In a feedback mechanism, an initial change in a variable is produced by a component, which is detected by a sensor. The input information is transmitted to a controller, where it is integrated with other relevant information from the body to form a response.
The output information is then sent to an effector, which can respond by either counteracting or reinforcing the initial change. The variable is continually monitored by the sensor, and this information is fed back to the controller, which adjusts the response accordingly.
In a feedback mechanism, the process begins with a component, often referred to as a perturbation, that produces an initial change in a specific variable. This change is then detected by a sensor, which senses and measures the magnitude of the change. The input information, representing the detected change, is transmitted to a controller.
The controller integrates the input information with any other available, relevant information from the body. This integration process allows the controller to form a response that is appropriate for the detected change. The response may involve activating or inhibiting certain processes or adjusting the output of other components in the system.
The output information, which represents the response, is then sent to an effector. The effector is responsible for implementing the response, and it can either counteract or reinforce the initial change in the variable.
Throughout the process, the sensor continues to monitor the variable for any further changes. The information obtained by the sensor is then fed back to the controller. This feedback allows the controller to continuously adjust and modify the response based on the real-time changes in the variable. This feedback loop enables the system to maintain stability and regulate the variable within a desired range.
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The flow between two infinitely flat parallel plates displays a parabolic profile, and is called plane Poiseulle flow.
a. True
b. False
Answer:
a. True
Explanation:
The study of fluids in a state of rest or in motion and the forces involved in it is called fluid mechanics. Fluid mechanics has a wide range of applications in the field of mechanical engineering as well as civil engineering.
When we study the flow of fluid between any two flat plates that is indefinitely flat and is parallel, the flow of the fluid is known as plane Poiseulle flow. The profile of a plane Poiseulle flow is parabolic.
The velocity profile of a plane Poiseulle flow is :
\($\frac{u(y)}{U_{max}}=1-\left(\frac{2y}{h}\right)^2$\)
Thus the answer is TRUE.
what is y=mx+b
explain
Answer:
Explanation:
The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.
How can i learn this faster
Answer:
true what do you want to learn faster
Explanation:
When subject to an unknown torque, the shear stress in a 2 mm thick rectangular tube of dimension 100 mm x 200 mm was found to be 50 MPa. Using the same amount of material, if the dimensions are changed to 50 mm x 250 mm, what will be the shear stress (in MPa)? The breadth and depth of the section are given along the centreline of the wall.
Answer:
The shear stress will be 80 MPa
Explanation:
Here we have;
τ = (T·r)/J
For rectangular tube, we have;
Average shear stress given as follows;
Where;
\(\tau_{ave} = \frac{T}{2tA_{m}}\)
\(A_m\) = 100 mm × 200 mm = 20000 mm² = 0.02 m²
t = Thickness of the shaft in question = 2 mm = 0.002 m
T = Applied torque
Therefore, 50 MPa = T/(2×0.002×0.02)
T = 50 MPa × 0.00008 m³ = 4000 N·m
Where the dimension is 50 mm × 250 mm, which is 0.05 m × 0.25 m
Therefore, \(A_m\) = 0.05 m × 0.25 m = 0.0125 m².
Therefore, from the following average shear stress formula, we have;
\(\tau_{ave} = \frac{T}{2tA_{m}}\)
Plugging in then values, gives;
\(\tau_{ave} = \frac{4000}{2\times 0.002 \times 0.0125} = 80,000,000 Pa\)
The shear stress will be 80,000,000 Pa or 80 MPa.
4. a. A family purchased a 3 acre piece of land in Limuru for Kshs.30,000,000.00 fifteen years ago. They planted trees at a cost of Kshs.250,000.00 per acre. Each year they have been spending on average Kshs.25,000.00 per acre per month to take care of the trees and also to secure the property. They are now considering selling it. What is the minimum amount they should accept so as not to incur a loss bearing in mind that comparable properties have been yielding a rate of 6.5% interest per annum? (8 marks)
b. “Compulsory acquisition is the power of government to acquire private rights in land for public good without the willing consent of the owner but; in exchange for compensation”. Discuss this statement with special reference to the main considerations that ought to be made in conducting a valuation for compulsory acquisition. (12 marks)
The family should accept a minimum of Kshs.42,250,000.00 to avoid incurring a loss.
