The RLC parallel circuit is known, the input is Current source e(t)= i, (t), and output is y(t) = v(t). please give its second order differential equation and transfer function H (s). i(t) ( İR R iz L ic v(t)

Answers

Answer 1

The RLC parallel circuit is an electrical circuit that contains a resistor (R), an inductor (L), and a capacitor (C) connected in parallel.

The input of the circuit is a current source e(t) = i(t), and the output is y(t) = v(t). To find the second order differential equation of the circuit, we need to derive the current equation and the voltage equation separately.

The voltage across each component in a parallel circuit is the same, so we can write: vR(t) = vL(t) = vC(t) = v(t)The current through each component in a parallel circuit is different, so we can write: iR(t) + iL(t) + iC(t) = i(t).

The current through a resistor is given by Ohm's law: iR(t) = vR(t)/RThe voltage across an inductor is given by Faraday's law: vL(t) = L(diL(t)/dt)The current through a capacitor is given by the equation: iC(t) = C(dvC(t)/dt).

Now, substituting the above equations in the second equation, we get:L(diL(t)/dt) + v(t)/R + C(dvC(t)/dt) = i(t)Differentiating the above equation twice with respect to time, we get the second order differential equation of the RLC parallel circuit: L(d²i(t)/dt²) + (R + 1/C)(di(t)/dt) + i(t)/C = d²e(t)/dt².

The transfer function of the RLC parallel circuit is the ratio of the output voltage to the input current, i.e., H(s) = V(s)/I(s).Taking Laplace transforms of the voltage and current equations, we get:V(s) = I(s)(R + Ls + 1/(Cs))H(s) = V(s)/I(s) = (R + Ls + 1/(Cs))/s²LC + s(RC + 1)L + RThis is the transfer function of the RLC parallel circuit.

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Related Questions

a runway identified as runway 27 serves operations oriented to which approximate direction?

Answers

A runway identified as runway 27 serves operations oriented to the westward direction.

What are runways?

A runway is defined as an airport's paved surface. A runway is used for aircraft takeoff and landing operations. The most important runway, without a doubt, is the primary runway, which is the longest runway that has lighting and instrument landing aids. Runways are usually numbered based on their compass bearings, and they are designated L or R if two runways are close together but not parallel. It's worth noting that the numbers don't signify the degree to which the runway is off of a north-south heading, but rather the runway's magnetic bearing.  

How to identify the approximate direction of operations from the runway designation?

A runway identified as runway 27 serves operations oriented to the westward direction. The runway numbering system is used to determine the runway direction, which is based on its magnetic direction from 0 to 359 degrees. These numbers are used to designate runway headings in tens, as well as for headings within ten degrees. Runway 27 would be the one with the magnetic heading of approximately 270 degrees (270-279). As a result, an aircraft taking off or landing on runway 27 would travel in an approximately westward direction.

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Which unit is used, when specifying a vehicle's height, length and width?
Meters







Millimeters
Kilometres
Centimeters

Answers

Answer:

Centimeters

Explanation:

what are advantages of using sinusoidal Voltages​

Answers

Answer:

The advantages of using a pure sine wave for your appliances and machinery are as follows: Reduces electrical noise in your machinery.

translates to no TV lines and no sound system hum.

Cooking in microwaves is quicker.

Explanation:

The smoothest signal is a sine wave, and sine waves are the basis of all functions.

Every other continuous periodic function is a basis function, which means that it can be described in terms of sines and cosines.

For instance, using the Fourier series, I can describe the fundamental Sinusoidal frequency and its multiples in terms of the triangle and square waves.

