Figure 1 shows the internal circuitry for a charger prototype. You, the development engineer, are required to do an electrical analysis of the circuit by hand to assess the operation of the charger on different loads. The two output terminals of this linear device are across the resistor, RL. You decide to reduce the complex circuit to an equivalent circuit for easier analysis. i) Find the Thevenin equivalent circuit for the network shown in Figure 1, looking into the circuit from the load terminals AB. (9 marks) R1 R2 A 40 30 20 V R4 60 B Figure 1 ii) Determine the maximum power that can be transferred to the load from the circuit. (4 marks) 10A R330 www RL

Answer:

15psig

Explanation:

Answer:

μb = 0.096

μc  = 0.073

Explanation:

member AB:

-800( 4/3 ) + Nb (2) = 0

Nb (2) = 3200/3

Nb = 533.3N

Post BC:

summation of force along the y axis=0

Nc + Nb + 150(3/5 ) -50(9.81)=0

Nc + 533.3 + 150(3/5 ) -50(9.81)=0

Nc = 933.83 N

Also (-4/5)(150)(3) + Fb(0.7)= 0

Fb = (4/5)(150)(3)/0.7 = 51.429 N

Likewise alog the x axis,

4/5(150) - Fc -Fb = 0

4/5(150) - Fc -51.429 = 0

Fc = 4/5(150)  -51.429 =68.571 N

μb = Fb/Nb = 51.429/533.3  = 0.096

μc = Fc/Nc = 68.571 / 933.83 = 0.073

The given two-dimensional velocity field is given by u = 1 + y and v = 1.To find the equation of the streamline, we need to integrate the velocity components.

∫dx / u = ∫

dy / v= c,

where c is a constant.

∫dx / (1 + y) = ∫dy /

1= c,

where c is a constant.

Let's integrate both of them to find the equation of the streamline.y + ln(1 + y) = x + c......(1)The equation (1) is the main answer.For a streamline that passes through the origin, the value of c is 0, and we have the following equation for the streamline:y + ln(1 + y) = xPlotting the streamline on a graph:3. Determine the acceleration field for a three-dimensional flow with velocity components u = -X, v = 4 xay, and

w = x - y.

The given three-dimensional flow has velocity components

u = -X,

v = 4 xay, and

w = x - y.

The acceleration field for the three-dimensional flow is given as:A = ∂v / ∂t + (v · ∇)v

Let's first find the value of ∇v:∇v = i (d / dx) + j (d / dy) + k (d / dz) v∇v

= -i - 4xj + k

Thus, v · ∇v

= (4xa^2)i + k· (d / dz) v

= i + 0j - 1kThus,

A = ∂v / ∂t + (v · ∇)vA

= ∂(-X) / ∂t + (4xa^2)i - k... (1)

We need to find ∂v / ∂t from the given data:∂v / ∂t = (d / dt) 4xay

= 4a(d / dt) y

= 4av

= 4a^2y

The acceleration field (1) becomes:A = 4a^2yi - k

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The characteristics of random motion include unpredictability, constant motion, and no pattern or direction. Random motion is different from directed motion because directed motion has a specific pattern or direction and is not unpredictable.

If the average total displacement in either the x- or the y-direction is zero for all times, it does not necessarily mean that the displacement is zero. This is because the total displacement can be positive and negative, which cancels out to an average of zero. The displacement changes with time because the motion of the object is random and unpredictable.

The signs of the displacement values indicate the direction of the motion. Positive values indicate motion in one direction, while negative values indicate motion in the opposite direction. These values affect the average x and y displacement because they determine the overall direction of motion. The mean squared distance is affected by the magnitude of the displacement values.

For the bead's average x and y displacement, the values of  and  can change if you consider a longer time interval. This is because random motion is unpredictable and can change over time. The values may increase or decrease depending on the motion of the bead during the longer time interval.

For the x and y displacement of an individual bead, the values of x and y can also change if you consider a longer time interval. This is because the motion of the bead is random and can change direction or speed over time. The values may increase or decrease depending on the motion of the bead during the longer time interval.

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Answer:

The risks associated with the handling of liquid hydrogen are fire, explosion, asphyxiation and extremely low temperature exposure.