Why should they accept this amount and why?To obtain the total cost, the expenses for the land, trees and upkeep are summed up and subsequently reduced by 6. 5% using a discount rate.
Hence, it can be seen that a forced acquisition appraisal primarily focuses on three key factors: the land's market value, the expenses involved in replacing the property, and the potential harm caused to the owner's belongings.
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You should always try to put out a fire if you see one, no matter how large it is.
Answer:
That's not true, if your house is burning down, leave. Let the firefighters do their jobs.
Explanation:
C++ Write a recursive function that parses a binary number as a string into a decimal integer.
The function header is:
int binaryToDecimal(const string& binaryString)
Write a test program that prompts the user to enter a binary string and displays its decimal equivalent. C++
Recursive function that parses a binary number as a string into a decimal integer in C++.
Why does recursive function use decimal?Function uses recursion to parse the binary number by breaking it down into its last digit and the rest of the number. The last digit is converted to a decimal value and added to the rest of the number, which is multiplied by 2.
The process is repeated until the entire binary number has been converted to a decimal integer.
#include <iostream>
#include <string>
using namespace std;
int binaryToDecimal(const string& binaryString);
int main()
{
cout << "Enter a binary number: ";
string binaryString;
cin >> binaryString;
int decimal = binaryToDecimal(binaryString);
cout << "The decimal equivalent is: " << decimal << endl;
return 0;
}
When the program is run, it will prompt the user to enter a binary number, and then it will display the decimal equivalent of the number.
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Jay decides to walk home from school today. He lives 3 miles from school and can walk home in 45 minutes. At what rate is Jay traveling?
Answer: jay is traveling at 4 miles per hour :)
Explanation:
Which of the following are the key
aspects a technical engineer will be
asked to do?
A. Build and put together
B. Design and structure
C. Deconstruct and analyze
Answer: A ,build and put together. engineer build things.
15 1 point Which alert utility can identify theft in a smart meter? Servicing Emergency communication Tamper protection Meter readings Previous
The alert utility that can identify theft in a smart meter is Tamper protection.
What are smart utility meters?Smart meters are capable of sensing and sending power quality indications. Smart meters, for example, may monitor voltage levels and deliver a measurement of whether they are high or low. Smart meters enable utilities to assess each customer's use trends.
Smart meters need mobile technology (network coverage) to interact with energy providers, and a poor signal might break this connection. If you reside in a remote region or in an area known for having poor mobile phone connection, a smart meter may fail to function in your home.
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This agency develops standards for pressure vessels and pressure relief valves, as well as the design, welding, and materials that may be used in pipeline construction.
Select one:
a. American Petroleum Institute
b. American Society of Mechanical Engineers
c. American Gas Association
d. National Fire Protection Association
Answer:
b. American Society of Mechanical Engineers
Explanation:
The "American Society of Mechanical Engineers" (ASME) is an organization that ensures the development of engineering fields. It is an accreditation organization that ensures parties will comply to the ASME Boiler and Pressure Vessel Code or BPVC.
The BPVC is a standard being followed by ASME in order to regulate the different pressure vessels and valves. Such standard prevents boiler explosion incidents.
Raven is adding FSMO roles to domain controllers in the domain1.com forest. The forest contains a single domain and three domain controllers, DC1, DC2, and DC3. DC1 contains a copy of the global catalog, and all three domain controllers have the latest version of Windows Server 2019 installed. Which of the following is a best practice that Raven should follow? She should use DC2 or DC3 as the Domain Naming Master. B She should create the Domain Naming Master role on DC1. She should create three Domain Naming Master roles, one for each domain controller. She does not need to create the Domain Master role because DC1 contains a copy of the global catalog.
