a single phase load is operated at a leading power factor of 0.91 and draws 15 amps when 230 volts are applied. calculate the complex impedance in ohms.
Answers
As a result, the load has a complicated resistance of 15.33 ∠ 24.14 ohms.
What does impedance look like?As an illustration, a vector from of the origin to the spot on the surface that corresponds to 4 + j5 is used to represent a complex impedance that consists of 4 ohms of impedance and +edition ohms of inductance. This is the same as connecting an up from the current resistor in line with an inductor that has a reactance of +j211. 5 ohms.
What are impedance and what is its SI unit?The term "impedance" (sign Z) describes how much a circuit obstructs the passage of charge or how much resistance it has to current. It is comparable to resistance but also accounts for capacitance and inductance. The measurement method for resistance is an ohm (ohm).
To calculate the complex impedance of the load, we can use the following formula:
Z = V/I
where Z is the complex impedance in ohms, V is the voltage in volts, and I is the current in amps.
First, we need to calculate the real power (P) and reactive power (Q) of the load. We know that the power factor (PF) is leading and has a value of 0.91. Therefore, we can use the following formulas:
PF = cos(θ)
Q = P tan(θ)
where the degree of phase between the voltage and the current is.
cos(θ) = 0.91
θ = cos⁻¹ (0.91) = 24.14 degrees
P = VI cos(θ) = 230 x 15 x 0.91 = 3,285.5 watts
Q = P tan(θ) = 3,285.5 tan(24.14) = 1,339.5 VAR (volt-amperes reactive)
Now we can calculate the apparent power (S) of the load:
S = VI = 230 x 15 = 3,450 VA (volt-amperes)
Finally, we can calculate the complex impedance of the load:
Z = V/I = 230 / 15∠(-24.14) = 15.33∠24.14 ohms
Therefore, the complex impedance of the load is 15.33∠24.14 ohms.
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The answer of the given question is ,the complex impedance of the single-phase load is 15.33 + j4.71 ohms.
What is Complex impedance?Complex impedance is a measure of the resistance and reactance of an electrical circuit or device to an alternating current (AC) signal. It is a complex number that includes both a real part and an imaginary part.
The real part of the complex impedance represents the resistance of the circuit or device, which is the opposition of the circuit to the flow of current. The imaginary part represents the reactance, which is the opposition of the circuit to the change in the flow of current.
To calculate the complex impedance of the single-phase load, we can use the following formula:
Z = V/I * cos(theta) + j(V/I * sin(theta))
where Z is the complex impedance in ohms, V is the applied voltage in volts, I is the current in amps, and theta is the phase angle between the voltage and current.
we can calculate the phase angle as:
theta = cos^-1(pf) = cos^-1(0.91) = 23.13 degrees
Substituting the given values int the formula, we will get,
Z = 230/15 * cos(23.13) + j(230/15 * sin(23.13))
= 15.33 + j4.71
Therefore, the complex impedance of the single-phase load is 15.33 + j4.71 ohms.
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Related Questions
Kirby is conducting a literature review in preparation for his study of “expectations regarding the sharing of financial and practical responsibilities among married and cohabiting couples in which both partners are between the ages of 20 and 29.” Conducting a keyword search on “couples” and “responsibility,” Kirby has generated a lengthy list of research articles. He decides to shorten the list of potential articles by eliminating all articles that were not published in prestigious research journals. He will include all the remaining articles in his literature review. What is your opinion of Kirby’s approach to selecting articles for the literature review?
Answers
Answer:
My opinion towards Kirby's approach in choosing articles for literature reviews is that, it is not the considered a good approach because when choosing articles based only on Journal it can't be considered the best.
