Viscous dissipation term Viscous dissipation is a phenomenon where the mechanical energy of a fluid flow is transformed into internal energy due to the viscosity of the fluid.
It is generally represented by a term (μ) in the energy equation. This term is responsible for generating heat in fluids, which contributes to the overall entropy increase in the system. This process is governed by the second law of thermodynamics, which states that the total entropy of an isolated system always increases over time. Couette flow Couette flow is a fluid flow pattern that occurs between two parallel plates.
When one plate moves relative to the other, a fluid layer is created between them. This layer then experiences a velocity gradient, which results in shear stress. The rate at which this shear stress is converted into heat due to viscosity is known as the viscous dissipation rate. The connection between viscous dissipation term and second law of thermodynamics.
In conclusion, the viscous dissipation term is directly connected to the second law of thermodynamics. The presence of shear stress in Couette flow results in viscous dissipation, which can be calculated using the Navier-Stokes equation.
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name as much parts in a car that you know
Answer:
engine suspension brake and more
Explanation:
Water flows through a pipe at an average temperature of T[infinity] = 70°C. The inner and outer radii of the pipe are r1 = 6 cm and r2 = 6.5 cm, respectively. The outer surface of the pipe is wrapped with a thin electric heater that consumes 300 W per m length of the pipe. The exposed surface of the heater is heavily insulated so that all heat generated in the heater is transferred to the pipe. Heat is transferred from the inner surface of the pipe to the water by convection with a heat transfer coefficient of h = 85 W/m2⋅K. Assume that the thermal conductivity is constant and the heat transfer is one-dimensional. Express the mathematical formulation (the differential equation and the boundary conditions) of the heat conduction in the pipe during steady operation.
Answer:
The differential equation and the boundary conditions are;
A) -kdT(r1)/dr = h[T∞ - T(r1)]
B) -kdT(r2)/dr = q'_s = 734.56 W/m²
Explanation:
We are given;
T∞ = 70°C.
Inner radii pipe; r1 = 6cm = 0.06 m
Outer radii of pipe;r2 = 6.5cm=0.065 m
Electrical heat power; Q'_s = 300 W
Since power is 300 W per metre length, then; L = 1 m
Now, to the heat flux at the surface of the wire is given by the formula;
q'_s = Q'_s/A
Where A is area = 2πrL
We'll use r2 = 0.065 m
A = 2π(0.065) × 1 = 0.13π
Thus;
q'_s = 300/0.13π
q'_s = 734.56 W/m²
The differential equation and the boundary conditions are;
A) -kdT(r1)/dr = h[T∞ - T(r1)]
B) -kdT(r2)/dr = q'_s = 734.56 W/m²
In modern imaging systems, the components for rectification are
a. capacitor discharge generators.
b. high frequency transformers.
c. vacuum tubes.
d. solid state semiconductors.
In modern imaging systems, the components for rectification are typically solid state semiconductors. Hence, option (d) is the correct answer choice.
Modern imaging systems refer to advanced technologies and techniques used for capturing, processing, and analyzing images in various fields such as medical imaging, remote sensing, surveillance, and industrial applications. These systems utilize advanced hardware and software components to produce high-quality images with enhanced resolution, accuracy, and detail. Modern imaging systems often involve sophisticated image processing algorithms, machine learning techniques, and data analysis methods to extract meaningful information from captured images. These systems have revolutionized various fields by providing valuable insights, aiding in decision-making, and advancing research and development.
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State Four Reasons for using plant and Equipment Sing
There will be several advantages to equipment standardization. Digital solutions accelerate standardization by giving an overview of the field equipment.
What benefit does using equipment provide?By using the most effective and efficient procedures, they aid in accelerating the rate of output. Reduce construction costs overall, especially for big contracts. A machine or piece of equipment can effortlessly perform tasks that are too difficult or delicate for human muscles to complete.
What purposes do tools and equipment serve?In general, they are used to assemble or disassemble objects (such as hammers and nail guns) (e.g., jackhammers and saws). Hand tools and power tools are two common categories for tools. All non-powered instruments are considered hand tools, such as such as pliers and hammers.
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what is most delicious fod in the philippines?
Answer:
Well there are a lot of delicious food in the philppines but my most favorite is the Lechon, Adobo, Sisig, Chicken Curry, Crispy pata and Sinigang
A steady green traffic light means
Answer:
Its C. you may proceed, but only if the path is clear
Explanation:
I just gave Quiz and its correct
QUESTION 1 (1 mark)
What is the primary condition Information Technology (IT) technicians look for when repairing computers and laptops?
