A phone charger requires 0.5 A at 5V. It is connected to a transformer with 100 % of efficiency whose primary contains 2200 turns and is connected to 220-V household outlet.
(a) How many turns should there be in the secondary?
(b) What is the current in the primary?
(c) What would be the output current and output voltage values if number of secondary turns (N2) doubled of its initial value?

All of the characteristics or qualities that apply to a touch screen include the following;

A. is a visual display.

B. responds to physical touch.

A computer hardware can be defined as a physical component of an information technology (IT) or computer system that can be seen, touched and replaced.

In Computer technology, there are various examples of a computer hardware and these include the following:

Generally speaking, a monitor (screen) is a computer hardware that can be configured as a touch screen in order to make it serve as a visual display that would respond to physical touch by its end users.

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Answer:

B. evaluation of a particular program

Explanation:

Before students enrol into any given discipline, they should first ensure that their program of choice is well accredited. In a specific program, specialized accreditation has the function of telling would be students if the program meets up with academic standards in the field

Accreditation is a way of assessing faculty and curriculum quality of schools to make sure that they are up to academic standards and are also preparing students to future success in the field.

Answer:

Diameter of pipe is 0.535 ft

Explanation:

see attachment, its works out 1st half

Answer:

Compute the first four central moments for the following data:

i xi

1 45

2 22

3 53

4 84Explanation:

Answer:

drugs

Explanation:

Answer:

A coordinate system is a method for identifying the location of a point on the earth. Most coordinate systems use two numbers, a coordinate, to identify the location of a point. Each of these numbers indicates the distance between the point and some fixed reference point, called the origin

Answer:

The type of ICS/SCADA i choose is the Paint processing plant.

I will consider both the the time and event based as we need to mix various colors at different time interval and different quantities.

The PLC is used to process different tasks based on the commands assigned to it. In a paint processing plant, when a command from a computer is given to PLC for processing that tasks at that time whatever is the quantity is considered to mix it is carried out by PLC.

Explanation:

Solution

From the given question, i will select the Paint processing plant.

Here, the Supervisory Control and Data Acquisition System (SCADA) refers to a  control system which uses computer network to control and manage the various processes from a single computer.

Since we consider the paint processing system for this we make use of both the time and event based as we need to mix various colors at different time interval and different quantities.

The programming Logic Controller (PLC): This is used to process different inputs based on the commands assigned to it.

In paint processing plant, when a command from a computer is assigned to PLC for processing that function at that time whatever is the quantity is required to mix it is carried out by PLC.

So, PLC is very useful device which is also the main processing device which carries out tasks assigned by the SCADA.

Answer:

\(y(z) = x(z) - x(z) {z}^{ - 2} - \frac{1}{4} y(z) {z}^{ - 2} \\ y(z) + \frac{1}{4} y(z) {z}^{ - 2} = x(z) - x(z) {z}^{ - 2} \\ y(z) (1 + \frac{1}{4}{z}^{ - 2}) = x(z)(1 - {z}^{ - 2}) \\ h(z) = \frac{y(z)}{x(z)} = \frac{(1 + \frac{1}{4}{z}^{ - 2})}{(1 - {z}^{ - 2})} \)

The rest is straightforward...

A) Sewage Factor: It represents the proportion of water inflow that is expected to be discharged as sewage. It is used in the design of sewer systems to estimate the quantity of sewage flow that will be generated.

B) Connection Factor: It represents the percentage of buildings or properties that are expected to connect to a sewer system. It is used in the design of sewer systems to estimate the total number of connections that will be made to the system.

C) Infiltration Coefficient: It represents the rate at which water enters a sewer system through cracks, joints, and other defects in pipes. It is used in the design of sewer systems to estimate the volume of infiltration that will occur during wet weather conditions.

D) Design Period: It is the length of time for which a particular engineering project is designed to function effectively. For example, in the case of water supply systems, the design period may be 20-30 years, during which the system is expected to meet the water demand requirements of the users.

E) Drop Manhole: It is a type of manhole that is constructed at a location where the sewer pipe changes direction from a horizontal to a vertical alignment. The purpose of a drop manhole is to reduce the velocity of the sewage flow and prevent damage to the downstream sewer structures.

F) Self Cleansing Velocity: It is the minimum velocity required in a sewer pipe to prevent the deposition of solids and ensure the self-cleansing of the pipe. A value of twice the average velocity is commonly used as the self-cleansing velocity.

The factors that affect water demand include population size, economic activity, climate, lifestyle, and water pricing policies. Changes in any of these factors can influence the level of water demand in a given area. For example, an increase in population size or economic activity can lead to a higher demand for water, while the implementation of water conservation measures can reduce water demand.

