When welding a T-joint, why should the arc be directed more toward the bottom workpiece?

At 1.2mpa pressure and 50c

What is pressure?
By pressing a knife against some fruit, one can see a straightforward illustration of pressure. The surface won't be cut if you press the flat part of the knife against the fruit. The force is dispersed over a wide area (low pressure).

a)Mass flow rate of the refrigerant
Therefore h1= condenser inlet enthalpy =278.28KJ/Kg
saturation temperature at 1.2mpa is 46.29C
Therefore the temperature of the condenser

T2 = 46.29C - 5
T2 = 41.29C

Now,
d)power consumed by compressor W = 3.3KW
Q4 = QL + w = Q4
QL = mR(h1-h2)-W
= 0.0498 x (278.26 - 110.19)-3.3
=5.074KW
Hence refrigerator load is 5.74Kg

(COP)r = 238/53
(Cop) = 4.490

Therefore the above values are the (a) mass flow rate of the refrigerant, b) the refrigerant load, c) the cop, and d) the minimum power input to the compressor for the same refrigeration load.

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Optimism and open-mindedness can greatly contribute to the success of engineers in their jobs by fostering a positive and adaptable mindset.

Firstly, **optimism** enables engineers to approach challenges with a positive attitude and belief in their ability to find solutions. It helps them maintain motivation, resilience, and a proactive approach in the face of obstacles. Optimistic engineers are more likely to persevere through difficulties, think creatively, and explore multiple avenues to solve complex problems.

Secondly, being **open-minded** allows engineers to embrace new ideas, perspectives, and technologies. Open-minded engineers are willing to consider different approaches, listen to diverse viewpoints, and learn from others. This mindset promotes collaboration, encourages knowledge sharing, and facilitates continuous learning and growth. It also enables engineers to adapt to changing circumstances, embrace innovation, and discover novel solutions.

By combining optimism and open-mindedness, engineers can create an environment conducive to exploration, innovation, and effective problem solving. These qualities promote a positive work culture, enhance teamwork, and contribute to the successful execution of engineering projects.

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Para calcular la función vectorial r(t) con las condiciones dadas, podemos integrar la derivada r'(t) para obtener r(t). La derivada r'(t) se nos proporciona como 2i + 3tj + 5t^2k.

Integrando cada componente de r'(t), obtenemos:

∫2i dt = 2t + C1, donde C1 es una constante de integración para la componente en i.

∫3tj dt = (3/2)t^2 + C2, donde C2 es una constante de integración para la componente en j.

∫5t^2k dt = (5/3)t^3 + C3, donde C3 es una constante de integración para la componente en k.

Ahora, sustituyendo las condiciones iniciales r(0) = i - 2j + k en la función resultante de la integración, obtenemos:

r(t) = (2t + C1)i + ((3/2)t^2 + C2)j + ((5/3)t^3 + C3)k.

Para determinar las constantes de integración, podemos utilizar las condiciones iniciales r(0) = i - 2j + k. Sustituyendo t = 0 en la función r(t), obtenemos:

r(0) = (2(0) + C1)i + ((3/2)(0)^2 + C2)j + ((5/3)(0)^3 + C3)k

      = C1i + C2j + C3k.

Comparando esto con la condición inicial i - 2j + k, podemos deducir que C1 = 1, C2 = -2 y C3 = 1.

Por lo tanto, la función vectorial r(t) con las condiciones dadas es:

r(t) = (2t + 1)i + ((3/2)t^2 - 2)j + ((5/3)t^3 + 1)k.

Esta función representa una trayectoria en el espacio tridimensional definida por las condiciones iniciales y la derivada dada.

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Explanation:

1. Age of existing bridge: if bridge is too old and has crossed expected life span, then it is better to build new bridge.

2.Weight of traffic moving over bridge: If weight of traffic moving over bridge is more than the designed weight then new bridge has to be built.

3.Temperature: Temperature play a key role in developing thermal stress. If bridge is designed for withstanding certain temperature and during coarse of time the temperature has crossed the expected temperature, then new bridge has to be built.