Answer:

fire, explosion, asphyxiation, extremely low temperature exposure/cold burns

Explanation:

Answer:

  4

Explanation:

A "board foot" is 1/12 of a cubic foot. It is the volume of a board 1" thick and 1 foot square.

Here, the board is 1" thick, so the number of board feet is numerically equal to the number of square feet of area it has.

  (1/2 ft)(8 ft) = 4 ft²

The number of board feet is 4.

The required correct answer is mViewPager.setCurrentItem(2)

Explanation:ViewPager is an android widget that allows the user to swipe left and right to view pages of content. It is frequently used in apps that have a large number of pages or require frequent navigation. ViewPager can be used in a number of ways, and its use is not limited to displaying images. It can also be used to display text, HTML, or a variety of other content types.There are several ways to set the current item in ViewPager, but the correct way to set the current item for a ViewPager to the third item is to call the method setCurrentItem(2).For example, if mViewPager is the ViewPager instance, mViewPager.setCurrentItem(2) will set the current item of the ViewPager to the third item. The third item corresponds to the index of 2 since ViewPager indexes start at 0.

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The correct answer is both the tech are right that a rod heater can be used to install semi-floating wrist pins and semi-floating wrist pins can be pressed into the rods.

After some kind of friction secures the pin to the connecting, the piston can freely pivot inside the bosses of the piston pin. The most common method of attaching the semi-floating wrist pins to the rod is by press-fitting. The little end of the connecting rod is heated, which expands the metal and the diameter of the hole.If you're using high-level forced induction, nitrous oxide injection, high rpm or heavy sustained loading on your performance engine, upgraded semi-floating wrist pins represent the insurance deal of the century. Wall thickness is a critical factor based on application.

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B) False.Unstructured and semi-structured data can be processed by Hadoop to extract valuable insights and patterns, but they are not automatically transformed into a structured format suitable for a traditional data warehouse.

Hadoop is a framework designed to handle large volumes of diverse data types, including unstructured and semi-structured data. It provides tools like MapReduce and Hadoop Distributed File System (HDFS) for processing and storing such data. However, a data warehouse typically requires structured data with predefined schemas for efficient querying and analysis. Therefore, additional steps are needed to transform the processed data from Hadoop into a structured format before it can be loaded into a data warehouse. This transformation process may involve extracting relevant information, performing data cleaning and integration, and applying a schema to organize the data in a structured manner.

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Answer:  The United States must lead the space race to prevent future wars.

Explanation: Hope this helps

Answer:

The risk associated with entering the space race outweighs the possible benefits.

Explanation:

It's explaining it in the speech.

Answer:

ee

Explanation:

This is an over the top question

The program requires a sequence control structure; First, we get input for the variables, and then use the formula to calculate the amount of calories burnt.

The program in python is as follows, where comments (in italics) are used to explain each line.

#This gets input for age, in years

age = int(input("Age (years): "))

#This gets input for weight, in pounds

weight = int(input("Weight (pounds): "))

#This gets input for heart rate, in beats per minutes

heart_rate = int(input("Heart Rate (beats per minutes): "))

#This gets input for time, in minutes

time = int(input("Time (Minutes) : "))

#This calculates the calories burnt for men

calories_man = ((age * 0.2017) - (weight * 0.09036) + (heart_rate * 0.6309) - 55.0969) * time / 4.184

#This calculates the calories burnt for women

calories_woman = ((age * 0.074) - (weight * 0.05741) + (heart_rate * 0.4472) - 20.4022 ) * time / 4.184

#This prints the calories burnt for men

print('Men: %0.2f calories' % calories_man)

#This prints the calories burnt for women

print('Women: %0.2f calories' % calories_woman)

Please note that the program does not check for valid inputs

See attachment for program output

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A chain fall locks it’s elevated load is place using an automatic brake.

A chain fall locks it’s elevated load is place using an automatic brake.

Automatic emergency braking (AEB) is a safety feature that may detect when a collision is likely to happen and automatically apply the brakes to either slow down the vehicle before impact or stop it altogether to prevent a collision.

Additionally, it found that injuries from these incidents decreased by 56%. Reverse automated braking systems have been associated with a 78% reduction in crashes when compared to vehicles that merely have a reverse camera.

In general, automatic emergency braking is intended to engage at highway speeds, provided the front collision warning sensors can identify the car in front of them. In towns, newer systems operate at slower rates.

