: Kadj. 2. (20p) A 15-hp, 220-V series DC motor has an armature resistance of 0.1202 and a series field resistance of 0.07 2. At full load, the input current is 60 A, and the rated speed is 1100 rpm. The core losses are 430 W, and mechanical losses are 465 W at full load. Suppose the mechanical losses vary as the speed of the motor, by the fractional power of 2.5, i.e., (speed)2.5. What is the efficiency of the motor at full load? 3. (20m) A 139 1-3 50.30
Answers
The efficiency of the given DC motor at full load can be calculated using the given data.
It requires an understanding of power losses in a motor, including armature resistance loss, field resistance loss, core losses, and mechanical losses. Firstly, calculate the total losses in the motor, which include the copper losses (I^2R losses) in the armature and the series field resistance, the core losses, and mechanical losses. Copper losses are computed by squaring the full load current and multiplying it by the respective resistances. Total losses are the sum of all these losses. The input power to the motor is calculated by multiplying the full load current by the motor voltage. The output power is the input power minus the total losses. The efficiency of the motor is then calculated as the ratio of the output power to the input power, expressed as a percentage.
Learn more about resistance here:
https://brainly.com/question/29427458
#SPJ11
Related Questions
e^×-3x^2=0 find the x
Answers
Each component of the equation is graphed. The point of intersection's x-value provides x is 0.45896226,0.91000757,3.73307902
How do you calculate x's value?The algebraic expression should often take one of the following forms: addition, subtraction, multiplication, or division. Bring the variable to the left and the remaining values to the right to determine the value of x. To determine the outcome, simplify the values. In algebra, the letter "x" is frequently used to denote an unknown value. It is known as a "variable," or occasionally a "unknown."Each component of the equation is graphed. The point of intersection's x-value provides the answer. x is 0.45896226,0.91000757,3.73307902
x≈−0.45896226,0.91000757,3.73307902
To learn more about algebraic expression refer to:
https://brainly.com/question/2164351
#SPJ1
Each component of the equation is graphed. The point of intersection's x-value provides x is 0.45896226,0.91000757,3.73307902.
How do you calculate x's value?A common form for an algebraic expression is one of the following: addition, subtraction, multiplication, or division. To find the value of x, move the variable to the left and the other values to the right.Simplify the values to determine the result. The symbol "x" is frequently used in mathematics to represent an unknowable value. It's referred to as a "variable" or, sporadically, an "unknown."Each component of the equation is graphed. The point of intersection's x-value provides x is 0.45896226,0.91000757,3.73307902The algebraic expressions are divided into monomial, binomial, trinomial, quadrinomial, polynomial, etc. categories based on the number of terms they contain. The algebraic expressions are divided into categories based on the amount of variables they contain, such as expressions with one variable, two variables, three variables, etc.Each component of the equation is graphed. The point of intersection's x-value provides the answer. x is 0.45896226,0.91000757,3.73307902
x≈−0.45896226,0.91000757,3.73307902
To learn more about algebraic expression refer to:
brainly.com/question/2164351
#SPJ1
what is time and energy
Answers
Answer:
Explanation:
well time is like 12 : 30 or like 3:00
energy in what you use to power your homes
are there any companies that you can get a job at as an air craft engeer after university
Answers
Explanation:
most big airports. my father has the same degree and works for southwest airlines
Tech A says an atom with more electrons than protons has an overall positive charge.
Tech B says not all atoms can give up or accept electrons easily. Who is correct?
Answers
Tech B is correct because his statement accurately reflects the diverse nature of atoms regarding their electron transfer capabilities.
Can all atoms easily give up or accept electrons?Tech B is correct in stating that not all atoms can easily give up or accept electrons. The ability of an atom to gain or lose electrons depends on its atomic structure and the distribution of its electrons in the outermost energy level, known as the valence shell.
Atoms strive to achieve a stable electron configuration typically by obtaining a full valence shell with eight electrons (the octet rule), which is more stable. The elements with fewer than four or more than four valence electrons are typically more reactive as they either tend to gain or lose electrons to achieve a stable configuration.
Read more about atoms
brainly.com/question/6258301
#SPJ4
an automobile heats up while sitting in a parking lot on a sunny day. the process can be assumed to be.
A. isobaric
B. isothermal
Answers
The automobile heats up while sitting in a parking lot on a sunny day. The process can be assumed to be non-isothermal. The process of automobile heating up while sitting in a parking lot on a sunny day can be assumed to be non-isothermal or (b) Isobaric.
