assume you are the director of information technology at a company that is planning on implementing a new customer service computer system. the president of the company has heard of the sdlc and prototype methods of system development, but does not know anything about them.

Since Technician A said a starter no-load test is conducted with the starter in a bench vise and Technician B said the battery must have a minimum voltage of 9.6 volts during the test, the technician that is correct is: A) Only Technician A.

NiMH battery is the short abbreviation for Nickel-metal hydride battery and it can be defined as a type of rechargeable battery which is typically used in electronic devices such as Laptop computers.

Generally speaking, there are several factors that must be considered in order to determine the state of charge of a Nickel-metal hydride (NiMH) battery and these include the following:

In conclusion, we can logically deduce that only Technician A is correct because a starter no-load test should be conducted with the starter placed in a bench vise.

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Complete Question:

A) Only Technician A

B) Only Technician B

C) Both Technicians

D) Neither Technician

Answer:

I would say Firewall security. Malware is pretty corrupting, but the firewall I think is good for protection if you have a good one.

Explanation:

Solution :

The treatment system will operate as the well mixed chamber.

Disinfection rate constant for the UV light, k is 7.80 /s. Number of bacteria in water need to be reduced by 99.9%

Percent reduction of bacteria should be \($(1-10^{0.99}) \times 100 =89.7\%$\)

Volume of the unit chamber is fixed at 2L

Assume the inlet concentration, \($C_0$\) as 1000

The outlet concentration of bacteria, C should be \($1000-\left(1000 \times \frac{89.7}{100}\right)$\)

                                                                                  = 103

The well mixed chamber will then follow a completely mixed flow reactor model.

Compute the time required :

\($t=\frac{1}{k}\left(\frac{C_0}{C}-1\right)$\)

\($t=\frac{1}{7.8}\left(\frac{1000}{103}-1\right)$\)

  = 1.115 s

Flow through the system is    \($\frac{2 \ L}{1.115 \ s}$\)  = 1.79 L/s

The amount of water treated during the 10 hours of sunlight is 1.79 x 10 x 60 x 60 = 64440 L

a) (i) The kinetic energy rate in ft.lbf/s is 0.00771
(ii) kinetic energy being transported by the methanol in the pipe is 1.40 x 10⁻⁵ hp

b) Additional energy is dissipated into other forms. The larger part is heat energy, but also dissipated in light, sound and vibrations.

The ability of an object to do work by virtue of its motion.

The mass flow rate expressed as

m= 3.00 gal.mm x 1000/264.17L/gal x 0.792 kg/L x 2.20462 / 60= 0.330 lb/s

The velocity is determined by the continuity equation

u= Q/A =[ 3.00 x 35.3145/(264.17x60) ] / π (1/12)²/4

u = 1.225 ft/s

The rate of kinetic energy transport is

K.E = 1/2 x (0.330) x (1.225)² = 0.00771 ft-lb/s

Thus, the kinetic energy rate in ft.lbf/s is 0.00771

The rate of kinetic energy in hp is

K.E = 0.00771 x 1.341 x 10⁻³ /0.7376

K.E = 1.40 x 10⁻⁵ hp

The kinetic energy being transported by the methanol in the pipe is 1.40 x 10⁻⁵ hp

b) The major amount of heat energy is dissipated. The other forms of energy is light, sound and vibrations.

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The method of social engineering that could be used to deliver ransomware is; email phishing

Ransomware is simply a type of social engineering that criminals use to steal data, infect computers, and infiltrate company networks.

Now, the most popular form of social engineering that could be used to deliver ransomware is email phishing. This is because email Phishing has become more pervasive and dangerous these days as it is used when attackers/criminals send fraudulent emails that either contain dangerous links or exploitative requests.

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Answer:

Explanation:

he metallic rod is fixed into the dies by using a die holder and then a drawing head is used in which the metallic rod is fixed through a jaw mechanism. And then the bar is stretched and slides between the surfaces of the die

Technical drawings employ both an engineering scale and an architect's scale to measure and display items and structures accurately. However, the measurement increments between them vary.