Thus, an automatic brake.

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An access control system controls access to area restricted area or facility using physical and computer-related devices, equipment along with authentication and authorization mechanisms.

The term that least accurately describes what happens when abnormal combustion raises the temperature and pressure inside the combustion chamber is vapor lock. The correct option is d. vapor lock.

Abnormal combustion can lead to various issues in an engine, such as:
a. ping - a metallic noise caused by the uncontrolled combustion of the air-fuel mixture.
b. spark knock - a knocking noise caused by premature ignition of the air-fuel mixture.
c. detonation - the uncontrolled and explosive burning of the air-fuel mixture, which can cause engine damage.
d. vapor lock - a situation where fuel changes from liquid to gas before reaching the combustion chamber, typically due to high temperatures in the fuel system.

Among these terms, vapor lock is least related to the temperature and pressure increase inside the combustion chamber, as it primarily deals with the fuel system rather than the combustion process itself.

Vapor lock is the least accurate term describing the effects of abnormal combustion on the temperature and pressure inside the combustion chamber. The correct option is d. vapor lock.

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6.25×10⁻¹⁸ electrons will flow through a copper wire.

Electrons can be defined as the sum of atomic particles that is the career of negative charge, they are responsible for the chemical property of an element, the electrons are present in the shell.

Use formula ( I = ne/t )

Here,

number of electron

electron =1.6 x 10¯¹9 C

We have a relation between charge and current as

Charge = Current×time i.e

Q = i×t.

Now we have current = 10 amp & time = 10sec from given data.

Therefore charge Q = 10×1 = 100 coulombs.

Again we have a relation between charge and no of electrons

I.e no of electrons= total charge / 1.6×10⁻¹⁹

So, no of electrons = ( 100C/1.6×10⁻¹⁸ )

= 6.25×10⁻¹⁸ electrons.

Therefore, 6.25×10⁻¹⁸ electrons will flow through a copper wire carrying 10 amps current for 10 sec

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Answer:

Boring, since they would have the same personality, name, and occupation... it would be like doing the same thing every day or always talking to the same person. It would be impossible to figure out who is who since their looks would be the same as well. Although they might be fun to hang around with them if they had the same humor as you, or liked doing the same activities.

Explanation:

hope this helps:)

A group of friends that are identical in every manner would prevent opportunities for personal development and learning, but having friends with similar interests and values might foster a feeling of community and shared experiences.

Thus, Lack of diversity would limit opportunities for new viewpoints, original ideas, and varied experiences. There might not be enough intellectual and emotional stimulation and repetitious conversations and exchanges.

Because everyone would address problems and obstacles in the same way, life might become predictable and static.

Although conflicts and disagreements may be less frequent, the lack of diverse opinions may make it more difficult to come up with original solutions.

Thus, A group of friends that are identical in every manner would prevent opportunities for personal development and learning, but having friends with similar interests and values might foster a feeling of community and shared experiences.

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Answer:

flashlight???

Explanation:

Answer:

its b

Explanation:

1. The 4 will be compared to first the number 7.

2. False, memory can be allocated after a program is already running. Memory allocation can occur using pointers with malloc() or calloc() functions.

3. To find a value that is in an unordered array of 100 items, the linear search must examine an average of 50 items.

4. To locate a value that is in an ordered array of 50 items, the linear search must examine at most 50 values.

5. The order that data will be in after the first pass, if a selection sort is used to arrange the number 7 5 3 9 2 6 in ascending order is: 2 5 3 9 7 6.6. The statement "typedef int oneDArray[20];" makes oneDArray an alias for a data type that holds 20 integers.

It declares the alias `oneDArray` for an array of 20 integers. This means that after the declaration, `oneDArray x` will declare `x` as an array of 20 integers.

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The body's right and left halves are separated by the sagittal plane. Sagittal Plane (Lateral Plane): A horizontal plane that runs vertically from front to rear and separates the body into its right and left sides.

Proximal: Closer to, closer to the source. Dorsal: Towards the back, close to the upper surface. Ventral: At the base or in the belly. superior means above or beyond. Below, under are inferior.