Various methods needs to be considered by Kirby's before selecting articles, which are stated in the explanation section below
Explanation:
Solution:
Kirby’s method in choosing articles is not regarded to be a better proposal because choosing articles with regards to the journal can’t be seen as good. There are other things that should to be taken into consideration by Kirby which is explained below:
It is also important to confirm the editors who are in charge of the journals. It is advisable to view the profile of the editors in various links such as LinkedIn, Google scholar, before choosing their articles.It is very important to stay away from people who might find a way to exploit this situation. some research articles may be produced just for the aim of making money & there might exist no good quality information that is needed by the researcher for conducting his research.A proper journal is the one that produces work on the journal that the paper addresses & it is the one that presents the researcher’s needs through its authenticity and aspirations.Some particular journals are regarded to offer good source of information for research. examples are Thomson Reuters website etc.The various information produced aside from quality, is also important to consider when choosing the source of information that the article presents.the most notable aspect in managing C/N for downlink designs is
Answers
Answer:
Explanation:
In satellite communications, downlink is the establishment of a communications link from an orbiting satellite down to one or more ground stations on Earth. Contrast with uplink.
A ___ is a device that has a stand leg piped to the top and bottom of a boiler or other pressure vessel.
Answers
A bridle is a device that has a stand leg piped to the top and bottom of a boiler or other pressure vessel.
The force delivered perpendicularly to an object's surface per unit area across which that force is dispersed is known as pressure. In comparison to the surrounding pressure, gauge pressure is the pressure. Pressure is expressed using a variety of units. Usually, pressure is expressed as a force per unit of surface area. The SI unit for measuring pressure is the pascal, and the sign for pressure in physical science is pa. One Newton per square meter of force exerted perpendicularly on a surface is equal to one pascal. In order to assess the product's consistency and quality, it's critical to collect precise data. For these reasons, precise sensors are essential for gathering this data.
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Considering the suggested temperature limit of 85o C for Si-based electronic chips, evaluate and explain the results you found in the four cases. • Based on these preliminary results, how would you use FEA analysis to further improve the results? Which particular parameters could be studied?
Answers
Case D is the best option for the Si-based electronic chip, as it has the lowest maximum temperature.
How to explain the informationAs can be seen, Case D is the best option for the Si-based electronic chip, as it has the lowest maximum temperature. This is because the heat sink, fan, and thermal grease all help to dissipate heat from the chip.
FEA analysis can be used to further improve the results by studying the following parameters:
The size and shape of the heat sinkThe number of fins on the heat sinkThe speed of the fanThe type of thermal grease usedBy studying these parameters, it is possible to design a heat sink that will dissipate heat more effectively and keep the chip at a lower temperature.
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The four cases are as follows:
Case A: No heat sink
Case B: Heat sink with fins
Case C: Heat sink with fins and fan
Case D: Heat sink with fins, fan, and thermal grease
The results of the FEA analysis are as follows:
Case A: The maximum temperature is 100°C.
Case B: The maximum temperature is 85°C.
Case C: The maximum temperature is 80°C.
Case D: The maximum temperature is 75°C.
Considering the suggested temperature limit of 85o C for Si-based electronic chips, evaluate and explain the results you found in the four cases. • Based on these preliminary results, how would you use FEA analysis to further improve the results? Which particular parameters could be studied?
List three specific clothing items that should not be worn in a machining setting.
Answers
Answer:
sandals, gloves, necklaces
Explanation:
sandals, gloves, necklaces
A fluid inlet to a mixing tank at a rate of 2.2 kg/min and NaCl added to the tank at a rate of 0.2 kg/min. The outlet fluid from the tank is at a rate of 2 kg/min. Initially the tank containing 8 kg of the fluid. Determine the concentration inside and outside the tank at time of 2 minutes.
Answers
At time t=2 min, the concentration inside the tank is 0.042 kg/kg and the concentration outside the tank is 0.476 kg/kg.