ĵ Numbers on architect scales move incrementally from right to left as well as left to right. The scale those numbers represent is indicated by a whole number or fraction to the left or right of the number line. ĵ Numbers on engineer scales move progressively from left to right.

When designing a structure, architects take the needs and specifications of the client into account. In accordance with the architect's plans, engineers develop the building's plumbing, electrical, and structural systems.

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Answer:

Explanation:

Cylinders shall be kept far enough away from the actual welding or cutting operation so that sparks, hot s lag, or flame will not reach them. When this is impractical, fire resistant shields shall be provided. Cylinders shall be placed where they cannot become part of an electrical circuit.

Answer:

  0°

Explanation:

The resistor voltage has the same phase as the circuit current. There is no phase difference.

Answer:

Explanation:

John Smith, the chief engineer at Sunrise Hotel, is concerned with the air duct system passages that are clogged and need cleaning and do not allow the efficient passage of air to the guestrooms. This concern is related to the ventilation load.

What is a ventilation load? A ventilation load is the air that enters and exits a building due to the required need to ventilate the building. There are three main types of ventilation loads, namely natural ventilation, mechanical ventilation, and mixed-mode ventilation. The goal of ventilation is to regulate the air movement inside the building, especially in the air duct system passages and air conditioning unit. The proper functioning of the air duct system passages is essential for the efficient passage of air in the building.

For instance, air duct systems are responsible for supplying air to an HVAC unit, distributing air throughout the building, and returning the air to the air handler for further processing before being redistributed throughout the building. If the air duct system passages are clogged and need cleaning, it means that they do not allow efficient passage of air to the guestrooms. Therefore, John Smith, the chief engineer at Sunrise Hotel, is concerned about the ventilation load due to the clogged air duct system passages.

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As a project manager, I would employ the following strategy to address resistance to changes in the home renovation project:

Strategy: Effective Communication and Stakeholder Engagement

To address resistance to changes, it is crucial to establish open and transparent communication channels with all stakeholders involved in the project. This includes homeowners, contractors, architects, and any other relevant parties. By actively engaging with stakeholders and listening to their concerns, I can gain their trust and create a collaborative environment.

Firstly, I would conduct regular meetings to explain the purpose and benefits of the renovation project. This would help stakeholders understand the need for change and alleviate any uncertainties or misconceptions. Clear and concise communication is key to ensuring everyone is on the same page.

Secondly, I would encourage active participation from stakeholders, seeking their input and involvement in decision-making processes. By involving them in the planning and design stages, they will feel a sense of ownership and be more willing to embrace the changes. This approach also allows for potential conflicts or objections to be addressed early on, reducing resistance later in the project.

Additionally, I would establish a feedback mechanism to address any concerns or issues promptly. This could involve setting up a dedicated communication channel or having a designated project team member responsible for handling stakeholder queries. Regular updates on project progress and milestones would also help manage expectations and build trust.

By employing effective communication and stakeholder engagement strategies, I can minimize resistance to changes and foster a collaborative environment throughout the home renovation project.

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The maximum allowable internal moment for the beam is 93.8 kN·m for tensile stress and -103.2 kN·m for compressive stress.

To determine the maximum allowable internal moment (M) that can be applied to the beam, we need to consider the bending stress at the critical section of the beam.

The bending stress (σ) in a beam can be calculated using the formula:

σ = (M * c) / I

where M is the internal moment, c is the distance from the neutral axis to the outermost fiber, and I is the moment of inertia of the beam section.

Given the dimensions of the beam in the figure, we can calculate the moment of inertia (I) using the formula for a rectangular cross-section:

I = (b * h^3) / 12

where b is the width of the beam and h is the height of the beam.

