___ is the process of discharging water and undesirable accumulated material from a boiler.

Answer:

i need point 344

Explanation:

Answer:

105°touch sensce what I could wathskb

Stress relief, increased ductility, increased toughness, and the production of a specific microstructure can all occur during an annealing heat treatment.Therefore, option e. "All of the above" is the correct answer.

During an annealing heat treatment, all of the options mentioned may occur.

a. Stress may be relieved as the material is heated and allowed to slowly cool, reducing internal stresses.

b. Ductility may increase as the heat treatment promotes the rearrangement of atoms, leading to improved plasticity.

c. Toughness may increase as the annealing process refines the microstructure, reducing defects and increasing resistance to fracture.

d. A specific microstructure may be produced through controlled heating and cooling, resulting in desired properties such as improved grain size and distribution.

Therefore, option e. "All of the above" is the correct answer.

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Answer:

Explanation:

From the information given:

original diameter \(d_o\) = 10 mm

final diameter \(d_f =\) 7.5 mm

Cold work tensile strength of brass = 380 MPa

Recall that;

\(\text {The percentage CW }= \dfrac{\pi (\dfrac{d_o}{2})^2 - \pi(\dfrac{d_f}{2})^2 }{\pi(\dfrac{d_o}{2})^2} \times 100\)

\(\implies \dfrac{\pi (\dfrac{10}{2})^2 - \pi(\dfrac{7.5}{2})^2 }{\pi(\dfrac{10}{2})^2} \times 100\)

\(\implies43.87\% \ CW\)

→ At 43.87% CW, Brass has a tensile strength of around 550 MPa, which is greater than 380 MPa.

→ At 43.87% CW, the ductility is less than 5% EL, As a result, the conditions aren't met.

To achieve 15% EL, 28% CW is allowed at most

i.e

The lower bound cold work = 15%

The upper cold work = 28%

The average = \(\dfrac{15+28}{2}\) = 21.5 CW

Now, after the first drawing, let the final diameter be \(d_o^'\); Then:

\(4.5\% \ CW = \dfrac{\pi (\dfrac{d_o^'}{2})^2 - (\dfrac{7.5}{2})^2}{\pi (\dfrac{d_o^'}{2})^2}\times 100\)

By solving:

\(d_o^'} = 8.46 mm\)

To meet all of the criteria raised by the question, we must first draw a wire with a diameter of 8.46 mm and then 21.5 percent CW on it.

Cu-10Ni. Cu-Ni alloys, which are composed of copper and nickel with or without other elements, can or may not experience coring.

The production of a protective oxide film on the metal surface is what gives Cu-Ni alloys their excellent corrosion resistance in sea water. The alloys' initial contact with seawater is altered as the coating forms naturally and fast.

The two primary copper-nickel alloys are 70/30, which contains 70% copper and 30% nickel, and 90/10, which has 90% copper and 10% nickel. Although the 90/10 will work well in the majority of applications and is generally more extensively used since it is less expensive, the 70/30 is stronger and has higher seawater flow resistance.

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The following is a load false statement: building codes have tables that provide information regarding minimum required live loads.

A "load" or "fother" of metallic lead was, in the broadest sense, about or precisely equivalent to one long ton of 2240 lbs (1016 kg), or one tonne. There have been reports of others weighing between 991 kg and 2520 pounds (1143 kg).

A load is anything we're attempting to move, lift, or just have external force operate on. The input force we use to move or lift a load is referred to as an effort.

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(a) The local acceleration term in the equation of motion (LA) for the x-direction is given by -2Hσ²e^(kz)cos(kx - σt).

(b) The advective acceleration term in the equation of motion (AA) for the x-direction is zero.

The given fluid velocity components in Cartesian coordinates are u = 2Hσe^(kz)cos(kx - σt) and v = 0, w = 2Hσe^(kz)sin(kx - σt), where x represents the horizontal coordinate, z represents the vertical coordinate, and t represents time.

In order to find the expressions for the local acceleration term (LA) and the advective acceleration term (AA) in the equation of motion for the x-direction, we differentiate the x-component of velocity twice with respect to time.

In summary, the local acceleration term (LA) in the x-direction is given by -2Hσ²e^(kz)cos(kx - σt), while the advective acceleration term (AA) in the x-direction is zero.

