observation that r2 and /?3 in effect are in parallel (because the ideal op amp forces a virtual ground at the inverting input terminal). use this observation to derive an expression for the gain (v()/vt) by first finding (vx/vz) and (v0/vx). for the latter use the voltage-divider rule applied to /?4 and (/?21| /?3)

Answers

Answer 1

Rx is the individual resistor across which the output voltage drop is being measured, and VRx is the voltage divider formula for a circuit with many resistors.

The distribution of the input voltage among the divider's parts produces voltage division. Two resistors linked in series with the input voltage applied across them and the output voltage emerging from the connection between them serve as a straightforward example of a voltage divider. The currents flowing through the resistors R1 and R2 are I1 and I2, respectively, while the voltage across each element is VS. At node P, the KCL equation will be. IS=I1+I2. Replace I1=VSR1 and I2=VSR2 in the equation above.

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Related Questions

what single addition to the automobile gave the internal combustion engine the edge and resulted in most automobiles being produced with these engines?

Answers

The gas vacuum engine, the first internal combustion engine used industrially, was patented by Samuel Brown in 1823. In a vehicle and a boat, the invention was shown. It was then utilized commercially to pump water to the Croydon Canal's upper level in 1830.

What three kinds of internal combustion engines are there?

Internal combustion engines come in three main categories and are widely used today:

1. the spark ignition engine, which is generally used in automobiles;

2. the diesel engine, which is utilized in big vehicles and industrial systems and

3. is preferable to the more compact and lighter due to gains in cycle efficiency.

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benefits of cellular technology based system to society

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Network home security systems, especially ones with cellular back-up, are more reliable than their old landline counterparts. While phone lines can be cut by a resourceful burglar or damaged during a natural disaster, network and cellular systems are less prone to these types of disruptions.

A distance AB is observed repeatedly using the same equipment and procedures, and the results, in meters, are listed in Problems 3.7 through 3.10. Calculate (a) the line's most probable length, (b) the standard deviation, and (c) the standard deviation of the mean for each set of results.

Answers

The most probable length is 65.4012

The standard deviation is 0.003359

The standard deviation of mean is  1.0626 x 10⁻³

How to solve for the most probable length

The most probable length for the group of data would be the mean of the data set. In order to solve for this, you have to add up all of the values that are in the data set and divide by the total number in the data set

65.400 + 65.402 + 65.396+ 65.406 + 65.401 + 65.396 + 65.401 + 65.405 + 65.404 / 10

= 65.4012

The most probable length is 65.401

How to solve for the standard deviation.

To solve for the standard deviation, we would have to make use of a standard deviation calculator

= (65.400 - 65.4012)² + ... + (65.404 - 65.4012)² / 9

= 0.00010155555555557 / 9

= 1.1283950617286E-5

σ = √1.1283950617286E-5

= 0.0033591592128516

= 0.003359

The standard deviation of the mean

σm = σ / √N

= 0.0036 / √10

= 0.00336 / 3.162

= 1.0626 x 10⁻³

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Complete question

distance AB is observed repeatedly using the same equipment and procedures, and the results, in meters, are listed below. Calculate 65.401, 65.400, 65.402, 65.396, 65.406, 65.401, 65.396, 65.401, 65.405, and 65.404.

Calculate:

(a) the line's most probable length,

(b) the standard deviation, and

(c) the standard deviation of the mean.

The solid cylindrical rod of diameter and with shear modulus is attached to the rigid lever , and to the fixed support at (Figure 2). The vertical force P applied at causes a small displacement Δ at point . Show that the corresponding maximum shearing stress in the rod is = 2 Δ

Answers

Answer:

let me know if this helped

stranded wire use is being discussed. technician a says there is less exposed surface area for electron flow in stranded wire. technician b says there is more resistance in the stranded wire than in the same gauge solid wire. who is correct?

Answers

The answer is neither A nor B. The strands cannot be twisted without forming a helix. Or, to put it another way, the helix is an inevitable result of the twisting movement.

