A compressor delivers 2270 kg/min of water with an initial pressure of 12 psia to a final pressure of 40 psia. The diameter of the inlet pipe is 0.15 m and the diameter of the discharge pipe is 0.10 m. What is the work done by the compressor in KW? 5.52KW 6.54KW 7.64KW 8.12 KW

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 square feet coverage of a gallon of primer may vary depending on the quality of the primer and the porosity of the surface being primed. On average, a gallon of primer can cover approximately 200-300 square feet. However, it is always best to consult the manufacturer's instructions for the specific primer being used as it will provide a more accurate estimate of coverage.

Generally, when buying paint or primer, it is important to know the coverage area to ensure that you purchase enough to cover the entire surface adequately. Factors such as the number of coats, the thickness of the coat, and the method of application will all play a role in determining the coverage area. For example, using a roller instead of a brush may result in a more even application and, therefore, use less primer. Furthermore, it is important to keep in mind that using too little primer may result in uneven coverage and may not provide adequate protection against moisture and other environmental factors.

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Answer:

Explanation:

Understanding the business is important when designing a database because it enables the designer to align the database structure with the specific needs and requirements of the business. By comprehending the business processes, workflows, and data dependencies, the designer can create a database schema that accurately represents the real-world entities, relationships, and business rules. This alignment ensures that the database effectively supports the operations and goals of the business, leading to improved efficiency and productivity.

Furthermore, understanding the business helps in identifying and prioritizing the data to be stored in the database. By understanding the key information needed for decision-making and analysis, the designer can determine the essential data elements that should be included in the database. This ensures that the database captures and retains the critical information required by the business, facilitating accurate reporting, data analysis, and informed decision-making.

In summary, understanding the business is crucial for designing a database that is well-suited to the specific needs and requirements of the enterprise. It enables the designer to align the database structure with the business processes and data dependencies, and it helps in identifying and prioritizing the essential data to be stored. Ultimately, this understanding ensures that the database effectively supports the operations and goals of the business, contributing to its overall success.

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Answer:

It's to ensure a driver's safety.

Answer:

A

Explanation:

The false statement with respect to vent connectors is: The temperature of diluted exhaust products from conventional gas-fired furnaces is 500°F to 700°F.

The correct temperature range for diluted exhaust products from conventional gas-fired furnaces is typically lower than the range mentioned in option D. The exhaust products from gas-fired furnaces are usually within a temperature range of around 300°F to 500°F. This temperature range can vary depending on the specific furnace model and its operating conditions, but it is generally lower than 500°F to 700°F. It's important to ensure accurate information when dealing with temperature specifications and safety guidelines related to vent connectors and furnace exhaust systems.

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When a dielectric is inserted into a capacitor connected to a battery, the energy stored in the capacitor increases. This is because the electric field between the plates decreases due to the presence of the dielectric, which leads to an increase in capacitance and an increase in energy stored in the capacitor.

The capacitance is defined as the ability of a capacitor to store energy in the form of an electric charge, and it is directly proportional to the distance between the plates and inversely proportional to the dielectric constant of the medium between the plates.

The work done in the process of inserting a dielectric into a capacitor is given by the equation W = Fd, where W is the work done, F is the force required to insert the dielectric, and d is the distance over which the force is applied. The force required to insert the dielectric is proportional to the change in electric field between the plates, which in turn is proportional to the dielectric constant of the medium.

The energy stored in a capacitor connected to a battery increases when a dielectric is inserted, and the work done in the process depends on the dielectric constant of the medium.