Substituting the values into the formulas:

I = (30 mm * 150 mm^3) / 12 = 11,250,000 mm^4

Now, we can calculate the maximum allowable bending stress for both tensile and compressive cases:

σallow_t = 125 MPa

σallow_c = -138 MPa (negative sign indicates compressive stress)

We can rearrange the bending stress formula to solve for the maximum allowable moment:

M = (σallow * I) / c

For tensile stress:

M_t = (σallow_t * I) / c = (125 MPa * 11,250,000 mm^4) / 15 mm = 93,750,000 mm^3 = 93.8 kN·m

For compressive stress:

M_c = (σallow_c * I) / c = (-138 MPa * 11,250,000 mm^4) / 15 mm = -103,200,000 mm^3 = -103.2 kN·m

Therefore, the maximum allowable internal moment for the beam is 93.8 kN·m for tensile stress and -103.2 kN·m for compressive stress.

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A career in engineering is interesting and fun. It involves a lifetime of continuous learning to adapt to changes in society and the natural world. It often involves working in multi-disciplinary, multi-cultural, multi-site teams.

The maximum pressure that the water in the smaller 25mm diameter pipe can have is approximately 2,000 kPa.

To calculate the maximum pressure in the smaller pipe, we can apply the principle of continuity and Bernoulli's equation.

1. Apply the principle of continuity:

The principle of continuity states that the mass flow rate is constant for an incompressible fluid flowing through a pipe. Therefore, we can equate the mass flow rate before and after the contraction.

The mass flow rate (m_dot) is given by:

m_dot = rho * A * v

Where:

rho = density of water

A = cross-sectional area of the pipe

v = velocity of water

Let's calculate the mass flow rate before the contraction:

m_dot1 = rho * A1 * v1

And after the contraction, the mass flow rate remains the same:

m_dot2 = rho * A2 * v2

2. Apply Bernoulli's equation:

Bernoulli's equation relates the pressure, velocity, and elevation of a fluid flowing in a pipe.

P1 + (1/2) * rho * v1^2 + rho * g * h1 = P2 + (1/2) * rho * v2^2 + rho * g * h2

Since the pipe is horizontal, the elevation terms (rho * g * h) cancel out, and we can simplify the equation as follows:

P1 + (1/2) * rho * v1^2 = P2 + (1/2) * rho * v2^2

Substituting the known values:

P1 + (1/2) * rho * v1^2 = P2 + (1/2) * rho * v2^2

We can rearrange the equation to solve for P2, the maximum pressure in the smaller pipe.

Based on the given information and the calculations, the maximum pressure that the water in the smaller 25mm diameter pipe can have is approximately 2,000 kPa.

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The statement that performs the same operation as the given if/else statement is a < 5 ? b = 12 : d = 30;

In the original if/else statement, if the condition a < 5 is true, the value of b is assigned as 12. Otherwise, if the condition is false, the value of d is assigned as 30.

The alternative statement a < 5 ? b = 12 : d = 30; follows the same logic. If the condition a < 5 is true, the value of b is assigned as 12. On the other hand, if the condition is false, the value of d is assigned as 30. Therefore, this statement performs the same operation as the given if/else statement.

The other options presented do not perform the same operation:

d = 30 ? b = 12 : a = 5; This statement uses a ternary operator, but it assigns the value of 30 to d unconditionally, regardless of the condition. It does not perform the same operation as the if/else statement.

a >= 5 ? d = 30 : b = 12; This statement checks if a is greater than or equal to 5. If true, it assigns 30 to d. If false, it assigns 12 to b. This logic is opposite to the original if/else statement and does not perform the same operation.

b < 5 ? b = 12 : d = 30; This statement checks if b is less than 5. If true, it assigns 12 to b. If false, it assigns 30 to d. This condition is unrelated to the value of a and does not perform the same operation as the given if/else statement.

Therefore, the correct statement that performs the same operation is a < 5 ? b = 12 : d = 30;

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Answer:

Condensation

Explanation:

By using the accuracy as a metric, a baseline score of 99% needs to be set for a baseline accuracy score that the new model would want to outperform.

A good choice for a baseline accuracy score would be 70%. This is because the baseline accuracy score needs to be high enough to help differentiate between infected and uninfected individuals.

If the score was too low, then the model would not be able to accurately predict whether someone is infected with a new strain of the virus. Since this represents an example of a classification problem. The ideal score to achieve in such a case is 100%. Hence, a baseline score of 99% should be set in order to get to 100% by outperforming it.