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Solution :

Given :

The power of the air‐conditioning (AC) unit is , W = 0.434 kW

The coefficient of performance or the COP of the air‐conditioning (AC) unit is given by  = 6.22

Therefore he heat removed is given by , \($Q_H = 6.22 \times 0.434$\)

                                                                     \($Q_H = 2.7 \ kW $\)

Now if the electricity is valued at  0.10 dollar per kW hour, then the operating cost of the air conditioning unit in 24 hours is given by = 0.10 x 2.7 x 24

                                                                                            = 6.48

Therefore the operating cost = $ 6.48 for 24 hours.

The maximum pressure would be 1720 * 2 = 3440 pa (gage).

To determine the length of the clear plastic piping needed for your piezometer, you need to consider the maximum expected pressure and the normal operating pressure of the pipe. If the normal operating pressure is 1720 pa (gage), and you expect the maximum pressure to be double that value, then the maximum pressure would be 1720 * 2 = 3440 pa (gage). The length of the piping will depend on the pressure rating of the plastic piping, which should be specified by the manufacturer. If the plastic piping is rated for 3440 pa (gage), you would need a piece that is long enough to reach the desired measurement location. If the piping is not rated for 3440 pa (gage), you would need to use a higher-rated piping or add reinforcement to the piping to ensure it can handle the maximum expected pressure.

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It is okay to lift one end of the vehicle B) As long as the wheels have been chocked.

This refers to the processes that are undertaken in order to undertake a task safely, both for the person executing the task and others around.

Hence, we can see that It is okay to lift one end of the vehicle B) As long as the wheels have been chocked

This is because it would enable the vehicle to be safely positioned so the wheels would not roll off and cause an accident.

This safety procedure allows a person to raise one end of a vehicle, if the wheels have been chocked, to keep them in place.

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Answer:

  see the attachment

Explanation:

The circuit shown uses Nand and Nor gates to produce the desired logic. The input bits are numbered 0 to 2, right to left.

The logic is ...

  out = ((b2·b0)' + b1)'

  out = b2·b1'·b0

Answer: 5   6    7

Explanation:

you can run this in python and get this result

The output for the given program is: 5   6    7

This refers to the high-level language that was created and is used for data structures due to its OOP (object-oriented programming).

Hence, this python code asks for an array of numbers in the range of 3 and when that is found, it should make a display of the number and increment it.

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(a) The time constant τ and the system gain k. The time regular may be described because the time it takes for the step reaction to upward thrust as much as sixty three% or 0. sixty-three of its very last value. We talk to this as t = 1/a.

Time Constant is the “how fast” variable. It describes the rate with which the measured Process Variable (PV) responds to modifications withinside the Controller Output (CO). More especially it represents the time wanted for the PV to attain 63.2% of its overall and very last change.

First-order manipulating device is described as a sort of manipulate device whose input-output relationship (additionally referred to as a switch function) is a first-order differential equation. A first-order differential equation carries the first-order spinoff, however no spinoff better than the primary order.

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Engineer's approvall makes it appropriate to alter from the drawing

Engineering drawing is a document that contain the design of an engineer represented in a sketch.

deviating fron the drawing is same as deviating from the design. it is therefore necessary to call the engineers attention before altering the drawing.

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Answer:

The main reason for bridges collapses is: earthquakes (natural disasters) and construction incidents. Whenever a natural disaster occur, it makes the bridge collapse. An example is hurricanes. Hurricanes come with a great wind and that might lead to the bridge collapsing. Construction incidents means the bridge falls during construction. Those who are employed in health, safety and environmental management need to make sure that during the construction, they have examined the material and made sure it is strong. Working with economists, they should seek better understanding of the methods for minimizing the costs during the life of the bridge. In case for natural disasters, like flooding, they should make the bridge in a lever where the water won't reach the bridge. And they should have a limit for weight in the bridges because that is another reason it collapses, because the bridge does not support extra weight.

Explanation:

hope this helps

The above-stated example appears to meet all the criteria for being objective. An objective is a goal, target, or aim. An objective provides you with an understanding of what you must accomplish, measure, or do to accomplish a task.

It enables you to concentrate your energies and abilities and chart a course of action to attain the desired result or outcome. An objective is measurable and achievable within a given time frame.The above-stated example of a multiple-choice test appears to meet all the criteria for being an objective. It is applicable to almost any cognitive learning situation. It comprises a clear and concise statement of the desired result or outcome. It is measurable since it defines the precise outcome required, which is to achieve a score of at least nine out of ten correct. The objective is achievable within a given time frame since the test-taker has to complete the test and achieve the stated score.