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Answer:

Explanation:

From the case of well-stirred oil bath:

\(51=l+50m+n(50^{2})\rightarrow 51=l+50m+2500n\)

At the ice point, both of the thermometers show the same scale:

\(0 = l + m(0) + n(0^{2}) \rightarrow l = 0\)

At the steam point, again, both of the thermometers show the same scale:

\(100 = 0 + m(100)+n(100^{2}) \rightarrow 100 = 100m + 10000n \rightarrow 1 = m + 100n\)

By eliminating those equations, we find:

\(51=50(1-100n)+2500n \rightarrow 51=50-500n+2500n \rightarrow 1 = 2000n\)

so we can obtain that: \(n=\frac{1}{2000}=0.0005\) and \(m=1-100(0.0005)=1-0.05=0.95\)

Now, we have the complete description of the relation between A and B scale as: \(t_{A}=0.95t_{B}+0.0005t_{B}^{2}\)

So, for \(t_{A}=25^{0}C\):

\(25 = 0.95t_{B}+0.0005t_{B}^{2} \rightarrow 0.0005t_{B}^{2}+0.95t_{B}-25=0\)

\(t_{B}_{1,2}=\frac{-0.95\pm\sqrt{0.95^{2}-4(0.0005)(-25)}}{2(0.0005)}\approx-950\pm975\)

\(t_{B}_{1}=25^{0}C \vee t_{B}_{2}=-1925^{0}C\)

The hardware that I am using to take this course is a Laptop computer running on windows operating system.

When you send a query, like your previous message, your laptop's operating system breaks it into smaller units called packets. These packets contain parts of your message, destination address, and other metadata.

They're sent over the internet through your Internet Service Provider (ISP), which directs them through routers and switches. These network devices ensure packets take the most efficient path.

They reach the server where I'm hosted. The server processes your query, generates a response, divides it into packets, sends them back through the same process, and your laptop reassembles them to display my answer.

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Answer:

Sarah is a professional interior designer.

Therefore, Sarah carries the title of a _registered___ interior designer.

Explanation:

Some states require only the licensed designers to carry out interior designs, while some others allow both the licensed and unlicensed interior designers to carry on the work of interior designers.  In the states where only the licensed designers are allowed to use the title of interior designer, they are registered after passing the state-prescribed examinations and meeting some professional experience requirements. The most common exam is the National Council for Interior Design Qualification (NCIDQ) examination, which only bachelor degree holders in interior design are allowed to sit for.

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:

B is the answer.

Explanation:

Answer: It is power stroke

Answer:

  Research the company

Explanation:

It is a good idea to find out information about the company you are interviewing. Among other things, this will help you decide if you actually want to work for that company.

Telling your current boss can be risky to your job. A new outfit may be helpful for certain positions--especially those where manner of dress is important. Finishing school may or may not be an important requirement for the position you're seeking. Your company research will tell you.

Researching the company is one of the most important steps to take.

The statement Braking hard will help with the recovery from the skid is false.

Braking hard is not the appropriate action to recover from a skid.

In fact, braking hard can often exacerbate the skid and make it more difficult to regain control of the vehicle.

When a vehicle skids, it means that the tires have lost traction with the road surface.

In such a situation, sudden or excessive braking can cause the wheels to lock up, leading to further loss of control and potentially causing the vehicle to slide even more.

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Using the natural built-up pressure in a reservoir to extract crude oil is known as "primary" oil recovery.

In a typical oil reservoir, there is a layer of oil trapped between two layers of impermeable rock. When a well is drilled into the reservoir, the natural pressure within the reservoir forces the oil to the surface through the wellbore. This natural pressure is due to the weight of the overlying rock and fluids that have accumulated above the oil-bearing formation over millions of years. During primary oil recovery, the oil flows to the surface naturally due to this pressure. However, as the oil is produced, the pressure within the reservoir gradually decreases, reducing the flow rate of the oil. At this point, secondary or tertiary recovery methods may be used to increase the flow rate and recover more oil from the reservoir. Examples of secondary and tertiary oil recovery methods include water flooding, gas injection, and steam injection. These methods involve the injection of fluids or gases into the reservoir to maintain or increase the pressure within the reservoir, making it easier to extract the oil.

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Answer:

Dual-Mode Hybrid

Explanation:

The type of hybrid vehicle propelled by only an electric motor and does not require a traditional transmission to drive the wheels is known as "DUAL-MODE HYBRID."

