverses direction and intersects the home water supply well?.
Groundwater from wells, surface water, drainage ponds, rainwater, and municipal water are the main sources for irrigation water.
Explain about the irrigation water?
By using various tube, pump, and spraying systems, water is artificially applied to the soil during irrigation. In locations where rainfall is erratic, there are frequent dry spells, or a drought is predicted, irrigation is frequently used. Irrigation systems come in a variety of shapes and sizes, and they all supply water to the entire area in an even distribution.
Drinking or preparing meals using irrigation water is not recommended because it is not considered to be safe to consume. An irrigation well is built to preserve the water underneath, and a well contractor will install it so that it is a specific distance from any existing septic systems.
Groundwater and surface water resources are the main sources of irrigation water.
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considering the physical channel structure, why does friction increase or decrease as the wetted perimeter increases?
Friction increase with increasing wetted perimeter. This is because increase in wetted perimeter means more water is coming in contact with surface. This increase the friction. If wetted perimeter is less, only a small portion of the water will come in to contact with surface. This will reduce friction.
What is friction?Friction is experienced by every moving object. Friction is the force preventing an object from sliding against another. Things move more slowly due to friction before coming to a complete stop. Friction makes it possible to move against a surface while driving or walking, which isn't always a bad thing. Friction is a necessary component of movement on Earth.
Applying an equal force in the opposite direction of the object's motion produces friction. The friction is moving against the push force, as shown in the diagram. The friction will cause the book to move more slowly before finally stopping it.
Segment AB: slope = rise /run = (1501-1457)/7920= 0.0055 or 29.33 ft /mile
Segment BC = (1457-1433)/6600 = 0.0036 = 19.2 ft /mile
Segment CD = ( 1433-1421)/5940 = 0.0020 = 10.66 ft/mile
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what is the basic difference between a moment connection and a shear connection in steel frame construction?
Shear connections are dependent mostly on the web of a section, moment connections add to that by strengthening the connectivity of the flanges.
What is moment connection and a shear connection?A joint that permits the transfer of bending moment forces between a column and beam is known as a moment connection in structural engineering (or any other two members). The connection should be able to transmit the load caused by an internal moment in a child member (a beam). Moment connections are employed when non-zero bending moment zones require the splicing of beams or columns or when a high degree of structural indeterminacy is desired.A junction that enables the transfer of shear forces between two parts is known as a shear connection. It is related to either a pure normal force load (tension joint), a pure shear loading, or both normal and shear force. The most often utilized connections are typically shear connections. A shear connection in structural engineering is a joint that enables the transfer of shear forces between two elements. As a result, any internal shear forces present in a child member, such as a beam, will be transferred as an axial force into the column member.To learn more about shear connection refer to:
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below are two variations of the needham-schroeder algorithm. for each variation, state whether the protocol is secure; if it is, present an argument why it is so, if it is not, demonstrate an attack. (note: exclude from consideration attacks that assume eve is able to get the session
As a result, A transmits I her nonce that has been encrypted using I's public key. I contacts B and sends the nonce of A that has been encrypted using B's public key after decrypting the message using their private key.
The fact that I actually sent this mail is unknown to B. With their own nonce, B replies and uses A's public key to encrypt the message. Since I don't have access to A's private key, they must transmit the message to A without knowing what is inside. A responds with the nonce of B encrypted with the public key of I after decrypting the message with her private key.
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A glass cylinder filled with n = 0.91 mol of air is capped with amoveable piston that can slide frictionlessly inside the cylinder.The gas is adiabatically compressed by rapidly slamming thepiston down into the cylinder with a constant force F = 190 Nover a distance of d = 14 cm. What is the change in temper-ature ∆T of the gas? Draw a P V diagram of this process aspart of your representation; make sure it includes the adiabaticprocess, isothermal lines corresponding to the initial and finaltemperatures, and shading that corresponds to the work doneon/by the gas. For the limit check, investigate what happensto ∆T if the piston is pushed only a very short distance intothe cylinder (d →0).a) Please draw an appropriate representation of the problem.b) Write initial equations used, and display them. (There should be 2)c) Solve symbolically through algebraic work and show a symbolic answer.d)Perform a units check.e) As d→0, what limit does ∆T approach?Why does the result make physical sense?f) Plug-in numbers into a symbolic answer and obtain a numerical answer.
The cylinder's surrounds are totally isolated from it. No heat is transferred from the system (cylinder) to its surroundings as a result. The process is adiabatic as a result.