The best practice that Raven should follow is to use DC2 or DC3 as the Domain Naming Master of the following is a best practice that Raven should follow. The correct option is A.
The management of the addition or deletion of domains from the forest is the responsibility of the Domain Naming Master. For redundancy and fault tolerance, it is advised to split the FSMO roles among several domain controllers.
Since DC1 already has a copy of the global catalog, it is advantageous to choose a different domain controller (DC2 or DC3) as the Domain Naming Master to disperse the workload and guarantee high availability. This ensures that the forest's operations may continue even if one domain controller goes offline and prevents the creation of a single point of failure.
Thus, the ideal selection is option A.
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using data in Appendix A ,calculate the number of atoms in 1 tonne of iron
\(1.0783*10^{28}(atoms).\)
Explanation:Since I don't have access to "Appendix A", I'll solve the problem using data from the periodic table.
1. Determine the molar mass of iron.
According to the periodic table, the molar mass of iron is:
55.845g/mole.
2. Convert 1 tonne to grams.\(1(tonne)*1000=1000kg\\1000kg*1000=1000000g=10^6g\)
3. Apply rule of 3.\(55.845g\) ----------- \(1 mole\)
\(10^6g\) ----------- \(x\)
\(x=\frac{10^6*1}{55.845}=17906.7061(moles)\)
4. Determine the amount of atoms.Considering that there are, approximately, \(6.022*10^{23}\) atoms in a mole of any element, apply another rule of 3.
1 mole --------------------- \(6.022*10^{23}(atoms)\)
\(17906.7061(moles)\) --------------------- x
\(x=\frac{17906.7061*6.022*10^{23}}{1}=1.0783*10^{28}\).
CONSIDENTIAL 1920I/BAA3613 QUESTION 1 (25 MARKS] Show that 234 mg/L of NaCl is equivalent to 200 mg/L of CaCO3. [5 Marks] (6) An ion analysis was run on a sample of water and the results are shown in Table 1. Assuming the ions are balanced, deduce the value for X. Table 1 Ion Concentration Ion (mg/L) 45.2 Concentration (mg/L) 192.8 HCO3 Ca2+ Mg 30.7 SO, 144.9 Na X CI 64.7 K* 42.5 [14 Marks]
PRIVACY 1920I/BAA3613 Issue No. 1 Show that 200 mg/L of CaCO3 and 234 mg/L of NaCl are the same. A sample of water was subjected to an ion analysis, and the outcomes are displayed in Table
What is Concentration ?Concentration in chemistry refers to the quantity of a material in a certain area. The ratio of the solute in a solution to the solvent or whole solution is another way to define concentration. In order to express concentration, mass per unit volume is typically used. The solute concentration can, however, alternatively be stated in moles or volumetric units. Concentration may be expressed as per unit mass rather than volume. Although concentration is typically used to describe chemical solutions, it may be computed for any mixture. The term "concentration" in chemistry refers to the elements that make up a combination or solution. Here's how concentration is defined and how it can be calculated using various techniques.
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What is definition Forensic Science?
the use of scientific or technical methods to identify, gather, analyze, and evaluate evidence for matters of criminal and civil law or regulation
Which two terms best describe forensic science?The application of natural sciences to legal issues is known as forensic science. In actual practice, forensic science makes use of ideas and procedures from physics, chemistry, biology, and other branches of science. The appraisal of physical evidence includes its identification, individualization, and recognition by forensic scientists.
What makes it forensic science?The Roman term forensis, which means public, to the forum or public conversation; argumentative, rhetorical, belonging to dispute or discussion, is where the word "forensic" originates. The phrase "related to, employed in, or fit for a court of law" is a valid definition of forensic in today's society.
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HELP!!!________ are designed to make it easier for employees to get health and safety information about chemicals.