To improve the acoustics in auditorium, a sound reflector with mass of 200 kg is suspended by a chain from the ceiling thus thet force (magnitude and direction) does the chain exert on it =1960 N.

Ths  0.33 regulation states that for each movement (pressure) in nature there's an identical and contrary response. If item A exerts a pressure on item B, item B additionally exerts an identical and contrary pressure on item A. In different words, forces end result from interactions.

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Answer:

Step 1: Define the Problem.  

Step 2: Do Background Research. .

Step 3: Specify Requirements. .

Step 4: Brainstorm, Evaluate and Choose Solution.  

Step 5: Develop and Prototype Solution.  

Step 6: Test Solution.

Step 7: Does Your Solution Meet the Requirements?  

Step 8: Communicate Results.

can u tell me the definition tho?

palled correctly as “though” which is an alternate form of “although”) at the end is informal usage. It's better placed before “she seems better today

Answer:

The equilibrium temperature is 109.7°C

The total entropy change for the process is 0.23 kJ/K

Explanation:

The parameters given are;

The initial temperature of aluminium, T₁ₐ = 140°C = 413.15 K

Mass, m₁, of aluminium block = 28 kg

The specific heat of aluminium, c₁, at 400 K = 0.949 kJ/(kg·K)

The initial temperature of iron, T₁ₙ = 60°C = 333.15 K

Mass, m₂, of iron block = 36 kg

The specific heat of iron, c₂, at room temperature = 0.45 kJ/(kg·K)

The heat lost by the aluminium = Heat gained by the iron

The heat lost by the aluminium = m₁ × c₁ × (T₁ₐ - Tₓ)

The heat lost by the aluminium = 28 × 0.949 × (413.15 - Tₓ)

The heat gained by the iron =  m₂ × c₂ × (Tₓ - T₁ₙ)

The heat gained by the iron =  36 × 0.45 × (Tₓ - 333.15)

Hence;

28 × 0.949 × (413.15 - Tₓ) = 36 × 0.45 × (Tₓ - 333.15)

26.572 × (413.15 - Tₓ) = 16.2 × (Tₓ - 333.15)

∴ (26.572 + 16.2) × Tₓ = 26.572 × 413.15 + 16.2 × 333.15

42.772·Tₓ = 16375.2518

Tₓ = 382.85 K = 109.7°C

The total entropy change of the process is given by the following relation;

\(\Delta S = \Delta S_{Fe} + \Delta S_{Al}\)

\(=m_{1}c_{1}ln\dfrac{T_{x}}{T_{1n}}+m_{2}c_{2}ln\dfrac{T_{x}}{T_{1a}}\)

\(=28 \times 0.949 \times ln\dfrac{382.85}{413.15}+36 \times 0.45 \times ln\dfrac{382.85}{333.15} = 0.23 \, \dfrac{kJ}{K}\)

The calculation of the second automobile's mileage has a logical flaw, but the mile of the previous car is accurate.

In communications, a symbol, paragraph, or phrase is replaced with a randomly chosen counterpart according to a fixed rule called a code. The word has frequently been misused and used to signify cipher, a technique for changing a message in order to hide its true content.

While a code theoretically has no established definition, clinicians usually use it to describe a cardiac tamponade that happens to a patient who has been admitted to the hospital or hospital and calls for the immediate presence of a team of healthcare experts and the beginning of resuscitative efforts.

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

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

Using the data provided:

Initial Pressure = P1 = 125kPa

Mass of Saturated Vapor Liquid = m = 5kg

Initial Mass of Liquid water = mf = 2kg

Initial Mass of Vapor = mg = 3kg

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

T₁ = 99.61°C

The specific volume is:

vf = 0.001043m³/kg

And the saturated volume is:

vg = 1.6941m³/kg

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

V1 = mfvf + mgvg

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

V1 = 5.084m³

In state 3 then the volume will be equal to:

V3 = 1.2V1

V3 = 1.2(5.084m³)

V3 = 6.1008m³

Then the specific volume will be equal to:

v3 = V₃/m

v3 = 6.1008m³/5kg

v3 = 1.2202m³/kg

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

T3 = 259.07°C

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

v₂ =V₂/m

v₂ = 5.084m³/5kg

v2 = 1.0168m³/kg

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

v2 > vg

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

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Answer:Falling or flying objects on a worksite can expose workers to relatively minor injuries, such as cuts and abrasions, as well as more serious injuries, such as concussions or blindness. Working beneath scaffolds or other areas where overhead work is being performed puts workers at risk from falling objects. Flying objects become a concern when workers are using power tools or performing tasks that involve pushing, pulling or prying.