A 4-m-high and 6-m-long wall is constructed of twolarge 2-cm-thick steel plates (k 5 15 W/m·K) separated by1-cm-thick and 20-cm wide steel bars placed 99 cm apart. Theremaining space between the steel plates is filled with fiber-glass insulation (k 5 0.035 W/m·K). If the temperature dif-ference between the inner and the outer surfaces of the wallsis 22°C, determine the

Answers

Answer:

fart

Explanation:

a pressure cooker is a pan that cooks food much faster than ordinary pans by maintaining a higher pressure and temperature during cooking. the pressure inside the pan is controlled by a pressure regulator (the petcock) which keeps the pressure at a constant level by periodically allowing some steam to escape, thus preventing any excess pressure buildup. a certain pressure cooker has a volume of 6 l and an operating pressure of 75 kpa gage. initially, it contains 1 kg of water. heat is supplied to the pressure cooker at a rate of 500 w for 30 min after the operating pressure is reached. assuming an atmospheric pressure of 100 kpa, determine: a) the temperature at which cooking takes place. b) the amount of water left in the pressure cooker at the end of the process. assume some liquid water is still in the pan.

Answers

More cooking is done before the water actually begins to boil thanks to the raised pressure inside the cooker, which raises the boiling point of water above 1000C. In the end, food cooks more quickly.

Slow-cooked meals can be quickly prepared with pressure cookers. They are efficient in terms of electricity consumption and are excellent for tenderizing less expensive portions of meat. They are a healthy cooking method since they effectively retain nutrients and can cut cooking times by up to 50%. Water boils at 121°C (250°F) at that pressure. As a result, food may cook at considerably greater temperatures than it could under atmospheric pressure. Additionally, because cooking reactions quicken at higher temperatures, food cooks more quickly it is a good technology.

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The space between two square flat parallel plate is filled with oil. Each side of
the plate is 600mm. The thickness of the oil films is 12.5mm. The upper
plate, which moves at 2.5m /s, requires a force of 98.1 N to maintain the
speed. Determine
I.The dynamic viscosity of the oil in poise.
Ii.The kinematic viscosity of the oil in strokes if the specific gravity of the oil
is 0.95

Answers

The dynamic viscosity of the oil in poise is 13.625 pois

The kinematic viscosity of the oil in strokes is 14.34

How to solve for the dynamic viscosity

F viscous is given as n*  ΔFr / Δy

where n = F * Δy / A * ΔVn

We have to define the terms of the formula

Δy = 12.5 x 10⁻³

ΔVr = 2.5m /s

A = 60 x 60 cm² = 0.36m

F = 98.1 n

We have to put the values in the formula

98.1 n *  12.5 x 10⁻³ /  0.36m * 2.5m /s

n = 1.3625  ns / m²

The kinematic viscosity of the oil in strokes if the specific gravity of the oil is 0.95

y = n / e

n =  1.3625  

e = 0.95 x 10³

y = 1.3625  / 0.95 x 10³

= 1.434 x 10⁻³

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Realiza las siguientes conversiones.

4 Hm2 a Dm2=_______________

21345 Cm2 a M2=_____________

0,592 Km2 a M2=______________

0,102 M2 a Cm2=______________

23911 Km2 a Hm2=_____________

Answers

Answer:

a) 4 hectómetros cuadrados equivalen a 400 decámetros cuadrados.

b) 21345 centímetros cuadrados equivalen a 2,135 metros cuadrados.

c) 0,592 kilómetros cuadrados equivalen a 592000 metros cuadrados.

d) 0,102 metros cuadrados equivalen a 1020 centímetros cuadrados.  

e) 23911 kilómetros cuadrados equivalen 2391100 hectómetros cuadrados.

Explanation:

a) 4 hectómetros cuadrados a decámetros cuadrados:

Según las unidades de área y sus escalas utilizadas por el Sistema Internacional de Pesos y Medidas, un hectómetro cuadrado equivale a 100 decámetros cuadradps. Entonces, obtenemos el dato equivalente por la siguiente regla de tres simple:

\(x = 4\,Hm^{2}\times\frac{100\,Dm^{2}}{1\,Hm^{2}}\)

\(x = 400\,Dm^{2}\)

4 hectómetros cuadrados equivalen a 400 decámetros cuadrados.

b) 21345 centímetros cuadrados a metros cuadrados:

Según las unidades de área y sus escalas utilizadas por el Sistema Internacional de Pesos y Medidas, un metro cuadrado equivale a 10000 centímetros cuadrados. Entonces, obtenemos el dato equivalente por la siguiente regla de tres simple:

\(x = 21345\,cm^{2}\times \frac{1\,m^{2}}{10000\,cm^{2}}\)

\(x = 2,135\,m^{2}\)

21345 centímetros cuadrados equivalen a 2,135 metros cuadrados.

c) 0,592 kilómetros cuadrados a metros cuadrados:

Según las unidades de área y sus escalas utilizadas por el Sistema Internacional de Pesos y Medidas, un kilómetro cuadrado equivale a 1000000 metros cuadrados. Entonces, obtenemos el dato equivalente por la siguiente regla de tres simple:

\(x = 0,592\,km^{2}\times \frac{1000000\,m^{2}}{1\,km^{2}}\)

\(x = 592000\,m^{2}\)

0,592 kilómetros cuadrados equivalen a 592000 metros cuadrados.

d) 0,102 metros cuadrados a centímetros cuadrados:

Según las unidades de área y sus escalas utilizadas por el Sistema Internacional de Pesos y Medidas, un metro cuadrado equivale a 10000 centímetros cuadrados. Entonces, obtenemos el dato equivalente por la siguiente regla de tres simple:

\(x = 0,102\,m^{2}\times \frac{10000\,cm^{2}}{1\,m^{2}}\)

\(x = 1020\,cm^{2}\)

0,102 metros cuadrados equivalen a 1020 centímetros cuadrados.

e) 23911 kilómetros cuadrados a hectómetros cuadrados:

Según las unidades de área y sus escalas utilizadas por el Sistema Internacional de Pesos y Medidas, un kilómetro cuadrado equivale a 100 hectómetros cuadrados. Entonces, obtenemos el dato equivalente por la siguiente regla de tres simple:

\(x = 23911\,km^{2}\times \frac{100\,Hm^{2}}{1\,km^{2}}\)

\(x = 2391100\,Hm^{2}\)

23911 kilómetros cuadrados equivalen 2391100 hectómetros cuadrados.

Calculate the polar radius of gyration of the shaded area about its centroid C. Assume t = 130 mm, a = 465 mm, b = 565 mm ko = ... mm

Answers

The shaded area's polar radius of gyration around its centroid C. Assume t = 130 mm, a = 465 mm, b = 565 mm ko = 253 mm.

The difference between the area of the complete polygon and the area of the unshaded portion inside the polygon is the area of the shaded region. There are two methods for the area of the shaded component to appear in polygons. The darkened area can be found either in the polygon's centre or on one of its sides. You might occasionally be necessary to determine the size of shaded areas. The area of the shaded zone is often calculated by deducting the area of a smaller inner form from the area of a larger outer shape. "Sector" of a circle is represented by the darkened area. A sector is the area of a circle that is bounded by two radii and an arc.

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What are some drawbacks of BGP? What is the biggest problem?

Answers

Some drawbacks of BGP (Border Gateway Protocol) include its slow convergence, complexity, and vulnerability to security threats. BGP's slow convergence can result in network instability, as it may take a considerable amount of time for routers to update their routing tables after changes in the network topology.

This delay can lead to packet loss, increased latency, and overall decreased network performance. The complexity of BGP can make configuration and management challenging, especially in large-scale networks. This complexity often requires experienced network administrators who are familiar with BGP's numerous features and options. Misconfigurations can lead to routing loops, suboptimal routing, and even network outages. BGP is also susceptible to security threats such as route hijacking, route leaks, and prefix hijacking. Attackers can exploit BGP's trust-based nature to propagate false routing information, potentially causing traffic to be rerouted, intercepted, or dropped. The biggest problem associated with BGP is arguably its vulnerability to security threats, as these can have severe consequences for the integrity and reliability of the Internet. Mitigating these threats requires both technical and cooperative efforts from network operators and the broader Internet community.