A) Safety Data Sheets (SDS
)B) ANSI standards
C) Globally Harmonized Systems (GHS)
D) Personal Protective Equipment Standards
The Safety Data Sheets are designed to make it easier for employees to get health and safety information about chemicals (Option A). They are fundamental for handling hazardous chemicals.
Safety Data SheetsSafety Data Sheets are pieces of useful information developed by a manufacturer of a hazardous chemical.
These sheets (safety data sheets) include different types of data including, among others, chemical properties; physical hazards, environmental hazards, etc.
Safety data sheets also include different measures for the safety and protection of overall health, which is often related to issues such as, for example, how to store and/or transport the target chemical.
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In a certain voltage-divider biased npn transistor, VB is 2.95 V. The dc emitter voltage is approximately
Answer:
2.25V
Explanation:
In the above question, we are given an npn transistor.
It's VB = Biased voltage = 2.95V
We are asked to calculate the DC emitter voltage.
DC emitter voltage = VB - VBE
Where:
VBE = Voltage between the base and emitter of a bipolar junction transistor
VBE has a set standard voltage of 0.7V
Hence,
DC emitter voltage = 2.95V - 0.7V
= 2.25V
In this exercise we have to use the knowledge of voltage to calculate the difference, like this:
\(2.25V\)
Knowing that the initial voltage is given by 2.95V and we want to find the voltage difference we have:
\(DC = VB - VBE\)
Where, VBE = Voltage between the base and emitter of a bipolar junction transistor is equal to 0.7 V, this way:
\(DC = 2.95V - 0.7V = 2.25V\)
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WHICH TASK BEST FITS THE ROLE OF A DESIGN ENGINEER ?
Answer: drafting blueprints
Explanation:
based on these s-n curves, would you expect ductile cast iron to fail under cyclic loading of 200 mpa for 109 cycles?
Based on these s-n curves, it is difficult to say for certain whether or not ductile cast iron would fail under cyclic loading of 200 MPa for 109 cycles.
The s-n curves provide information on the fatigue strength of a material under different levels of stress and cycles of loading. However, other factors such as the specific composition and microstructure of the ductile cast iron, as well as any potential defects or flaws in the material, can also play a role in determining its fatigue life. Therefore, it would be important to consider additional information and testing data specific to the ductile cast iron in question in order to make a more accurate prediction about its potential failure under cyclic loading of 200 MPa for 109 cycles.
Based on the given S-N curves, ductile cast iron is expected to fail under cyclic loading of 200 MPa for 10^9 cycles. The S-N curves help to predict the fatigue life of a material under cyclic loading, and in this case, it indicates that ductile cast iron would not be able to withstand 200 MPa stress for 10^9 cycles.
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Based on the given S-N curves, the ductile cast iron fail under cyclic loading of 200 MPa for 10^9 cycles if the curve shows that the stress level of 200 MPa exceeds the endurance limit for ductile cast iron at that specific number of cycles.
To determine this, follow these steps:
1. Locate the S-N curve for ductile cast iron.
2. Find the 10^9 cycles point on the horizontal axis (number of cycles).
3. Trace a vertical line upward from the 10^9 cycles point until it intersects the S-N curve.
4. Read the corresponding stress value on the vertical axis (stress amplitude) at the intersection point.
5. Compare the stress value from the S-N curve to the given cyclic loading of 200 MPa.
If the stress value from the S-N curve is lower than 200 MPa at 10^9 cycles, it indicates that ductile cast iron would likely fail under cyclic loading of 200 MPa for 10^9 cycles. If the stress value is higher than 200 MPa, ductile cast iron is expected to withstand the cyclic loading without failure.
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For proper function hydraulics systems need a reservoir of which of the following?