A solid wire with the same cross-sectional area and conventional length as the wire in the illustration will have a little less resistance. This is due to the fact that the wire in the illustration will have a Path Length that is somewhat more than the length of the solid wire, and Path Length is what counts in terms of resistance. Now, you probably won't notice the helix when holding a real stranded and twisted wire. The helix in the aforementioned image is exaggerated, and the helix in a real wire is typically so "slight" that it's difficult to see.

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3) which is not a way to minimize your exposure to radiation? * 1 point a) wearing a lead apron b) keeping a good distance c) standing behind a thick concrete wall d) wearing lead-lined gloves e) staying a longer time

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Cloth is able to block the comparatively sluggish alpha radiation particles. Synthetic fabric (ideally, specialist clothes, such as HAZMAT suits), which covers the entire body, can block beta radiation particles, which are smaller and move faster.

Alpha and beta radiation particles can, of course, harm the body if they are inhaled, thus it is important to protect the airways (nose and mouth), even with a dust mask and more efficiently with a regular respirator. Hands and eyes should both be covered (goggles, gloves). The devastation of stem cells, which is what caused the first responders at Chernobyl to perish, is the primary cause of acute radiation sickness. StemRad efficiently shields tissue that contains these cells, preventing radiation sickness while preserving mobility.

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In a dictionary to print the average value

Answers

Answer:

Use a dictionary?

Explanation:

Bad wording of the question...

Who is responsible for checking the items list (lot numbers) on DA Form 3151-R against ammunition suspensions and restrictions?

Answers

The customer service clerk is the one who is responsible for checking the items list (lot numbers) on DA Form 3151-R against ammunition suspensions and restrictions.

What is a DA Form 3151-R?

It is to be noted that when weaponry is issued, shipped, received, turned in, or moved, DA Form 3151-R (Ammunition Stores Slip) is utilized.

The surveillance employee examines the ammo and completes DA Form 3151-R.

Also note that before ammunition may be provided, an original, current DA Form 1687, Signature Card, specifying that personnel authorized to request and/or receive weaponry must be on file at the ASP.

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a 400 l tank initially contains water at 200 kpa and a quality of 1%. heat is transferred to the tank by a burner, thereby raising the temperature and pressure of the water. at a pressure of 3 mpa, a valve opens and saturated vapor at 2 mpa flows out. the burner remains on, maintaining a pressure of 3 mpa inside the tank, until the quality of the tank is 90%, after which it shuts off

Answers

To prevent a waterlogged tank or surging at the faucets, you must keep air in the bladder of bladder-type pressure tanks. First, look at the pressure gauge to determine the pressure at which your well pump activates and deactivates.

The difference in pressure between turning on and turning off is typically 20 psi. our pipes, fittings, and switches may become damaged by pressures more than 60 psi. Plumbing failure and expensive leaks could result from this damage. It's probable that the pump won't be able to achieve the cut-off pressure if the pressure is set at 80 psi. The bladder could be torn or holed if tank pressure lowers. If a tank is totally filled with water or has too much water for it to function properly, it is said to be waterlogged.

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If | A + B|2 = A2 + B2, then

Answers

If |a|b then 2−2=(−)(+)|0⟺+|0

a c-section specimen is designed to tolerate a stress-concentration factor for 1.75. calculate the allowable normal strength in the c-section if the material used to make the section has a yield strength of 84 kpsi.

Answers

The allowable normal strength in the c-section is 48000 pounds per square inch.

The allowable stress depends on both the factor of safety imposed on the object and the yield strength or stress at which an object will be permanently damaged. To calculate the allowable normal strength we can divide the yield strength by the factor of safety.

To determine the allowable normal strength output we can use this equation below:

The allowable normal strength = The number yield strength : A stress-concentration factor

The number yield strength is 84 kpsi.

Then convert kpsi to psi : 84 kpsi = 84000 psi

A stress-concentration factor is 1.75

The formula to find allowable normal strength output is:

84000 psi : 1.75 = 48000

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Explain why you think a designer would choose to use an isometric sketch rather than a perspective sketch to share their idea with a design team member?