This process is non-isothermal because it is not happening at a constant temperature. Instead, the temperature of the car is increasing, which means that the process is not isothermal. In thermodynamics, the term “isothermal” refers to a thermodynamic process in which the temperature of a system remains constant. In other words, there is no change in temperature during an isothermal process. On the other hand, a non-isothermal process refers to a process that is not happening at a constant temperature. In such a process, the temperature of the system changes.In the case of the automobile heating up while sitting in a parking lot on a sunny day, the process is non-isothermal because the temperature of the car is increasing. This increase in temperature is due to the energy transfer from the sun to the car. The sun’s rays contain a lot of energy, which is absorbed by the car’s surface. This energy causes the car’s temperature to increase.The increase in temperature of the car causes other effects as well. For example, the air inside the car also heats up, which can cause discomfort to the occupants of the car. Additionally, the increase in temperature can cause damage to some parts of the car, such as the battery or the tires, which can lead to problems later on.
Know more about Isobar here:
https://brainly.com/question/17447073
#SPJ11
It is obvious that the total wellbore storage coefficient is the sum of wellbore storage effect caused by fluid expansion and wellbore storage effect due to changing fluid level. The following data is given for an oil well that is scheduled for a drawdown test: volume of oil in the wellbore = 180 STB average oil density in the wellbore = 45 lb/ft3 the cross-sectional area of the wellbore = 0.2995 ft2 Calculate: a) the total wellbore storage coefficient in (STB/psi) the dimensionless wellbore storage coefficient b)
Answers
To calculate the total wellbore storage coefficient and the dimensionless wellbore storage coefficient, it is necessary to obtain more details about the compressibility of the fluid and the fluctuations in fluid level observed during the drawdown experiment.
What is the the total wellbore storage coefficientThe wellbore's storage coefficient reflects the variation in fluid quantity resulting from a unit of pressure change in the same area. The subsequent equation can be utilized to compute it:
Wellbore Storage Coefficient (C) = (Change in Fluid Volume) / (Change in Pressure)
To estimate the wellbore storage coefficient without having the specific values of the oil formation volume factor (Bo) for a particular reservoir, we divide the wellbore storage coefficient by Bo.
Learn more about total wellbore storage coefficient from
https://brainly.com/question/14685207
#SPJ4
ave 6 Exit Sub B. A mass of 0.1 kg of helium fills a 0.2 m3 rigid vessel at 350 kPa. The vessel is heated until the pressure is 650 kPa. Calculate the temperature change of helium (in K) as a result of this heating. The gas constant of helium is R=2.0769 kPa m®/kg.K. Helium 0.113 ook 0.2 m 350 kPa mt ht The temperature change is K. nces < Prev 3 of 9 !!! Next >
Answers
The temperature change of helium as a result of the heating is 288.93 K.
The temperature change of helium can be calculated using the ideal gas law equation: PV = nRT, where P is the pressure, V is the volume, n is the amount of substance, R is the gas constant, and T is the temperature. Rearranging the equation to solve for T, we get T = PV/nR.
Given that the mass of helium is 0.1 kg, the volume of the vessel is 0.2 m^3, the initial pressure is 350 kPa, and the final pressure is 650 kPa, we can calculate the temperature change as follows:
Initial temperature, T1 = (350 kPa)(0.2 m^3)/(0.1 kg)(2.0769 kPa m^3/kg.K) = 336.49 K
Final temperature, T2 = (650 kPa)(0.2 m^3)/(0.1 kg)(2.0769 kPa m^3/kg.K) = 625.42 K
Temperature change = T2 - T1 = 625.42 K - 336.49 K = 288.93 K
Therefore, the temperature change of helium as a result of the heating is 288.93 K.
Learn more about Temperature
brainly.com/question/11464844
#SPJ11
1. What is the main difference between a virus and a Trojan? 2. A virus or malware can impact which of the three tenets of information systems security (confidentiality, integrity, or availability)? In what way? 3. Why is it recommended to do an antivirus signature file update before performing an antivirus scan on your computer? 4. Why might your coworker suggest encrypting an archive file before e-mailing it? 5. What kind of network traffic can you filter with the Windows Firewall with Advanced Security? 6. What are typical indicators that your computer system is compromised? 7. What elements are needed in a workstation domain policy regarding use of antivirus and malicious software prevention tools?
Answers
The main difference between a virus and a Trojan is that a virus is a self-replicating program that spreads by attaching itself to other files or programs, whereas a Trojan appears as a legitimate program but contains malicious code hidden within it.
A virus is designed to replicate and spread, infecting files and systems, while a Trojan disguises itself as legitimate software to deceive users into executing it, allowing unauthorized access or control of the system. Viruses propagate through various means, such as email attachments or shared files, while Trojans rely on user interaction to be installed.
