A n+350-KVA 2300+n - 230+n; volt, 60-hz transformer has percent core loss , resistance and percent leakage reactance of m+0.56 ,m+ 1.33 and m+5.57 respectively. For 100 increments of power-factor angle, tabulate and plot percent regulation, and efficiency. Power factor for operation between 0.5 lagging and 0.5 leading. Use Matlab
n = 41 m = 0.01*41 = 0.41

The weight of the culture will increase approximately 0.859 grams during the first 8 hours of growth.

To find the weight increase during the first 8 hours of growth, we can integrate the rate of growth function W'(t) over the interval [0, 8].

Given that W'(t) = \(0.3e^0.2\)grams per hour, the weight increase during the first 8 hours is:

\(∫[0, 8] W'(t) dt = ∫[0, 8] 0.3e^0.2 dt\)

Integrating this function, we have:

\(∫[0, 8] 0.3e^0.2 dt = 0.3∫[0, 8] e^0.2 dt\)

Integrating \(e^0.2\) with respect to t gives:

\(0.3 * (1/0.2) * e^0.2 ∣[0, 8] = 0.3 * (5 * e^0.2 - 1)\) ≈ 0.859 grams

Therefore, the weight of the culture will increase approximately 0.859 grams during the first 8 hours of growth.

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Answer:

He can take the job at the fast food restaurant to make money in order to pursue his career in robotics it doesnt mean he cant pursue it just he needs to make money for it first.

Answer:

2 1/3 A

Explanation:

power in = power out

V (14) =  6V a  

    14 = 6a

      a = 14/6 =

Answer:

fan

Explanation:

The use of a parallel spreader and roller is critical to ensure that the hot-mix asphalt is evenly distributed and compacted, providing a smooth and durable surface for vehicles to travel on.

Process Model of Asphalt Compaction OperationThe process model of asphalt compaction operation consists of the following steps:Step 1: PreparationThe first step is preparation, where the asphalt mix is prepared, leveled, and paved. The spreader is used to evenly distribute the asphalt mix across the entire surface of the roadway or parking lot.Step 2: Spreading and RepositioningThe second step is spreading and repositioning. The spreader must reposition to make a new pass parallel to the just completed pass. This step is repeated until the entire surface is covered with hot-mix asphalt.Step 3: CompactionThe third step is compaction. After 5 spread cycles, the spread section is released to the breakdown roller for compaction of the hot-mix asphalt. The roller is used to apply pressure and vibration to the asphalt mix to remove any air pockets and ensure that the asphalt is tightly compacted.Step 4: Final RollingThe final step is final rolling, where the finish roller is used to smooth out the surface of the asphalt and provide a uniform texture. This step ensures that the asphalt is evenly distributed and compacted, providing a smooth and durable surface for vehicles to travel on.In conclusion, the process model of asphalt compaction operation involves preparation, spreading and repositioning, compaction, and final rolling.

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Answer:

currently states that a person is qualified to drive a commercial motor vehicle if he/she “can read and speak the English language sufficiently to converse with the general public, to understand highway traffic signs and signals

So I think B

Since Sarah is developing a black-and-white photograph. The ratio that she should mix the fixer solution is option B. 1-2.

The kind of project you're shooting will determine the appropriate aspect ratio to utilize. As a starting point, we advise utilizing 16:9 for films as well as 4:3 for images.

There is no way to go wrong with either of them because this is a good common standard.

One do advise that a person can experiment with various aspect ratios as you acquire experience and wish to try more artistic photos. This can give your content a completely new perspective.

Therefore, Since Sarah is developing a black-and-white photograph. The ratio that she should mix the fixer solution is option B. 1-2.

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Answer:

first of all I need the choices you have not given any choices to choose

In python 3.8

nums = input("Please enter a list of numbers: ").split()

new_nums = [x for x in nums if 0 < float(x) < 100]

print("The numbers between 0 and 100 are: " + " ".join(new_nums))

When you said numbers between 0 and 100, I didn't know if that was inclusive or exclusive so I made it exclusive. I hope this helps!