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It is because an isometric sketch is more useful for functional drawings that are used to explain how something works, while one-point perspective drawings are typically used to give a more sensory idea of an object or space.

Isometric Sketch or isometric drawing can be described as a pictorial representation of an object in which all three dimensions are drawn at full scale. It looks like an isometric projection. Isometric sketch is kind of 3D drawing, which is set out using 30-degree angles. It is kind of axonometric drawing so the same scale is used for every axis, resulting in a non-distorted image.

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if the oil leaves the exchanger at 100 what is its flow rate? what is the length of the exchanger shell required to accomplish the desired heating?

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         A heat exchanger is a device that transfers heat from one working fluid to another. Both cooling and heating operations employ heat exchangers. The liquids may be in direct contact or separated from one another by a solid wall to prevent mixing.

How is heat transfer calculated in a heat exchanger?

CALCULATIONS FOR HEAT EXCHANGERS:

The fundamental equation for a heat exchanger is: Q is equal to the log mean temperature difference (U x A x Tm). ΔTm is: Tm is equal to (T1 - t2) - (T2 - t1) °F.

T1 is the fluid temperature on the inlet tube side; t2 is the fluid temperature on the outlet shell; and ln (T1 - t2) (T2 – t1)

       How are shell and tube heat exchangers designed? Steps for the design of a heat exchanger:

Define the fundamental conditions for the process.Choose an appropriate type of heat exchanger.To develop a heat exchanger model, adjust a few design parameters.The heat exchanger's design is rated.Make a specification sheet that includes the heat exchanger's finished design.

    The Second rule of thermodynamics states that 100% thermal efficiency is an impossibility for heat engines (). This is not conceivable since a heat engine will always produce some waste heat,.

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If the Poisson’s ratio of a 5 mm X 5 mm titanium alloy pin is 0.31 and it is elastically loaded

in tension from 100 mm to 105 mm. With the aid of a sketch, calculate the new side dimension.

Answers

The new dimensions of the titanium alloy pin will be that the width is 0.0775 mm and the length is 4.9225m.

What is Poisson's ratio?

The Poisson's ratio is the proportion of a material's change in width per unit width to its change in length per unit length due to strain. In order for a stable, isotropic, linear elastic material to have a positive Young's modulus, shear modulus, and bulk modulus, the Poisson's ratio must be between 1.0 and +0.5. Poisson's ratio values for the majority of materials fall between 0.0 and 0.5.

The formula for the longitudinal strain is:

= Change in length / Initial length

Based on the information, the longitudinal strain will be:

= 105 - 100 / 100

= 0.05

Poisson ratio will be illustrated as the change in the width divided by the longitudinal strain. :

0.31 = ∆w/5 / 0.05

∆w = 0.0775 mm

New side length will be the difference in the changes in the dimensions:

= w - ∆w

= 5 - 0.0775

= 4.9225m

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The supply chain is ...

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Answer:

A supply chain is the network of all the individuals, organizations, resources, activities, and technology involved in the creation and sale of a product. A supply chain encompasses everything from the delivery of source materials from the supplier to the manufacturer through to its eventual delivery to the end user.

for a given amount of power (s) to be transmitted, an increase in the transmission line voltage would result in:

Answers

Efficiency improvement is the main driver behind high voltage power transmission. There are inherent energy losses when electricity is transferred across vast distances.

Electricity is transferred from one site to another with the least amount of power loss possible thanks to high voltage transmission. Transformers, which raise voltage levels to enable long-distance transmission, are a crucial component of this process. The electrical grid is made up of power plants, distribution networks, and sub-stations as well as the electrical transmission system. The power loss will decrease as the current decreases. Therefore, to lower current during electricity transmission, the voltage is increased. When sending the same amount of power over a longer distance at a lower voltage, there will be a greater power loss.

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technician a says that variable valve timing improves performance. technician b says that cylinder deactivation helps improve performance. which technician is correct?

Answers

      In essence, it alters the valve timing by changing the camshafts' phase angle. For instance, to permit early intake at high speed, the inlet camshaft will be cranked 30° in advance. According to requirement, the engine management system regulates this movement, which is triggered by hydraulic valve gears.

