What situations, by themselves, are strong candidates for refactoring by introducing inheritance? Check all that apply.a. There are several classes with methods called run() and stop().b. There are several classes, each of which has five common attributes with the same names and data types, one common method, and one distinct method.

Answer:

  40 ft

Explanation:

Assuming no loss of energy in the system of pulleys, the work done is the same whether you move the load directly or through the pulleys.

  W = Fd . . . . . . . . work is the product of force and distance

  F(10 ft) = (0.25F)(d) . . . . . where d is the distance we want to find

  d = 10F/(0.25F) = 40

The rope will need to move 40 feet.

we have shown that the material derivative of the jacobian of the deformation gradient tensor can be determined by d/dt(j(y,t)) through indicial notation.

In order to show that the material derivative of the jacobian of the deformation gradient tensor can be determined by d/dt(j(y,t)) through indicial notation, let us start by first defining some of the notations used in this problem. Definitions:    Jacobian of a deformation gradient tensor: The Jacobian of a deformation gradient tensor is defined as the determinant of the deformation gradient tensor. It is denoted by J(y,t).Material Derivative: The material derivative of a given quantity, represented by f(y,t), is defined as:df(y,t)/dt = (∂f/∂t) + (v·∇)fwhere v is the velocity of the fluid (or in this case, the material)Gradient: The gradient of a given scalar function, represented by f(y,t), is defined as the vector of its partial derivatives with respect to its independent variables. It is denoted by ∇f.Indicial Notation: Indicial Notation is a notational method that is used to represent and manipulate vectors, tensors, and other geometrical objects in a concise and unambiguous manner. It is based on the Einstein summation convention, which states that any repeated index in a term of a tensor expression should be summed over all possible values of that index.Indicial Notation is used in this problem to represent the partial derivatives of the deformation gradient tensor with respect to its independent variables, which are the spatial coordinates of the material point being considered.Now, let us apply these definitions and notations to the problem at hand.To begin with, we have the following given information:Jacobian of the deformation gradient tensor = J(y,t)Material Derivative of the Jacobian of the deformation gradient tensor = d/dt(J(y,t))Our task is to show that the material derivative of the Jacobian of the deformation gradient tensor can be determined by d/dt(j(y,t)) through indicial notation.To do this, we will start by expressing the material derivative of J(y,t) using its definition, as follows:df(y,t)/dt = (∂f/∂t) + (v·∇)fwhere f(y,t) = J(y,t)Therefore,df(y,t)/dt = (∂J(y,t)/∂t) + (v·∇)J(y,t)Now, let us use the indicial notation to express the partial derivatives of the deformation gradient tensor with respect to its independent variables. For convenience, we will denote the deformation gradient tensor by F and its partial derivatives by Fi,j, where i and j represent the spatial coordinates of the material point being considered.Thus, we can write the following expression for J(y,t):J(y,t) = det(F) = F1,1F2,2F3,3 - F1,1F2,3F3,2 - F1,2F2,1F3,3 + F1,2F2,3F3,1 + F1,3F2,1F3,2 - F1,3F2,2F3,1Using this expression, we can now use the chain rule of differentiation to find the partial derivatives of J(y,t) with respect to its independent variables. Specifically, we have:∂J(y,t)/∂t = ∂det(F)/∂t = det(F)·tr(F^-1(dF/dt))where tr denotes the trace of a matrix, and F^-1 denotes the inverse of the deformation gradient tensor.Using the indicial notation, we can write this expression as:∂J(y,t)/∂t = J(y,t)·Fi,i^-1·Fi,j·dFj,i/dtwhere we have used the summation convention to sum over the repeated index i.Now, let us look at the second term in the material derivative of J(y,t), which involves the gradient of J(y,t) with respect to its independent variables. Using the expression we derived earlier for J(y,t), we can write:∇J(y,t) = (partial(J)/partial(x1), partial(J)/partial(x2), partial(J)/partial(x3))where x1, x2, and x3 denote the spatial coordinates of the material point being considered.Using the indicial notation, we can write this expression as:∇J(y,t) = (partial(J)/partial(xi))where i = 1,2,3Therefore, the gradient of J(y,t) with respect to its independent variables can be expressed as:∇J(y,t) = J(y,t)·Fi,i^-1·Fi,j·(partial(Fj,k)/partial(xi))Using the chain rule of differentiation, we can express this as:∇J(y,t) = J(y,t)·Fi,i^-1·Fi,j·(dFj,k/dxk)·(dxk/dxi)where we have used the summation convention to sum over the repeated index k.Now, substituting these expressions back into the material derivative of J(y,t), we get:d/dt(J(y,t)) = (∂J(y,t)/∂t) + (v·∇)J(y,t)= J(y,t)·Fi,i^-1·Fi,j·dFj,i/dt + J(y,t)·Fi,i^-1·Fi,j·(dFj,k/dxk)·(dxk/dxi)·vwhich is the desired result.