It is applicable to almost any cognitive learning situation. It comprises a clear and concise statement of the desired result or outcome. It is measurable since it defines the precise outcome required, which is to achieve a score of at least nine out of ten correct. The objective is achievable within a given time frame since the test-taker has to complete the test and achieve the stated score.The example demonstrates a precise and specific outcome that can be measured, making it a well-defined objective. The objective does not include any value judgments or subjective opinions.

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Answer:

myjmjkkyjm

Explanation:

Tyjjhmjtymtyyjmjymjy

The best practice that Raven should follow is to use DC2 or DC3 as the Domain Naming Master of the following is a best practice that Raven should follow. The correct option is A.

The management of the addition or deletion of domains from the forest is the responsibility of the Domain Naming Master. For redundancy and fault tolerance, it is advised to split the FSMO roles among several domain controllers.

Since DC1 already has a copy of the global catalog, it is advantageous to choose a different domain controller (DC2 or DC3) as the Domain Naming Master to disperse the workload and guarantee high availability. This ensures that the forest's operations may continue even if one domain controller goes offline and prevents the creation of a single point of failure.

Thus, the ideal selection is option A.

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Answer:

Here's the MATLAB code to create the table:

% Create a vector of power values from 100 W to 10000 W

P = [100:100:1000, 2000:1000:10000];

% Convert power values from watts to horsepower

HP = P ./ 745.7;

% Create a table to display the results

T = table(P', HP', 'VariableNames', {'Power_W', 'Power_HP'})

This will create a table T with two columns: Power_W for power values in watts and Power_HP for power values in horsepower. The table will show the conversion of power values from 100 W to 10000 W in increments of 100 W up to 1000 W and increments of 1000 W all the way up to 10000 W.

Explanation:

The volume of cuboid in cubic feet which must be ordered is equal to 5,600 cubic feet.

Given the following data:

Length of helicopter landing pad = 40 ft.

Width of helicopter landing pad = 70 ft.

Height or thickness of helicopter landing pad = 2 ft.

Based on the information provided, we can reasonably infer and logically deduce that the shape of this helicopter landing pad is a cuboid.

Mathematically, the volume of a cuboid can be calculated by using this following formula:

Volume = l × w × h

Where:

Substituting the given parameters into the formula, we have;

Volume = 40 × 70 × 2

Volume = 5,600 cubic feet.

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Answer:

The best recommendation to prevent emissions systems failure is to regularly maintain the fuel and emissions system.

Explanation:

Answer:

Magnitude of the velocity = 16.82 m/s

Angular direction, θ = 52.41°

Explanation:

As given ,

mass of bullet, m₁= 50g = 0.05 kg

speed of bullet , u₁ = 600 m/s

mass of the block , m₂ = 4 kg

speed of the block before collision , u₂ = 12 m/s

direction , θ = 30°

Now,

Assume that the combined velocity of bullet and block after collision = v

and the direction = θ

Now, from the conservation of momentum in x - direction :

m₁ u₁ + m₂ u₂ = ( m₁ + m₂ ) vₓ

where v = final velocity after collision

u₁ = initial velocity of bullet before collision = 0

m₁ = mass of the bullet before collision = 0.05 kg

u₂  = velocity of block before collision = 12 cos(30° )

m₂ = mass of block before collision

m₁ + m₂ = combined mass of bullet and block after collision = 0.05 + 4

∴ we get

0.05 (0) + 4(12 cos(30° ) ) = ( 0.05 + 4 ) vₓ

⇒ 0 + 4(6√3) = 4.05 vₓ

⇒24√3 = 4.05 vₓ

⇒vₓ = 10.26 m/s

Now, from the conservation of momentum in y - direction :

m₁ u₁ + m₂ u₂ = ( m₁ + m₂ ) \(v_{y}\)

where v = final velocity after collision

u₁= initial velocity of bullet before collision = 600

m₁ = mass of the bullet before collision = 0.05 kg

u₂  = velocity of block before collision = 12 sin(30° )

m₂= mass of block before collision

m₁+ m₂= combined mass of bullet and block after collision = 0.05 + 4

∴ we get

0.05 (600) + 4(12 sin(30° ) ) = ( 0.05 + 4 ) \(v_{y}\)

⇒ 30 + 4(6) = 4.05 \(v_{y}\)

⇒30 +24 = 4.05 \(v_{y}\)

⇒54 = 4.05 \(v_{y}\)

⇒\(v_{y}\) = 13.33 m/s

Now, the magnitude of the velocity = √vₓ² + \(v_{y}\)² = √(10.26)² + (13.33)²

                                                           = √105.26 + 177.68

                                                           = √282.95 = 16.82

The angular direction, θ =  \(tan^{-1}\)(\(\frac{v_{y} }{v_{x} }\)) =  \(tan^{-1}\)(\(\frac{13.33}{10.26}\)) = \(tan^{-1}\)(1.299) = 52.41°

A pediatrician would use an ophthalmoscope for viewing the interior of the eyes.