The cylinder's surrounds are totally isolated from it. No heat is transferred from the system (cylinder) to its surroundings as a result. The process is adiabatic as a result.
Inside the cylinder, the starting pressure is P 1.
Internal cylinder pressure at completion =P 2
Initial volume in the cylinder is equal to V 1.
Final internal volume of the cylinder =V 2
Specific heats ratio, = C V/C P
=1.4
We have P for an adiabatic process.
1V /1 γ=P 2V/ 2 γ
Half of the original volume is removed from the final volume.
∴V 2=V 1/2 P
1V 1 γ=P 2(V 1/2) γ
P 2/P 1=V 1 γ/(V 1/2) γ
=2 1.4 =2.639
The pressure thus rises by a ratio of 2.639.
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a) Draw a flow graph to represent the method Fun. Label the nodes (starting with A) and the outgoing edges of the decision boxes appropriately.
b)Identify the set P of paths in the flow graph for Fun and a set of test inputs that satisfy 100% for each of the following criteria. You are required to show trace tables for each set of inputs used to achieve the criteria. If 100% coverage cannot be obtained, explain why.
statement coverage
branch coverage
multiple condition coverage (MCC)
c)Compute the number of basis paths in the flow graph
b) 100 percent cant be achieved by any single set of input. The if and else statements in while loop can be covered in different iteration by example (x=5 k=5 y=-4 covers blocks A, B, C, D, E, F, G, H, J. All except I). The if and else statements outside the while can't be covered simultaneosuly though.
c) Basis path possible (7):
1. A-B-G-H-J
2. A-(B-C-D-F)-B-G-H-J
3. A-(B-C-D-F)-B-G-I-J
4. A-(B-C-E-F)-B-G-H-J
5. A-(B-C-E-F)-B-G-I-J
6. A-(B-C-D-F)-B-C-E-F-B-G-I-J
7. A-(B-C-D-F)-B-C-E-F-B-G-H-J
What is a basis path?Using the control structure of a program or module as a foundation, basis path testing is a white-box testing technique. A control flow graph is created using this structure, and as part of testing, different possible paths that are present in the graph are executed.
Choosing the paths in the control flow graph that offer a foundational set of execution paths through the program or module is a technique known as "basis path testing."
This testing necessitates complete program knowledge because it is based on the control structure of the program. Following four steps, test cases are created using this technique:
Make the Control Flow GraphMake a calculation of the graph's cyclomatic complexity.Choose the Independent Pathsmake test cases using independent pathsLearn more about control flow graph
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A uniform rod having a weight of 10 lb is pin supported at A from a roller which rides on a horizontal track. If the rod is originally at rest, and a horizontal force of F = 15 lb is applied to the roller, determine the acceleration of the roller. Neglect the mass of the roller and its size d in the computations. (ans: aA = 193 ft/s2)
Neglect the mass of the roller and its size d in the computations, the acceleration of the roller, [tex]a_A[/tex] = 193 ft/s². (True)
What is acceleration?Acceleration is a vector quantity because it has both magnitude and direction. It is also the second derivative of position with respect to time or the first derivative of velocity with respect to time.
When the velocity of an object changes, it is said to be accelerated. The velocity of an object can change due to an increase or decrease in speed or a change in direction of motion.
A few examples of acceleration include an apple falling to the ground, the moon orbiting the earth, and a car stopped at a traffic light. Through these examples, we can see that acceleration occurs when the direction of a moving object changes or when its speed increases or decreases.
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in a gas absorption experiment a viscous fluid flows upward through a small circular tube and then downward in laminar flow on the outside. set up a momentum balance over a shell of thickness ar in the film,
In a gas absorption experiment a viscous fluid flows upward through a ... Set up a momentum balance over a shell of thickness Δrin the film,
What is gas absorption experiment ?The previous chapter provided derivations of the relationships for mass and momentum conservation—the equations of motion—in rectangular, cylindrical, and spherical coordinates.All experimental evidence suggests that these are the most fundamental equations of fluid mechanics, and that they govern any situation involving the flow of a Newtonian fluid in principle.Unfortunately, due to their all-encompassing nature, their solution in analytical terms is difficult or impossible to achieve except in relatively simple situations. However, it is critical to understand these "Navier-Stokes equations" for the following reasons:1. They lead to the analytical and exact solution of some simple but important problems, as examples in this chapter will show.