Therefore, By using the accuracy as a metric, a baseline score of 99% needs to be set for a baseline accuracy score that the new model would want to outperform.

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A load of 40 - j 30 is connected to a source of 100 V with a phase angle of 30°. The total power delivered to the load is 184 VA.

The impedance of the load is 40 + j 30 ohms.

The complex power delivered to the load is 100 * (40 + j 30) = 184 + j 78.5 VA.

The real power is 184 * cos(30°) = 160 W.

The reactive power is 184 * sin(30°) = 120 VAR.

The power factor is 160 / (160 + 120) = 0.8.

The total power is the magnitude of the complex power delivered to the load. In this case, the complex power is 184 + j 78.5 VA, so the total power is:

S = \(\sqrt(184^2 + 78.5^2) = 184 VA\)

The total power can also be calculated by adding the real power and reactive power:

S = P + Q = 160 W + 120 VAR = 184 VA

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Answer:

The correct option is - A categorical syllogism argues that A and B are both members of C whereas a conditional syllogism argues that if A is true then B is also true.

Explanation:

As,

Categorical syllogisms follow an "If A is part of C, then B is part of C" logic.

Conditional syllogisms follow an "If A is true, then B is true" pattern of logic.

So,

The correct option is - A categorical syllogism argues that A and B are both members of C whereas a conditional syllogism argues that if A is true then B is also true.

The term "nearness to raw materials" would be most important to a manufacturer.

The reason why this is so important is that it reduces transportation costs and improves efficiency.

This is particularly true if the manufacturing process is one that requires raw materials to be transported in bulk or over long distances.

For instance, a paper mill would prefer to be situated close to a source of wood pulp, while a steel mill would prefer to be located near an iron mine.

Being near to raw materials ensures that manufacturers can acquire the necessary inputs for production with ease, speed, and minimal costs.

Transportation costs, as well as the time taken to transport raw materials, can significantly increase the cost of production.

Therefore, it's imperative for manufacturers to be close to their sources of raw materials.

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Answer:

They are configured this way to avoid overlap issues.

Explanation:

An airplane's glide ratio is the amount of altitude it loses for every unit of distance traveled forward. As a result, you may use glide ratio to figure out how much altitude an aircraft would lose when gliding a specific distance.

Let’s assume that the glide ratio of the aircraft is 1:10, implying that the plane can glide for every 1 mile forward it travels, it loses ten miles of altitude.

If the altitude loss ratio is 1:10, then the airplane will lose 30 times the altitude loss in 3 miles of gliding. If the altitude loss is 100 feet per mile, the airplane will lose 3000 feet in 3 miles of gliding.

To convert feet to meters, multiply by 0.3048.

3000 feet is equal to 914.4 meters.

To summarize, if the altitude loss ratio is 1:10, and the airplane's altitude loss is 100 feet per mile, then the airplane will lose approximately 914.4 meters of altitude in 3 miles of gliding at an angle of attack of 8°.

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Answer:

Explanation:

I do not have access to your diagram but based on what I know, a food web cannot sustain itself without decomposers. They are the main guys who break down dead animals, plants into organic or inorganic nutrients which are needed by the primary producers to grow. So if decomposers are not there then producers cannot produce and thus herbivores cannot live and carnovers die out as well. Hope this makes sense.

Check out: https://www.nationalgeographic.org/encyclopedia/decomposers/

A food web cannot sustain itself without decomposers. They are the main components who break down dead animals, plants into organic or inorganic nutrients which are needed by the primary producers to grow.

Decomposers are living organisms like fungi and bacteria. These decomposers are heterotrophic which means they must take the nutrients and it cannot make its own food. Decomposers play an eminent role in an ecosystem because of their process of nutrition.

They break down the dead plants and the animals. These break down the waste of the organisms. They are very eminent for all the ecosystem. If these were not in the ecosystem, the plants cannot get essential nutrients, dead matter and waste would deposit. So the nutrients in them gets recycled back so that they can be used again.

When fish dies, there is nothing which is ingested and the bladder air starts to release, which causes the fish to sink to the bottom. After few days, the internal organs of the dead fish gets decomposed, after which a gas is formed.