The primary condition that Information Technology (IT) technicians look for when repairing computers and laptops is identifying the underlying cause of the issue.
When troubleshooting and repairing computers and laptops, IT technicians aim to determine the root cause of the problem rather than simply addressing the symptoms. By identifying the specific issue, whether it's hardware-related (such as a faulty component) or software-related (such as a corrupted operating system), technicians can implement the most appropriate solution.
To identify the underlying cause, IT technicians utilize various diagnostic techniques, tools, and their expertise. They may perform hardware tests, check system logs, run diagnostic software, or engage in systematic troubleshooting to pinpoint the source of the problem. Once the root cause is identified, the technician can proceed with the necessary repairs or fixes to restore the functionality of the computer or laptop.
Efficiently identifying the primary condition allows IT technicians to provide targeted solutions, reduce repair time, and minimize downtime for the users. It enables them to address the specific issue at hand, ensuring that the repaired system functions reliably and meets the user's requirements.
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What are 5 different types of Uav’s
UAVs can be categorized like any other form of aircraft based on design features including weight, engine type, maximum flight altitude, operational duty, degree of operational autonomy, etc.
A drone is a type of unmanned aerial vehicle (UAV), which is an aircraft without a human pilot, crew, or passengers. Unmanned aerial vehicles (UAVs) are a part of unmanned aircraft systems (UAS), which also feature the addition of a controller on the ground and a communications network with the UAV. UAVs' flight can be remotely flown by a human operator, or it can have varying degrees of autonomy, such as autopilot help, up to fully autonomous aircraft that don't allow for human involvement. UAVs were initially created in the twentieth century to perform military tasks deemed "dull, unclean, or dangerous" for humans. By the twenty-first century, they had evolved into vital tools for the majority of militaries.
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UAVs can be categorized like any other form of aircraft based on design features including weight, engine type, maximum flight altitude, operational duty, degree of operational autonomy, etc.
A drone is a type of unmanned aerial vehicle (UAV), which is an aircraft without a human pilot, crew, or passengers. Unmanned aerial vehicles (UAVs) are a part of unmanned aircraft systems (UAS), which also feature the addition of a controller on the ground and a communications network with the UAV.
UAVs' flight can be remotely flown by a human operator, or it can have varying degrees of autonomy, such as autopilot help, up to fully autonomous aircraft that don't allow for human involvement. UAVs were initially created in the twentieth century to perform military tasks deemed "dull, unclean, or dangerous" for humans. By the twenty-first century, they had evolved into vital tools for the majority of militaries.
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if a hashtable requires integer keys, what hash algorithm would you choose? write java code for your hash algorithm.
For a hashtable that requires integer keys, I would choose the Jenkins one-at-a-time hash algorithm. It is a simple and efficient hash algorithm that produces a 32-bit hash value for any given key.
Here is an example implementation of the Jenkins one-at-a-time hash algorithm in Java:
public static int hash(int key) {
int hash = 0;
for (int i = 0; i < 4; i++) {
hash += (key >> (i * 8)) & 0xFF;
hash += (hash << 10);
hash ^= (hash >> 6);
}
hash += (hash << 3);
hash ^= (hash >> 11);
hash += (hash << 15);
return hash;
}
This implementation takes an integer key as input and produces a 32-bit hash value as output. It uses a loop to process each byte of the key in turn, adding it to the hash value and performing some bitwise operations to mix the bits together. Finally, it applies some additional mixing operations to produce the final hash value.
The Jenkins one-at-a-time hash algorithm is a good choice for integer keys because it is fast, simple, and produces a good distribution of hash values for most inputs.
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Create a class named Company. The class has the following instance variables, constructors, and methods.
Private instance variables name of type String, address of type String, revenue of type int, and numOfEmployees of type int.
A public empty no-arg constructor
A public constructor that has four parameters and sets the instance variables accordingly. Use the reference this in your implementation.
A public getter and setter method for the instance variable name. Use the reference this in the setter method.
A public static method that takes two parameters of type Company and returns a boolean value. The method returns true if the instance variable revenue and numOfEmployees of the first argument is equal to the instance variable revenue and numOfEmployees of the second argument, respectively. The method's header is as follows.
public static boolean equals(Company c1, Company c2)
The method should also return true if c1 is equal to c2 (reference variable comparison).