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Answer:

The answer is below

Explanation:

The mining auxiliary operations in underground mining involve various activities that are important for a successful mining operation particularly in the areas of productive operating conditions.

The activities involved in the auxiliary operations in underground mining include the following: ventilation, haulage, drainage, power supply, lighting, delivery of compressed air, water, supplies to the working sections, and communications.

Answer:dimples

Explanation:

The option that is not designed to absorb collision energy is Reinforcements.

Thus option D (reinforcements)  is correct.

Here,

Reinforcements are designed to strengthen and support the structure of the vehicle, and not to absorb collision energy.

Automobiles have several safety features designed to protect drivers and passengers in the event of a collision. These safety features include airbags, seat belts, crumple zones, and several other components.

Among these safety features, the ones designed to absorb collision energy are dimples, slots, and crush zones. They are made to absorb the force of the impact during a collision and help prevent serious injuries to the occupants of the vehicle.

Therefore, the correct answer is D, reinforcements, which are not designed to absorb collision energy.

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The team members should be allocated based on their expertise and availability to ensure efficient completion of tasks within the given timeframe of two weeks.

Assumed Resources Required for the Kitchen Redesign Project:

1. Design:

  - Experienced kitchen designer or interior designer to create the layout and plan for the kitchen.

  - Necessary design software or tools to create visual representations and floor plans.

2. Cabinets:

  - Skilled cabinet maker to design and construct the cabinets according to the chosen style and finish.

  - Required woodworking tools and equipment.

  - Quality cabinet materials and hardware.

3. Countertops:

  - Knowledgeable purchaser to research and select the appropriate materials (granite, solid surface, or plastic laminate) and colors for the countertops.

  - Access to suppliers or manufacturers of the chosen countertop materials.

4. Flooring:

  - Skilled tiler or flooring specialist to install the chosen type of flooring (tile or wood).

  - Adequate flooring materials based on the selected flooring type.

  - Necessary tools and equipment for flooring installation.

5. Appliances:

  - Purchaser or procurement specialist to select and purchase the necessary kitchen appliances (refrigerator, dishwasher, microwave, stove) with the chosen finishes (stainless steel or painted).

  - Access to reliable appliance suppliers or vendors.

6. Tap(s) and Sink:

  - Cabinet maker or plumber to install the chosen tap(s) and sink with the desired finishes (chrome, stainless steel, or porcelain enamel).

  - Access to plumbing fixtures and suppliers.

7. Lighting:

  - Electrician to install the selected lighting fixtures, including recessed, pendant, and/or under cabinet mounted task lights.

  - Adequate lighting fixtures and necessary electrical equipment.

8. Graphic Designers:

  - Graphic designers to function with any visual design elements, such as creating digital renderings or graphics for presentation purposes.

It is important to note that the rates provided for the team members are specified as daily rates.

The team members should be allocated based on their expertise and availability to ensure efficient completion of tasks within the given timeframe of two weeks.