Answer:

± 0.003 ft

Explanation:

Since our distance is 10,000 ft and we need to use a full tape measure of 100 ft. We find that 10,000 = 100 × 100.

Let L' = our distance and L = our tape measure

So, L' = 100L

Now by error determination ΔL' = 100ΔL

Now ΔL' = ± 0.30 ft

ΔL = ΔL'/100

= ± 0.30 ft/100

= ± 0.003 ft

So, the maxim error per tape is ± 0.003 ft

The response to the question is that the binary representation of a decimal number 157 is 10011101.

Binary 1111 is 10001010111. In a binary number system, we only need the digits 0 and 1 to represent a numbering, as opposed to the decimal number, which uses the numerals 0 to 9. (bits).

Binary = 2 is 10. In a binary number, we only need the digits 0 and 1 to represent a numbering, as opposed to the decimal system, which uses the digits 0 to 9. (bits). To symbolize 2 in binary, we have utilized 2 bits.

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Substances that degrade the metals that make up storage tanks or equipment are called corrosive agents.

Corrosive agents refer to chemicals or environmental factors that cause the gradual deterioration or destruction of metals through oxidation or other chemical reactions. When these substances come into contact with metals, they can initiate a process known as corrosion, which leads to the breakdown and weakening of the metal structure over time. Corrosion can result in leaks, structural failure, and contamination of the stored materials, posing significant safety and environmental risks. Preventive measures such as selecting corrosion-resistant materials, applying protective coatings, and implementing regular maintenance and inspection procedures are essential to mitigate the detrimental effects of corrosive agents on storage tanks and equipment.

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If the capacitor is initially uncharged, when the circuit is connected, the capacitor will begin to charge up, which will cause a current to flow in the circuit.

Initially, the current will be high, but it will gradually decrease as the capacitor charges up. The light bulb will turn on immediately after the circuit is connected, but it may flicker or dim as the capacitor charges up and the current decreases.

Once the capacitor is fully charged, the current in the circuit will be zero, and the light bulb will turn off.

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If your truck has a  starter button , you must first turn the engine key to the ‘on’ position before engaging it.

An ignition switch, starter switch, or start switch is a switch in a motor vehicle's control system that activates the vehicle's primary electrical systems, including "accessories."

The ignition switch is a critical component of an automobile. It starts and stops the car's engine, as well as the electrical in-car devices. It also powers the starting motor of the automobile. The ignition switch not only turns on and off the engine, but it also powers the lights and radio.

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Full Question:

If your truck has a(n) _____, you must first turn the engine key to the 'on' position before engaging it. *

10 points

A. starter button

B. engine brake

C. clutch button

D. cruise control

Answer:

DNA profiling

Explanation:

took the test

Answer:

  see attached

Explanation:

As you know, a full adder produces the binary value in (carry, output) that is the the number of true input bits among the (carry in, A, B) inputs.

The annotated diagram attached shows the bit values for a 4-bit full adder/subtractor.

__

Additional comment

If the numbers are considered "signed", then the top diagram will generate an "overflow" based on the difference between the carry C4 and the output O4.

Answer:

Explanation:

1. Inspect regularly

Regularly inspect your tools to make sure that they are in good condition.

2. Wear gloves

Always wear appropriate personal protective equipment.

3. Carry with care

Never carry tools up a ladder.

If you need to take tools up to a height use a bag or hoist them up in a bucket.

4. Don't pocket sharp objects

Never carry sharp or pointed tools in your pocket.

Instead, carry them in a toolbox.

5. Be aware of your surroundings

Always be aware of the people around you when using tools.

6. Use the right tools

Always use the right tools for the job.

Never use a tool for a different purpose than it was intended.

You risk damaging the tools and injuring yourself.