How did we get the values?To determine the concentration inside and outside the tank at 2 minutes, we need to use the mass balance equation:
mass in - mass out + mass generated = change in mass in the tank
At time t=0, the mass in the tank is 8 kg, and there is no mass generated. Thus, we have:
(2.2 + 0.2) kg/min - 2 kg/min + 0 kg/min = dM/dt
Simplifying, we get:
dM/dt = 0.4 kg/min
Integrating both sides, we get:
M(t) = M(0) + (dM/dt) * t
Plugging in the values, we get:
M(2) = 8 kg + (0.4 kg/min) * 2 min = 9.6 kg
Now, we can calculate the concentration inside and outside the tank:
Concentration inside the tank:
At time t=0, the concentration inside the tank is:
Cin(0) = 0 kg/kg (since there is no salt in the tank initially)
At time t=2 min, the amount of salt in the tank is:
Min(2) = 0.2 kg/min * 2 min = 0.4 kg
Thus, the concentration inside the tank is:
Cin(2) = Min(2) / M(2) = 0.4 kg / 9.6 kg = 0.042 kg/kg
Concentration outside the tank:
The rate of salt leaving the tank is 2 kg/min, and at time t=2 min, the total amount of salt leaving the tank is:
Mout(2) = 2 kg/min * 2 min = 4 kg
Thus, the amount of salt remaining in the tank is:
Mrem(2) = M(0) + Min(2) - Mout(2) = 8 kg + 0.4 kg - 4 kg = 4.4 kg
The total mass leaving the tank is 2 kg/min * 2 min = 4 kg. Thus, the concentration outside the tank is:
Cout(2) = Mout(2) / (M(0) + Min(2)) = 4 kg / 8.4 kg = 0.476 kg/kg
Therefore, at time t=2 min, the concentration inside the tank is 0.042 kg/kg and the concentration outside the tank is 0.476 kg/kg.
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Prove that the center of pressure of a completely sub-merged plane surface is always below the center of gravity of the sub-merged surface or at most coincide with the center of gravity when the plane surface is horizontal.
Answers
The location at which the joined forces of a pressure distribution on a wholly submerged plane surface counteracts is determined by its shape, orientation, and furthermore the pressure composition.
How to show this?To exemplify, when a plane surface displays an evenly distributed pressure around its center of gravity, then the center of pressure will be found beneath the center of gravity when the surface inclines.
Yet, if the same plane surface remains horizontal, the pressure arrangement will remain homogenous and thus the two centers merge. Generally speaking, the center of pressure stands below, or at most level with, the center of gravity when the plane surface is straight.
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From your own point of view, what can be done to improve the different engineering processes that will impact the environment less negatively? Give examples and write a 500-word essay. Use Passive in
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Engineering processes can be improved to minimize their negative impact on the environment by implementing sustainable practices, incorporating cleaner technologies, and adopting efficient resource management strategies.
How can engineering processes be enhanced to reduce their environmental impact?To mitigate the adverse effects of engineering processes on the environment, it is crucial to embrace sustainable practices that prioritize environmental conservation and resource preservation. One key aspect is the adoption of cleaner technologies, such as renewable energy sources and low-emission manufacturing processes. For instance, transitioning from fossil fuel-based energy to solar or wind power can significantly reduce greenhouse gas emissions. Additionally, implementing advanced filtration systems and treatment methods can minimize the release of harmful pollutants into the air or water.
Efficient resource management is another essential factor in reducing environmental impact. This involves optimizing the use of materials and minimizing waste generation throughout the engineering lifecycle. Engineers can achieve this by employing techniques like life cycle assessment, which assesses the environmental impact of a product or process from its creation to disposal. By identifying areas of inefficiency or waste generation, engineers can design more sustainable solutions that prioritize resource conservation and minimize environmental harm.
Moreover, fostering innovation and collaboration among engineers, scientists, and policymakers is crucial for driving positive change. By promoting interdisciplinary research and knowledge sharing, stakeholders can collectively identify and implement innovative solutions that address environmental challenges. For example, engineers can develop technologies that capture and store carbon emissions or design eco-friendly materials with reduced environmental footprints.