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Consider a homogeneous spherical piece of radioactive material of radius ro = 0.04 m that is generating heat at a constant rate of ėgen = 5 x 107 w/m3 . the heat generated is dissipated to the environment steadily. the outer surface of the sphere is maintained at a uniform temperature of 110°c and the thermal conductivity of the sphere is k = 15 w/m·k. assuming steady one-dimensional heat transfer, (a) express the differential equation and the boundary conditions for heat conduction through the sphere, (b) obtain a relation for the variation of temperature in the sphere by solving the differential equation, and (c) determine the temperature at the center of the sphere.

Answers

Answer:

Please report my answer

Explanation:

I want my account deleted

can somebody please help me

can somebody please help me

Answers

Answer:

C. 420 x 594 millimeters

how do you know when an equation is (In)​

Answers

If a vertical line crosses the relation on the graph only once in all locations, the relation is a function. However, if a vertical line crosses the relation more than once, the relation is not a function. Using the vertical line test, all lines except for vertical lines are functions

what is the dimensions of beta​

Answers

Answer:

byee byee bbbbbbbbbbbb

Beta dimensions consist of -1,-2,-3

In order for communication to be considered two-way, _________ is necessary a. channel b. message c. noise d. feedback e. circuit

Answers

Answer:

the answer c or e or do wha t the first guy do

Describe the blade design for a wind turbine that you would choose. Why did you choose this design?

Answers

Answer: aerofoil type blades

Explanation: they are more difficult to make but offer better performance and higher rotational speeds making them ideal for electrical energy generation.

Competence refers to speakers' tacit, unconscious knowledge of grammar.
True
False

Answers

False, competence refers to speakers' tacit, unconscious knowledge of grammar.

How to determine the statement

Competence refers to speakers' underlying knowledge and ability to use a language, which includes both conscious and unconscious knowledge of grammar.

Even if the speaker is unable to explicitly state the rules, it includes their innate sense of what is or is not grammatically correct.

This ingrained understanding is frequently referred to as "linguistic competence," which is separate from "performance," which refers to the actual use of language in settings that might be influenced by things including memory impairment, speech impediments, and situational considerations.

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Pre-Laboratory Task 4 : From the AD711 data sheets, determine the AD711s typical maximum output current limit and therefore calculate the maximum voltage at the output allowed for a load resistance va

Answers

From the AD711 data sheets, the typical maximum output current limit is 20 mA. This implies that the maximum voltage at the output allowed for a load resistance can be calculated by multiplying the load resistance by the maximum current limit.

This can be expressed mathematically as \(Vout = Iload × Rload\), where Vout is the maximum voltage at the output allowed for a load resistance, Iload is the maximum output current limit, and Rload is the load resistance.Therefore, the maximum voltage at the output allowed for a load resistance is \(Vout = 20 mA × Rload.\)

This means that for a load resistance of 500 Ω, the maximum voltage at the output allowed is\(Vout = 20 mA × 500 Ω = 10 V\). Hence, the typical maximum output current limit is 20 mA, and the maximum voltage at the output allowed for a load resistance of 500 Ω is 10 V. This information can be found in the AD711 data sheets.

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Write an Essay describing in your own words, the two-way Communication Cycle naming all the stages and explaining what goes on at each stage. Illustrate any two barriers that may occur at each of the stages. A correctly labelled diagram is essential for your essay.​

Answers

n

e

g

r

o

means black in spanish!

you wish to set california (abbreviated ca) as a default value. what do you type into the expression builder?

Answers

To set "California" as the default value using the expression builder, you would type the following: "ca" or "California".

The exact syntax may vary depending on the specific system or programming language you are using, but in general, you would need to assign the desired default value to the corresponding variable or field. In this case, you would use the abbreviation "ca" or the full name "California" as the value to be set as the default.

It's important to consult the documentation or guidelines of the specific system or programming language you are working with to ensure the correct syntax and usage for setting default values using the expression builder.

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Every motor vehicle except for
grade.
must be equipped with a parking brake that can hold a vehicle stationary on any
a) Motorcycles
b) Ambulances
c) Garbage trucks

Answers

Answer:

Motor Cycles

Explanation:

Motor cycles have no parking brake

((X•Y')'(Y'+Y'•(Y')'•Y•Z+Z))

Answers

Answer:

huh?