Dual-Mode Hybrid is a type of Hybrid Electric Vehicle (HEV) which contains a separate generator consisting of rechargeable batteries. The engine ensures the wheels and the generator are moved; thereby, the electric motor and the batteries are fully powered.

A good example is a Toyota Prius, where during driving conditions, only the electric motor drives the wheels, in which the batteries supply the car with power.

Systems engineering plays a vital role in the design and operation of space systems, addressing the complex challenges of the space environment, mission requirements, reliability, and safety.

Systems engineering plays a crucial role in the design, development, and operation of space systems.

There are several aspects that are emphasized differently in the domain of space systems.

System Complexity: Space systems are highly complex due to the challenging environment they operate in and the intricate interdependencies among their components.

Mission Requirements: Space systems are designed to achieve specific mission objectives, such as Earth observation, communication, navigation, or exploration.

Reliability and Safety: Space systems operate in harsh and unforgiving environments, where repair or maintenance is often impossible. As a result, reliability and safety are critical considerations.

Launch and Operations: Launching a space system into orbit and managing its operations in space present unique challenges.

Spacecraft Subsystems: Space systems comprise numerous subsystems, such as propulsion, power, thermal control, communication, attitude determination and control, and payload.

Environmental Considerations: The space environment imposes unique challenges on systems engineering. Extreme temperatures, vacuum, radiation, micrometeoroids, and orbital debris pose risks to space systems.

Integration and Testing: Given the complexity and criticality of space systems, thorough integration and testing are essential.

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Answer:

percentage yield = 63%

Explanation:

The yield efficiency or percentage yield measure the amount of products that are formed from a given amount of reactant. For a percentage yield of 100, all the reactants are completely converted to product. Mathematically, the percentage yield is given by:

\(percentage\ yield = \frac{Actual\ yield}{expected\ yield} \times 100\\Actual\ yield = 10.08kg\\Expected\ yield= 16.00kg\\\\\therefore percentage\ yield = \frac{10.08}{16.00} \times 100 = 63 \%\)

A PFAS anchorage point for a 6-foot lanyard must be able to hold a minimum static load of 5,000 pounds.

PFAS stands for Personal Fall Arrest System, which is a type of fall protection equipment that is designed to protect workers from falls.
The 5,000-pound minimum static load requirement is based on the assumption that the PFAS will experience a shock load of 2,500 pounds in the event of a fall.

This shock load is due to the force of the fall and the weight of the worker, and it puts a significant amount of stress on the anchorage point. The 5,000-pound minimum static load ensures that the anchorage point can withstand this shock load without failing.
It's important to note that the 5,000-pound minimum static load requirement is a general guideline, and the actual load capacity of the anchorage point will depend on a variety of factors, including the type of anchorage point, the material it's made from, and the conditions of use.

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Answer:

4c4u4civ4j4

Explanation:

x24uu37z3x3uzu2

Answer:

Surface Parallelism When a surface is to be parallel to a datum plane, the feature control frame is connected by a leader to the surface, or to an extension line from the surface.

Explanation:

Code segment E can be used to replace /* missing implementation */ so that `findLastWord` will work as intended. In the `findLastWord` function, the goal is to find the word with the highest lexicographic order (i.e., the last word in alphabetical order). Let's analyze each code segment to determine which one correctly implements this logic.

A: This code segment is incorrect because `compareTo` expects a `String` argument, but `maxIndex` is an integer. Additionally, it compares the word with an index instead of comparing words directly.

B: This code segment is almost correct. However, the loop condition `k <= words.length` is incorrect because array indices start from 0. It should be `k < words.length`.

C: This code segment is incorrect because it returns the index of the word with the highest lexicographic order instead of the word itself.

D: This code segment is incorrect because it compares words using `compareTo` but assigns the index `k` to `maxWord` instead of the word itself.

