Draw the E-K diagam of GaAs and AlAs material showing the direct and indirect gap and mention which material is indirect and direct and why? (b) Make a comparison between alloying and doping

Based on the maximum capacity as a result of the pipe-laying operations, and the maximum capacity without obstruction to the four-lane dual carriageway, the mean speed of traffic in the bottleneck is -2.73km.

This can be found as:

= (Maximum restricted capacity - freeflowing rate) / (Kb - Ka)

= (1,100 - 1,500) / (209 - 62.5)

= -2.73 km/h

The rate that the queue outside the bottleneck grows is:

= Free flowing rate - (mean speed of traffic x ka)

= 1,500 - (-2.73 x 62.5)

= 1,670 veh/hour

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Answer:

my friend here justin

Explanation:

hes already taken

The ownership of data in a social network is a complex issue, but generally, users retain ownership of their own data and media. However, social networks often have terms of service agreements that grant them certain rights to use and distribute user data.

In most cases, users maintain ownership of the data and media they provide on social networks. This means that the content they upload, such as photos, videos, and posts, is considered their intellectual property. Users have the right to control and manage their own data, including deciding who can access it and how it can be used.

However, it's important to note that social networks typically have terms of service agreements that users must agree to when creating an account. These agreements often include clauses that grant the social network certain rights to use and distribute user data within the platform. This may include displaying user content to other users, analyzing user behavior for targeted advertising, or even sharing anonymized data with third parties for research purposes.

Ultimately, the specifics of data ownership can vary depending on the social network and its policies. It's crucial for users to carefully review the terms of service and privacy policies of the social network they are using to understand how their data will be handled.

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Answer:

I HAVE NO CLUEEEE

Explanation:

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Answer:

I think its B

Explanation:

Im sorry if im wrong

Answer:

Increase in stroke volume brings about increase in pump rate .the relationship between them is linearly proportional.

Explanation:

Increase in stroke volume brings about increase in pump rate .the relationship between them is linearly proportional.

The rate at which blood is been pumped by the heart depends on the Stroke volume as well as heart rate. The stroke volume gives the quantity of blood that is been pumped by the heart Everytime it beats.

One of the important factor that determine the Cardiac output is Stroke volume. And injection fraction is calculated as (stroke volume/

end-diastolic volume)

Critical reflection enhances the evaluation and improvement of heuristics and engineered/design solutions by identifying their effectiveness, biases, and areas for enhancement.

Critical reflection relates to heuristics and engineered/design solutions by providing a means to evaluate and improve upon them. Through critical reflection, one can assess the effectiveness and limitations of heuristics, which are mental shortcuts used for problem-solving, and engineered/design solutions, which are deliberate and planned problem-solving approaches.

It allows for a deeper understanding of their impact, potential biases, and areas for improvement, ultimately guiding the refinement and development of more effective problem-solving strategies.

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Answer:

Burj Khalifa is located in dubai UAE at over 828m

Explanation:

828 metres

Answer:

The Burji Khalifa, known as the Burj Dubai prior to its inauguration in 2010, is a skyscraper in Dubai, United Arab Emirates. With a total hight of 829.8 m and a roof hight of 828 m, the Burji Khalifa has been the tallest structure and building in the world since its topping out in 2009.

Answer:

Q ≅ 1.53 m³/s

Explanation:

From the given information:

The flow rate of the orifice is:

\(v = c_v \sqrt{2gh}\)

\(v = 0.90 \times \sqrt{2*9.81 * 10}\)

where;

\(Q = c_d \times \sqrt{2gh} \times A\); &

\(c_d = c_c \times c_v\)

∴

\(Q = c_c \times c_v \sqrt{2gh} \times \dfrac{\pi}{4}\times d^2\)

\(Q = 0.90 \times 0.62 \sqrt{2*9.81*10} \times \dfrac{\pi}{4}\times 0.5^2\)

\(Q = 0.558 \times 14.00714104 \times 0.1963495408\)

Q ≅ 1.53 m³/s

Both technicians are correct: Technician A is correct that the current trend is to use remote power steering fluid reservoirs, and Technician B is correct that using a remote reservoir allows for a more compact power steering pump assembly.Remote power steering fluid reservoirs have become a trend due to their efficiency.

The power steering pump's function is to create pressure, so the power steering system works effectively. Therefore, it is necessary to avoid overheating of the fluid. The coolant is released from the pump into the rack and pinion steering or the gear steering box. The function of the fluid reservoir is to store and provide adequate fluid for the power steering pump.To facilitate the task, modern vehicles have remote fluid reservoirs. These reservoirs are used to store power steering fluid remotely. They're usually located in the fender or engine compartment.

The fluid is stored in a separate location, making the power steering system more compact. By removing the fluid from the pump housing, the chances of fluid foaming are reduced. Foaming of the fluid causes cavitation, which causes damage to the pump and reduces performance. Therefore, Technician B is right that using a remote reservoir allows for a more compact power steering pump assembly.