Explanation:

Liquid water at 20°C is heated in a chamber by mixing it with saturated steam. Liquid water enters the chamber at the steam pressure at a rate of 4.6 kg/s and the saturated steam enters at a rate of 0.19 kg/s. The mixture leaves the mixing chamber as a liquid at 45°C. If the surroundings are at 20°C, determine:
a. the temperature of saturated steam entering the chamber,
b. the exergy destruction during this mixing process,
c. the second-law efficiency of the mixing chamber.

Answers

To solve this problem, we will use the conservation of mass and energy, as well as the definition of exergy and second-law efficiency.

a. The temperature of saturated steam entering the chamber can be found by using the steam tables. At the pressure of the steam entering the chamber, which is not given in the problem, the saturation temperature is slightly above 100°C. Since the mixture leaves the chamber as a liquid at 45°C, we can assume that the steam is also at 45°C, which is the final temperature of the mixture. Therefore, the temperature of the saturated steam entering the chamber is 45°C.

b. The exergy destruction during this mixing process can be calculated as the difference between the inlet exergy and the outlet exergy of the system. The inlet exergy can be calculated as the sum of the exergy of the liquid water and the exergy of the saturated steam, which are both at the same temperature of 45°C. The outlet exergy can be calculated as the exergy of the liquid water at 45°C, assuming that there is no exergy transfer to the surroundings. The exergy destruction is then:

ΔE = (m_water * e_water + m_steam * e_steam) - m_outlet * e_outlet

where m_water and m_steam are the mass flow rates of the liquid water and saturated steam, respectively, and e_water, e_steam, and e_outlet are the specific exergies of the liquid water, saturated steam, and outlet liquid water, respectively.

Using the steam tables, we can find that the specific exergies of the liquid water and saturated steam at 45°C are 199.23 kJ/kg and 2513.9 kJ/kg, respectively. Therefore, the exergy destruction is:

ΔE = (4.6 kg/s * 199.23 kJ/kg + 0.19 kg/s * 2513.9 kJ/kg) - 4.79 kg/s * 199.23 kJ/kg
ΔE = 6253.7 kW

c. The second-law efficiency of the mixing chamber can be defined as the ratio of the actual work output (which is zero in this case) to the maximum possible work output, which is the inlet exergy minus the exergy destruction. Therefore, the second-law efficiency is:

η_II = 0 / (m_water * e_water + m_steam * e_steam - ΔE)
η_II = 0 / (4.6 kg/s * 199.23 kJ/kg + 0.19 kg/s * 2513.9 kJ/kg - 6253.7 kW)
η_II = 0

This means that the mixing process is not reversible, and there is no useful work output.

What is the outer part of a ship called?

Answers

The outer part of a ship is called deck. the tallest deck along the length of the vessel, from stem to stern.

Vehicle deck: (naval) a deck or decks used to transport vehicles on amphibious assault ships; a deck used for a similar purpose aboard passenger ferries and other commercial vessels. Any deck that is outside is a weather deck. The watertight body of a ship, boat, or flying boat is known as the hull. The hull may be completely or partially covered by a deck, or it may open at the top (like a dinghy). A deckhouse and other superstructures, such as a funnel, derrick, or system, may be located on top of the deck.

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select three of the prerequisites for becoming a civil engineer

Answers

Aspiring civil engineers generally begin their college careers by enrolling in chemistry, physics, and advanced mathematics courses. Some programs may include classes in computer-aided design (CAD) as part of the core requirements.


Please give Brainiest

The future and success of the electric car largely depend on the
development and improvement of one of its key components: the
battery. Science has been looking for alternatives to lithium for some time, such as graphene, carbon dioxide, zinc-air, but it seems that now a solution has begun to appear on the horizon: solid-state batteries.
Regarding solid-state batteries, investigate the following:
1. Describe the main features of the technology; eg how they operate, what they are made of, why they are called "solid state", what their components are.
2. Describe the reasons why it is considered a superior technology to the batteries currently used for electric vehicles. There are those who claim that they are the "holy grail" of batteries for electric vehicles.
3. Describe at least 3 potential benefits and 3 risks of the developed technology
4. Describe what would be the potential to produce (manufacture) this type of battery in Ecuador, if any.
5. Include the bibliography consulted, in an appropriate format.