Both can cause damage to information systems, but their methods and objectives differ. Viruses aim to replicate and spread, while Trojans typically focus on unauthorized access, data theft, or system manipulation.
Viruses or malware can impact all three tenets of information systems security—confidentiality, integrity, and availability. They can compromise confidentiality by stealing sensitive information, compromise integrity by modifying or deleting data, and compromise availability by causing system crashes or denial of service.
Viruses and malware pose a significant threat to information systems security. They can compromise the confidentiality of data by infiltrating systems and stealing sensitive information, such as passwords or personal records. They can compromise integrity by modifying or deleting data, leading to data corruption or loss.
Additionally, viruses and malware can impact the availability of systems by causing crashes, disrupting network connections, or launching denial-of-service attacks. These attacks can render systems unavailable to users, leading to business disruptions or financial losses.
To ensure comprehensive information security, organizations must employ a multi-layered approach that includes preventive measures like antivirus software, regular updates, and user awareness training.
For more questions like Viruses click the link below:
https://brainly.com/question/30428438
#SPJ11
Sadie is the props manager for a small community theater. Because she does not have a part onstage, Sadie is not part of the Performing Arts pathway of the Arts, AV Technology and Communication cluster.
True
False
Answers
Answer:
I think it is false!
Explanation:
Answer: I think it's true
Explanation:
Because if you were part of a play, you would have a part but if you work on props, you don't have a part onstage.
what's the best way to plan an organized
Answers
Answer:
Get ready and comfortable.
List all of the tasks you need to accomplish over the next week. .
Next schedule everything.
Get a planner/calender.
Cut those tasks that do not fit into your
Two adjacent bridge piers rest on clay layers of different thickness but with the same properties. Pier #1 imposes a stress increment of 100 kPa to a 3 m thick layer while Pier #2 imposes a stress increment of 150 kPa to a 5 m thick layer. What is the differential settlement between the two piers if mv =3 × 10−4 m2/kN?
Answers
To calculate the differential settlement between the two piers, we can use the theory of one-dimensional consolidation. The differential settlement occurs due to the differential increase in stress imposed by the two piers on the underlying clay layers.
The settlement of a clay layer can be calculated using the following formula:
Δh = (Δσ * H^2) / (mv * (1 + e0) * (1 + e))
Where:
Δh is the settlement of the clay layer
Δσ is the stress increment imposed by the pier
H is the thickness of the clay layer
mv is the coefficient of consolidation
e0 is the initial void ratio of the clay layer
e is the final void ratio of the clay layer
Given:
Pier #1: Δσ = 100 kPa, H = 3 m
Pier #2: Δσ = 150 kPa, H = 5 m
mv = 3 × 10^(-4) m^2/kN
Assuming the initial and final void ratios of the clay layers are the same, we can simplify the calculation and find the differential settlement between the two piers:
For Pier #1:
Δh1 = (Δσ1 * H1^2) / (mv * (1 + e0) * (1 + e))
For Pier #2:
Δh2 = (Δσ2 * H2^2) / (mv * (1 + e0) * (1 + e))
Taking the difference of the two settlements, we get the differential settlement:
Δh_diff = Δh2 - Δh1
Substituting the given values into the equations and calculating the differential settlement, we can obtain the result.Please note that the void ratio (e) and initial void ratio (e0) should be determined based on the specific characteristics of the clay layer, such as its compressibility and consolidation behavior.
learn more about increase here:
https://brainly.com/question/2285058
#SPJ11
6) Demonstrate how the following array is sorted using Insertion Sort. Show the array after each pass of the outer loop. [16, 3, 12, 13, 8, 1, 18, 9]
Answers
To demonstrate how the given array is sorted using Insertion Sort, we first start by assuming that the first element of the array is already sorted. The remaining elements are then compared with the sorted element and inserted at the appropriate position. The sorted array using Insertion Sort is [1, 3, 8, 9, 12, 13, 16, 18].
Here is how the array will look like after each pass of the outer loop:
Pass 1: [3, 16, 12, 13, 8, 1, 18, 9]
In the first pass, the second element (3) is compared with the first element (16) and since 3 is smaller, they are swapped.
Pass 2: [3, 12, 16, 13, 8, 1, 18, 9]
In the second pass, the third element (12) is compared with the second element (16) and since 12 is smaller, they are swapped. Then 12 is compared with the first element (3) and since 12 is greater than 3, it stays in its position.