E: This code segment is correct. It initializes `maxWord` with the first word in the array and iterates over the remaining words. It compares each word to `maxWord` using `compareTo` and updates `maxWord` if a word with a higher lexicographic order is found. Finally, it returns the word stored in `maxWord`, which will be the last word in alphabetical order. Therefore, code segment E is the correct choice to replace /* missing implementation */.

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Answer:

a) 53 MPa,  14.87 degree

b) 60.5 MPa  

Average shear = -7.5 MPa

Explanation:

Given

A = 45

B = -60

C = 30

a) stress P1 = (A+B)/2 + Sqrt ({(A-B)/2}^2 + C)

Substituting the given values, we get -

P1 = (45-60)/2 + Sqrt ({(45-(-60))/2}^2 + 30)

P1 = 53 MPa

Likewise P2 = (A+B)/2 - Sqrt ({(A-B)/2}^2 + C)

Substituting the given values, we get -

P1 = (45-60)/2 - Sqrt ({(45-(-60))/2}^2 + 30)

P1 = -68 MPa

Tan 2a = C/{(A-B)/2}

Tan 2a = 30/(45+60)/2

a = 14.87 degree

Principal stress

p1 = (45+60)/2 + (45-60)/2 cos 2a + 30 sin2a = 53 MPa

b) Shear stress in plane

Sqrt ({(45-(-60))/2}^2 + 30) = 60.5 MPa

Average = (45-(-60))/2 = -7.5 MPa

Prohibited areas contain airspace of defined dimensions within which the flight of aircraft is prohibited. Such areas are established for security or other reasons associated with the national welfare. These areas are published in the Federal Register and are depicted on aeronautical charts. The area is charted as a Prohibited Areas.

An aeronautical chart is a type of map that is used to guide the navigation of aircraft, much like a nautical chart or a road map does for watercraft or land vehicles.

These charts and other tools enable pilots to ascertain their location, a safe altitude, the best path to a destination, navigational aids along the way, alternate landing zones in the event of an in-flight emergency, and other helpful data like radio frequencies and airspace boundaries. For transoceanic travel, there are long-distance charts as well as charts for all land masses on Earth.

There are specific charts used for each stage of a flight, ranging from a map of a specific airport facility to an overview of the instrument routes covering an entire continent, and many different types in between.

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The maximum stress at the fixed end of a steel cantilever beam is 0.326 MPa with an uncertainty of 0.0033 MPa. This is determined by dividing the load (F) by the area of the beam, which is calculated by multiplying the length, width, and thickness of the beam.

The maximum stress at the fixed end of a steel cantilever beam is calculated by dividing the load (F) by the area of the beam. The load applied to the free end is 980 N with an uncertainty of 10 N. The beam is 100 mm long (l), 30 mm wide (w), and 10 mm thick (t). The area of the beam is calculated by multiplying the length by the width and thickness, which gives us 3000 mm2. Therefore, the maximum stress at the fixed end is 980 N / 3000 mm2 = 0.326 MPa. The uncertainty of the maximum stress can be calculated by taking the systematic error of 10 N divided by the area of the beam, which is 0.0033 MPa.

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Answer:

represnt

Explanation:

Critical load Fcr or buckling load is the value of load that causes the phenomenon of change from stable to unstable equilibrium state.

With that beign said, first it is neessary to calculate the moment of inercia about the x-axis:

\(Ix= \frac{db^3}{12}\\ Ix = \frac{2.(4)^3}{12} = 10.667in\)

Then it is necessary to calculate the moment of inercia about the y-axis:

\(Iy = \frac{db^3}{12}\\ Iy = \frac{4.(2)^3}{12} = 2.662in\)

Comparing both moments of inercia it is possible to assume that the minimun moment of inercia is the y-axis, so the minimun moment of inercia is 2662in.

And so, it is possible to calculate the critical load:

\(Pc\gamma = \frac{2046\pi ^2E.I}{L^2} \\Pc\gamma= \frac{2046.\pi ^2.(1,6.10^3.10^3).2662}{(10.12)^2} \\Pc\gamma= 5983,9db\)

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