A public method named display() that displays the instance variables of the invoking object in a format of your choice.
Here's a class named "Company" with the required instance variables, constructors, and methods:
public class Company {
private String name;
private String address;
private int revenue;
private int numOfEmployees;
public Company() {
// Empty no-arg constructor
}
public Company(String name, String address, int revenue, int numOfEmployees) {
this.name = name;
this.address = address;
this.revenue = revenue;
this.numOfEmployees = numOfEmployees;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public static boolean equals(Company c1, Company c2) {
if (c1 == c2) {
return true; // Reference variable comparison
}
return c1.getRevenue() == c2.getRevenue() && c1.getNumOfEmployees() == c2.getNumOfEmployees();
}
public void display() {
System.out.println("Company Name: " + this.name);
System.out.println("Address: " + this.address);
System.out.println("Revenue: " + this.revenue);
System.out.println("Number of Employees: " + this.numOfEmployees);
}
// Getters and Setters for the remaining instance variables
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public int getRevenue() {
return revenue;
}
public void setRevenue(int revenue) {
this.revenue = revenue;
}
public int getNumOfEmployees() {
return numOfEmployees;
}
public void setNumOfEmployees(int numOfEmployees) {
this.numOfEmployees = numOfEmployees;
}
}
Please note that the class includes the required instance variables, constructors, and methods as specified in the question.
Here's a class named "Company" that meets the specified requirements:
public class Company {
private String name;
private String address;
private int revenue;
private int numOfEmployees;
public Company() {
// Empty no-arg constructor
}
public Company(String name, String address, int revenue, int numOfEmployees) {
this.name = name;
this.address = address;
this.revenue = revenue;
this.numOfEmployees = numOfEmployees;
}
public String getName() {
return this.name;
}
public void setName(String name) {
this.name = name;
}
public static boolean equals(Company c1, Company c2) {
if (c1 == c2) {
return true; // Reference variable comparison
}
return c1.getRevenue() == c2.getRevenue() && c1.getNumOfEmployees() == c2.getNumOfEmployees();
}
public void display() {
System.out.println("Company: " + this.name);
System.out.println("Address: " + this.address);
System.out.println("Revenue: $" + this.revenue);
System.out.println("Number of Employees: " + this.numOfEmployees);
}
// Getters and Setters for the remaining instance variables
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
public int getRevenue() {
return revenue;
}
public void setRevenue(int revenue) {
this.revenue = revenue;
}
public int getNumOfEmployees() {
return numOfEmployees;
}
public void setNumOfEmployees(int numOfEmployees) {
this.numOfEmployees = numOfEmployees;
}
}
The class "Company" has private instance variables for name, address, revenue, and numOfEmployees.
It includes a no-arg constructor and a parameterized constructor.
The getter and setter methods are provided for the name instance variable.
The static method "equals" compares the revenue and numOfEmployees of two Company objects.
The "display" method outputs the instance variables in a formatted manner.
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when a non-motor-operated electrical appliance lacks an overcurrent protective device rating, nec 422.11(e) states that the branch circuit overcurrent protection shall be .
NEC 422.11(E) states that the branch circuit overcurrent protection shall be 20 amperes of the appliance rating if it does not exceed 13.3 amperes and 150 percent of the appliance rating if it draws more than 13.3 amperes when a non-motor-operated electrical appliance lacks an overcurrent protective device rating.
An electrical device that transforms electrical energy into mechanical energy is an electric motor. The majority of electric motors work by creating force in the form of torque applied to the motor shaft through the interaction of the magnetic field of the motor and electric current in a wire winding. Although an electric generator and an electric motor are mechanically identical, an electric generator uses a reversed power flow to transform mechanical energy into electrical energy.
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why you so mean to me? leave my questions please. answer them
Answer: Why is even here then.
Explanation:
A ____ is either in the pressure reducer or in the downstream side of the system to ensure that the control air pressure does not exceed about 30 psig. Group of answer choices
Answer:
A relief valve is either in the pressure reducer or in the downstream side of the system to ensure that the control air pressure does not exceed about 30 psig.
Polarization: Unpolarized light passes through three ideal polarizing filters. The first filter is oriented with a horizontal transmission axis, the second one has its transmission axis at 30° from the horizontal, and the third filter has a vertical transmission axis. What percent of the light gets through this combination?