Pass 3: [3, 12, 13, 16, 8, 1, 18, 9]
In the third pass, the fourth element (13) is compared with the third element (16) and since 13 is smaller, they are swapped. Then 13 is compared with the second element (12) and since 13 is greater than 12, it stays in its position. Finally, 13 is compared with the first element (3) and since 13 is greater than 3, it stays in its position.
Pass 4: [3, 8, 12, 13, 16, 1, 18, 9]
In the fourth pass, the fifth element (8) is compared with the fourth element (16) and since 8 is smaller, they are swapped. Then 8 is compared with the third element (12) and since 8 is smaller, they are swapped. Then 8 is compared with the second element (3) and since 8 is greater than 3, it stays in its position.
Pass 5: [1, 3, 8, 12, 13, 16, 18, 9]
In the fifth pass, the sixth element (1) is compared with the fifth element (16) and since 1 is smaller, they are swapped. Then 1 is compared with the fourth element (13) and since 1 is smaller, they are swapped. Then 1 is compared with the third element (12) and since 1 is smaller, they are swapped. Then 1 is compared with the second element (3) and since 1 is smaller, they are swapped.
Pass 6: [1, 3, 8, 9, 12, 13, 18, 16]
In the sixth and final pass, the seventh element (18) is compared with the sixth element (13) and since 18 is greater, it stays in its position. Then 18 is compared with the fifth element (12) and since 18 is greater, it stays in its position. Then 18 is compared with the fourth element (9) and since 18 is greater, it stays in its position. Finally, 18 is compared with the third element (8) and since 18 is greater, it stays in its position.
Learn more about array here
https://brainly.com/question/28565733
#SPJ11
HURRY I HAVE 30 Minutes left !!!!
Which option supports the following statement?
The orbit and distance of a satellite dictate the kind of data that will be collected.
Lower altitudes provide detailed data for large geographic areas.
Lower altitudes provide detailed data for small geographic areas.
A sun-synchronous orbit can obtain data on the same area at multiple times of day.
A polar orbit can obtain data under constant sunlight.
Answers
The answer is:
Lower altitudes provide detailed data for large geographic areas.ig..
A small county board is composed of three commissioners. Each commissioner votes on measures presented to the board by pressing a button indicating whether the commissioner votes for or against a measure. If two or more commissioners vote for a measure, it passes. Design a logic circuit that takes the three votes as inputs and lights either a green or a red light to indicate whether a measure passed.
Answers
The common sense circuit. noun. a digital circuit utilized in computer systems to carry out a logical operation on its or extra enter signals. There are six simple circuits, the AND, NOT, NAND, OR, NOR, and unique OR circuits, which may be blended into extra complicated circuits.
Read more about the logic circuits:
https://brainly.com/question/24708297
#SPJ1
3 4/5÷2/5 as a fraction
Answers
Answer:
9 1/2
Explanation:
3 4/5 is 3.8
2/5 is 0.4
divide 3.8 by 0.4 you get 9.5 which is 9 1/2 in a fraction
Suppose you borrow Po dollars (called the principal) from a bank at 8 percent monthly interest and repay the amount in equal monthly payments of M dollars. (a) If P) is the money owed at time t, show that P(1 + At) = P(O)(1+8) - M; P() = Po (12) (b) Solve the above equation for P(1) (c) What should your monthly payments be to completely repay the loan in N years? (d) Suppose you owe $50000 in student loans. The interest rate is $4.8% per year. How much should you pay per month so that the loan is fully paid off in 10 years? (to determine monthly interest, simply divide the annual interest by 12)
Answers
a) If P) is the money owed at time t; P(1 + At) = P(O)(1 + 8) - M
b) P(1) = P(O)(1 + 8) - M / (1 + 8At)
c) To completely repay the loan in N years, your monthly payments should be M = P(O)(1 + 8) - P(1)(1 + 8At)
d) To completely repay the loan of $50,000 in 10 years, your monthly payments should be $527.45.
(a)
\(P(t) = P(t-1) + 0.08*P(t-1) - M⇒ P(t) = (1.08)*P(t-1) - M (1)⇒ P(0) = PoFrom (1),P(1) = (1.08)*Po - M⇒ P(1 + At) = Po(1+0.08) - M\)
(b) Calculation of P(1):
P(1) = P(O)(1 + 8) - M / (1 + 8At)
(c) To determine the monthly payments needed to repay the loan in N years, we can rearrange the formula from part a to solve for M, which gives the monthly payment required to repay the loan in the desired time frame.
(d) Calculation of monthly payment:
\(M = P(1 + r) / (1 - (1 + r)^( - n))Given, N = 10 years, i = 4.8% per year∴ r = i / 12 = 0.048 / 12 = 0.004n = 10 * 12 = 120∴ M = P(1 + r) / (1 - (1 + r)^( - n))Given P = 50000∴ M = 50000(1 + 0.004) / (1 - (1 + 0.004)^( - 120)) = 527.45\)
Thus, the monthly payment for the student loan should be $527.45.