Who introduced variable valve timing?

Aston Martin

    Variable valve timing (VVT), a technology used in conventional vehicle internal combustion engines, was first developed by Fiat in the late 1960s. The 1980 Spider 2000 from Alfa Romeo was the first manufacturer to use VVT in a production vehicle.

Unclean Oil Can Be Very Dangerous

      These oil-fed solenoids and actuators, which are also incompatible with turbocharged engines, are among the variable timing components. Internal coking, clogging, and sludge difficulties in those components can be brought on by dirty oil.

VVT regulates airflow and exhaust

      Engine valves regulate the ingestion of fuel and fresh air as well as the outflow of combustion gases. In order to match the engine's operating circumstances, VVT and lift systems modify the timing of the valves. As a result, efficiency is increased across a broad range of engine running speeds.

      Where can I find variable valve timing soldenoids? At the front of the engine, often close to the front of the valve cover, is where you'll find the variable valve timing solenoid.

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what is the formula for reynolds number? a. b. c. d. 5 points save answer question 3 of 7 moving to the next question prevents changes to this answer.

Answers

Reynolds Number = Inertial Force / Viscous Force​​ L = length or diameter of the fluid

The ratio of viscous forces to inertial forces is known as the Reynolds number. A dimensionless number called the Reynolds number is used to group fluid systems where the influence of viscosity plays a significant role in regulating the velocities or the flow pattern of a fluid.

What is implied by the Reynolds number?

The fluid flow is classified as turbulent or laminar using the Reynolds number, abbreviated as Re. When a numerical model is chosen based on pre-calculated Reynolds numbers, it is one of the key regulating parameters in all viscous flows.

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Re = VD/ or Re = VD/v is the formula for the Reynolds Number, where "V" stands for fluid velocity, "D" for characteristic distance, "" for fluid density, "v" for kinematic viscosity, and "" for dynamic viscosity, all of which can be found in data tables.

What are Reynolds number?When a fluid experiences relative internal movement as a result of various fluid velocities, the ratio of inertial forces to viscous forces is known as the Reynolds number. A boundary layer, such as the bounding surface inside a pipe, is an area where these forces affect how they behave. The ratio of inertial and viscous forces is measured by the Reynolds number, which aids in the prediction of flow patterns in various fluid flow scenarios. Laminar flow typically predominates in flows with low Reynolds numbers, while turbulent flow typically predominates in flows with high Reynolds numbers.Re = VD/ or Re = VD/v is the formula for the Reynolds Number, where "V" stands for fluid velocity, "D" for characteristic distance, "" for fluid density, "v" for kinematic viscosity, and "" for dynamic viscosity, all of which can be found in data tables.

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When the soluble BOD in the influent to the treatment plant rises from 129 mg/L to 201 mg/L, the operator called to ask your advice on a new MLVSS for the plant. It has been operating with an F/M of 0.45 mg/mg-d and the operator would like to continue using the same F/F. The plant data are as follows: flow rate = 7,673 m^3/d; aeration tank volume = 1,157 m^3; mixed liquor volatile suspended solids = 2,601 mg/L

Answers

The new mixed liquor volatile suspended solids from the given plant data is; 4052.72 mg/L

What is the discharge flow rate?

MLVSS is expressed as mixed liquor volatile suspended solids and it is the total amount (mg/L) of organic or volatile suspended solids in the mixed liquor residing in an aeration tank. This volatile portion in the aeration tank serves the purpose of measurement or indication of the microorganisms that are present.

We are given;

Initial BOD; y = 129 mg/L

New BOD; y' = 201 mg/L

F/M = 0.45 mg/mg-day

Volume of tank; V = 1157 m³ = 1157 × 10³ Liters

MLVSS = 2601 mg/L

1) The discharge from the initial BOD is gotten from the formula;

Q = ((F/M) * V * MLVSS)/y

Plugging in the relevant values gives;

Q = (0.45 * 1157 × 10³ × 2601)/129

Q = 10497756.98 Liters/day

2) Now, let us find the new MLVSS which would be gotten from the formula;

MLVSS' = (Q * y')/((F/M) * V)

MLVSS' = (10497756.98 * 201)/(0.45 * 1157 × 10³)

MLVSS' = 4052.72 mg/L

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is used to indicate the centers of objects such as columns and fixtures.