Explanation:General

Always wear hard hats when work is being performed overhead or when other work conditions call for it.

Stack materials securely to prevent them from sliding, falling or collapsing.

Overhead work

Secure all tools and materials to prevent them from falling on people below.

Use toe boards or guardrails on scaffolds to prevent objects from falling. Alternately, use debris nets or catch platforms to grab falling objects.

Machine use

When working with machines or power tools that can produce flying particles, wear safety glasses, goggles or face shields.

Inspect tools prior to use, and be sure all guards are in place and in good working condition.

Allow only properly trained workers to use power-actuated tools.

Cranes/hoists

Whenever possible, avoid working under moving loads.

Erect barricades and post warning signs at hazardous work zones.

Inspect cranes and hoists prior to use to ensure all components are in good working order, including wire rope, lifting hooks and chains.

Never exceed the lifting capacity of cranes and hoists.

Compressed air

Reduce compressed air for cleaning to 30 psi, and always use proper personal protective equipment and guarding.

Never clean clothing with compressed air.

Positive correlations of handle steeper incline of bicycle is a. Light weight frame.

A positive relationship implies that as one variable increments, the other variable moreover increments. Within the setting of cycling, handle steepness can influence the rider's pose and consolation level, which in turn can impact components such as speed, continuance , and generally performance.

Hence, Components which will influence the relationship between handle steepness and cycling execution might incorporate the rider's wellness level, the landscape being ridden on, the sort and quality of the bike components, and other person inclinations or variables.

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Answer:

Explanation:

It appears that you are trying to solve a problem involving an insulated rigid tank containing saturated liquid water and water vapor. To determine the volume of the tank, you will need to know the mass of the liquid water and the mass of the water vapor. The mass of the liquid water can be calculated by multiplying the mass of the water and vapor mixture by the fraction of the mixture that is liquid water (1.4 kg * 0.25 = 0.35 kg). The mass of the water vapor can be calculated by subtracting the mass of the liquid water from the total mass of the mixture (1.4 kg - 0.35 kg = 1.05 kg).

To determine the final temperature of the tank, you will need to know the amount of heat added to the tank by the electric resistor and the specific heat capacity of the water and water vapor mixture. The specific heat capacity is a measure of the amount of heat required to raise the temperature of a substance by a certain amount. The specific heat capacity of water is 4.186 J/g°C, and the specific heat capacity of water vapor is 2.080 J/g°C.

To determine the electric power rating of the resistor, you will need to know the amount of heat added to the tank by the resistor and the time over which the heat was added. The power rating of the resistor is equal to the amount of heat added to the tank divided by the time over which the heat was added.

I hope this helps clarify the problem and provide some guidance on how to solve it. If you have any further questions or need additional help, please don't hesitate to ask.

Answer: Calendars are important so that; Students know what’s coming up. Adequate time is planned for important events and studying different levels of detail are accounted for students may be organized and prepared for anything.

Explanation:

The reason why it is important for Raul to use the different types of calendars is; So that he can know what is coming up

Calendars are documents that contain dates of all days in a year as classified by that specific calendar.

The most common calendar system types in the world today are Gregorian, Islamic and Chinese. Now, regardless of the type of calendar being used, the one common factor with all of them is that they assist everyone including students to know the events that are coming up.

In conclusion the reason why it is important for Raul to use the different types of calendars is So that he can know what is coming up

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Answer:

To determine if the project is economically justified using present worth (PW) analysis and a minimum acceptable rate of return (MARR) of 10%, we need to calculate the present worth of the cash flows associated with the project.