Answers

1) The main Features of Solid-State Batteries are:

- Operation

- Composition

- Solid-State Designation

2) The reasons why we have a Superiority of Solid-State Batteries are:

- Energy Density

- Safety

- Faster Charging

3) The 3 potential benefits and risks are:

Potential Benefits:

- Improved Safety

- Longer Lifespan

- Environmental Friendliness

Potential Risks:

- Cost

- Manufacturing Challenges

- Limited Scalability

4) The potential for solid-state battery production in Ecuador would depend on various factors such as:
- access to the necessary raw materials.

- technological infrastructure.

- Research and development capabilities.

- Market demand.

5) Bibliography:

- Goodenough, J. B., & Park, K. S. (2013). The Li-ion rechargeable battery: A perspective. Journal of the American Chemical Society, 135(4), 1167-1176.

- Tarascon, J. M., & Armand, M. (2001). Issues and challenges facing rechargeable lithium batteries. Nature, 414(6861), 359-367.

- Janek, J., & Zeier, W. G. (2016). A solid future for battery development. Nature Energy, 1(7), 16141.

Manuel, J. (2021). Solid-state batteries: The next breakthrough in energy storage? Joule, 5(3), 539-542.

What are the benefits of Solid State Batteries?

1) The main Features of Solid-State Batteries are:

- Operation: Solid-state batteries are a type of battery that uses solid-state electrolytes instead of liquid or gel-based electrolytes used in traditional batteries. They operate by moving ions between the electrodes through the solid-state electrolyte, enabling the flow of electric current.

- Composition: Solid-state batteries are typically composed of solid-state electrolytes, cathodes, and anodes. The solid-state electrolyte acts as a medium for ion conduction, while the cathode and anode store and release ions during charge and discharge cycles.

- Solid-State Designation: They are called "solid-state" because the electrolytes used are in a solid state, as opposed to liquid or gel-based electrolytes in conventional batteries. This solid-state design offers advantages such as improved safety, higher energy density, and enhanced stability.

2) The reason why we have a Superiority of Solid-State Batteries is:

- Energy Density: Solid-state batteries have the potential to achieve higher energy density compared to conventional lithium-ion batteries. This means they can store more energy in a smaller and lighter package, leading to increased driving range for electric vehicles.

- Safety: Solid-state batteries are considered safer because they eliminate the need for flammable liquid electrolytes. This reduces the risk of thermal runaway and battery fires, addressing one of the key concerns with lithium-ion batteries.

- Faster Charging: Solid-state batteries have the potential for faster charging times due to their unique structure and improved conductivity. This would significantly reduce the time required to charge electric vehicles, enhancing their convenience and usability.

3) The 3 potential benefits and risks are:

Potential Benefits:

- Improved Safety: Solid-state batteries eliminate the risk of electrolyte leakage and thermal runaway, improving the overall safety of electric vehicles.

- Longer Lifespan: Solid-state batteries have the potential for longer cycle life, allowing for more charge and discharge cycles before degradation, leading to increased longevity.

- Environmental Friendliness: Solid-state batteries can be manufactured with environmentally friendly materials, reducing the reliance on rare earth elements and hazardous substances.

Potential Risks:

- Cost: Solid-state batteries are currently more expensive to produce compared to conventional lithium-ion batteries. This cost factor may affect their widespread adoption.

- Manufacturing Challenges: The large-scale production of solid-state batteries with consistent quality and high yields is still a challenge, requiring further research and development.

- Limited Scalability: The successful commercialization of solid-state batteries for electric vehicles on a large scale is yet to be achieved. Scaling up production and meeting the demand may pose challenges.

4) Potential for Battery Production in Ecuador:

The potential for solid-state battery production in Ecuador would depend on various factors such as:
- access to the necessary raw materials.

- technological infrastructure.

- Research and development capabilities.