Answer:
the percentage of light that gets through this combination is 9.38
Explanation:
Given the data in the question;
Let us represent the incident unpolarized light with \(I_0\).
So, the amount of light intensity passing through the first polarizer will be;
\(I_1\) = \(I_0\) / 2 ------ let this be equation 1
An the amount of light intensity passing through the second polarizer will be;
\(I_2\) = \(I_1\)cos²θ
given that; the second one has its transmission axis at 30°
so, we substitute;
\(I_2\) = \(I_1\) × cos²( 30° )
\(I_2\) = \(I_1\) × 0.75
\(I_2\) = 0.75\(I_1\)
from equation; \(I_1\) = \(I_0\) / 2
\(I_2\) = 0.75( \(I_0\) / 2 )
\(I_2\) = 0.375\(I_0\) .
Now, the amount of light intensity passing through the third polarizer will be;
\(I_3\) = \(I_2\)cos² ( 90° - 30° )
\(I_3\) = \(I_2\) × cos²( 60° )
\(I_3\) = \(I_2\) × 0.25
we substitute
\(I_3\) = 0.375\(I_0\) × 0.25
\(I_3\) = 0.09375\(I_0\)
∴ \(I_3\)/\(I_0\) × 100 = 0.09375 × 100
⇒ 9.38%
Therefore, the percentage of light that gets through this combination is 9.38
The bulk density of a compacted soil specimen (Gs = 2.70) and its water content are 2060 kg/m^3 and 15.3%, respectively. If the specimen is soaked in a bucket of water for sev-eral days until it is fully saturated, what should the saturated density be?
Answer:
the saturated density should be
Explanation:
I need help figuring out 50 x 305982 x 57 to cut the wood for school project
For your school project, you will need around 875,951,100 cubic units of wood.
How to determine size of wood?To determine the size of wood, you need to measure its dimensions. The dimensions of wood are typically expressed as thickness (T), width (W), and length (L).
To find the volume of the wood you need, you can multiply the three dimensions together:
50 x 305982 x 57 = 875951100
So the volume of the wood needed for your school project is approximately 875,951,100 cubic units (depending on the units used for the measurements).
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You have just connected four new computer systems to an Ethernet switch using spare patch cablesZ after the installation, only three systems are able to access the network. You verify all client network settings and replace the network cars in the failed system. The client is still unable to access the network.
Which of the following might you suspect is the real cause of the problem.
The most likely cause of the problem after connecting four new computer systems to an Ethernet switch is might be a faulty Ethernet switch port.
Despite verifying the client network settings and replacing the network card in the failed system, the client is still unable to access the network. This suggests that the issue lies with the connection between the client system and the network. One possible cause is a faulty Ethernet switch port.
When connecting the four new computer systems to the Ethernet switch, it is possible that one of the spare patch cables was not properly connected or that the port on the Ethernet switch itself is malfunctioning. This would result in the client system not being able to establish a connection with the network.
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The three main principles in engineering design are:
The three main principles in engineering design are: strategic balance, top management approach and team work.
What does principles in engineering design means?The principles are fundamental concepts that engineers use to develop effective solutions to complex problems. These principles are based on scientific and mathematical principles as well as practical considerations related to the materials, technologies and resources available to the engineer.
The engineering design process involves several stages, including problem identification, research, concept development, prototyping and testing. Throughout each stage, engineers apply various principles to ensure that their designs meet the needs and requirements of the intended users.
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the device is used to measure a change in temperature. bars ab and cd are made of a-36 steel and 2014-t6 aluminum alloy respectively. when the temperature is at 80 ∘f, ace is in the horizontal position.
Based on the given information, we can infer that the device mentioned is a bimetallic strip or a bimetal thermometer. A bimetallic strip consists of two metal strips bonded together, each having a different coefficient of thermal expansion.
As temperature changes, the different rates of expansion of the two metals cause the strip to bend or twist, which can be used to measure temperature changes.
In this case, bars AB and CD are made of different materials: A-36 steel and 2014-T6 aluminum alloy, respectively. Each material has its own specific coefficient of thermal expansion. When the temperature is at 80 °F, it appears that point ACE is in the horizontal position, indicating that the bimetal strip is in equilibrium at this temperature.
The bimetal strip's ability to bend or twist in response to temperature changes makes it a useful device for measuring temperature variations. The specific properties and behavior of the A-36 steel and 2014-T6 aluminum alloy, including their coefficients of thermal expansion, play a role in determining the response of the bimetal strip to temperature fluctuations.