Additionally, coordination and communication among team members are crucial to ensure smooth workflow and successful implementation of the project.

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The correct answer is I mentioned earlier, the question lacks specific information that is needed to provide a precise answer. The number of millimeters indicated by a Vernier caliper will depend on the position of the sliding scale and the Vernier scale relative to the object being measured.

To use a Vernier caliper, the object being measured is placed between the jaws of the caliper, and the position of the sliding scale is adjusted until it touches the object being measured. The position of the sliding scale is then read off the main scale in millimeters, and the position of the Vernier scale is read off the Vernier scale. The difference between the main scale reading and the Vernier scale reading gives the measurement to the nearest fraction of a millimeter. Therefore, without specific information about the position of the sliding scale and Vernier scale relative to the object being measured, it is impossible to provide a specific answer. If you can provide more information, such as the position of the sliding and Vernier scales, I may be able to give you a more precise answer.

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The answer is C) rating locally sourced foods. While consuming locally sourced foods can have environmental benefits, it is not a direct action to mitigate against climate change. The other options listed - using energy efficient light bulbs, planting trees to remove CO2, driving a vehicle with high fuel economy, and improving regional land use practices - are all examples of actions individuals can take to help reduce their carbon footprint and mitigate against climate change.

Answer:

The City can grant higher budgets to emergency services like the Fire Department, so a higher budget will allow engineers & scientists to innovate new technology and add more fire stations across the city.

Explanation:

Answer:

P1+1/2pv2/1+pgh1=P2+1/2pv2/2+pgh2

The pressure would be doubled (3800psi) as the day heats up because of the sun, the temperature increases to 105°F.

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Answer:

Feed Forward

Explanation:

In FEED FORWARD compression design the signal is split at the input, and one signal is used to compress the other slightly delayed split signal.

I hope it helps! Have a great day!

Answer:It was B

Explanation:i took it on apec

and got A wrong so it told it was B

The action that is an example of how engineering affects science is designing an infrared camera that can record animal behavior in darkness. The correct option is B.

Engineering is the process of using mathematical and scientific principles to solve issues in the real world and create novel products and processes for use in a variety of fields and applications.

Engineering is the use of science and math to address issues. Engineers analyze how things operate and use scientific discoveries in real-world settings.

Strong problem-solving skills are among the most important traits an engineer can have. A substantial portion of an engineer's duties involve analyzing a situation, spotting issues, and then coming up with solutions.

Designing an infrared camera that can capture animal behavior in the dark is an example of how engineering influences research.

Thus, the correct option is B.

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The correct answer is The total ac load power can be calculated using the formula:the total ac load power is 80 mW.

P = V^2/Rwhere P is the power, V is the voltage, and R is the resistance.In this case, the voltage is 8 Vpp, which means the peak voltage is 4 V. The peak-to-peak voltage is twice the peak voltage, so Vpp = 8 V. The effective voltage or rms voltage (Vrms) can be calculated as Vpp/2 = 4 V.The resistance is 200 ohms.So, the total ac load power is:P = Vrms^2/RP = (4 V)^2/200 ohmsP = 16/200P = 0.08 W or 80 mW (option d)

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Answer:

One corner ( D )

Explanation:

when dimensioning the location of a house on site the standard and the acceptable procedure is to ; Dimension One corner of the house

Adjacent lots is a term used to describe parcels of the site that meet each other along their boundary lines. and they also include parcels that may be separated by streets

Answer:

fgfr

cg

Explanation:

xhrrhfdfghtrfgg

Impulse response is a fundamental concept in signal processing. It refers to the output of a system when it is stimulated with a short pulse or impulse.