In conclusion, improving engineering processes to minimize their negative environmental impact requires a multifaceted approach. By embracing sustainable practices, incorporating cleaner technologies, and implementing efficient resource management strategies, engineers can contribute to a more sustainable and environmentally friendly future.
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Docker containers give the exact same isolation properties as Type 2 Virtual Machines True False
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False,It is false that Docker containers give the exact same isolation properties as Type 2 Virtual Machines.
Docker containers give similar isolation properties as Type 2 Virtual Machines, but not the same. The most significant difference between the two is that Type 2 VMs use hardware virtualization to simulate a complete system, whereas Docker utilizes kernel virtualization to use the host's system resources and restrict container access to the host's resources.Docker containers can run on a shared operating system kernel, which provides better isolation than a Type 2 VM, where each virtual machine has its kernel. Containers are substantially lighter than virtual machines and can run several instances on a single host without putting too much load on it.
Docker containers do not provide the exact same isolation properties as Type 2 Virtual Machines. They offer similar isolation properties as Type 2 Virtual Machines, but there is a significant difference between the two. Type 2 VMs use hardware virtualization to simulate an entire system, while Docker uses kernel virtualization to use the host's system resources and limit container access to host resources. Docker containers run on a shared operating system kernel, providing better isolation than Type 2 VMs, where each virtual machine has its kernel. Containers are significantly lighter than virtual machines and can run several instances on a single host without overloading it.
Therefore, it can be concluded that the statement "Docker containers give the exact same isolation properties as Type 2 Virtual Machines" is false. Docker and Type 2 VMs provide similar isolation properties, but Docker has some advantages over Type 2 VMs in terms of resource utilization and load management.
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need urgent help!!
Determine the point(s) P on the line e with equation x−6 = ( y−3)/4 = ( 1−z)/3
for which the line connecting P with Q(2, −6, 5) is perpendicular to e.
Answers
The quartiles divide a set of observations into four portions, each representing 25% of the observations, together with the minimum and maximum values of the data set. The interquartile range, a measurement of variation around the median, is calculated using quartiles.
How are quartiles determined?In order to quartile a set of data with n items (numbers), we choose the n/4th, n/2nd, and n/4th items. Interpolation between the adjacent items is used if indexes n/4, n/2, or 3n/4 are not integers.For instance, the first quartile Q1 of ordered data is the 25th item, the second quartile Q2 is the 50th item, and the third quartile Q3 is the 75th item. The fourth quartile Q4 would be the highest item of data, and the zeroth quartile Q0 would be the minimum item; however, these extreme quartiles are referred to as the minimum and maximum of a set, respectively.Calculation:Statistical file: {2, -6, 5}
Quartile Q1: -6
Quartile Q2: 2
Quartile Q3: 5.
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A "calorie" is a unit of energy, defined as the amount of energy needed to raise the temperature of one gram of water by one degree Celsius. The nutritional labels on food products typically tell you how many calories of digestible energy are in one serving of food, where "digestible" means that the energy stored in the chemical bonds of the molecules comprising the food can be extracted by your body. (Water for example has energy, but that energy is not chemically accessible via digestion.) To simplify understanding for typical consumers, the "calories" reported on nutritional labels actually represent kilocalories: a 170 calorie can of beer actually contains 170,000 calories of digestible energy i) If a student foolishly decides to binge drink 21 beers on their 21t birthday, how many gallons of water could they have heated from room temperature (24 °C) to boiling (100 C) using an equivalent amount of digestible energy in the beer? Recall that one gallon of water is roughly 8 pounds ii) What is this energy equivalent to in BTU? A "BTU" or British Thermal Unit is also a unit of energy, defined as the amount of energy needed to raise the temperature of one pound of water by one degree Fahrenheit iii) If you had purchased an equivalent amount of electrical energy in kW-hr from the utility company, how much would you have to pay? Is this cheaper than buying beer? A kW-hr ypically costs 10 cents
Answers
Answer & Explanation:
i) If a student foolishly decides to binge drink 21 beers on their 21st birthday, they would consume a total of 21 x 170 = <<21*170=3570>>3570 calories of digestible energy. Since one calorie is equivalent to raising the temperature of one gram of water by one degree Celsius, and one gallon of water is equivalent to 3,785 grams, the student would have consumed enough energy to raise the temperature of 3,785 grams x 3570 calories = 13,678,950 calories of water from 24 °C to 100 °C. This means that the student could have heated 13,678,950 / 100 = <<136789500/100=136789.5>>136789.5 grams of water from room temperature to boiling, which is equivalent to 136789.5 / 3,785 = <<136789.5/3785=36.19>>36.19 gallons of water.
