2. Determine the mass of air in a 2 cubic meter tank if the air is at room temperature, 20 degrees C, and the absolute pressure within the tank is 200 kPa (abs).

The statement "the enormous gains in crop yields brought about by green revolution technologies may soon stop" is definitely true.

The green revolution may be defined as a type of revolution in which there would be a great increase in the production of food grains (such as rice and wheat) due to the introduction of high-yielding varieties, the use of pesticides, and better management techniques.

It started around the 1960s and helped in increasing food production in the country. The green revolution's primary aim was to introduce high-yielding varieties (HYVs) of cereals to alleviate poverty and malnutrition. They soon stop because they are not much efficient as pear present needs and conditions.

Therefore, the statement "the enormous gains in crop yields brought about by green revolution technologies may soon stop" is definitely true.

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The pyramids are important to the study of engineering because they were some of the first structures built using engineering principles. The pyramids are an example of how engineering can be used to create amazing structures.

What is pyramid?

A pyramid is a structure with triangular exterior surfaces that converge to a single step at the summit, giving the shape the shape of a pyramid in the geometric sense. A pyramid's base can be trilateral, quadrilateral, or any polygon shape. A pyramid, as a result, has at least three exterior triangle surfaces. A typical variant is the square pyramid, which has a square base and four triangular exterior surfaces. The design of a pyramid, with the majority of the weight closer to the bottom and the pyramidion at the apex, means that less material will be pushed down from above. This weight distribution enabled early civilizations to build stable massive constructions.

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Answer:

To find the stress you need to know the applied load. Without that information, it is not possible to determine the axial stress in each of the three rods.

Explanation:

To determine the axial stress in each of the three rods, you would need to know the applied load and the cross-sectional area of each rod. The formula for axial stress is:

Stress (σ) = Load (F) / Area (A)

The area of a rod can be determined using the formula:

Area = π * (diameter/2)^2

Where diameter is the diameter of the rod in inches.

So,

For rod 1(aluminum rod)

Area = π * (2.00/2)^2 = 3.14 in^2

For rod 2(brass rod)

Area = π * (1.50/2)^2 = 1.77 in^2

For rod 3(steel rod)

Area = π * (3.00/2)^2 = 7.07 in^2

To find the stress you need to know the applied load. Without that information, it is not possible to determine the axial stress in each of the three rods.

Answer:

C. Signal-to-quantization-noise ratio

Explanation:

The "post-implementation" process begins when the ERP system software is in production, initial training is complete, and conversion of critical data is done.

The post-implementation process refers to the phase following the successful implementation of an ERP system. In this phase, the ERP system has been launched, users have received the necessary training, and all crucial data has been converted and integrated into the system. The focus during this stage is to monitor the system, provide ongoing support, address any issues, and continuously improve the system to meet the organization's evolving needs.

The post-implementation process is a vital stage in the life cycle of an ERP system, ensuring its smooth operation, user adoption, and optimization for the organization's success.

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1)amplitude modulation, or AM,

2)frequency modulation, or FM.

these are the two signals that make up the FM radio wave

Green with white lettering are the colours of a sign which tells you the distance to the next exit of a highway.

Green is a common color for directional signage. Along with location and directions, these signs also tell you how far something is. Blue: This color is also used for wayfinding signage. Information on nearby amenities including rest areas, hospitals, gas stations, and motels is provided by these signs.

Red could be difficult to understand in a crisis because we are taught to interpret it as "stop." Contrarily, green signifies safety and "go," making it clear to the public to maintain composure and abide by the denotations. This is why green emergency signs are utilized in public buildings.

White: A white backdrop indicates a regulatory sign. Yellow: A general warning is sent by the color yellow. Green: Green denotes safe directing indicators or traffic patterns.

Thus, Green with white lettering.

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In many ways, uncertainty is essential to science because it motivates researchers to conduct additional studies and research.

Being free of uncertainty is a major driving force behind many actions and decisions because the desire for certainty is a strong human emotion. We never know how decisions or actions will turn out, even when we seem to put uncertainty to rest—we pick a career, our elected officials tighten laws to address pollution, the Federal Reserve Board lowers interest rates to boost economic activity. Whether we like it or not, there is always uncertainty.