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this is used to keep all cleaning supplies and chemicals safe
Under what conditions would it be possible to have an adiabatic flow process with a real fluid (with friction) and have the stagnation pressures at inlet and outlet to the system be the same? (Hint: Look at the stagnation pressure–energy equation.)
In an adiabatic flow process, there is no heat transfer between the fluid and its surroundings. The stagnation pressure is the pressure that the fluid would have if it is brought to a complete stop and all of its kinetic energy is converted to pressure energy.
What is the adiabatic flow about?The stagnation pressure-energy equation relates the stagnation pressure to the static pressure, density, and velocity of the fluid:
P_0 = P + (1 ÷ 2) * rho x v²,
where P_0 is the stagnation pressure, P is the static pressure, rho is the density, and v is the velocity of the fluid.
If the adiabatic flow process with a real fluid (with friction) is reversible, then the entropy change of the fluid is zero. This means that the isentropic stagnation pressure at the outlet of the system is equal to the isentropic stagnation pressure at the inlet of the system. In this case, the stagnation pressures at the inlet and outlet of the system can be equal, even if there is friction present.
However, if the adiabatic flow process is irreversible, then the entropy change of the fluid is greater than zero, and the isentropic stagnation pressure at the outlet of the system is less than the isentropic stagnation pressure at the inlet of the system.
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in order to prove the correctness of this algorithm, start by showing the following property: any square of size d d in the plane contains at most four points of l. (b) now show that the algorithm is correct. the only case which needs careful consideration is when the closest pair is split between l and r
The two methods below are both intended to calculate the sum of squares from 1 to n, where n is any positive number.
To obtain the inverse of a given function, follow these steps: The square root is 2 added, 3 divided, 2 subtracted. The task is assigned to us; begin with the letter "n" Add 2. Increase the outcome by 3. Deduct 10 from that outcome. Square the resultant figure. A function that reverses the effects of another function is called an inverse function. Thus, the following are the methods to obtain the inverse of the aforementioned function: The square root is 2 added, 3 divided, 2 subtracted. The two methods below are both intended to calculate the sum of squares from 1 to n, where n is any positive number. A set of instructions known as an algorithm is used to solve problems by doing calculations, data processing, and automated reasoning.
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Identify an object in your house that contains a physical system and list three questions you could use to define the system
Answer:
ALL CAREFULLY ANSWERED CORRECTLY
Explanation:
1) A loaf of Bread PHYSICAL SYSTEM
✓ How can the environment affect the edibility of the bread
✓ What are the constituents that makes up the bread
✓ What process is involved in these constituents mixing to form the loaf.
2) The law of thermodynamics makes us to understand that when heat/energy passes through a system, the systems internal energy changes with respect to the conservation of energy law. That is energy lost = energy gained. Typically, ice would melt in a cup of hot tea because of the thermal energy in the molecules of the hot tea. When you heat a material, you are adding thermal kinetic energy to its molecules and usually raising its temperature. The temperature of the ice raises due to the kinetic energy added to it and it melts to water.
3) The theory of systems view the world as a complex system of interconnected parts. If we consider the society; (financial systems, political systems, etc) we will agree that they individually have their own components and it's the summation of this components that makes the system, this implies that system thinking could be applicable in this kinda of systems as long as they are made up of components.
4) Technology has boosted every sector of our lives and it has the capacity to do more. Restricting it's importance to entertainment alone would be an underusing of its potentials. Engineering students infact should not need any drive to be encouraged about maximizing all it can do in shaping our world.
5) ~ Nature shows its splendid soul
~Never ceases to leave us in amazement
~And we are in love
An object that contains a physical system is a T.V. remote control. Three questions that contain physical systems are:
Is air a physical system?What steps are taken to combine these ingredients to create the loaf?How might the environment impact the bread's palatability?What is a physical system?Sensors, motors, and robots are examples of physical systems. The use of the TV remote controls, traffic lights, security systems, air conditioning systems, and automatic doors are just a few examples given. We give explanations for why we employ physical systems.
A physical system is made up of components or elements that when put together display behavior that its component parts alone do not. (Biological systems and living systems are included in this definition.) The two components of physical systems are matter and energy.