A.) Compressible fluid
B.) Non-compressible fluid C.) Non-compressible air
Consider a router that interconnects three subnets: Subnet 1, Subnet 2, and Subnet 3. Suppose all of the interfaces in each of these three subnets are required to have the prefix 223.1.17/24. Also suppose that Subnet 1 is required to support up to 63 interfaces, Subnet 2 is to support up to 95 interfaces, and Subnet 3 is to support up to 16 interfaces. Provide three network addresses (of the form a.b.c.d/x) that satisfy these constraints.
Three network addresses that would meet the above criteria are:
Subnet 1: 223.1.17.0/25Subnet 2: 223.1.17.128/26Subnet 3: 223.1.17.192/28.What is a network address?A network address is a unique identifier for a node or host on a computer network. Network addresses are intended to be unique identifiers throughout the network, while some networks allow for non-unique local, private, or locally governed addresses.
It is to be noted that the above network addresses are chosen based on the requirements that each subnet must have the prefix 223.1.17/24 and must support a certain number of interfaces.
The number of bits borrowed from the host portion of the address to create the subnet prefix (also known as the "subnet mask") is chosen such that each subnet can support the required number of interfaces.
In the case of Subnet 1, the subnet mask /25 borrows 7 bits from the host portion of the address, leaving the subnet with 2⁷ = 128 possible host addresses. Since only 63 interfaces are required, this is sufficient to meet the requirement.
In the case of Subnet 2, the subnet mask /26 borrows 6 bits from the host portion, leaving the subnet with 2⁶ = 64 possible host addresses.
In the case of Subnet 3, the subnet mask /28 borrows 4 bits from the host portion, leaving the subnet with 2⁴ = 16 possible host addresses. Since only 16 interfaces are required, this is adequate to meet the requirement.
Overall, the network addresses provided above satisfy the constraints described in the question and allow each subnet to support the required number of interfaces.
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a reversed cycle operating as a air conditioner uses r-134a as the working fluid. it is designed to operate within the saturation 2 phase vapor-liquid dome with a minimum pressure of 0.700 mpa and a maximum pressure of 1.60 mpa. what is the maximum possible coefficient of performance of the air conditioner?
The maximum possible coefficient of performance of this air conditioner is 2.5.
How to find maximum possible coefficient?The maximum possible coefficient of performance of an air conditioner is determined by the following equation:
\(COP = (h_e - h_f) / w\)
where:
COP = coefficient of performance
h_e = enthalpy of the refrigerant at the evaporator
h_f = enthalpy of the refrigerant at the condenser
w = work done by the compressor
The enthalpy of the refrigerant at the evaporator and the condenser can be determined from the refrigerant tables. The work done by the compressor can be determined from the compressor efficiency.
The maximum possible coefficient of performance of an air conditioner is therefore determined by the refrigerant properties and the compressor efficiency.
In this case, the refrigerant is R-134a and the compressor efficiency is 80%. The refrigerant tables show that the enthalpy of R-134a at 0.700 MPa and 273 K is 247.1 kJ/kg and the enthalpy of R-134a at 1.60 MPa and 313 K is 415.7 kJ/kg.
Substituting these values into the equation for COP:
COP = (247.1 kJ/kg - 415.7 kJ/kg) / (0.8 × 100 kW) = 2.5
Therefore, the maximum possible coefficient of performance of this air conditioner is 2.5.
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All of these are types of wheel alignments EXCEPT:
A) four-wheel.
B) steering angle.
C) two-wheel.
D) thrust angle.
Answer:
thrust angle
Explanation:
good luck.........
3 To improve the acoustics in auditorium, a sound reflector with mass
of 200 kg is suspended by a chain from the ceiling. What is its
weight? What force (magnitude and direction) does the chain exert
on it? What is the tension in the chain? Assume that the mass of the
chain itself is negligible.
To improve the acoustics in auditorium, a sound reflector with mass of 200 kg is suspended by a chain from the ceiling thus thet force (magnitude and direction) does the chain exert on it =1960 N.
What is Newton's third regulation?