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Answer:

Magic

Explanation:

magic is the answer to everything unexplainable

Answer:

a

Explanation:

aaaaaa

Answer:

Explanation:

Step one:

given data

V1=0.25m^3

T1=290k

P1=100kPa

V2=0.5m^2

T2=405k

P2=? final pressure

Step two:

The combined gas equation is given as

P1V1/T1=P2V2/T2

Substituting we have

(100*0.25)/290=P2*0.05/405

25/290=0.5P2/405

0.086=0.05P2/405

cross multiply

0.086*405=0.05P2

34.9=0.05P2

divide both sides by 0.05

P2=34.9/0.05

P2=698.3Kpa

Therefore the new pressure is 698.3Kpa when the gas is compressed

Answer:

Explanation:

it can only be 22,400=55000

and 9,600=72,000 so it won't be an equal criteria so the answer is 7=9

The examples of engineering controls is Biohazard waste containers and Spill clean up kits.

An engineering controls is a workplace process that protect workers by removing hazardous conditions or by placing a barrier between the worker and the hazard.

An example of engineering controls is installation of exhaust ventilation to remove airborne emissions to shield the worker.

Hence, the examples of engineering controls is Biohazard waste containers and Spill clean up kits.

Therefore, the Option C and D is correct.

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Utilizing a set of guidelines to dimension building plans offers several benefits that contribute to the overall efficiency, accuracy, and clarity of the construction process.

Some key advantages are:

1)Consistency: Guidelines for dimensioning ensure uniformity and consistency throughout the building plans.

2)Clear Communication: Accurate and well-defined dimensions help to convey design intent effectively.

When all parties involved, such as architects, engineers, contractors, and subcontractors, follow the same guidelines, it promotes clear communication and minimizes confusion.

3)Precision and Accuracy: Guidelines assist in maintaining precision and accuracy in dimensioning building plans.

By specifying the appropriate units, tolerances, and placement of dimensions, the plans provide crucial information required for accurate construction.

This ensures that various components fit together properly and minimizes the need for on-site adjustments or modifications.

4)Time and Cost Efficiency: Clear dimensioning guidelines can enhance the efficiency of the construction process.

Contractors can accurately estimate the materials and resources required, reducing the risk of over-ordering or shortages.

5)Compliance and Standards: Many construction projects are subject to building codes, regulations, and industry standards.

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Answer:

A, D, F

Explanation:

took on edge.

Answer:

The answer is A,D,F

A:observing and interpreting readings on gauges, meters, and charts

D:testing boiler water quality or arranging for testing

F:operating or tending stationary engines, boilers, and auxiliary equipment

Explanation:

I got all right on edge.

Answer:

Efficiency is defined as any performance that uses the fewest number of inputs to produce the greatest number of outputs. Simply put, you're efficient if you get more out of less.

Explanation:

Answer:

21 m

Explanation:

Since F₁ = 100 N and acts at an angle of 20° to the horizontal, it has horizontal component F₁' = 100cos20° = 93.97 N and vertical component F₁" = 100sin20° = 34.2 N.

Also, F₂ = 75 N and acts at an angle of -35° to the horizontal, it has horizontal component F₂' = 75cos(-35°) = 75cos35° = 61.44 N and vertical component F₂" = 75sin(-35°) = -75sin35° = -43.02 N

The resultant horizontal force F₃' = F₁' + F₂' = 93.97 N + 61.44 N = 155.41 N

The resultant vertical force F₃" = F₁" + F₂" = 34.2 N - 43.02 N = -8.82 N

If f is the frictional force on the block, the net horizontal force on the block is F = F₃' - f.

Since f = μN where μ = coefficient of kinetic friction = 0.4 and N = normal force on the block.

For the block to be in contact with the surface, the vertical forces on the block must balance.

Since the normal force, N must equal the resultant vertical force F₃" and the weight, W = mg of the object for a zero net vertical force,

N = mg + F₃" (since both the weight and the resultant vertical force act downwards)

N = mg + F₃"

Since m = mass of block = 35 kg and g = acceleration due to gravity = 9.8 m/s² and F₃" = 8.82 N

So,

N = mg + F₃"

N = 35 kg × 9.8 m/s² + 8.82 N

N = 343 N + 8.82 N

N = 351.82 N

So, the net horizontal force F = F₃' - f.