ii) The energy equivalent of the beer consumed by the student is 3570 calories x 4.184 joules/calorie = 14,889.48 joules. Since one BTU is equivalent to 1,055 joules, this energy is equivalent to 14,889.48 joules / 1,055 joules/BTU = <<14889.48/1055=14.15>>14.15 BTU.
iii) If the student had purchased an equivalent amount of electrical energy from the utility company, they would have to pay 14.15 kW-hr x $0.10/kW-hr = $<<14.15*0.1=1.42>>1.42. This is cheaper than buying beer, as a can of beer typically costs more than $1.42.
a c-section specimen is designed to tolerate a stress-concentration factor for 1.75. calculate the allowable normal strength in the c-section if the material used to make the section has a yield strength of 84 kpsi.
Answers
The allowable normal strength in the c-section is 48000 pounds per square inch.
The allowable stress depends on both the factor of safety imposed on the object and the yield strength or stress at which an object will be permanently damaged. To calculate the allowable normal strength we can divide the yield strength by the factor of safety.
To determine the allowable normal strength output we can use this equation below:
The allowable normal strength = The number yield strength : A stress-concentration factor
The number yield strength is 84 kpsi.
Then convert kpsi to psi : 84 kpsi = 84000 psi
A stress-concentration factor is 1.75
The formula to find allowable normal strength output is:
84000 psi : 1.75 = 48000
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Consider a sphere made of stainless steel with diameter of 25 cm. It is heated to temperature of 300°C for some chemical tests. After finishing the tests, the sphere is cooled by exposing it to a flow of air at 1 atm pressure and 25°C with a velocity of 3 m/s. By the end of cooling process, the sphere's temperature drops to 200°C. The rate of heat transfer loss due to convection is closest to:__________.
a) 485 W
b) 513 W
c) 88 W
d) 611 w
Answers
Answer:
263.69 W.
(None of the option).
Explanation:
So, from the question above we are given the following parameters or data or information which is going to allow us to solve this question and they are;
(1). diameter of 25 cm.
(2). Initial temperature of 300°C.
(3).temperature drops to 200°C = final temperature.
Step one: Calculate the Reynolds number.
Reynolds number = 3 × 0.25/1.562 × 10^-5 = 48015.365.
Step two: Calculate average heat transfer coefficient.
The average heat transfer coefficient = k/D { 2 + (0.4Re^1/2 + 0.06Re^2/3} px^0.4 × (u/uz)^1/4.
The average heat transfer coefficient = 0.10204 × [ 2 + (87.65 + 79.26) (0.8719) × 0.8909.
average heat transfer coefficient = 0.20204 ( 2 + 129.652).
average heat transfer coefficient = 13.43/m^2.k.
Step three: The rate of heat transfer loss due to convection = (average heat transfer coefficient ) × πD^2 × ( T1 - T2).
The rate of heat transfer loss due to convection= 13.43 × π(0.25)^2 × (300 - 200).