Answers

Answer: Centerline

Explanation: The centerline can tell you where the center of a circle or an object is.

What state of liquid does point a represent in the Rankine cycle?
Saturated liquid, subcooled liquid, superheated liquid, or Sat. liquid vapor mix?

Answers

The state of liquid that point 2a" represents in the Rankine cycle is "Subcooled Liquid" (Option B).

What is the Rankine cycle?

The Rankine cycle, also known as the Rankine Vapor Cycle, is a process that is frequently utilized in power facilities such as coal-fired power plants and nuclear reactors. Fuel is utilized in this mechanism to generate heat within a boiler, transforming water into steam, which then expands via a turbine, providing useful work.

The Rankine cycle (RC) is a thermodynamic cycle used in thermal power plants to transform thermal energy into mechanical labor. Many researchers have recently focused on exploiting the Rankine cycle to recuperate low-grade waste heat.

Subcooling refers to a liquid that exists at a temperature lower than its typical boiling point. Water, for example, boils at 373 K and is referred to as "subcooled" at ambient temperature. A subcooled liquid is a suitable condition in which refrigerants, for example, can complete the remaining stages of a cooling system.

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what is the purpose of the fast fourier transform? a. it allows you to look at the trajectory of the device. b. it allows you to fit the plot with a trendline. c. it takes the signal from the position domain and represents it in the frequency domain instead. d. it allows you to plot the velocity v. the position instead of velocity v. time.

Answers

The purpose of the fast Fourier transform is it takes the signal from the position domain and represents it in the frequency domain instead, and it allows you to plot the velocity. The correct options are c and d.

What is the fast Fourier transform?

FFT stands for "Fast Fourier Transform," which is an important measurement method. In the process, it dissects a signal into its individual spectral components and provides frequency information about the signal.

The output of the FFT is a complex vector that includes information about the signal's frequency content. The magnitude reflects the relative strength of the frequency components in comparison to other components.

Therefore, the correct options are c and d.

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tech a says that yaw is when a vehicle deviates from its straight path. tech b says that roll is when the front of the vehicle noses down or rises up. who is correct?

Answers

Both tech a and tech b are correct

Confirming the statement of tech a:

Yaw angle is defined as the angle between the pointing line in the movement of car direction in which it is pointed.

Yaw angle describes the car rotation about vertical axis which is about y-axis. It is the angle between the axis parallel to the vehicle surface in fixed-earth coordinate system.

Yaw then describes a vehicle deviating from a straight path. Hence tech a is correct.

Confirming the statement of tech b:

In high speeds, vehicles tends to tip over. This is angular displacement of vehicle about its longitudinal axis.

When a vehicle tips over, then its weight is thrown out to the outside of corner which results into rolling of the vehicle.

Therefore, when the moving vehicle is turned to the left, then the driver throws to the right. Similarly, when the vehicle turns to the right, then the driver throws to the left which results into rolling of front wheel, causing the front of the vehicle to nose down or rise up.

Hence, tech b is correct.

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Cryptographic systems provide which of the following security services? (Select two.)
a. Non-repudiation
b. Cryptanalysis
c. Encryption
d. Decryption
Confidentiality

Answers

From the given options, two security services that cryptographic systems provide are Non-repudiation and Confidentiality. Hence, options (a) and (e) hold the correct answers.

Cryptographic systems are systems that are designed using a set of rules and algorithms that convert plaintext to ciphertext. By converting plaintext into ciphertext, cryptographic systems ensure that messages or data are transferred more securely. In simple words, cryptographic systems provide services of information security.

Among multiple security services, the two fundamental security services provided by the cryptographic system are non-repudiation and confidentiality.