2. They serve as the foundation for future research in other areas of chemical engineering.
3. Making a few realistic simplifying assumptions can often result in approximate solutions that are perfectly acceptable for many engineering purposes. Examples include the study of boundary layers, waves, lubrication, film coating of substrates, and inviscid (irrotational) flow.
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Problem 3: Air enters a compressor operating at steady state at a pressure of 1bar, a temperature of 290K and a velocity of 6m/s through an inlet with an area of 0.1m2. It exits at 7bar and 450K with a velocity of 2m/s. Heat transfer from the compressor to the surroundings occurs at a rate of 180kJ/min. Assuming air behaves as an ideal gas, a) Calculate the power input to the compressor, in kW and sketch the process on a T- diagram. [15] b) Calculate the power input to the compressorn kW utilizing the polynomial approximation for the specific heat at constant pressure of Homework 4, problem 3, part c) [10] Compare and comment
The power input to the compressor, in kW and sketch the process on a T- diagram is -119.56Kw.
What is a compressor?
A compressor is a mechanical device that lowers the volume of a gas in order to raise its pressure. A specific sort of gas compressor is an air compressor.
Pumps and compressors both raise the pressure on a fluid and may move it via a pipe, hence they are comparable. The three most prevalent types of positive displacement air compressors used in small and medium-sized businesses are reciprocating, rotary screws, and vane compressors.
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Create a numpy array of sequential numbers from 0 to and including 99. Ensure the sequential numbers you have created are stored in a numpy multidimensional array of 2 numpy dimensions with a corresponding numpy shape of 20 by 5 elements. You must use the numpy features mentioned in this question to receive credit for this question. Submit your Python script according to the guidelines in this document as a .PY file with the following naming convention: ‘Q5-[ASURITE Id].py', where according to your ASU credentials, you will replace the text [ASURITE Id] in the above naming convention with your ASURITE id credential.
Numerous mathematical operations can be carried out on arrays with NumPy.
It provides a vast library of high-level mathematical functions that work on these arrays and matrices, as well as strong data structures that ensure efficient calculations with arrays and matrices. Shape, an attribute of NumPy arrays, returns a tuple containing the number of corresponding elements for each index. The bincount(arr) method in the numpy module of Python returns a count of the number of times each value in an array of non-negative ints has occurred. Every element in a NumPy array has the same data type. itemsize gives the size of each element of a NumPy array in bytes. For instance, the itemsize for this NumPy array [[3,4,6], [0,8,1]]
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the fraction recrystallized-time data for the recrystallization at 350 of a previously defomred aluminim are tabulated here.
The fraction recrystallized after a total time of 116.8 min is 0.66.
What is recrystallization?The process of recrystallizing an impure compound in a solvent is also referred to as fractional crystallization. Based on the idea that most solids become more soluble at higher temperatures, the purification process was developed. The amount of solute that can dissolve in a solvent increases as temperature rises, according to this.
On the basis of the information provided in the problem, we will set up two simultaneous equations with two unknowns:
[tex]1n(1n - \frac{1}{1-0.3} ) = 1nk + n 1n \ 95.2[/tex]
[tex]1n(1n - \frac{1}{1-0.8} ) = 1nk + n 1n \ 126.6[/tex]
Using your calculator you should get values of n = 5.3 and
k = 1.2 × 10⁻¹¹
From these values we can now solve for the fraction recrystallization from:
[tex]y = 1 - e^{kt^n}[/tex]
[tex]= 1 - e^{-1.2\times 10^{-11}\times (116.8)^{5.3}[/tex]
= 0.66
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Determine the product of inertia for the beam's cross-sectional area with respect to the u and v axes. Given that theta= 28 degrees.
I_uv=
An object's Product of Inertia (POI) characteristic specifies an imbalance with respect to a certain set of coordinate axes.
What is a product of inertia?An object's Product of Inertia (POI) characteristic specifies an imbalance with respect to a certain set of coordinate axes. The POI in all three planes is zero if the object's mass is distributed symmetrically with regard to the XY, YZ, and ZX planes.A vertical two-plane spin balance machine may be used to measure the product of inertia directly (POI series). Spin balance devices rotate the cargo around a predetermined axis and look for any imbalances that are produced. This approach to calculating the product of inertia is by far the most accurate.Once more using frame O2, the primary axes are mentioned in the moment of inertia matrix, and the inertia products are zero.Find the attachment answer
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D 8.64 For a cascode current source such as that in Fig. 8.30, show that if the two transistors are identical, the current I supplied by the current source and the output resistance R. are related by IR, = 2 y.P/\Vov). Now consider the case of transistors that have v.] = 3 V and are operated at |Vorl of 0.15 V. Also, let „Cox = 100 mA/V?. Find the WIL ratios required and the output resistance realized for the two cases: (a) I = 50 u A and (b) I = 200 u A. Assume that Vy for the two devices is the minimum required (i.e., | Vov]).