=>The rate of heat transfer loss due to convection = 263.69 W.
water is to be pumped from the large tank shown with an exit velocity of 6 m/s. it was determined that the original pump (pump 1) that supplies 1 kw of power to the water did not produce the desired velocity. it is proposed that an additional pump (pump 2) be installed as indicated to increase the flowrate to the desired value. how much power (in kw) must pump 2 add to the water? the head loss for this flow is hl
Answers
Pump 2 must add approximately X kW of power to the water.
To determine the power required by Pump 2, we need to consider the change in kinetic energy of the water as it exits the tank. The kinetic energy can be calculated using the formula:
Kinetic Energy = (1/2) * mass * velocity^2
Since the water has an exit velocity of 6 m/s, we can calculate the initial kinetic energy. We are given that Pump 1 supplies 1 kW of power, so we can use this information to find the flow rate (Q) in kg/s using the equation:
Power (P) = Q * Head Loss (hl) * g
We know the velocity (V) is equal to the flow rate (Q) divided by the cross-sectional area (A) of the tank. Therefore:
Q = A * V
By substituting this equation into the power equation, we can solve for the flow rate Q:
1 kW = (A * V) * hl * g
Once we have the flow rate, we can determine the mass of water (m) using the equation:
mass = Q * density
With the mass and the exit velocity, we can calculate the initial kinetic energy. To achieve the desired velocity, the kinetic energy must increase. The additional power required by Pump 2 can be calculated by finding the difference between the final and initial kinetic energies.
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when assembling various shaped pieces together without marring the workpiece, use a A. chain clamp
B. chain wrench
C. spanner wrench
D. strap wrench
Answers
Answer:
Strap wrench (I think)
Explanation:
The strap doesnt have any rough edges so it shouldn't mark the workpiece (assuming that is what you meant when you said 'marring'). I would recommend to wait for some other answers though since i haven't studied this yet :)
Type the correct answer in the box. Spell all words correctly.
A genetically engineered hormone, , can treat Mary’s child for growth hormone deficiencies by stimulating body growth and increasing muscle mass.
Answers
Answer:
recombinant human growth
Explanation:
Answer:
recombinant human growth
Explanation:
yes
on older mac oss all information about the volume is stored in the ____
Answers
On older Mac OSs, all information about the volume is stored in the "Volume Information Block" or "VIB."
The Volume information block (VIB) contains information about the complete file system on this volume. It is located in the first sector of the volume. The VIB takes the role both of the volume specifier and of the root directory specifier. The volume header is a data structure located at the beginning of the volume that contains important information about the volume, such as its size, file system type, partition map, and other metadata. This information is used by the operating system to mount the volume and access its contents.
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Brainiest 4 Brainiest? (b4b)
Answers
huhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
Answer:
?
Explanation:
what do you mean
List and describe three classifications of burns to the body.
Answers
AnswerWhat Are the Classifications of Burns? Burns are classified as first-, second-, or third-degree, depending on how deep and severe they penetrate the skin's surface. First-degree burns affect only the epidermis, or outer layer of skin. The burn site is red, painful, dry, and with no blisters.
Explanation:
Answer:
AnswerWhat Are the Classifications of Burns? Burns are classified as first-, second-, or third-degree, depending on how deep and severe they penetrate the skin's surface. First-degree burns affect only the epidermis, or outer layer of skin. The burn site is red, painful, dry, and with no blisters.
Explanation:
I am trying to create a line of code to calculate distance between two points. (distance=\(\sqrt{ (x2-x1)^2+(y2-y1)^2}) My line is point_dist = math.sqrt((math.pow(x2 - x1), 2) + math.pow(y2 - y1), 2) but I am getting an error saying that pow is expecting two arguments and is only getting one. Can anyone help me?
Answers
Answer:
point_dist = math.sqrt((math.pow(x2 - x1, 2) + math.pow(y2 - y1, 2))
Explanation:
The distance formula is the difference of the x coordinates squared, plus the difference of the y coordinates squared, all square rooted. For the general case, it appears you simply need to change how you have written the code.
point_dist = math.sqrt((math.pow(x2 - x1, 2) + math.pow(y2 - y1, 2))
Note, by moving the 2 inside of the pow function, you have provided the second argument that it is requesting.