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Answer: Increase in minimills

Explanation:

Answer:

glue

Explanation:

An apartment building that utilizes a flat reinforced concrete floor slab supported by steel floor beams has various benefits. The flat reinforced concrete floor slab provides a strong and durable foundation to support the building’s structure. Steel floor beams are ideal for this purpose as they are strong, lightweight, and can span long distances. Moreover, steel floor beams are versatile and can be customized to suit the specific requirements of the building.

The use of shear connectors to attach the floor beams at their ends to steel girders and columns is crucial. Shear connectors are devices that help in transferring the load from the concrete slab to the steel beams. This ensures that the structure is stable and strong. The steel girders and columns provide additional support to the structure, making it more robust and sturdy.

This type of construction has various advantages over other construction methods. It allows for greater design flexibility and can accommodate various floor plans. Additionally, it is a cost-effective way of constructing multi-story buildings as it requires less time and labor. The use of reinforced concrete and steel beams ensures that the building is strong and durable, making it safe for occupants.

In summary, the use of flat reinforced concrete floor slabs supported by steel floor beams attached by shear connectors to steel girders and columns is a practical and effective way of constructing multi-story buildings. It is cost-effective, flexible, and provides a strong and durable foundation.

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The long answer to your question is that the shape of the streamlines over a circular cylinder will indeed change when the free stream velocity (V[infinity]) is doubled from 20 ft/s to 40 ft/s. This is due to the fact that the flow over a circular cylinder is dependent on the ratio of the cylinder diameter to the free stream velocity, known as the Reynolds number (Re).

At lower Reynolds numbers, the flow is typically laminar and the streamlines are smooth and symmetric. As the Reynolds number increases, the flow becomes turbulent and the streamlines become more chaotic and asymmetric. This can lead to changes in the flow patterns, including vortex shedding and wake formation.

In the case of a circular cylinder, the flow is initially laminar at low Reynolds numbers, but transitions to turbulence as the Reynolds number increases. As the free stream velocity is doubled from 20 ft/s to 40 ft/s, the Reynolds number of the flow will increase proportionally, causing the flow to transition to turbulence at a lower cylinder diameter-to-velocity ratio. This means that the shape of the streamlines will change, becoming more chaotic and asymmetric as the flow becomes turbulent at a lower Reynolds number.

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steel material allowed for the construction of huge, glass-fronted skyscrapers.

The compound referred to as "Steel" consists mainly of two elements: iron and carbon, wherein molten iron receives added amounts of the latter component during production. The quantity of said element included influences essential attributes like malleability (low levels) or hardness (high levels).

Its sturdy composition renders this versatile material ideal for constructing buildings that need substantial support; furthermore, its affordability compared to other materials made it an economically sound choice for numerous developers worldwide.

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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.

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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To find the measurements and total price of the least expensive box with a volume of 8 m3, we need to calculate the dimensions of the box and the cost of materials.

First, let's calculate the volume of the box in cm3. Since 1 m = 100 cm,

the volume is 8 m3 * (100 cm/m) ^3 = 8 * 10^6 cm3.

Let's assume the length of the box is L, the width is W, and the height is H. The volume of the box is given by the formula

V = L * W * H. Substituting the values, we get \(8 * 10^6 = L * W * H.\)

To minimize the cost, we need to minimize the surface area of the box. The surface area of the box is given by the formula

SA = 2LW + 2LH + 2WH. We need to minimize the cost, so we'll calculate the surface area and cost for each material.

For the top and bottom, made of 2 cm thick aluminum, the surface area is 2LW, and the cost is \((2LW) * (2 cm) * (2.7 g/cm^3) * (1 kg / 1000 g) * ($1.2 / kg)\). For the front and back walls, made of 1 cm thick stainless steel, the surface area is 2LH, and the cost is \((2LH) * (1 cm) * (7.5 g/cm^3) * (1 kg / 1000 g) * ($1.2 / kg).\)

For the remaining walls, made of 1 cm thick copper, the surface area is 2WH, and the cost is \((2WH) * (1 cm) * (9.0 g/cm^3) * (1 kg / 1000 g) * ($9 / kg).\) We need to minimize the cost, so we'll calculate the values for each material and find the minimum. Using these formulas and the volume equation, we can solve for the dimensions and cost of the least expensive box. To find the measurements and total price of the least expensive box with a volume of 8 m3, we need to calculate the dimensions of the box and the cost of materials.

The volume of the box is given by V = L * W * H, where L, W, and H are the length, width, and height, respectively. We also need to minimize the surface area to minimize the cost. The surface area of the box is given by SA = 2LW + 2LH + 2WH. We'll calculate the surface area and cost for each material and find the minimum. The dimensions and total cost of the least expensive box will depend on the calculations. Let's proceed with the calculations. To find the measurements and total price of the least expensive box with a volume of 8 m3, we need to calculate the dimensions of the box and the cost of materials.