Thus, The loan repayment formula and its variants are widely used in financial planning and loan analysis. Understanding these formulas is essential for making informed decisions about borrowing and repaying loans.
To know more about the monthly payment click here:
https://brainly.com/question/30664343
#SPJ11
Suppose that 42\%42%42, percent of students of a high school play video games at least once a month. The computer programming club takes an SRS of 303030 students from the population of 792792792 students at the school and finds that 40\%40%40, percent of students sampled play video games at least once a month. The club plans to take more samples like this. Let \hat p p ^ p, with, hat, on top represent the proportion of a sample of 303030 students who play video games at least once a month. What are the mean and standard deviation of the sampling distribution of \hat p p ^ p, with, hat, on top? Choose 1 answer: Choose 1 answer: (Choice A) A \begin{aligned} \mu_{\hat p}&=0.42 \\\\ \sigma_{\hat p}&=\sqrt{\dfrac{0.42\left(0.58\right)}{30}} \end{aligned} μ p ^ σ p ^ =0.42 = 30 0.42(0.58) (Choice B) B \begin{aligned} \mu_{\hat p}&=(30)(0.42) \\\\ \sigma_{\hat p}&=\sqrt{30(0.42)(0.58)} \end{aligned} μ p ^ σ p ^ =(30)(0.42) = 30(0.42)(0.58) (Choice C) C \begin{aligned} \mu_{\hat p}&=(30)(0.4) \\\\ \sigma_{\hat p}&=\sqrt{30(0.4)(0.6)} \end{aligned} μ p ^ σ p ^ =(30)(0.4) = 30(0.4)(0.6) (Choice D) D \begin{aligned} \mu_{\hat p}&=0.4 \\\\ \sigma_{\hat p}&=\sqrt{\dfrac{0.4\left(0.6\right)}{30}} \end{aligned} μ p ^ σ p ^ =0.4 = 30 0.4(0.6)
Answers
Answer:
its A, first choice on khan
Explanation:
a client is experiencing acute anxiety and the nurse has received an order for diazepam 4 mg po stat. what is the nurse’s best action?
Answers
The nurse has received an order for diazepam, 4 mg per day, from a client who is experiencing acute anxiety. The nurse should administer the medication as directed.
Which medication ought to be used first when administering benzodiazepines?Numerous physicians consider intravenous lorazepam to be the first option for treatment. Diazepam is available as a gel for the rectal for people who don't have access to an IV. When administered orally or intramuscularly, midazolam is frequently chosen.
When administering benzodiazepines, what considerations must a nurse make?Be careful not to breastfeed while taking benzos because they can make the baby too sleepy and make it hard for them to eat. Avoid abruptly stopping. The patient should talk to their doctor about tapering off the benzos if they use them regularly for a long time.
To know more about diazepam visit :-
https://brainly.com/question/29432912
#SPJ4
NEED ASAP WILL GIVE BRAINLIEST IF RIGHT
Read the following claim.
Tiera Fletcher's parents supported their daughter in her endeavors.
How would Tiera Fletcher MOST likely respond to this claim?
(A) She would agree but also point to occasions where they were a little too strict and forced her to take
certain classes.
(B) She would agree and say they supported her interests and did a lot to ensure she got into special
science programs.
(C) She would disagree but also point to some instances where they attempted to show some curiosity
about her career.
(D) She would disagree and say that they were actively trying to get her to choose another field of study
other than engineering.
Answers
Answer:
(C) She would disagree but also point to some instances where they attempted to show some curiosity about her career.
Other Words Synonymous With OLAP (Online Analytical Processing) Are Data Warehouse OLTP Operational Database Business Intelligence
Other words synonymous with OLAP (Online Analytical Processing) are
Data Warehouse
OLTP
Operational database
Business Intelligence
Answers
These terms are closely related to OLAP and are often used in the context of data management, analysis, and decision support within organizations.
Indeed, other words synonymous with OLAP (Online Analytical Processing) include Data Warehouse, OLTP (Online Transaction Processing), Operational Database, and Business Intelligence. These terms are related to different aspects of data management and analysis.
1. Data Warehouse: A data warehouse is a centralized repository that integrates data from various sources and provides a platform for efficient data storage, retrieval, and analysis. OLAP systems often utilize data warehouses to perform complex analytical queries.