Therefore, a TV remote control is an item that houses a physical system. Three questions are:
Is the air a system of matter? How are these ingredients mixed together to make the loaf? How may the flavor of the bread be affected by the surroundings?To learn more about the physical system, refer to the link:
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A/an _______________ is a bootable image of the operating system that will run from bootable media without requiring that the OS be installed on the local computer
A live operating system, also known as a live OS, is a type of operating system that is designed to run directly from a bootable media such as a CD, DVD, USB drive or an external hard drive.
This means that the live OS can be used to test an operating system without altering the contents of the local hard drive, or to provide a temporary operating system environment for troubleshooting or recovery purposes. Live operating systems are often used by system administrators, IT professionals, and computer enthusiasts who need to perform system maintenance or data recovery tasks. They are also useful for individuals who need to use an operating system that is not installed on their computer, or for those who are testing a new operating system before deciding whether to install it on their computer. Live operating systems typically include a graphical user interface, a range of applications, and tools for system administration, data recovery, and troubleshooting. Some examples of popular live operating systems include Ubuntu Live, Fedora Live, Knoppix, and Tails. Overall, live operating systems provide a flexible and convenient way to use an operating system without installing it on a local hard drive.
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2. what is meant by loading error in a signal measurement? also, suppose that a piezoelectric sensor of output impedance zs is connected to a voltage-follower amplifier of input impedance zi, as shown below. the sensor signal is vi volts and the amplifier output is vo volts. the amplifier output is connected to a device with very high input impedance. plot (use any software that you feel comfortable with) the signal ratio vo/vi against the impedance ratio zi/zs for values of the impedance ratio in the range 0.1 to 10. what is your finding?
Loading error can cause the measured value of the signal to be different from the true value of the signal, leading to an error in the measurement.
To plot the signal ratio against the impedance ratio, you could use a software such as M!crosoft Excel or G0ogle Sheets. You would create a column for the impedance ratio and a column for the corresponding signal ratio, and then plot these values using a scatter plot or line graph. You can then observe the trend of the signal ratio as the impedance ratio changes.
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An evacuated tank is filled with gas from a constant pressure line. Develop an expression relating the temperature of the gas in the tank to the temperature of the gas in the line. Assume the gas is ideal with constant heat capacities, and ignore heat transfer between the gas and the tank.
The temperature of the gas in the tank is the ratio of heat capacities times the temperature of gas in the constant pressure line.
What is temperature?It should be noted that temperature simply means the measure of hotness and coldness in a body
From the given information, H is the enthalpy of gas on the constant pressure line, m is the mass flow rate and U is the internal energy of gas.
Here, the temperature of the gas in the tank is the ratio of heat capacities times the temperature of gas in the constant pressure line.
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What time will current of 10A transferred from a charges of 50C
Answer:
8×10^-19 seconds
Explanation:
i=∆q/∆t
=> ∆t=∆q/i=50×1.6×10^-19/10=8×10^-19(s)
IF YOUR VEHICLE BREAKS DOWN, YOU SHOULD?
Answer:
1. TURN ON YOUR HAZARD/EMERGENCY LIGHTS
Turn on your hazard lights to warn other drivers as soon as you sense something's wrong. Keep them on until help arrives, recommends the National Motorists Association (NMA).
2. SLOW DOWN AND PULL OFF THE ROAD
Aim for the right shoulder of the road. Consumer reports recommends that you pull over to a safe, flat location that is as far away from moving traffic as possible.
3. TURN YOUR WHEELS AWAY FROM THE ROAD AND PUT ON THE EMERGENCY BRAKE
The California Department of Motor Vehicles (DMV) recommends pulling your emergency brake, sometimes called the parking brake. If you have to park on a hill or slope, turn the car's wheels away from the road to help prevent the care from rolling into traffic, says the California DMV.
4. STAY IN YOUR VEHICLE
If you're on a highway or crowded road, the Insurance Information Institute (III) recommends that you avoid getting out of your vehicle to look at the damage or fix a mechanical problem. If you need to get out of the car, get your vehicle to a safe place and make sure the road around you is completely clear. If you're stopped on the right-hand side of the road, get out through the passenger-side door.
5. BE VISIBLE
Once you're safely out of the vehicle, prop up your hood to let other drivers know they should proceed with caution. This will alert other drivers that you're broken down, according to the NMA.
6. SET UP FLARES OR TRIANGLES
Place flares or triangles with reflectors behind your car to alert other drivers to the location where you've stopped, says the III.