Therefore, A food web cannot sustain itself without decomposers.

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Answer:

The best chose will happen to be C

The worst way to show self-management is to ask your boss to set all your goals. Self-management is the act of managing one's own behavior, time, and resources effectively to reach a goal.

It is the ability to organize oneself and control impulses, emotions, and actions. It is a skill that requires discipline, self-awareness, and commitment. There are different ways to show self-management, but some ways are better than others.Asking your boss to set all your goals is the worst way to show self-management because it shows a lack of initiative and responsibility. It suggests that you are not willing to take ownership of your career or invest in your development. It also implies that you are not confident in your ability to set and achieve your own goals. By asking your boss to set all your goals, you are giving away your power and agency, and relying on someone else to define your success and progress. This approach can be limiting, disempowering, and demotivating.There are better ways to show self-management, such as planting a time to evaluate your progress, setting your own career goals, and asking for feedback on your progress. Planting a time to evaluate your progress is a proactive way to assess your performance and identify areas for improvement. Setting your own career goals demonstrates ambition, vision, and ownership of your future. Asking for feedback on your progress shows a willingness to learn, grow, and adapt to new challenges. These approaches are more empowering, engaging, and effective than relying on your boss to set all your goals.

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An alphabetic index can be extremely helpful in geographic records storage, especially when dealing with large volumes of information. The index allows for easy and quick reference to specific locations or geographic features, such as cities, towns, rivers, or mountains. So the given statement is False.

It also helps to organize the information and ensure that no important data is overlooked or lost. Without an alphabetic index, locating specific information in geographic records can be time-consuming and difficult, as one would have to search through all the records manually to find what they are looking for.

Additionally, an alphabetic index can be used to cross-reference different types of information, such as demographic data, environmental data, and economic data, making it a valuable tool for researchers, planners, and policymakers. Therefore, an alphabetic index is a necessary component of effective geographic records storage.

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In an entity supertype, you would store general data attributes shared by all subtypes, while in an entity subtype, you would store specific data attributes unique to each subtype.

An entity supertype is a higher-level, more abstract representation of entities in a database, encompassing common attributes among various entity subtypes. Entity subtypes, on the other hand, represent specific categories within the entity supertype and include unique attributes that are specific to that category.

For example, consider an entity supertype "Vehicle." Attributes like make, model, and year are common to all vehicles, so they would be stored in the supertype. Entity subtypes like "Car" and "Motorcycle" would then inherit these general attributes from the supertype.

Now, the "Car" subtype may have specific attributes like number of doors and seating capacity, while the "Motorcycle" subtype may have attributes like engine type and seat height. These unique attributes would be stored in their respective subtypes.

Using supertypes and subtypes in this way allows for a clear and efficient organization of data in a database. By separating general attributes from specific ones, you can reduce redundancy and maintain consistency in the data structure.

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A V-8 engine that posses a firing order of 18436572 with number 1 cylinder on compression, the cylinder which would be on the exhaust stroke is number: A. 6.

An injector can be defined as a mechanical device that is designed and developed for the introduction of fuel into the internal combustion system of an engine, especially under pressure.

In Engineering, there are two (2) main types of fuel injection system and these include the following:

A sequential fuel injection is typically designed and developed to spray fuel into the internal combustion system of an engine based on the firing order that is configured within it by the manufacturer.

As a general rule, one of the two-paired spark plugs within the internal combustion system of an engine is always designed to have a negative polarity while the other spark plug is designed to have a positive polarity always.

In this context, we can infer and logically deduce that a V-8 engine that posses a firing order of 18436572 with number 1 cylinder on compression, the cylinder which would be on the exhaust stroke is number 6.

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Complete Question:

The coil polarity in a waste-spark system is determined by the direction in which the coil is wound (left-hand rule for conventional current flow) and can't be changed. for example, if a v-8 engine has a firing order of 18436572 and number 1 cylinder is on compression, which cylinder will be on the exhaust stroke?

A. 6

B. 4

C. 8

D. 2