In medicine, it describes regions of the body that are farther from the centre. For instance, the hand is far from the shoulder. The wrist is distal to the thumb. Proximal is the opposite of distal. While proximal denotes closeness, distal denotes distance.

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Answer:

a

Explanation:

It is important to keep welders properly tuned because it "Reduces air pollution" (Option A).

Welding machinery, welding guns, and welders are among the most important items for a welding expert to have. Welding machines provide heat that melts steel pieces, allowing them to be bonded.

Most welders also use an angle grinder to smooth out joints, wire brushes to clean or abrade steel surfaces before welding etc.

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Full Question:

Why is it important to keep portable welders properly tuned?

a-Reduce air pollution

b-So they run quieter

c-To produce smoother welding current

d-All of the above

Answer:

True

Explanation:

they put it through a process to be able to reuse it

The spacing between sidebands is equal to 6 kHz.

Given the following data:

A sideband can be defined as a band of frequencies that are lower or higher than the carrier frequency due to the modulation process. Thus, it will either be lower than or higher than the carrier frequency.

Generally, the frequency of the modulating signal is equal to the spacing between the sidebands. Therefore, a modulating signal of 3 kHz simply means that the lower sideband is 3 kHz higher while the upper sideband is 3 kHz lower.

Spacing = 3 kHz + 3 kHz = 6 kHz.

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The rate of power input for this refrigerator is 3.33 kW.

A refrigerator with a COP (Coefficient of Performance) of 3.0 is designed to remove heat from the refrigerated space efficiently. The COP is the ratio of the amount of heat removed from the refrigerated space to the work (power input) done by the refrigerator.

In this case, the heat removal rate is given as 10 kW. To determine the rate of power input, we can use the following formula:

COP = (Heat removal rate) / (Power input)

Rearranging the formula to solve for the power input:

Power input = (Heat removal rate) / COP

By substituting the given values:

Power input = (10 kW) / (3.0)

Power input = 3.33 kW (approx.)

So, the rate of power input for this refrigerator is approximately 3.33 kW. This means that for every 3.33 kW of electrical power supplied to the refrigerator, it is able to remove 10 kW of heat from the refrigerated space. A higher COP indicates a more energy-efficient refrigerator.

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A project that requires using a pleater, a ruffling foot, or a gathering foot is the creation of a dress.

A pleater, a ruffling foot, and a gathering foot are all accessories for sewing machines or machines themselves that help fashion designers to give the fabric a different shape or texture, and therefore create unique pieces.

All of the tools can be used in the creation of a dress, for example, a pleater can be used in the top section of the dress to give it a nice texture and make it different from the skirt. In the same way, others such as the ruffling foot or the gathering foot can be used in the sleeves of the dress.

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The answer is TRUE we choose between ,We usually choose a mini-batch size greater than 1 and less than mm

Why do we choose the batch gradient between 1 and mm?

Mini batch in batch gradient:

In a variant of the gradient descent algorithm known as mini-batch gradient descent, the training dataset is divided into smaller batches that are then used to compute model error and update model coefficients. The variance of the gradient can be further reduced by implementations Mini-batch sizes are frequently determined as powers of 2, such as 16, 32, 64, 128, 256, etc. Make sure the minibatch fits in the CPU/GPU when selecting a suitable size for gradient descent. In general, selecting 32 is wise, summing the gradient over the mini-batch.

Hence to conclude the mini-batch size should be between 1 and less than 1 mm

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When completing a VFR flight at a controlled airport, it is important to close the flight plan with the appropriate authorities. The first step is to contact the appropriate air traffic control facility and advise them that you have completed your flight and would like to close your VFR flight plan. This can be done either through radio communication or by phone.

If you are communicating via radio, the controller will ask you for your aircraft identification, and then confirm that your flight plan has been closed. They may also ask for additional information, such as your current position or altitude. Once this information is provided, the controller will confirm that your VFR flight plan has been closed, and you can proceed with landing at the airport.

If you are unable to communicate via radio, you can also close your VFR flight plan by calling the appropriate facility via phone. You will need to provide your aircraft identification, as well as your current location and estimated time of arrival at the airport. The controller will then confirm that your VFR flight plan has been closed.

Overall, it is important to ensure that your VFR flight plan is properly closed at the end of your flight, in order to ensure safety and to avoid any confusion or miscommunication with air traffic control.

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