The volume of the box is given by V = L * W * H, where L, W, and H are the length, width, and height, respectively. We also need to minimize the surface area to minimize the cost. The surface area of the box is given by SA = 2LW + 2LH + 2WH.

For the top and bottom, made of 2 cm thick aluminum, the surface area is 2LW, and the cost is

\((2LW) * (2 cm) * (2.7 g/cm^3) * (1 kg / 1000 g) * ($1.2 / kg).\)

For the front and back walls, made of 1 cm thick stainless steel, the surface area is 2LH, and the cost is

\((2LH) * (1 cm) * (7.5 g/cm^3) * (1 kg / 1000 g) * ($1.2 / kg).\)

For the remaining walls, made of 1 cm thick copper, the surface area is 2WH, and the cost is

\((2WH) * (1 cm) * (9.0 g/cm^3) * (1 kg / 1000 g) * ($9 / kg).\) To find the minimum cost, we'll need to solve the equations

V = L * W * H and SA = 2LW + 2LH + 2WH simultaneously.

This will give us the dimensions and cost of the least expensive box. In conclusion, to find the measurements and total price of the least expensive box with a volume of 8 m3, we need to calculate the dimensions and cost of the materials used for each side. By minimizing the surface area, we can minimize the cost. We'll use the formulas

V = L * W * H and

SA = 2LW + 2LH + 2WH to solve for the dimensions and cost of the least expensive box.      

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Answer:

Food and drug admin

Explanation:

When designing a new material for use in an airplane body, the material should have the following properties:

High strength-to-weight ratio: The material should have high strength-to-weight ratio because the weight of the airplane body should be reduced so that it can fly easily. High stiffness: The material should have high stiffness because it should resist the forces acting on it. Low density: The material should have low density because the weight of the airplane body should be reduced so that it can fly easily. Corrosion-resistant: The material should be corrosion-resistant because it should resist corrosion by exposure to the atmosphere. High fatigue strength: The material should have high fatigue strength because it should resist the forces acting on it.

Fatigue strength is the maximum stress that can be applied to a material without causing it to break. The above properties are crucial when designing a new material for use in an airplane body.

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A Use-Case Diagram (UCD)refers to all the possible interactions that a person or one system can possibly have with another system, represented in a graphical format.

There are four main constituents of a use-case diagram. They are:

UCDs are used to

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Explanation:

Technician A says that primary vibration is created by slight differences in the inertia of the pistons between top dead center and bottom dead center. Technician B says that secondary vibration is a strong low-frequency vibration caused by the movement of the piston traveling up and down the cylinder. Who is correct? O A. Neither Technician A nor B OB. Technician B O C. Both Technicians A and B D. Technician A​

Although in practice this is very challenging to achieve, the cold fluid can exit the heat exchanger at a temperature higher than the temperature of the hot fluid outlet.

There are numerous ways to transmit heat, including evaporative cooling, thermal radiation, convection, and conduction.

Heat transfer is any or all of a variety of processes that are thought to function as mechanisms to move energy and entropy from one place to another. Common names for the specific mechanisms include convection, heat radiation, and conduction (see thermal conduction).

Every time there is a temperature difference between states of matter, heat transfer takes place. Heat transfer only happens in the direction of decreasing temperature, or from a hot object to a cold item.

Conduction of heat through solids, convection of liquids and gases, and electromagnetic waves.

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The percentage of surface atoms losing an electron is 8.439 × 10²⁰%

Given values are:

Scotch tape length = 13 ± 0.05 cm

Linear mass density (d) = 1.44 ± 0.01 g/m

We are asked to determine what percentage of surface atoms lose an electron (assuming the TOP tape is positively charged).

The percentage of surface atoms that lose an electron can be calculated as follows;

By using the relation,1 coulomb (C) = 6.25 × 10¹⁸ electrons

Let's find out how many electrons transfer from the surface atoms.

First, we will find out the total charge on the surface of the tape using the following relation,

Q = surface charge density × surface area of tape.

Charge density is the amount of charge per unit area, so the formula for the charge density is given as;ρ=1/2εE²where, ε = permittivity of free space = 8.854 × 10⁻¹² C^2/N·m²E = electric field.

Let's calculate the surface charge density,ρ=1/2×8.854 × 10⁻¹²×2000²ρ = 0.00708284 C/m²

Now, let's calculate the surface area of the tape;

Surface area of tape = length of tape × width of tape.

Surface area of tape = 13 × 0.0254 (1 inch = 0.0254 m)

Surface area of tape = 0.3302 m²

Let's find the total charge,

Q = surface charge density × surface area of tape

Q = 0.00708284 × 0.3302Q = 0.00234003 C

Let's calculate the number of electrons transferred from the surface atoms,

n=Q/e

Where, e is the charge of an electron = 1.6 × 10¹⁹ Cn = 0.00234003/1.6 × 10⁻¹⁹n = 1.46252 × 10¹⁶

Let's find the number of surface atoms.