7. CALL FOR HELP
Call or use an app to get a tow truck, mechanic or roadside assistance to come help. your insurance company or other provider who may be able to help. If you're in an emergency situation or are not sure who to contact, call 911 or the local police for help.
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If the architect insisted on having more glass than the prescriptive percentage guidelines in ASHRAE Std. 90.1, what issues should he explain to the owner? List possible pros and cons
If the architect insists on exceeding the recommended glass percentage in ASHRAE Std. 90.1, the issues to explain to the owner are: Pros - increased daylight, better views, improved aesthetics. Cons - increased energy consumption, reduced privacy, higher cost.
If the architect insisted on having more glass than the prescriptive percentage guidelines in ASHRAE Std. 90.1, the issues that he should explain to the owner are as follows:Pros:1. Increased daylight: The first advantage of using more glass is that it provides more daylighting, which is better for indoor environments.2. Better views: More glass allows for better views of the outdoors. This can be important in commercial settings where people may be looking out of windows to take a break from work.3. Improved aesthetics: The use of glass can make a building look more modern and sleek, which can be a selling point for owners.Cons:1. Increased energy consumption: One of the significant downsides to using more glass is that it can lead to increased energy consumption. Glass is not a good insulator, so more of it can lead to higher heating and cooling costs.2. Reduced privacy: Another issue with using more glass is that it can reduce privacy. This may be a problem in areas where people need to have private conversations or work in an environment where they don't want others to see them.3. More expensive: Finally, using more glass is likely to be more expensive than using other materials. Glass can be fragile, and it requires specialized installation, so it can be costly to use.
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2. A silo (base not included) is to be constructed in the form of a cylinder surmounted by a hemisphere. The cost of construction per square unit
of surface area is twice as great for the for the hemisphere as it is for the cylindrical side wall. Determine the dimensions to be used if the volume is fixed and the cost of construction is to be kept to a minimum. Neglect the thickness of the silo and waste in construction.
An extremum is a point where the function has its highest or lowest value, and at which the slope is zero.
The dimensions to be used if the volume is fixed and the cost of construction is to be kept to a minimum is as follows;
Height of cylinder = 2 × Radius of cylinderReason:
The given parameters are;
Form of silo = Cylinder surmounted by a hemisphere
Cost of construction of hemisphere per square unit = 2 × The cost of of construction of the cylindrical side wall
Required:
The dimensions to be used if the volume is fixed and the cost of construction is to be kept to a minimum
Solution:
The fixed volume of the silo, V, can be expressed as follows;
\(V = \pi \cdot r^2 \cdot h + \dfrac{2}{3} \cdot \pi \cdot r^3\)
\(h = \dfrac{V - \dfrac{2}{3} \cdot \pi \cdot r^3 }{\pi \cdot r^2 }\)Where;
h = The height of the cylinder
r = The radius of the cylinder
The surface area is, Surface Area = 2·π·r·h + 2·π·r²
The cost, C = 2·π·r·h + 2×2·π·r² = 2·π·r·h + 4·π·r²
Therefore;
\(C = 2 \times \pi \times r\times \dfrac{V - \dfrac{2}{3} \cdot \pi \cdot r^3 }{\pi \cdot r^2 } + 4 \cdot \pi \cdot r^2 = \dfrac{8 \cdot r^3 \cdot \pi + 6 \cdot V}{3 \cdot r}\)
\(C = \dfrac{8 \cdot r^3 \cdot \pi + 6 \cdot V}{3 \cdot r}\)At the minimum value, we have;
\(\dfrac{dC}{dr} =0 = \dfrac{d}{dr} \left(\dfrac{8 \cdot r^3 \cdot \pi + 6 \cdot V}{3 \cdot r} \right) = \dfrac{16 \cdot r^3 \cdot \pi - 6 \cdot V}{3 \cdot r^2}\)Which gives;
16·π·r³ = 6·V
\(V = \dfrac{16 \cdot \pi \cdot r^3}{6} = \dfrac{8 \cdot \pi \cdot r^3}{3}\)Which gives;
\(h = \dfrac{\dfrac{8 \cdot \pi \cdot r^3}{3} - \dfrac{2}{3} \cdot \pi \cdot r^3 }{\pi \cdot r^2 } = 2 \cdot r\)
h = 2·r
The height of the silo, h = 2 × The radius, 2
Therefore, the dimensions to be used if the volume is fixed and the cost is to be kept to a minimum is, height, h = 2 times the radius
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