7. Follow instructions

Only operate tools according to manufacturers' instructions.

8. Clean and return

After using a tool, clean it and return it to it's proper storage place.

9. Oily hands are dangerous

Don't work with greasy or oily hands.

10. Protect your eyes

Always wear eye protection.

Answer:

The answers are in the explanation. The pH is 5.91

Explanation:

The CH3NH2 reacts with HCl as follows:

CH3NH2 + HCl → CH3NH3⁺ + Cl⁻

When 200mL of HCl are added, the moles of CH3NH2 and HCl are reacting completely producing CH3NH3+ and Cl-. That means the species present are:

no H+. All reacted

yes H2O. Because the water is present in the solutions of HCl and CH3NH2

yes Cl-. Is a product of the reaction

Yes CH3NH2. Is consumed in the reaction but comes from the equilibrium of CH3NH3+

yes CH3NH3+. Is the other product of the reaction. MAJOR SPECIES

When 300.00mL of HCl are added, 100mL are in excess:

yes H+. Is in excess: H+ + Cl- = HCl in water. MAJOR SPECIES. Determine the pH of the solution.

yes H2O. Is present because the reactants are diluted.  

yes Cl-. Is a product of reaction and comes from HCl.

Yes CH3NH2. The reactant is over but comes from the equilibrium of CH3NH3+

yes no CH3NH3+. Yes. Is a product and remains despite HCl is in excess.

To find the pH:

At equivalence point the ion that determines pH is CH3NH3+. Its concentration is:

0.100L * (0.200mol/L) = 0.0200 moles / 0.300L = 0.0667M CH3NH3+

The equilibrium of CH3NH3+ is:

Ka = Kw/kb = 1x10-14/4.4x10-4 = 2.273x10-11 = [H+] [CH3NH2] / [CH3NH3+]

As both [H+] [CH3NH2] comes from the same equilibrium:

[H+] =  [CH3NH2] = X

2.273x10-11 = [X] [X] / [0.0667M]

1.5159x10-12 = X²

X = 1.23x10-6M = [H+]

As pH = -log [H+]

pH = 5.91

The pH at the equivalent point for this titration is "5.91".

\(CH_3NH_2 = 0.200\ M\\\\ \text{volume} = 100.0\ mL = 0.100\ L\\\\HCl = 0.100\ M\\\\\)

We must now quantify the pH well at the equivalence point.

We know that even at the point of equivalence, moles of acid and moles of the base are equivalent. As such, first, we must calculate the number of moles of the given base.

Calculating the Moles in \(CH_3NH_2 = 0.200\ M \times 0.100\ L = 0.0200\ moles\)

Calculating the Moles in \(HCl = 0.0200 \ moles\)

Calculating the volume of \(HCl\):

\(\to \text{Molarity} = \frac{ \text{moles}}{\text{volume \ (L)}} \\\\\to \text{Volume} = \frac{\text{moles}}{\text{molarity}}\\\\\)

                \(= \frac{0.0200 \ moles}{ 0.100\ M}\\\\= 0.200 \ L\\\\= 200 \ mL\\\\\)

Calculating the reaction among the acid and base:

\(CH_3NH_2 + HCl \longrightarrow CH_3NH_3^{+} + Cl^-\)

\(0.0200 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 0.0200 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 0.0200\)

Therefore the conjugate acid of the bases exists at the standard solution.

Then we must calculate the new molar mass of \(CH_3NH_3^+\).