You were close with your initial attempt, you just had a parenthesis after x1 and y1 when you should not have.
Cheers.
Where is the Tailfin on a plane?
Answers
Answer:
on the tail
Explanation:
Answer:
on the tailfin
Explanation:
1. The construction process begins with which of the following stages?
a) establishing the foundation
b) enclosing the building
c) site preparation
d) installing underground utilities
Answers
Answer:
c) site preparation
Explanation:
A construction process can be defined as a series of important physical events (processes) that must be accomplished during the execution of a construction project.
Generally, in the construction of any physical asset such as offices, hospitals, schools, stadiums etc, the first step of the construction process is site preparation. Site preparation refers to processes such as clearing, blasting, levelling, landfilling, surveying, cutting, excavating and demolition of all unwanted objects on a piece of land, so as to make it ready for use.
This ultimately implies that, site preparation should be the first task to be accomplished in the construction process.
Hence, the construction process typically begins with site preparation before other activities such as the laying of foundation can be done.
Additionally, construction costs can be defined as the overall costs associated with the development of a built asset, project or property. The construction costs is classified into two (2) main categories and these are; capital and operational costs.
6.
A mobile welding machine of mass 80 kg was rolling freely on a horizontal surface
at speed of 5 m/s when locks to its castor wheels are applied, causing all four wheels
to stop rotating. The machine skidded a distance s-4 m before coming to rest.
Determine
the magnitude of normal reaction of each wheel
(b) the coefficient of kinetic friction between the wheels and the ground.
Answers
The magnitude of reaction for the wheel is 250 N. The coefficient of kinetic energy between the wheel and ground is 0.32.
What is friction?
The friction is given as the stop force acted by the surface to the moving object.
For the calculation of magnitude of normal reaction:\(v^2=u^2+2as\)
Substituting the values of the initial velocity (u), final velocity (v) and the distance (s) at the contactless surface, the acceleration is given as:
\(0=(5)^2+2a\;\times\;4\\a=3.125\;\rm m/s^2\)
The force can be given as:
\(F=ma\\F=80\;\text{kg}\;\times\;3.125\; \rm {m/s^2}\\\textit F=250\;N\)
The magnitude of reaction for the wheel is 250 N.
The coefficient of friction (\(\mu_k\)) is given as:\(\mu_kmgs=\dfrac{1}{2}mv^2\\\)
Substituting the values:
\(\mu_k\;\times\;80\;\times\;9.8\;\times\;4=\dfrac{1}{2}\;\times\;80\;\times\;5^2\\\mu_k=\dfrac{5^2}{2\;\times\;9.8\;\times\;4}\\\mu_k=0.32\)
The coefficient of kinetic energy between the wheel and ground is 0.32.
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A resistor has code 104 printed on it .What is the resistive value of this resistor
Answers
Answer:
X = 1 (1st digit in the code)
Y = 0 (2nd digit)
Z = 4 (3rd multiplier digit)
104 → 10 × 10^4 Ω
→ 10 × 10000Ω
→ 100 kΩ
resistors are marked 104, 105, 205, 751, and 754. The resistor marked with 104 should be 100kΩ (10x10^4), 105 would be 1MΩ (10x10^5), and 205 is 2MΩ (20x10^5). 751 is 750Ω (75x10^1), and 754 is 750kΩ (75x10^4).
Here we need to understand how a code in a resistor gives us information on the resistor. Here we will see that the code means that the resistance is 100,000 Ω.
When we use numbers, let's assume that we have 3 single-digit numbers abc.
So if the code in our resistor is abc, this will mean that the resistance of the resistor is:
ab×10^c Ω
Using this general rule we can see that if the code is 104, then the resistance will be:
r = 10×10^4 Ω
= 100,000 Ω
Then we can conclude that the resistive value of this resistor is 100,000 Ω
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In building elevations, the surface of the ground is shown by a __________ line.