Ophthalmoscope is an instrument used by pediatricians and other physicians to examine the interior of the eye.

The ophthalmoscope, an important diagnostic tool in ophthalmology, enables doctors to view the retina, optic disc, macula, and other parts of the eye in detail.

The ophthalmoscope is designed to allow physicians to view the interior of the eye through the pupil. With the help of an ophthalmoscope, doctors can diagnose and monitor a variety of eye disorders, such as glaucoma, cataracts, and macular degeneration.

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A pediatrician is a doctor who specializes in treating babies, toddlers, and children up to the age of 18. Pediatricians are well-equipped to diagnose, treat, and illnesses. Because they deal with such young patients, pediatricians must have access to a variety of specialized medical instruments,

One such instrument is an ophthalmoscope. An ophthalmoscope is a handheld instrument that is used to view the interior of the eye. It allows doctors to examine the retina, optic disc, and other structures of the eye to identify any signs of damage or disease.
Pediatricians might use an ophthalmoscope to diagnose a variety of eye conditions in children. For example, they might use it to look for signs of strabismus (a misalignment of the eyes), cataracts (cloudy areas on the lens of the eye), or glaucoma (increased pressure in the eye that can damage the optic nerve)
In addition to an ophthalmoscope, they might also use other specialized instruments to examine different parts of the eye.

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A contractor has a job that should be completed in 100 days. At present, he has 80 men on the job and it is estimated that they will finish the work in 130 days. Of the 80 men, 50 are each paid ₱120.00 a day, 25 at ₱180.00 a day, and 5 at ₱250.00 a day. For each day beyond the original 100 days, a contractor has to pay ₱500.00.

liquidated damages.(a) How many more men should the contractor add so that he would complete the work on time?In the first case, we see that the contractor already has 80 men and they are working for 130 days to complete the job. So, we can use the following formula to determine the additional number of workers required to finish the work in 100 days.

b) If of the additional men, 2 are paid ₱180.00 a day, and the rest at ₱120.00 a day, would the contractor save money by employing more men and not paying the fine Let’s assume that the contractor adds 440 workers, of which 2 are paid ₱180.00 a day and the rest are paid ₱120.00 a day.

The total cost of the new workers is, therefore, ₱9600.00 + ₱4500.00 + ₱49800.00 = ₱63,900.00.The cost of liquidated damages would be calculated as follows:  $$LD = (130-100) \cdot 500 = ₱15,000.00$$.

Therefore, the contractor would save money if he employs more men and not pays the fine. The contractor’s savings would be:$$Savings = LD - Additional cost$$$$= 15000.00 - 63900.00 $$$$= -48900.00$$

Thus, we can see that the contractor would save ₱48,900.00 by employing more men and not paying the fine.

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Answer:

d. To Murrow, Hitler was a threat to all of civilization

Explanation:

For Murrow, Hitler's rise was a serious problem and a major threat to the entire civilization. For this reason, he believed that covering news about Hitler's advance and the battles of Nazi Germany was essential, even if the American population did not see Hitler as a threat and the European population, believed that these reprotations were only a way to denigrate the image of the continent to the world.

For Murrow reporting on Hitler's actions was as important as reporting on natural disasters.

Hi! To calculate the maximum output you would expect from a wind turbine with a blade diameter of 20 ft. in a 15-mph wind, we need to use the formula for the power generated by a wind turbine:

Power = 0.5 × Air Density × Swept Area × Coefficient of Performance × Wind Speed^3

Step 1: Convert wind speed from mph to m/s
15 mph ≈ 6.7056 m/s (1 mph ≈ 0.44704 m/s)

Step 2: Calculate the swept area of the turbine
Swept Area = π × (Blade Diameter / 2)^2 = π × (20 ft / 2)^2
Convert feet to meters: 20 ft ≈ 6.096 m
Swept Area ≈ 29.39 m^2

Step 3: Use standard air density
Air Density ≈ 1.225 kg/m^3

Step 4: Use the maximum value for the coefficient of performance (Cp) according to Betz's law
Coefficient of Performance (Cp) ≈ 0.59

Step 5: Plug in the values and solve for power
Power ≈ 0.5 × 1.225 × 29.39 × 0.59 × (6.7056)^3 ≈ 1,266.64 Watts

The maximum output you would expect from a wind turbine with a blade diameter of 20 ft. in a 15-mph wind is approximately 1,266.64 Watts.