Total volume\(= 100 + 200 = 300\ mL = 0.300\ L\)

\([CH_3NH_3^+] = \frac{0.0200\ mole}{ 0.300\ L}= 0.0667\ M\)

Using the ICE table

\(CH_3NH_3^+ + H_2O \longrightarrow CH_3NH_2 + H_3O^+\)

\(I \ \ \ \ \ \ \ \ \ \ 0.0667 \ \ \ \ \ \ \ \ \ 0\ \ \ \ \ \ \ \ \ 0\\\\C\ \ \ \ \ \ \ \ -x\ \ \ \ \ \ \ \ +x \ \ \ \ \ \ \ \ +x\\\\E \ \ \ \ \ \ \ \ \ \ \ \ 0.0667-x \ \ \ \ \ \ \ \ \ \ \ \ +x \ \ \ \ \ \ \ \ \ \ \ \+x\\\\\to Ka = \frac{[CH_3NH_2] [H_3O^+] }{[CH_3NH_3^+]}\)

Calculating \(K_a\) from \(K_b\)

\(\to K_a \times K_b = 1\times 10^{-14}\\\\\to K_a = \frac{1\times 10^{-14}}{4.4\times 10^{-4}} = 2.27\times 10^{-11}\\\\\)

                           \(= 2.27\times 10^{-11} \\\\= x\times \frac{x}{(0.0667-x)}\)

The x in the 0.0667-x can be ignored since the Ka value is just too small and it also does not follow the five percent criteria.

\(\to 2.27 \times 10^{-11} \times 0.0667 = x_2\\\\\to x_2 = 1.515\times 10^{-12}\\\\\to x = 1.23\times 10^{-6}\ M\\\\\to [H_3O^+] = x = 1.23\times 10^{-6}\ M\\\\\)

We have the formula to calculate pH.

\(\to pH = - \log [H_3O^+] = - \log 1.23\times 10^{-6}\ M= 5.91\)

The pH at the equivalent point for this titration is "5.91".

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Answer:

Wood is heavy

Explanation:

The air velocity is approximately 6.2 m/s. A Pitot-static probe is a device that is used to measure the velocity of fluid, in this case, air.

The probe consists of two tubes, a Pitot tube and a static tube. The Pitot tube is positioned in the airflow, and it measures the total pressure of the fluid, which includes the static pressure and the dynamic pressure. The static tube, on the other hand, is positioned perpendicular to the airflow and measures only the static pressure.

In this particular scenario, the Pitot tube is connected to a water manometer, which is a device that measures the difference in fluid levels between the two arms of a U-shaped tube. The difference in fluid levels is proportional to the difference in pressure between the two points being measured.

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The OR function implemented using contacts requires contacts connected in series.

When implementing the OR function using contacts, the contacts need to be connected in series.

In a series connection, the contacts are arranged in such a way that the output is activated or energized when any of the contacts are closed or activated.

In a series connection, the current flows through each contact sequentially. If any of the contacts in the series are closed, the current can pass through and activate the output. This means that only one of the contacts needs to be closed for the output to be activated.

If all the contacts in the series are open or not closed, the current cannot flow through, and the output remains inactive. It is only when any one of the contacts in the series is closed that the output is activated.

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Answer:

When two fair dice are rolled, 6×6=36 observations are obtained.

P(X=2)=P(1,1)=

36

1

​

P(X=3)=P(1,2)+P(2,1)=

36

2

​

=

18

1

​

P(X=4)=P(1,3)+P(2,2)+P(3,1)=

36

3

​

=

12

1

​

P(X=5)=P(1,4)+P(2,3)+P(3,2)+P(4,1)=

36

4

​

=

9

1

​

P(X=6)=P(1,5)+P(2,4)+P(3,3)+P(4,2)+P(5,1)=

36

5

​

P(X=7)=P(1,6)+P(2,5)+P(3,4)+P(4,3)+P(5,2)+P(6,1)=

36

6

​

=

6

1

​

P(X=8)=P(2,6)+P(3,5)+P(4,4)+P(5,3)+P(6,2)=

36

5

​

P(X=9)=P(3,6)+P(4,5)+P(5,4)+P(6,3)=

36

4

​

=

9

1

​

P(X=10)=P(4,6)+P(5,5)+P(6,4)=

36

3

​

=

12

1

​

P(X=11)=P(5,6)+P(6,5)=

36

2

​

=

18

1

​

P(X=12)=P(6,6)=

36

1

​

Therefore, the required probability distribution is as follows.