The initial cost of the project is $200,000. The annual maintenance cost is $5,000, and we need to calculate the present worth of this cost for the five-year life of the project. Using a 10% discount rate, we can calculate the present worth as follows:

PW maintenance = $5,000 * [(1 - 1/(1 + 0.1)^5)/0.1] = $20,890

The annual revenue for the project is $40,000 in year 1, increasing by $10,000 each year through year 5. We need to calculate the present worth of these cash flows using a 10% discount rate.

PW revenue = [$40,000 * (1/(1 + 0.1)^1)] + [$50,000 * (1/(1 + 0.1)^2)] + [$60,000 * (1/(1 + 0.1)^3)] + [$70,000 * (1/(1 + 0.1)^4)] + [$80,000 * (1/(1 + 0.1)^5)] PW revenue = $227,025

The total present worth of the cash flows is the present worth of the revenue minus the present worth of the maintenance cost minus the initial cost of the project.

PW total = PW revenue - PW maintenance - initial cost PW total = $227,025 - $20,890 - $200,000 PW total = $6,135

Since the PW total is positive, the project is economically justified using PW analysis and a MARR of 10% per year. Therefore, the project is profitable and is expected to generate a positive return on investment.

Explanation:

Answer:

20368.917N

Explanation:

Frictional force (F) is the product of the Coefficient of friction and the normal reaction.

F = μN

Coefficient of friction, μ = 0.2

Normal reaction = MgCosθ

Mass, m = 12 tonnes = 12 * 1000 = 12000 kg

N = 12000 * 9.8 * cos30

N = 101844.58

F = 0.2 * 101844.58

F = 20368.917N

Answer:

You didn't write full questions

Explanation:

Where are options? You say following but there is no any option

1. using kirchhoff’s rules, construct enough mathematically independent equations to solve for the current of each resistor. then calculate the % error between your measured and theoretical values for the current of each resistor. you must use both of kirchhoff’s rules (you must use at least 1 junction equation) and show work to receive any credi

To solve for the currents in a circuit using Kirchhoff's rules, we need to apply Kirchhoff's junction rule (also known as Kirchhoff's current law) and Kirchhoff's loop rule (also known as Kirchhoff's voltage law).

Let's consider a simple circuit with three resistors connected in series to a voltage source. We'll label the resistors as R1, R2, and R3, and the currents flowing through them as I1, I2, and I3, respectively.

Applying Kirchhoff's junction rule: At any junction or node in the circuit, the sum of the currents entering the node is equal to the sum of the currents leaving the node.

At the junction connecting the three resistors, we have: I1 = I2 + I3 -- Equation (1)

Applying Kirchhoff's loop rule: In any closed loop within the circuit, the sum of the potential differences (voltages) across the elements is equal to zero.

Let's consider the loop that includes R1, R2, and R3. Starting from a reference point, we traverse the loop in a clockwise direction. We can write the equation as follows:

V - I1 * R1 - I2 * R2 - I3 * R3 = 0 -- Equation (2)

These two equations (Equation 1 and Equation 2) are mathematically independent and can be solved simultaneously to determine the values of I1, I2, and I3.

To calculate the percent error between the measured and theoretical values, we need additional information, such as the resistance values (R1, R2, and R3) and the voltage (V) applied across the circuit. With this information, we can substitute the values into the equations and solve them. Then, by comparing the measured values of the currents with the theoretical values obtained from the equations, we can calculate the percent error using the following formula:

% Error = [(Theoretical Value - Measured Value) / Theoretical Value] * 100

Please provide the specific resistance values and the applied voltage to continue with the calculations and provide you with the percent error for each resistor.

We can see here that the probability that the number of 0's in the bit string is different from the number of 1's is:  0.055 (3 decimal places).

Let's calculate the probability for each scenario:

In Scenario 1: Number of 0's > Number of 1's

In an 8-bit string, the possible combinations where the number of 0's is greater than the number of 1's are:

00111111, 01011111, 01101111, 01110111, 01111011, 01111101, 01111110

= 7

Scenario 2: Number of 1's > Number of 0's

Similarly, the possible combinations where the number of 1's is greater than the number of 0's are:

11000000, 10100000, 10010000, 10001000, 10000100, 10000010, 10000001

= 7

The total number of possible 8-bit strings is \(2^{8} = 256\).