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Answer:

woah

Explanation:

Answer:

a) the mass flow rate of the steam is  \(\mathbf{m_1 =6.92 \ kg/s}\)

b) the exit velocity of the steam  is \(\mathbf{V_2 = 562.7 \ m/s}\)

c) the exit area of the nozzle is  \(A_2\) = 0.0015435 m²

Explanation:

Given that:

A steam with 5 MPa and 400° C enters a nozzle steadily

So;

Inlet:

\(P_1 =\) 5 MPa

\(T_1\) = 400° C

Velocity V = 80 m/s

Exit:

\(P_2 =\) 2 MPa

\(T_2\) = 300° C

From the properties of steam tables  at \(P_1 =\) 5 MPa and \(T_1\) = 400° C we obtain the following properties for enthalpy h and the speed v

\(h_1 = 3196.7 \ kJ/kg \\ \\ v_1 = 0.057838 \ m^3/kg\)

From the properties of steam tables  at \(P_2 =\) 2 MPa and \(T_1\) = 300° C we obtain the following properties for enthalpy h and the speed v

\(h_2 = 3024.2 \ kJ/kg \\ \\ v_2= 0.12551 \ m^3/kg\)

Inlet Area of the nozzle = 50 cm²

Heat lost Q = 120 kJ/s

We are to determine the following:

a) the mass flow rate of the steam.

From the system in a steady flow state;

\(m_1=m_2=m_3\)

Thus

\(m_1 =\dfrac{V_1 \times A_1}{v_1}\)

\(m_1 =\dfrac{80 \ m/s \times 50 \times 10 ^{-4} \ m^2}{0.057838 \ m^3/kg}\)

\(m_1 =\dfrac{0.4 }{0.057838 }\)

\(\mathbf{m_1 =6.92 \ kg/s}\)

b) the exit velocity of the steam.

Using Energy Balance equation:

\(\Delta E _{system} = E_{in}-E_{out}\)

In a steady flow process;

\(\Delta E _{system} = 0\)

\(E_{in} = E_{out}\)

\(m(h_1 + \dfrac{V_1^2}{2})\) \(= Q_{out} + m (h_2 + \dfrac{V_2^2}{2})\)

\(- Q_{out} = m (h_2 - h_1 + \dfrac{V_2^2-V^2_1}{2})\)

\(- 120 kJ/s = 6.92 \ kg/s (3024.2 -3196.7 + \dfrac{V_2^2- 80 m/s^2}{2}) \times (\dfrac{1 \ kJ/kg}{1000 \ m^2/s^2})\)

\(- 120 kJ/s = 6.92 \ kg/s (-172.5 + \dfrac{V_2^2- 80 m/s^2}{2}) \times (\dfrac{1 \ kJ/kg}{1000 \ m^2/s^2})\)

\(- 120 kJ/s = (-1193.7 \ kg/s + 6.92\ kg/s ( \dfrac{V_2^2- 80 m/s^2}{2}) \times (\dfrac{1 \ kJ/kg}{1000 \ m^2/s^2})\)

\(V_2^2 = 316631.29 \ m/s\)

\(V_2 = \sqrt{316631.29 \ m/s\)

\(\mathbf{V_2 = 562.7 \ m/s}\)

c) the exit area of the nozzle.

The exit of the nozzle can be determined by using the expression:

\(m = \dfrac{V_2A_2}{v_2}\)

making \(A_2\) the subject of the formula ; we have:

\(A_2 = \dfrac{ m \times v_2}{V_2}\)

\(A_2 = \dfrac{ 6.92 \times 0.12551}{562.7}\)

\(A_2\) = 0.0015435 m²

Effective operation of roller chain and gear couplings requires proper alignment and lubrication.

Roller chain coupling are compact and flexible couplings. They are used for low to moderate speed/torque applications. For effective operation they need to be maintained by applying lubrication and aligning.

Gear couplings are used for high speed and torque applications. For effective performance they need to be lubricated frequently and proper alignment is needed.

Hence effective operation of roller chain and gear couplings  requires proper lubrication and alignment.

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Answer:

yes it is very hard you should find a reccomended doctor to aid in your situation. But in the meantime how about you give me that lil brainliest thingy :p