2. OLTP (Online Transaction Processing): OLTP refers to the systems and processes that handle transactional operations in real-time, such as recording sales, processing orders, and updating databases. OLTP systems are designed for high-speed data processing and are typically optimized for transactional workloads.
3. Operational Database: An operational database is a database that supports day-to-day transactional operations of an organization. It is used for storing and retrieving current, up-to-date data related to business operations. While OLAP focuses on analytical processing, operational databases focus on transactional processing.
4. Business Intelligence: Business Intelligence (BI) encompasses the technologies, tools, and processes used to collect, analyze, and present business information. It involves transforming raw data into meaningful insights to support decision-making and strategic planning. OLAP is a fundamental component of business intelligence systems, as it enables advanced analytics and multidimensional data analysis.
These terms are closely related to OLAP and are often used in the context of data management, analysis, and decision support within organizations.
Learn more about analysis here
https://brainly.com/question/29663853
#SPJ11
A pool of contaminated water is lined with a 40 cm thick containment barrier. The contaminant in the pit has a concentration of 1.5 mol/L, while the groundwater circulating around the pit flows fast enough that the contaminate concentration remains 0. There is initially no contaminant in the barrier material at the time of installation. The governing second order, partial differential equation for diffusion of the contaminant through the barrier is: dC
Answers
This question is incomplete, the complete question is;
A pool of contaminated water is lined with a 40 cm thick containment barrier. The contaminant in the pit has a concentration of 1.5 mol/L, while the groundwater circulating around the pit flows fast enough that the contaminate concentration remains 0. There is initially no contaminant in the barrier material at the time of installation. The governing second order, partial differential equation for diffusion of the contaminant through the barrier is:
dC/dt = D( d²C / dz²)
where c(z,t) represent the concentration of containment of any depth into the barrier at anytime and D is the diffusion coefficient (a constant) for the containment in the barrier material.
a) write all boundary and initial conditions needed to solve this equation for C(z, t)
b) Find the steady state solution (infinite time) for C(z)
Answer:
a) At t = 0, z= 0, c = 1.5 mol/L
at t =0, z = 0.4m, c = 0 mol/L
b) C(z) = z² - 4.15z + 1.5
Explanation:
a)
The boundary and initial conditions are as follows
At t = 0, z= 0, c = 1.5 mol/L
at t =0, z = 0.4m, c = 0 mol/L
b)
The governing second order, partial differential equation for diffusion of the contaminant through the barrier is :
(dC/dt) = D*(d²C/dz²) ..............equ(1)
For steady state, above equation becomes,
(d²C/dz²) =0
Integrating above equation,
(dC/dz) = Z + C1 { where C1 is integration constant) }
again integrating above equation,
C = z² + C1*z + C2 ...................equ(2)
applying boundary condition : at t =0, z= 0, c = 1.5 mol/L, to above equation
C = z² + C1*z + C2
1.5 = 0 + 0*0 + c2
C2 = 1.5
applying boundary condition : at t =0, z= 0.4m, c = 0 mol/L, to equation (2) ,
0 = 0.4² + C1*0.4 + 1.5
0 = 0.16 + 0.4C1 + 1.5
0.4C1 = - 1.66
C1 = -1.66/0.4
C1 = -4.15
So, the steady state solution for C(z) is:
C(z) = z² - 4.15z + 1.5
To measure an object accurately, what point on the ruler would you align with the object edge
Answers
Answer:
Along the zero to measure an object on a ruler
What is the reading of this Dial Caliper?
Answers
Answer:
45
Explanation:
bdgdsfggsfg
A Contractor Has A Job Which Should Be Completed In 100 Days. At Present, He Has 80 Men On The Job And It Is Estimated That They Will Finish The Work In 130 Days. Of The 80 Men, 50 Are Each Paid ₱120.00 A Day, 25 At ₱180.00 A Day, And 5 At ₱250.00 A Day. For Each Day Beyond The Original 100 Days, A Contractor Has To Pay ₱500.00 Liquidated Damages.A) How Many
A contractor has a job which should be completed in 100 days. At present, he has 80 men on the job and it is estimated that they will finish the work in 130 days. Of the 80 men, 50 are each paid ₱120.00 a day, 25 at ₱180.00 a day, and 5 at ₱250.00 a day. For each day beyond the original 100 days, a contractor has to pay ₱500.00 liquidated damages.
a) How many more men should the contactor add so that he would complete the work on time?
b) If of the additional men, 2 are paid ₱180.00 a day, and the rest at ₱120.00 a day, would the contractor save money by employing more men and not paying the fine?