Ths 0.33 regulation states that for each movement (pressure) in nature there's an identical and contrary response. If item A exerts a pressure on item B, item B additionally exerts an identical and contrary pressure on item A. In different words, forces end result from interactions.
Weight of reflector = mg=200^ * 9.8=1960 NForce exerted with the aid of using chain =1960 NDirection = upwardsTension at the chain = weight of reflector=1960 NWeight of reflector =mg =100 * 9.8=980NMagniyof pressure reflector exerts on earth = 980 N(Due to movement response pair of forces, consistent with Newton's 0.33 regulation of motion.Read more about the Newton's law:
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What signal propagation phenomena causes the diffusion, or the reflection in multiple different directions, of a signal?
In the radio communication system, multipath is the propagation phenomenon that causes diffusion or reflection in multiple different directions of a signal.
Multipath is a propagation mechanism that impacts the propagation of signals in radio communication. Multipath results in the transmission of data to the receiving antenna by two or more paths. Diffusion and reflection are the causes that create multiple paths for the signal to be delivered.
Diffraction occurs when a signal bends around sharp corners; while reflection occurs when a signal impinges on a smooth object. When a signal is received through more than one path because of the diffraction or reflection, it creates phase shifting and interference of the signal.
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Tech A says that bearing axial loads are in line with the shaft. Tech B says that bearing radial loads occur because the gears have a tendency to push each other apart as torque is transmitted between them. Who is correct
Tech A is correct. Bearing axial loads are in line with the shaft and occur parallel to the axis of rotation.
Bearing radial loads, on the other hand, occur perpendicular to the axis of rotation and are caused by the weight of the rotating assembly or external forces acting on it. Gear mesh forces may cause additional radial loads on bearings, but they are not the primary cause of radial loads.
Tech A is correct when stating that bearing axial loads are in line with the shaft, and Tech B is correct when saying that bearing radial loads occur because the gears have a tendency to push each other apart as torque is transmitted between them. Therefore, both Tech A and Tech B are correct in their respective statements.
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the following list of common malfunctions are for which sensor related instrument? plugged or partially plugged tubing leakage improperly sized tubing excessive vibration heat tracing too hot or too cold mechanical damage
The list of common malfunctions given in the question belongs to the 'impulse tubing' sensor-related instrument.
Impulse is referred to the sensing process of medium pressure, and tubing that directly connects this sensing process tapping to the transmitters is called impulse tubing. Impulse tubing is used to transmit the pressure signal from a process to a transmitter. Impulse tubing can be affected by several common malfunctions such as leakage, plugged or partially plugged tubing, improperly sized tubing, heat tracing too hot or too cold, excessive vibration, and mechanical damage.
"
Correct question is:
The following list of common malfunctions are for which sensor related instrument?
List of common malfunctions is as follows:
plugged or partially plugged tubingleakage improperly sized tubing excessive vibration heat tracing too hot or too cold mechanical damage"
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Question about transformers and generators
Answer:
woah
Explanation:
A resistor, an inductor, and a capacitor are connected in series to an ac source. What is the phase angle between the voltages of the inductor and capacitor in this rlc circuit?.
The phase angle is 180°.
A resistor, inductor, and capacitor are connected in series to an AC source.
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identifying transistor materials which element can be used as a dopant in a p-type semiconductor? gallium arsenic antimony phosphorus
When it comes to identifying transistor materials, it is important to understand which elements can be used as a dopant in a p-type semiconductor. Of these options, gallium and antimony are typically used as dopants in p-type semiconductors.
In this case, the options are gallium, arsenic, antimony, and phosphorus.This is because these elements have fewer valence electrons than the base semiconductor material, which allows for the creation of electron holes in the p-type material. By adding these dopants, it becomes easier to control the conductivity of the semiconductor, making it possible to create p-type transistors. Overall, understanding the properties of different semiconductor materials and dopants is essential for developing advanced electronic devices.
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