F = 155.41 N - 0.4 × 351.82 N

F = 155.41 N - 140.728 N

F = 14.682 N

Since F = ma, where a = acceleration of block,

a = F/m = 14.682 N/35 kg = 0.42 m/s²

To find the distance the block moved, x we use the equation

x = ut + 1/2at² where u = initial speed of block = 0 m/s, t = time = 10 s and a = acceleration of block = 0.42 m/s²

Substituting the values of the variables into the equation, we have

x = ut + 1/2at²

x = 0 m/s × 10 s + 1/2 × 0.42 m/s² × (10 s)²

x = 0 m + 1/2 × 0.42 m/s² × 100 s²

x = 0.21 m/s² × 100 s²

x = 21 m

So, the distance moved by the block is 21 m.

Once the interior design project is complete, the deliverables must be accepted properly. Following explains how completed interior design project deliverables shall be accepted.

Acknowledge the designers and any additional workers who assisted in the project. It should also describe what was accomplished and what the final outcome should look like. Explain in detail what was done and if everything meets your needs and specifications. During the review, ask to see samples of the products that were used to complete the design. This is your chance to express any concerns you may have. Finally, after a thorough inspection, once you're satisfied with the final product, you can accept the completed interior design project. To do so, you may have to sign off on the work in order to provide confirmation that the job has been completed to your satisfaction. For instance, in the case of an office space, once the project is finished, you can acknowledge the designers who worked on the project. During the inspection, ask for a demonstration of any furniture items or equipment that were used. You may also want to make certain that everything is in good working order. Finally, once everything has been checked and you're happy with the final product, you can sign off on the work to accept the completed interior design project.

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Answer:

The part of a drill that holds the drill bit in place is called the chuck.

Utilizing modern technologies such as hydraulic fracturing and other enhanced oil recovery techniques can help to improve the accuracy of reserve estimation.

The volumetric method is the most frequently utilized method for estimating oil and gas reserves in a reservoir. The method is based on the calculation of the oil and gas volume in place within a reservoir by means of mathematical calculations applied to geologic and engineering data.

In tight oil reservoirs, the application of the volumetric method requires the addition of specialized considerations. Compared to conventional reservoirs, tight oil reservoirs have a low permeability, large storage capacity, and low porosity. The mathematical calculations utilized for reservoir engineering in conventional reservoirs cannot be directly applied to tight oil reservoirs. In the case of tight oil reservoirs, the method involves several unique steps to accurately estimate the oil in place.

First, the reservoir volume is calculated. Second, the initial oil and gas volume in place is calculated based on the porosity. Then, the hydrocarbon content is calculated as a function of the pore size distribution. These steps provide a foundation for further calculations to estimate oil and gas recovery.

In order to minimize the uncertainties of volumetric method estimation of reserves in tight oil reservoirs, it is necessary to pay special attention to the following points:

Collecting and analyzing geologic data, selecting the appropriate data, and using a range of geostatistical models for uncertainty analysis. Also, the effective porosity and total porosity of the reservoir must be determined accurately. Factors such as the impact of reservoir heterogeneity, rock compressibility, and fluid type must also be considered.

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The three-phase line voltage is given as 346.41 Vms

The real power drawn from the supply is given as 19.2kW

"Line voltage" refers to the voltage level that is supplied to a building or facility by the power company's electrical grid. In the United States, the standard line voltage for residential and commercial buildings is 120 volts or 240 volts, depending on the type of electrical service provided.

Line voltage is also sometimes referred to as "mains voltage" or "utility voltage." The term "line-to-line voltage" is used to describe the voltage difference between two phases of a three-phase electrical system.

In summary, line voltage is the electrical voltage level that is supplied to a building or facility from the power company's electrical grid.

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