But a lot of us tend to believe that science offers conclusive solutions. In the end, science explains how and why things occur. Science is a problem-solver. Future predictions are made by scientists.

However, despite our desire for scientific findings to be indisputable, they are not. Scientists can't work with absolute certainty. Probabilities are used to base conclusions. Predictions can be proved wrong by new information, and well-established theories can even be changed. In many ways, uncertainty is essential to science because it motivates researchers to conduct additional studies and research.

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✅C) Avoid having to use a net ✅

IamSugarBee

Answer:

  4.2

Explanation:

The "allowance" is the difference between the maximum shaft size and the minimum hole size.

maximum shaft = C +D = 8.5 +0.1 = 8.6

minimum hole = A -B = 4.8 -0.4 = 4.4

Allowance = 8.6 -4.4 = 4.2

__

For an interference fit, the allowance is negative.

Answer:

There is a huge difference between theory vs. practice. Theory assumes an outcome, while practice allows you to test the theory and see if it is accurate.

Theory and Practice Explained

Practice is the observation of disparate concepts (or a phenomenon) that needs explanation. A theory is a proposed explanation of the relationship between two or more concepts, or an explanation for how/why a phenomenon occurs.

Answer:

A turbo blade has the best features from both other types of blade. The continuous, serrated edge makes for fast cutting while remaining smooth and clean. They are mostly used to cut a variety of materials, such as tile, stone, marble, granite, masonry, and many other building materials.

Explanation:

Answer:

Masonry Saw

Explanation:

Masonry Saws can be used to cut brick, ceramic, tile and or stone.

Answer: A. High

Explanation:

In order to have an obstructed view from your seat, you should always adjust your seat as high as possible, while staying comfortable.

Answer:

A

Explanation:

I put high and got it right.

The most negative value can take before the amplifier saturates. Suppose, Consider a non-ideal op amp where the output can saturate. Hence, The most negative value of is 0.5 mV

The most negative value v2 can take before the amplifier saturates.Suppose, Consider a non-ideal op amp where the output can saturate.The open voltage gain is2*10 4 where,According to figure,

The negative output value is

v0 = -10V

We need to calculate the most negative value of  

Using given formula

v0 = -A(Vs)

Where, = output value

A = voltage gain

Put the value into the formula

-10 = -2 *10 4* Vs

vs = 10/2*10  4

Vs = 0.0005v

Vs = 0.5MV

Hence, The most negative value of  is 0.5 mV.

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The most negative value can take before the amplifier saturates. Suppose, Consider a non-ideal op amp where the output can saturate. Hence, The most negative value of is 0.5 mV

The most negative value v2 can take before the amplifier saturates. Suppose, Consider a non-ideal op amp where the output can saturate. open voltage gain is2*10 4 where, According to figure,

The negative output value is

v0 = -10V

We need to calculate the most negative value of  

Using given formula

v0 = -A(Vs)

Where, = output value

A = voltage gain

Put the value into the formula

-10 = -2 *10 4* Vs

vs = 10/2*10  4

Vs = 0.0005v

Vs = 0.5MV

Hence, The most negative value of  is 0.5 mV.

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The purification of a wide range of materials involves the use of distillation, a significant commercial procedure.

The purification of a wide range of materials involves the use of distillation, a significant commercial procedure. However, it would definitely be helpful to clarify the terms that describe the procedure and related qualities before we start a discussion of distillation.

Although you may be familiar with several of these terms, you might not be aware of their precise definitions. Let's start by outlining the procedure for changing a material from its condensed phase to its gas phase. This process is known as sublimation for solids and vaporization for liquids. Both procedures call for heat.

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Explanation:

Remember, to say a product is incorporated with aesthetic design implies that its overall appearance is designed to look beautiful to the eyes of the user/buyer. For example, a clothing company whose target market is mainly focused on women's clothing would need to take into consideration that certain colors like pink, blue, etc are attractive to women more than men. So they'll have to ensure the colors of their clothing are suitable to the needs of their target market.

The Universal Design process involves building products that can be used by a wide range of users at ease. For example, you may ask yourself: Is my product/service easily accesible to those with disabilities?