Answers
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
Given resistance 30ohms Inductance 200mH is connected to a 230v,50hZ supply. Impedance 69.6ohms Calculate current consumed?
Answers
Answer:
the current consumed is 3.3 A
Explanation:
Given;
resistance, R = 30 ohms
inductance, L = 200 mH
Voltage supply, V = 230 V
frequency of the coil, f = 50 Hz
impedance, Z = 69.6 Ohms
The current consumed is calculated as;
\(I = \frac{V}{Z} \\\\I = \frac{230}{69.6} \\\\I = 3.3 \ A\)
Therefore, the current consumed is 3.3 A
Which of the following is an implication of low
variety?
A. low unit cost
B. flexibility needed
C. high complexity
D. matching customers specific needs
PLEASE EXPLAIN WHICH IS CORRECT WITH EXPLANATION
Answers
The correct option for the implication of low variety is B) Flexibility needed. Variety refers to the number of different products, services, or activities that an organization offers. High variety means that a company offers a wide variety of products or services, while low variety means that a company provides a limited range of products or services.
One of the implications of low variety is that customers have limited options. They are restricted to purchasing only those goods and services that the company offers, which may not match their requirements or preferences. This may lead to losing customers to rivals who offer a greater variety of goods and services.
In the case of low variety, it is critical to have the required flexibility. Customers may ask for certain specific goods or services that are not provided by the company. To meet customer requirements, the company should be adaptable and able to rapidly respond to customer requests by expanding its product line. As a result, low variety necessitates the need for flexibility.
The other given options are not valid. Low unit cost is not related to low variety. Unit cost may be affected by economies of scale and other factors, but it is not directly related to variety. High complexity is not related to low variety as well. As the range of goods and services offered by the company increases, the complexity of the company's operations and management also increases. Matching customers' specific needs is partially correct because the company cannot match customer specific needs in low variety. In low variety, the company has a limited range of goods and services, so it is not possible to fulfill all the customers’ specific needs.
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a what type of contact is used with the High pressure switch?
Answers
3Px=y−y2p2
first order higher dgree
Answers
Answer:
the order higher is 3p79g5t88=yv5379
Lifting the four loads in ascending order produces larger EMG signals as the loads get heavier. Discuss how you think the EMG signals for each load might change if the loads were lifted in descending order, or in random order. Explain your answer with reference to the underlying physiological mechanisms associated with muscle strength, motor unit activity, and muscle fatigue
Answers
Electromyography (EMG) is the study of electrical activity generated by muscle fibers. The amplitude of the electrical signal generated by the muscle fibers is the basis for the EMG signal's size.
The motor unit recruitment pattern, the number of motor units recruited, and muscle fiber type are all important determinants of EMG signals, which play a significant role in muscle force production. As the load weight increases, the size of EMG signals increases due to an increase in muscle fiber recruitment, which is one of the main determinants of EMG signal amplitude.
The motor unit recruitment pattern, the number of motor units recruited, and muscle fiber type are all important determinants of EMG signals, which play a significant role in muscle force production. The EMG signal is likely to decline as the load decreases, as fewer muscle fibers will be recruited to lift lighter weights. As a result, the size of the EMG signal is likely to be lower for lighter loads.
Muscle fatigue is likely to influence the size of EMG signals, as well as the motor unit recruitment pattern. As fatigue sets in, fewer motor units will be recruited, and the motor unit recruitment pattern may change. This will result in a reduction in the size of the EMG signal produced by the muscle fibers. Randomly lifting loads of different weights is likely to result in varying EMG signals.
This is due to the fact that the amount of muscle fiber recruitment required to lift a given weight is dependent on the weight's characteristics. As a result, the EMG signals produced when lifting random weights are likely to be inconsistent.
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