Answers
A contractor has a job that should be completed in 100 days. At present, he has 80 men on the job and it is estimated that they will finish the work in 130 days. Of the 80 men, 50 are each paid ₱120.00 a day, 25 at ₱180.00 a day, and 5 at ₱250.00 a day. For each day beyond the original 100 days, a contractor has to pay ₱500.00.
liquidated damages.(a) How many more men should the contractor add so that he would complete the work on time?In the first case, we see that the contractor already has 80 men and they are working for 130 days to complete the job. So, we can use the following formula to determine the additional number of workers required to finish the work in 100 days.
b) If of the additional men, 2 are paid ₱180.00 a day, and the rest at ₱120.00 a day, would the contractor save money by employing more men and not paying the fine Let’s assume that the contractor adds 440 workers, of which 2 are paid ₱180.00 a day and the rest are paid ₱120.00 a day.
The total cost of the new workers is, therefore, ₱9600.00 + ₱4500.00 + ₱49800.00 = ₱63,900.00.The cost of liquidated damages would be calculated as follows: $$LD = (130-100) \cdot 500 = ₱15,000.00$$.
Therefore, the contractor would save money if he employs more men and not pays the fine. The contractor’s savings would be:$$Savings = LD - Additional cost$$$$= 15000.00 - 63900.00 $$$$= -48900.00$$
Thus, we can see that the contractor would save ₱48,900.00 by employing more men and not paying the fine.
To know more about contractor visit:
https://brainly.com/question/31457618
#SPJ11
A tensile test is carried out on a bar of mild steel of diameter 3 cm. The bar
yields under a load of 90 KN. It reaches a maximum load of 160 KN and
breaks finally at a load of 80KN.
Compute:
I. the tensile stress at the yield point
II. the ultimate tensile stress
III. the average stress at the breaking point, if the diameter of the fractured
neck is 2 cm.
Answers
The tensile stress at the yield point is 286 MPa, the ultimate tensile stress is 509 MPa and the average stress is 1,018 MPa.
Tensile stressI. Tensile stress at the yield point
Tensile stress=Fy/A1=4×90×10^3÷πd1²
=360×10^3÷(2×10^-2)²π
=286 MPa
II. Ultimate tensile stress
Fmax/A1=4×160×10^3÷πd1²
=640×10^3÷(2×10^-2)²π
=509 MPa
III. Average stress at the breaking point
Fd/A2=4×80×10^3÷πd2²
=320×10^3÷(10^-2)²π
=1,018 MPa
Therefore the tensile stress at the yield point is 286 MPa, the ultimate tensile stress is 509 MPa and the average stress is 1,018 MPa.
Learn more about tensile stress here:https://brainly.com/question/12937199
#SPJ1
what does kichfoff's currebt law
Answers
Answer:
Kirchhoff's current law (1st Law) states that the current flowing into a node (or a junction) must be equal to the current flowing out of it
Explanation:
The vertical force F acts downward at A on the twomembered frame. Determine the magnitudes of the two components of F directed along the axes of AB and AC. Set F = 500 N. Solve problem 4 with F = 350 lb.
Answers
Vector addition parallelogram law :If a force F needs to be broken down into its component parts along the axes b and c, one should start at the head of the force and build lines parallel to the axes until a parallelogram is formed.
Solve the problem ?Vector addition parallelogram law :If a force F needs to be broken down into its component parts along the axes b and c, one should start at the head of the force and build lines parallel to the axes until a parallelogram is formed.
The parallelogram's sides are represented by Fb and Fc.
Finding the force component F AB and F AC applied at diagram point A is our task.
We can employ the law of sines, as shown in the diagram.
The query is unfinished.
The entire question is included as an image in the attachment, and an explanation is given below.
F AB / sin 60 = 500/ sin 75
F AB = 500/0.965*0.866
F AB = 448.7 N
To find F AC
F AC /sin 45 =500 /sin 75
F AC = 500/0.965* 0.7071
F AC = 366.3 N
To learn more about Vector addition parallelogram law refer
https://brainly.com/question/14436845
#SPJ4
Find the value of the angle θ that achieves equilibrium for the chandelier. Then find the mass of the chandelier that achieves this.
Answers
a) The value of the angle (θ) that achieves the equilibrium for the chandelier is θ = ln(gm/10 + √((gm/10)² + 1));
b) Note that to find the mass of the chandelier that achieves equilibrium, we can substitute this value of θ back into the second equation and solve for m:
m = (10sin(θ) - 10cos(θ)*√((e^θ)^2-1)) / g
What is the explanation for the above response?a) To find the angle θ that achieves equilibrium, we need to set the net force acting on the chandelier to zero. Since the chandelier is in equilibrium, the force on the left rope is balanced by the force on the right rope.