Non-repudiation: Non-repudiation is a security mechanism in cryptographic systems that prevent the action of denying about sent, received, or processed data or messages.  Non-repudiation provides authenticity, proof of the origin, and integrity of data.Confidentiality: Confidentiality is the security function of the cryptographic system that helps to protect a user's data or identity from being read. Confidentiality ensures that the sensitive information of the user is protected from unauthorized disclosure.

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a technician back probes the ground side of a port fuel injector with a dmm set to dcv. the engine is idling. what reading should the technician see?

Answers

Answer: A technician attaches one lead of a digital voltmeter to the ground terminal of the TP sensor and the other meter lead to the negative terminal of the battery.

Explanation: both technicians are correct

A mass of 5 kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder device at 125 kPa. Initially, 2 kg of the water is in the liquid phase and the rest is in the vapor phase. Heat is now transferred to the water, and the piston, which is resting on a set of stops, starts moving when the pressure inside reaches 300 kPa. Heat transfer continues until the total volume increases by 20 percent.


Determine:

(a) the initial and final temperatures,

(b) the mass of liquid water when the piston first start moving

Answers

a)  The initial and final temprature are 99.61°C and T3 = 259.07°C

b)   The mass of liquid water when the piston first start moving is 0g

Using the data provided:

Initial Pressure = P1 = 125kPa

Mass of Saturated Vapor Liquid = m = 5kg

Initial Mass of Liquid water = mf = 2kg

Initial Mass of Vapor = mg = 3kg

The temperature for a mixture of liquid steam saturated with water according to the thermodynamic table is:

T₁ = 99.61°C

The specific volume is:

vf = 0.001043m³/kg

And the saturated volume is:

vg = 1.6941m³/kg

Therefore, the volume in state 1 will be equal to:

V1 = mfvf + mgvg

V1 = (2kg)(0.001043m³/kg) + (3kg)(1.6941m³/kg)

V1 = 5.084m³

In state 3 then the volume will be equal to:

V3 = 1.2V1

V3 = 1.2(5.084m³)

V3 = 6.1008m³

Then the specific volume will be equal to:

v3 = V₃/m

v3 = 6.1008m³/5kg

v3 = 1.2202m³/kg

For a pressure of 300 kPa and the previous specific volume found through the thermodynamic table, the value of the temperature is:

T3 = 259.07°C

Question b) When the piston first stats moving at P₂ = 300kPa and V₂ = V₁ = 5.084m³

v₂ =V₂/m

v₂ = 5.084m³/5kg

v2 = 1.0168m³/kg

While at 300 kPa the value of the vapor saturated vg = 0.88578m³/kg This implies that the condition is met:

v2 > vg

Therefore, no liquid is there in-cylinder when piston stats moving, mf = 0kg

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A method of coupling tubing without welds, solderor leaks is the use of

Answers

A method of coupling tubing without welds, solder or leaks is the use of a fitting or adapter.

What is a an fitting?

The term fitting is seen as a form of Flexible hoses and metal tubing used to transport fluids are connected together and this is through the use of AN fittings, that is a specific kind of fitting.

Note that Fittings are typically used in conjunction with standards that are similar to act as a link between two threads that aren't naturally compatible. A fitting is required in order to connect a hose to a pump. The pump must be connected to an adaptor in order to connect to many hoses, each of which may have a different standard.

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-i+ (9-5i)-3(2-6i) in standard form with explanation

Answers

The given expression can be represented as 3+12i.

Complex Number

A complex number is represented by the following form: a+bi, where a and b are real numbers.  The variables: a is the real part and bi imaginary part. See an example: 5 + 2i , then:

5 real part2i imaginary part

Regarding operations math, the same properties used for real numbers can be applied to complex numbers. And for solving the operations math with these numbers, it is important to know that i²= -1. Thus, 3i² = 3*(-1)= -3.

When you subtract or sum complex numbers, you can only subtract or sum: the real part with the real part of each complex number and the imaginary part with the imaginary part of each complex number. Here, you can see examples:

(5 + 2i) + (5 + 2i) = 10+4i

(4 + 10i) - (2 + 5i) = 2+5i

Therefore, the result for the -i+ (9-5i)-3(2-6i)  will be:

-i + 9 -5i -6+18i

-6i +3 +18i

3+12i

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There is interdependence between an organization and its information systems". Discuss this statement.