The W/L ratios required and the output resistance realized for the two cases are:
(a) ) I = 50 u A Ans) W/L = 44.44
(b) I = 200 u A Ans) W/L = 178.77
What is resistance?The amount of resistance in an electrical circuit represents the resistance to current flow.
The Greek letter omega (Ω), which represents resistance, represents ohms. German physicist Georg Simon Ohm (1784–1854), who investigated the connection between voltage, current, and resistance, is the name given to the unit of resistance known as an ohm. Ohm's Law was developed under his direction.
To some extent, every material impedes the flow of current. One of two broad categories that they fit into is:
Electrons can easily move through materials called conductors because they offer very little resistance. Copper, gold, silver, and aluminum are some examples.High resistance and restriction of electron flow are characteristics of insulators. Plastic, rubber, glass, paper, and rubber are some examples.Learn more about resistance
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8.19 lab*: program: soccer team roster (dictionaries) this program will store roster and rating information for a soccer team. coaches rate players during tryouts to ensure a balanced team. (1) prompt the user to input five pairs of numbers: a player's jersey number (0 - 99) and the player's rating (1 - 9). store the jersey numbers and the ratings in a dictionary. output the dictionary's elements with the jersey numbers in ascending order (i.e., output the roster from smallest to largest jersey number). hint: dictionary keys can be stored in a sorted list. (3 pts) ex: enter player 1's jersey number: 84 enter player 1's rating: 7 enter player 2's jersey number: 23 enter player 2's rating: 4 enter player 3's jersey number: 4 enter player 3's rating: 5 enter player 4's jersey number: 30 enter player 4's rating: 2 enter player 5's jersey number: 66 enter player 5's rating: 9 roster jersey number: 4, rating: 5 jersey number: 23, rating: 4 jersey number 30, rating: 2 ...
Python script to create a soccer team roster (dictionaries) Roster and rating data for a soccer team will be saved by this software. To establish a balanced squad, coaches evaluate athletes during tryouts.
pdict={}#dictionary
for i in range(1,6):#Written in Python script.
print("Enter player "+str(i)+"'s jersey number:")
key=int(input())
print("Enter player "+str(i)+"'s rating:")
value=int(input())
pdict[key]=value
print("Roster")
for i in sorted(pdict):#printing the values in dictionary
print("Jersey number: "+str(i)+", Rating: "+str(pdict[i]))
while(1):#menu
print("a-Add player")
print("d-Remove player")
print("u-Update player rating")
print("r-Output players above a rating")
print("o-Output roster")
print("q-Quit")
print("\nChoose an option:")
n=input()#loop control variable
if(n=="o"):#output the roster
print("Roster")
for i in sorted(pdict):
print("Jersey number: "+str(i)+", Rating: "+str(pdict[i]))
elif(n=="a"):#adds a new player
print("Enter a new player's jersey number:")
key=int(input())
print("Enter the player's rating:")
value=int(input())
pdict[key]=value
elif(n=="d"):#delete a player
print("Enter a jersey number:")
key=int(input())
pdict.pop(key)
elif(n=="u"):#updates a player's rating
Print("Enter a jersey number:")
key=int(input())
print("Enter a new rating for player:")
value=int(input())
pdict[key]=value
elif(n=="r"):#prints ratings above a particular value
print("Enter a rating:")
rating=int(input())
print("Above "+str(rating))
for i in sorted(pdict.items(),key=lambda x:x[1],reverse=True):
if(i[1]>rating):
print("Jersey number: "+str(i[0])+", Rating: "+str(i[1]))
else:#exits the program
exit(0)
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424, Variation of Thermal Conductivity. A flat plane of thickness Δx has one surface maintained at T and the other at T. If the thermal conductivity varies according to temperature as where a, b, and c are constants, derive an expression for the one-dimensional heat flux q/A
Free electron density and lattice vibrations both rise with temperature. Thus, it is anticipated that the metal will become more thermally conductive.
Explain about the variable for thermal conductivity?A linear relationship between temperature and the variable thermal conductivity is used to express it. In the context of photo-generated processes in semiconductor media, the governing equations take into account the overlapping of elastic, thermal, and plasma waves.