Thus, the probability that the number of 0's in the bit string is different from the number of 1's is

(7 + 7) / 256 = 14 / 256 ≈ 0.055 (3d.p)

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Answer:

design

Explanation:

Design is a process used to solve problems systematically.

Human beings have specific needs and desires, which require a design process to interpret those needs and make them real from a product or service.

Design uses specific methods and techniques integrating ideals, creativity, technology and innovation to satisfy users' needs and solve problems.

here's your answer..

The Bessemer process was a low-cost method for mass producing steel before the open-hearth furnace was invented. Henry Bessemer, an English inventor, created the procedure.

Bessemer Venture Partners assists business owners in creating solid foundations for enduring enterprises. Bessemer supports CEOs and founders at every step of growth with more than 135 IPOs & 200 portfolio businesses in the enterprise, consumer, and healthcare sectors.

James S. Janney III, Henry Phipps' great-grandson, took over as president of the board business directors in 1994 after Ogden Mills Phipps retired. The top seven stories at 1271 Avenida of Americas were leased by Bessemer Trust in 2018.

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The in-plane principal strains and the orientation of in-plane principal strain is 523.1 × 10⁻⁶.

From the information, the 60∘ strain rosette is attached to point A on the surface of the support. Due to the loading the strain gauges give a reading of εa=300(10⁻⁶), ε b = −140(10⁻⁶), and ε c = −440(10⁻⁶).

Here, want to determine the maximum in-plane shear strain, the orientation of maximum in-plane shear strain, the associated average normal strain and the in-plane principal strain.

The first principal strain is 523.1 × 10⁻⁶.

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Answer:

High-Level Data Link Control is a bit-oriented code-transparent synchronous data link layer protocol developed by the International Organization for Standardization.

Explanation:

Answer: I believe the answer is 963.75 if I am reading the question right.

Explanation:

ACH=60L/V

ACH=2.25

V=25,700

25,700*2.25=57,825

57,825/60=963.75

L=963.75

60(963.75)/25,700=2.25

The maximum amount of air leakage that would result in an ACH of no more than 2.25 would be approximately 956.25 cfm (cubic feet per minute).

Given that ACH of a house is a measure of its​ air-tightness and the formula for ACH is ACH = 60L/V. It means that ACH is inversely proportional to air-tightness or leakage. Therefore, the lower the air leakage the higher the ACH and vice versa.Mathematically, it is represented as:ACH ∝ 1/L or L ∝ 1/ACH

We can solve the question as follows:ACH = 2.25 (since the maximum ACH is 2.25)The volume of the house, V = 25,700 cubic feet.Substituting in the formula,2.25 = 60L/25,700Dividing both sides by 2.25 gives us,L = (2.25 * 25,700)/60L = 956.25 cubic feet per minute (cfm)

Therefore, the maximum amount of air leakage that would result in an ACH of no more than 2.25 is approximately 956.25 cfm (cubic feet per minute).

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Thermal energy is converted into mechanical energy and then to electrical energy, as in coal-burning power plants.

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Answer:

  A battery

Explanation:

There are several words used to describe such an assembly:

  pile, battery, electrolytic cell

Answer:

you forgot to add pic of your question

Answer:

Please check explanation for answer

Explanation:

Here, we are concerned with stating the advantages and disadvantages  of using a 6 tube passes instead of a 2 tube passes of the same diameter:

Advantages

* By using a 6 tube passes diameter, we are increasing the surface area of the heat transfer surface

* As a result of increasing the heat transfer surface area, the rate of heat transfer automatically increases too

            Thus, from the above, we can conclude that the heat transfer rate of a 6 tube passes is higher than that of a 2 tube passes of the same diameter.

Disadvantages

* They are larger in size and in weight when compared to a 2 tube passes of the same diameter and therefore does not find use in applications where space conservation is quite necessary.

* They are more expensive than the 2 tube passes of the same diameter and thus are primarily undesirable in terms of  manufacturing costs