- Market demand.

5) Bibliography:

- Goodenough, J. B., & Park, K. S. (2013). The Li-ion rechargeable battery: A perspective. Journal of the American Chemical Society, 135(4), 1167-1176.

- Tarascon, J. M., & Armand, M. (2001). Issues and challenges facing rechargeable lithium batteries. Nature, 414(6861), 359-367.

- Janek, J., & Zeier, W. G. (2016). A solid future for battery development. Nature Energy, 1(7), 16141.

Manuel, J. (2021). Solid-state batteries: The next breakthrough in energy storage? Joule, 5(3), 539-542.

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For the network of Fig. below, draw the output waveform if Vr = 4.3V , R = 1000Omega and Vi=25 sin ot. Assume an Si diode is used. + R D V_{i}; V_{r}; V_{o}

For the network of Fig. below, draw the output waveform if Vr = 4.3V , R = 1000Omega and Vi=25 sin ot.

Answers

56% min then i’ll please reply please follow up the channel link or link link or email to

How did engineers help to create a ceiling fan

Answers

Answer:

The electric ceiling fan was invented in 1882 by engineer and inventor, Philip Diehl. He had earlier invented an electric sewing machine and adapted the motor from this invention to create the ceiling fan. He called his invention the “Diehl Electric Fan” and it was such a success that he soon had many other people competing with him.

Explanation:

With _____, only one criterion must evaluate true in order for a record to be selected and with _____, all criteria must be evaluate true in order for a record to be selected.

a. parameter criteria, double criteria
b. function criteria, IF criteria
c. simple criteria, complex criteria
d. OR criteria, AND criteria

Answers

Answer:

d

Explanation:

OR criteria, AND criteria

In an OR criteria, it doesn't need all the records to be true. Just one record is enough and all other criterion becomes true.

In an AND criteria, it's unlike the OR criteria and works in opposite. It needs every member of the record to be true to be able to adjudge the whole record as true.

And as such, we have

With OR criteria, only one criterion must evaluate true in order for a record to be selected and with AND criteria, all criteria must be evaluate true in order for a record to be selected.

The Keystone Pipeline has an inside diameter of 36 inches and carries a flow rate of 590,000 barrels of crude oil per day at 40 degree C. If the pipe is new, non-corroded steel, estimate the pump horsepower required per mile of pipe. Use rho = 1.67 slug/ft^3 and H = 1.11 times 10^-5 slug/ft*sec for the oil. This pipeline is in a cold environment, does it make sense that the oil is so warm?

Answers

The pump horsepower required per mile of pipe is approximately 68.3 times the pump efficiency.

To estimate the pump horsepower required per mile of pipe, we can use the following formula:

P = Q * rho * H * L / (3960 * eff)

Where P is the pump horsepower, Q is the flow rate in barrels per day, rho is the density of the oil, H is the viscosity of the oil, L is the length of the pipe in feet, and eff is the pump efficiency.

Plugging in the given values, we get:

P = 590,000 * 1.67 * 1.11e-5 * 5280 / (3960 * eff)
P = 68.3 * eff

Therefore, the pump horsepower required per mile of pipe is approximately 68.3 times the pump efficiency.

As for the second part of the question, it is not unusual for crude oil to be transported at elevated temperatures to reduce its viscosity and make it easier to pump. However, given that the Keystone Pipeline is located in a cold environment, it is likely that the oil is cooled before it is delivered to its destination.

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a ? transformer is a precision two-winding transformer used to step down high voltage to allow safe voltage measurement.

Answers

Potential (or voltage) transformer is a precision two-winding transformer used to step down high voltage to allow safe voltage measurement.

The type of transformer being described in the question is called a potential transformer or a voltage transformer. It is a specialized transformer that is designed to step down high voltage to a lower voltage, typically 120 or 240 volts, for safe measurement or monitoring purposes. Potential transformers are commonly used in power systems to provide accurate voltage measurements for meters, relays, and other protective devices.

They are also used in electrical testing and calibration to accurately measure high voltages without the risk of electrical shock or damage to the measuring instrument.

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