Then, E(X)=∑X

i

​

⋅P(X

i

​

)

=2×

36

1

​

+3×

18

1

​

+4×

12

1

​

+5×

9

1

​

+6×

36

5

​

+7×

6

1

​

+8×

36

5

​

+9×

9

1

​

+10×

12

1

​

+11×

18

1

​

+12×

36

1

​

=

18

1

​

+

6

1

​

+

3

1

​

+

9

5

​

+

6

5

​

+

6

7

​

+

9

10

​

+1+

6

5

​

+

18

11

​

+

3

1

​

=7

E(X

2

)=∑X

i

2

​

⋅P(X

i

​

)

=4×

36

1

​

+9×

18

1

​

+16×

12

1

​

+25×

9

1

​

+36×

36

5

​

+49×

6

1

​

+64×

36

5

​

+81×

9

1

​

+100×

12

1

​

+121×

18

1

​

+144×

36

1

​

=

9

1

​

+

2

1

​

+

3

4

​

+

9

25

​

+5+

6

49

​

+

9

80

​

+9+

3

25

​

+

18

121

​

+4

=

18

987

​

=

6

329

​

=54.833

Then, Var(X)=E(X

2

)−[E(X)]

2

=54.833−(7)

2

=54.833−49

=5.833

∴ Standard deviation =

Var(X)

​

=

5.833

​

=2.415

The kinematics we can find the time to cross the Atlantic is 67 days.

The kinematics studies the movement of the body making relationships between the position, the speed and the acceleration of the same.

The average velocity is defined as the relation between the displacement between the time of the interval

           v = \(\frac{\Delta x}{t}\)

           Δt = \(\frac{\Delta x}{v}\)

Where v is the velocity, x the displacement t time

In this case they indicate the displacement is Δx = 3000 mi and the speed is v = 50 m / min

The system of units allow data to be exchanged with precision and safety, for this there is currently the international system of measurements (SI), where the unit of length is the meter and the unit of time is the second, let's reduce the magnitudes given to these units.

           Δx = 3000 mi (  ) = 4.828 10⁶ m

            v = 50 m / min ( ) = 0.833 m / s

Now we can calculate the time to cross the Atlantic

            Δt = 4.828 10⁶ / 0.833

            Δt = 5.796 10⁶ s

Let's reduce to days

            Δt = 5.796 10⁶ s (  ) (  )

            Δt = 67 days

In conclusion using kinematics we can find the result of the time to cross the Atlantic is 67 days.

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9514 1404 393

Answer:

  13/80

Explanation:

The product is ...

  (1 3/10)×(1/8) = (13/10)×(1/8) = (13×1)/(10×8) = 13/80

Explanation:

a stationer sell 8 pencil for the cost price of 10 ,find his gain percent

Answer: Photo lines

Explanation: made more sense

Answer:

The intrinsic Fermi energy is slightly below the center of the bandgap ( option A )

Explanation:

Given that the effective mass of holes is > than the effective mass of electrons in a semiconductor the Intrinsic Fermi energy is slightly below the center of the bandgap.

Intrinsic Fermi energy is experienced/present in the occupation of energy levels in the valence or conduction bands of an intrinsic conductor

Answer:

a. the rate of heat loss from the electronic device to the surrounding air

A total of 10 rectangular aluminum fins (k = 203 W/m·K) are placed on the outside flat surface of an electronic device. Each fin is 100 mm wide, 20 mm high and

4 mm thick. The fins are located parallel to each other at a center-to-center distance of 8 mm. The temperature at the outside surface of the electronic device is 72°C. The air is at 20°C, and the heat transfer coefficient is 80 W/m2·K. Determine (a) the rate of heat loss from the electronic device to the surrounding air and (b) the fin effectiveness.

Explanation:

Sorry if wrong, Hope I helped

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