Let's denote the angle formed between the right rope and the ceiling as α. Then, we can write the following equations:
Tcos(θ) = Fcos(α)
Tsin(θ) = Fsin(α) + m*g
where m is the mass of the chandelier, g is the acceleration due to gravity, and we have used the fact that the vertical components of the forces must balance for the chandelier to be in equilibrium.
We can substitute F=e^θ into the above equations to get:
10cos(θ) = e^θcos(α)
10sin(θ) = e^θsin(α) + m*g
We can eliminate α by dividing the second equation by the first and solving for tan(α):
tan(α) = (10sin(θ) - mg) / (10*cos(θ))
Substituting this back into the first equation, we get:
10cos(θ) = e^θcos(α)
10cos(θ) = e^θ(10sin(θ) - mg) / (10*cos(θ))
Solving for θ, we get:
θ = ln(gm/10 + √((gm/10)² + 1))
b) To find the mass of the chandelier that achieves equilibrium, we can substitute this value of θ back into the second equation and solve for m:
m = (10sin(θ) - 10cos(θ)*√((e^θ)^2-1)) / g
Note that the value of θ we found is only valid if it satisfies the condition e^θ > 1, which ensures that the force on the right rope is greater than the force on the left rope.
Learn more about mass at:
https://brainly.com/question/19694949
#SPJ1
can someone tell me what is the most happy song and the most sad: alguien me puede decir cual es la cancion mas feliz y la triste.
Answers
It is subjective to determine the "most happy" and "most sad" song as it varies from person to person. Different songs can evoke different emotions in different people.
However, some songs that are commonly considered to be happy include "Happy" by Pharrell Williams, "Don't Stop Believin'" by Journey, and "I Will Always Love You" by Whitney Houston. Some songs that are commonly considered to be sad include "Everybody Hurts" by R.E.M., "Tears in Heaven" by Eric Clapton, and "My Heart Will Go On" by Celine Dion.
What makes a song happy?The emotions that a song evokes in a listener are subjective, meaning that they can vary from person to person. For example, a song that one person finds to be happy and uplifting, another person may find to be sad or melancholy. This is because emotions are personal experiences that are shaped by a person's individual life experiences, beliefs, and attitudes.
Therefore, Regarding the songs mentioned, "Happy" by Pharrell Williams, "Don't Stop Believin'" by Journey, and "I Will Always Love You" by Whitney Houston are considered happy songs because they have upbeat tempos, positive lyrics, and a cheerful sound that can make people feel good.
Learn more about happy song from
https://brainly.com/question/8278749
#SPJ1
2. The function of 3 variables is specified as a sum of minterms: F (A, B, C) = (0, 2, 3, 5, 6). Specify the function as a product of Maxterms. Specify the complement to the function as a sum of minterms. Obtain the schematics for the following implementations of the function:
a) with a 3-to-8 decoder with active-high outputs and a single 3-input logic gate.
b) with a 3-to-8 decoder with active-low outputs and a single 3-input logic gate. The available gates are OR3, NOR3, AND3, and NAND3. Denote the decoder inputs with A2 (for MSB), A1, A0 (for LSB). Assign the variables A, B, C to the decoder inputs. The decoder outputs should be denoted with decimal digits from 0 to 7 which represent minterm or Maxterm numbers in accordance with the decoder output type
Answers
The function F(A, B, C) is specified as a sum of minterms: F(A, B, C) = Σ(0, 2, 3, 5, 6). To specify the function as a product of Maxterms, we need to first find the complement of the function.
the complement of the function, we need to negate each minterm. The complement of a minterm is a Maxterm.
The minterms in the function F(A, B, C) are 0, 2, 3, 5, and 6. To find the complement of these minterms, we use the following formula:Maxterm = (¬A + ¬B + ¬C) For minterm 0: (¬A + ¬B + ¬C) = (1 + 1 + 1) = 1 For minterm 2: (¬A + ¬B + ¬C) = (0 + 1 + 1) = 1 For minterm 3: (¬A + ¬B + ¬C) = (0 + 1 + 0) = 1 For minterm 5: (¬A + ¬B + ¬C) = (0 + 0 + 1) = 1 For minterm 6: (¬A + ¬B + ¬C) = (0 + 0 + 0) = 0
the specific schematics for these implementations would depend on the available gates and the desired circuit design. The decoder inputs A2 (MSB), A1, and A0 (LSB) should be assigned to the variables A, B, and C. The decoder outputs should be denoted with decimal digits from 0 to 7, which represent the minterm or Maxterm numbers in accordance with the decoder output type.
To know more about that complement visit:
https://brainly.com/question/29697356
#SPJ11