The employed wire's composition—copper, aluminium, or steel—is the independent variable. The heat conductivity of the wires is the dependent variable. The digital infrared thermometer is used to measure the wires' temperature in order to make this determination.
It will have internal energy if a thermodynamic system is in a condition of thermal equilibrium. A variable will be the system's internal energy.
With temperature, thermal conductivity rises. The insulating medium (the air or gas inside the voids) becomes more excited as its temperature rises, which improves convection inside or between the voids and increases heat movement.
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Name and define k, kc, and kic. explain the differences and the conditions under which each parameter applies. state the units for each parameter.
The differences and the conditions between k , kc & k1c under which each parameter applies is :
K - stress intensity factor. serves as a scale factor to define the magnitude of the crack-tip stress field. It is measured in MPa m1/2. Kc - critical stress intensity factory.KIc is the fracture toughness under plane strain.What is the difference between K - stress intensity factor & Kc - critical stress intensity factory ?K - stress intensity factor - The fracture strength of a material with a crack is determined using the critical stress intensity factor. The critical stress intensity factor of a ductile material is not a constant value like certain other material properties like elastic modulus; rather, it varies with the thickness of the material.The local stress conditions at the tip of an infinitely acute fracture in an elastic material are measured by the linear elastic stress intensity factor, or KI. Kc - critical stress intensity factory - The important stress intensity component K1C describes a material's resistance to fracture extension. The term "fracture strength" also applies to the stress intensity component. The determination of the material characteristic value of fracture mechanics under cyclic loading with constant amplitude is covered in ASTM E399, which is a standard.The essential stress intensity factor for the rapid development of cracks under specific conditions is known as the fracture toughness KC of a material. Such fracture propagation will be instantaneously catastrophic under prescribed-load boundary circumstances.Learn more about k, kc, and kic refer to :
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the control circuit must produce an output of 1 if at least two of the conditions 1,2 and 3 are true. design the simplest circuit that can be used for this purpose.
The simplest circuit that can be used for the control circuit must produce an output of 1 if at least two of the conditions 1,2 and 3 are true is given below.
What is control circuit?A special kind of circuit known as a control circuit is used to regulate the performance of a totally independent power circuit. Think about a water pump being driven by a 1,000 horsepower, large industrial motor. A high voltage electrical source with a 2,400 volt output is connected to the motor.
For the safety of the operator and the machinery, a control circuit is used to ensure that the motor is started and stopped safely.
The thermostat for a home's air conditioner is an illustration of a control circuit that is frequently used. The thermostat is a component of a low-voltage control circuit that manages a relay that actually activates and deactivates the power circuit to the air conditioner compressor.
See the given attachment below for the simplest circuit↓↓
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construction type in which structural members including walls, columns, beam, floors, and roofs are made of noncombustible materials or limited combustible materials and have a specified degree of fire resistance
The outside walls and structural parts of Type III building, commonly referred to as ordinary construction, must be composed of noncombustible or minimally combustible materials like concrete blocks.
Type 1 constructions, which are the most fire-resistant buildings, are made of shielded steel and concrete because they can sustain high temperatures without collapsing. The highest quality non-combustible materials, such as poured concrete and fire-resistant steel framing, are used to construct Type I buildings, which are rated to withstand fires for two to three hours. The greatest levels of safety are offered by this rating. Type I buildings, which are rated to withstand fires for two to three hours. The greatest levels of safety are offered by this rating.
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an air-standard dual cycle has a compression ratio of 1.4 and a cutoff ratio of 1.2. the pressure ratio during the constant-volume heat addition process is 1.5. determine the thermal
The thermal efficiency is determined from the heat output using the energy balance in 4-1 and expressing the temperature at state 4 through the compression and cut-off ratios, therefore the thermal efficiency η = 0.646
What is thermal efficiency?A device that uses thermal energy, such as an internal combustion engine, steam turbine, steam engine, boiler, furnace, refrigerator, or air conditioners, has a performance measure known as thermal efficiency that is dimensionally indeterminate.
Thermal efficiency, also referred to as the coefficient of performance, in the case of a heat pump is the ratio of net heat output (for heating) or net heat removed (for cooling) to the energy input. Thermal efficiency in the case of a heat engine is the ratio of the net work output to the heat input (external work).
Since the output is always less than the input, a heat engine's efficiency is fractional, whereas a heat pump's COP is greater than 1. By applying the Carnot theorem, these values are further constrained.
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