Other processes include;

Answer:

Space Rovers

Explanation:

The engineering advancement of the invention space rovers has changed space exploration tremendously. The first space rover ever to go out onto another planet was made by NASA and put on mars to learn more about the red planet and see if there where any plausible signs of past or maybe even present life. This mission was incredibly successful and for the first time in space exploration history, there was a spacecraft that you could move around that could with do the conditions of the planet for weeks, months, sometimes years at a time, moving around taking pictures and constantly collecting data. This was revolutionary for scientists, this way they could get copious amounts of information just on rover and not having to send multiple crafts only to die in the first few hours but sending back a relative amount of information. With rovers you can have them collect samples and bring the back to earth, not something  that could’ve been done without a human, until rovers. They have completely changed and improved collecting data from other planets and have been one of the most revolutionary inventions when it comes to space exploration.

This is what I put for the answer, hope it helps in some way.

Try to be as relax as possible.

Provide names of all parties involved.

Provide vehicle information and identification details.

Provide full names, address, registration numbers and insurance company details.

Explanation:

After a collision one may be confused, afraid and have no attention about the details that what happened because all the collision event happens in a short interval of time. So the first thing one should do during information exchange is to sit back and relax and be calm so that one can remind the things at some extent. After that provide all the details about injured people and the involved vehicles.

46. None of the given options match the value.

47. The answer is approximately 13.5 W. Option b.

48. None of the given options match the value.

49. None of the given options match the value.

50. The answer is approximately 3.16. Option c.

To solve the given questions, we can use the fin equation and the concept of effectiveness. Let's calculate the answers step by step:

46. The total heat transfer from the surface per meter length in the case of no fins can be calculated using the equation:

  Q = hAΔT

  Where:

  Q = Heat transfer rate

  h = Heat transfer coefficient

  A = Surface area

  ΔT = Temperature difference

  Q = 40 × (2πrL)

  ΔT = (180 - 25)

  Substituting the values:

  Q = 40 × (2 × 3.14 × 0.05 × 1)

  Q ≈ 100 W

  Therefore, the answer is approximately 100 W. None of the given options match this value.

47. The heat transfer from a single fin can be calculated using the equation:

  Q_fin = Q / (N × Efficiency)

  Where:

  Q_fin = Heat transfer from a single fin

  Q = Total heat transfer rate without fins

  N = Number of fins

  Efficiency = Fin efficiency

  Q_fin = 100 / ([(0.06 - 0.005) + 0.004] / 0.004)

  Q_fin ≈ 13.5 W

  Therefore, the answer is approximately 13.5 W. Option b matches this value.

48. The total heat transfer from the finned tube per meter length can be calculated using the equation:

  Q_total = Q_fin × N

  Where:

  Q_total = Total heat transfer rate with fins

  Q_fin = Heat transfer from a single fin

  N = Number of fins

  Q_total = 13.5 × [(0.05 - 0.006) / 0.004]

  Q_total ≈ 2295 W

  Therefore, the answer is approximately 2295 W. None of the given options match this value.

49. The increase in heat transfer from the tube per meter length can be calculated by subtracting the heat transfer rate without fins from the heat transfer rate with fins:

  Increase = Q_total - Q

  Increase = 2295 - 100

  Increase ≈ 2195 W

  Therefore, the answer is approximately 2195 W. None of the given options match this value.

50. The surface effectiveness for the finned surface can be calculated using the equation:

  Effectiveness = Q_total / (Q_fin × N)

  Effectiveness = 2295 / (13.5 × [(0.05 - 0.006) / 0.004])

  Effectiveness ≈ 3.16

  Therefore, the answer is approximately 3.16. Option c matches this value.

To summarize:

46. None of the given options match the value.

47. The answer is approximately 13.5 W. Option b.

48. None of the given options match the value.

49. None of the given options match the value.

50. The answer is approximately 3.16. Option c.

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Two things that environmental engineers concentrate on during green projects are fossil fuels and natural resources.

Environmental engineers are responsible for ensuring that there is little or no effect on the environment as a result of human activities.

Hence, two things that environmental engineers concentrate on during green projects are fossil fuels and natural resources.

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Answer:

thermal imaging camera can quickly identify hotspots in an image.

Explanation:

A bend is defined as a change in the shape of the part between the damaged and undamaged area that is smooth and continuous.

What is a kink?