Number of surface atoms = surface area × surface density

Where, surface density = linear mass density/molar mass of Scotch tape

Surface density = 1.44/ (27.4 × 10³) = 5.24272 × 10⁻⁵ atoms/m²

Number of surface atoms = 5.24272 × 10⁻⁵ × 0.3302

Number of surface atoms = 1.73230944 × 10⁻⁵

Let's find the percentage of surface atoms that lose an electron,

Percentage of surface atoms = (n/total surface atoms) × 100%

Percentage of surface atoms = (1.46252 × 10¹⁶/1.73230944 × 10⁻⁵) × 100%

Percentage of surface atoms = 8.43931102538 × 10²⁰%

Hence, the percentage of surface atoms that lose an electron is 8.439 × 10²⁰%.

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Tech a says that a battery load test must be performed with the battery removed from the vehicle. Tech b says that a battery load test should be performed when the battery is heavily discharged. The correct technician is Technician A.

Load testing your car battery may tell you if it is sufficiently charged, and it is simple to do using a voltmeter. Set your voltmeter to 20 volts or the highest number over 15.

Load testing a battery with an adjustable graphite pile battery tester is one approach for checking the status of its plates. A load tester applies a calibrated load to the battery and measures its response. The load is set to half the present battery's cold cranking amp (CCA) rating for 15 seconds.

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If both the ram air input and drain hole of the pitot system become blocked, the indicated airspeed will: a) increase during a climb.

A ram air input can be defined as an air intake system which is designed and developed to use the dynamic air pressure that is created due to vehicular motion, or ram pressure, in order to increase the static air pressure within the intake manifold of an internal combustion engine of an automobile.

This ultimately implies that, a ram air input allows a greater mass-flow of air through the engine of an automobile, thereby, increasing the engine's power.

In conclusion, indicated airspeed will increase during a climb when both the ram air input and drain hole of the pitot system become blocked.

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Complete Question:

If both the ram air input and drain hole of the pitot system become blocked, the indicated airspeed will

a) increase during a climb

b) decrease during a climb

c) remain constant regardless of altitude change

Answer:

ABCDEFGHIJKLMNOPQRSTUVWXYZ

Answer:

Email etiquette is important

Explanation:

It is important to understand how to use correct email etiquette because it helps you communicate more clearly. It also makes you seem a bit more professional too. For example depending in who you're emailing like say you're emailing your teacher for help then here's how it'd go:

Dear(teacher name, capitalize, never use first name unless they allow it)

Hello (teacher name), my name is (first and last name) from your (number class) and I was wondering if you could please help me out with (situation, be clear on what you need help with otherwise it won't get through to them)? If you could that would be greatly appreciated!

Sincerely,

(your name first and last)

Answer:

\(Hr=4.2*10^7\ btu/hr\)

Explanation:

From the question we are told that:

Water flow Rate \(R=4.5slug/s=144.78ib/sec\)

Initial Temperature \(T_1=60 \textdegree F\)

Final Temperature  \(T_2=140 \textdegree F\)

Let

Specific heat of water \(\gamma= 1\)

And

 \(\triangle T= 140-60\)

 \(\triangle T= 80\ Deg.F\)

Generally the equation for Heat transfer rate of water  \(H_r\) is mathematically given by

Heat transfer rate to water= mass flow rate* specific heat* change in temperature

 \(H_r=R* \gamma*\triangle T\)

 \(H_r=144.78*80*1\)

 \(H_r=11582.4\ btu/sec\)

Therefore

 \(H_r=11582.4\ btu/sec*3600\)

 \(Hr=4.2*10^7\ btu/hr\)

Given the following data:

Mass of astronaut = 150-lbm.

Acceleration due to gravity on Moon = 5.48 ft/s².

Weight can be defined as the force acting on an object or a physical body due to the effect of gravity. Also, the weight of a physical object (body) is typically measured in Newton or ounces.

Mathematically, the weight force on a physical body can be calculated by using this formula:

W = mg

Where:

Substituting the given parameters into the formula, we have;

Weight = 150 × 1/32.2 × 5.48

Weight = 25.5 lbf.

A beam scale is a measuring instrument that is designed and developed to compare the masses of a physical body and as such, it's not affected by the variations in acceleration due to gravity. Therefore, the beam scale would read 150-lbf as it read on earth.

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The electrical panel schedules are located on EWR Plan number 8.

Hence, answer is A.

An electrical panel schedule refers to the listing of all circuits on a panelboard or switchboard. It should include information such as circuit breakers, panelboards, and what each breaker controls.

Electrical panel schedules assist with ensuring that there is no overloading of the circuits, which can result in serious problems such as electrical fires.

Thus, panel schedules are a significant aspect of any electrical installation, and they should be kept up to date and organized.

So, the correct answer is A.

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