Answers

There is interdependence between an organization and its information systems have a mutual dependency on each other.

What is the organization?

An institution made up of individuals or a group of individuals who gather together to accomplish a single, common goal is referred to as an organization.

Information systems and organizations are mutually influenced by one another. Inability to efficiently advantage of innovative technologies, an organization should be receptive to the effects of data systems, which have an impact on how information systems are designed.

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technician a says that a macpherson strut typically does not include the spring as part of the strut assembly. technician b says that a modified strut typically does not include the spring as part of the strut assembly. which technician is correct?

Answers

Both technicians are correct.

MacPherson struts are a specific type of independent suspension found on a car's front axle. The McPherson strut replaces the steering rod and performs the functions of suspension and vibration dampening at the same time.

The MacPherson strut, which has a cheap production cost, is still a stunningly efficient solution to combine strength, spring, and stability.

Altered strut It differs from a standard MacPherson system since the coil spring is not an interior component of the strut body. It is primarily used in rear-wheel drive automobiles. The spring in a modified strut is situated between the lower control arm and the car's frame.

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how can the philippines government use the unclos in claiming sabah and the kalayaan group of islands? If r is 2 and s is 3 How do I work this problem 2(r s)+4(x) What is an equation of a line, in point-slope form, that passes through (1, - 7) and has a slope of -2/3? [tex]please \: help \: me \: i \: keep \: getting \: the \: wrong \: am \\ answer[/tex]2. The populations of five cities in California are listed below. What is the combined population of San Diego and Fresno?City | Population______________________Los Angeles | 3,928,864______________________San Diego. | 1,381,069______________________San Jose | 1,015,785______________________San Francisco| 852,469______________________Fresno | 515,986 Ana tuvo un accidente. ______ cay de la bicicleta en el parque. A. Me B. Te C. Se D. Nos A person walks from rest to 5.20 meters/second in 10.4 seconds. What is the person's acceleration? what is y = -5/2 - 4 in standard form? Use a graphing calculator to find an equation of the line of best fit for the data. Round the slope to the nearest tenth and the y-intercept to the nearest integer.X: 0 1 2 3 4 5 6 7Y:-8 -5 -2 -1 -1 2 5 8 3. you have two organic compounds, one with no ionizable groups, and soluble in ether and another organic compound soluble in ether at ph 0 (with an ionizable group with a pka of 2.0). describe how you would separate these compounds by extraction. Simplify the expressions:a. (7x+ 2) + (2x +3) =b. (5x + 2) + (8x +3) =c. (5x)(8x +3) = A certain second-order reaction (B products) has a rate constant of 1.45x10^-3 M^-1s^-1 at 27C and an initial half-life of 228 s. What is the concentration of the reactant B after one half-life? In the figure shown at right, the area of the large rectangle is (5x)(8x+1) and the area of the small rectangle is (4x)(2x) which of the following expression represents the area of the shaded region? Find the distance between (2, 5) and (-5, 8). Out of Retries Correct Answer Show Enter an estimate. Round each mixed number to the nearest whole in your estimate. 1 WIN Estimate: 0 Find the difference and enter it in simplest form. 3 Compare the movements and positions of people dancing with the motions of water molecules in liquid water and in water vapor. For the given functions f and g, complete parts (a)-(h). For parts (a)-(d), also find the domain. Chloe makes flapjacks.A pack of flapjacks costs Chloe 60p to make.She sells the flapjacks for a profit of 30%.For how much does Chloe sell a pack of flapjacks? When Nicole Maines was a kid, she liked toA. make block towers.B. ride horses.C. read by herself.D. play with dolls. Two straight lengths of wire are placed on the ground, forming vertical angles. If the measure of one of the angles formed is 72degrees, what are the measures of the other three angles? Explain your answer. (15 points and brainliest) state regulations regarding the sale of alcohol over the internet can negatively impact the business of fine wine distributors, making it all the more critical for their marketers to adjust their marketing strategies based on these factors.