A kink can be defined as a sharp bend with a small radius over a short distance.

So when any part is kinked it must be replaced without any doubt. A part is kinked if it just doesn't work on the repair.

What is a bend?

Unlike a kink, a bend can be restored. That is after a bend also  a part can be bought back to its original position.

When the part is straightened, it is returned to proper shape and state without any areas of permanent deformation.

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it is undesirable that all of the points should fall extremely near, or exactly on, the centerline of the control chart Because:

If a data point falls is said to outside the control limits, we can say that the process is said to be out of one's control and it is good that an investigation is done to ascertain and remove the cause or causes.

So, it is undesirable that all of the points should fall extremely near, or exactly on, the centerline of the control chart Because:

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You should search the zones to the left and right of your vehicle, as well as any areas directly in front of the intersection, such as crosswalks, bike lanes, and medians. Additionally, you should be aware of any oncoming traffic or pedestrians who may be crossing the intersection.

When approaching an intersection, it is important to pay attention to all of the potential hazards around you. First, you should search the zones to the left and right of your vehicle. This includes looking for oncoming traffic, pedestrians, or cyclists who may be crossing the intersection or entering the roadway. Additionally, you should be aware of any obstacles that may be directly in front of you, such as crosswalks, bicycle lanes, or medians. By taking the time to search all of these zones and be aware of your surroundings, you can increase your safety and the safety of others.

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Answer:

the factor of safety was used in the design of the cable is 2.6146

Explanation:

Given the data in the question;

Load on the main capable \(P_{initial\) = 2600000 lb

number of parallel wires n = 1470

Diameter d = 0.16 in

average ultimate strength \(S_{ultimate\) = 230000 psi

First we calculate the Load acting on each cable;

\(P_{initial\) = P × n

P = \(P_{initial\) / n

we substitute

P = 2600000 lb / 1470

P = 1768.70748 lb

Next we determine the working stress acting in a member;

\(S_{working\) = P/A

{ Area A = \(\frac{\pi }{4}\)d² }

\(S_{working\) = P / \(\frac{\pi }{4}\)d²

we substitute

\(S_{working\) = 1768.70748 / \(\frac{\pi }{4}\)(0.16)²

\(S_{working\) = 1768.70748 / 0.02010619298

\(S_{working\) = 87968.29 psi

Now we calculate the factor of safety F.S

F.S = \(S_{ultimate\) / \(S_{working\)

we substitute

F.S = 230000 psi / 87968.29 psi

F.S = 2.6145785 ≈ 2.6146

Therefore, the factor of safety was used in the design of the cable is 2.6146

The common characteristic of all material removal mechanisms in non-traditional machining processes is that they use a tool or electrode to remove material from the workpiece.

This can include processes such as laser cutting, electrochemical machining, electrical discharge machining, and waterjet cutting. These processes are often used when conventional machining methods are inadequate or inefficient, and they are able to achieve high levels of precision and accuracy.

The primary mechanism of material removal in Electron Beam Machining (EBM) is through thermal sputtering. This is a process in which incident electrons, accelerated by a high voltage, strike a surface and cause atoms or molecules to be ejected from the surface.

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The estimate of the amount of work accomplished is called volume load.

Volume load refers to the total amount of weight lifted in a workout session. It takes into account the number of sets, the number of repetitions, and the weight used. Volume load can be used as a measure of the amount of work accomplished. Volume load is also used to monitor progress over time.

In conclusion, the estimate of the amount of work accomplished is called volume load. Volume load is a measure of the amount of work done in a workout session. It can be used to monitor progress over time.

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Answer:

you can't eat your school computer or a pencil.

Humanistic perspective. A psychological standpoint that focusses on the originality of the individual and believe that human beings possess an innate inclination to improve and to confine their lives through the decisions they make. Sometimes named the "third force" in psychology.

Humanistic psychology is a philosophy that emphasizes looking at the whole individual and highlights concepts such as free will, self-efficacy, and self-actualization. Rather than focusing on dysfunction, humanistic psychology aims to help people fulfill their possibility and maximize their well-being.

The humanistic perspective on character emphasizes the individualized grades of optimal well-being and the use of creative potential to help others, as well as the relational conditions that promote those grades as the outcomes of healthy development.

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