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Answer: Most master’s degree programs will take an average of two years from start to finish – about half of the time it takes to earn your bachelor’s degree. While bachelor’s degree programs involve many introductory and general education courses, a master’s degree curriculum is all about the subject area you selected to study.

Explanation: Hope this was helpful

the use of scientific or technical methods to identify, gather, analyze, and evaluate evidence for matters of criminal and civil law or regulation

The application of natural sciences to legal issues is known as forensic science. In actual practice, forensic science makes use of ideas and procedures from physics, chemistry, biology, and other branches of science. The appraisal of physical evidence includes its identification, individualization, and recognition by forensic scientists.

The Roman term forensis, which means public, to the forum or public conversation; argumentative, rhetorical, belonging to dispute or discussion, is where the word "forensic" originates. The phrase "related to, employed in, or fit for a court of law" is a valid definition of forensic in today's society.

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Some crawl space foundations are completely sealed without any vents because it is believed to be more energy-efficient and helps prevent moisture from entering the crawl space. However, this can also lead to the buildup of harmful gases, such as radon, and make it difficult to regulate temperature and humidity levels.

What are crawl space foundations?

Crawl space foundations are a type of foundation commonly used in residential and small commercial construction. They are built by creating a shallow space between the ground and the bottom of the first floor of the building. This space is typically about two to four feet in height and is called a crawl space because it is only large enough for someone to crawl through.

The foundation walls of a crawl space are typically made of concrete or masonry, and they rest on footings that are placed below the frost line to prevent damage from soil movement. The floor of the crawl space may be a poured concrete slab or simply a dirt floor.

Crawl space foundations have several advantages over other types of foundations. They are typically less expensive to build than full basements or slab-on-grade foundations, and they provide easier access to plumbing and electrical systems that may need to be installed or repaired. Crawl spaces can also be used for storage in some cases.

Therefore, it is important to properly insulate and ventilate sealed crawl spaces to ensure proper air circulation and prevent potential health hazards. Additionally, proper drainage systems should be installed to prevent water buildup and damage to the foundation.

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Answer:

The golfer is at greater risk.

Explanation:

The golfer is holding a metal club. Metal is a good conductor for electricity (lightning), meaning electrons can pass through easily. Her caddy is at lesser risk because she is holding a plastic handled umbrella. Plastic is an insulator, which does not easily allow the movement of electrons to pass.

Determining the tension in each cable and the components of reaction at d needed to support the load is a complex process that requires careful consideration of various factors. It is important to use appropriate mathematical methods and to take into account all relevant variables in order to arrive at an accurate solution.

This is a complex question that requires a long answer. In order to determine the tension in each cable and the components of reaction at d needed to support the load, we need to take into account various factors such as the weight of the load, the angles of the cables, and the properties of the materials used in the cables.

Firstly, we need to identify the load and the cables that are supporting it. Once we have identified these, we need to draw a free body diagram and apply equilibrium equations to solve for the tension in each cable and the components of reaction at d. This involves breaking down the forces acting on the load and cables into their horizontal and vertical components, and then using these components to solve for the unknowns.
It is important to note that the tension in each cable will depend on the angle at which it is pulling and the weight of the load it is supporting. The components of reaction at d will depend on the forces acting on the structure as a whole and the properties of the materials used in the cables.

Answer:

(a) 12 seconds (b) t = 8.31 seconds (c) 10µ A (d) V = 20 V (e) V =0

Explanation:

Solution

Given that:

C = 6 µ which is = 6 * 10^ ⁻6

R = 2 MΩ, which is = 2 * 10^ 6

ε = 20 V

(a) When it is at the time constant we have the following:

λ = CR

= 6 * 10^ ⁻6 * 2 * 10^ 6

λ =12 seconds

(b) We solve for the half life of the circuit which is given below:

d₀ = d₀ [ 1- e ^ ⁺t/CR

d = decay mode]

d₀/2 =  d₀  1- e ^ ⁺t/12

2^⁻1 = e ^ ⁺t/12

Thus

t/12 ln 2

t = 12 * ln 2

t = 12 * 0.693

t = 8.31 seconds

(c) We find the current at t = 0

So,

I = d₀/dt

I = d₀/dt e ^ ⁺t/CR

= CE/CR e ^ ⁺t/CR

E/R e ^ ⁺t/CR

Thus,

at t = 0

I  E/R = 20/  2 * 10^ 6

= 10µ A

(d) We find the voltage across the capacitor at t = 0 which is shown below:

V = IR

= 10 * 10^ ⁻6 * 2 * 10^ 6

V = 20 V

(e)  We solve for he voltage across the resistor.

At t = 0

I = 0

V =0

Total heat rejected by compressor = Heat rejected by compression + Heat rejected by intercooler

Heat rejected by compression :

Q = (y - n)/(y - 1) • W

Q = (y - n)/(y - 1) • R(T2 - T1)/(n - 1) ... (i)

Heat rejected by intercooler :

Q = Cp(T2 - T1) ... (ii)

Sum of (i) and (ii) :

Q = (i) + (ii)

Q = (y - n)/(y - 1) • R(T2 - T1)/(n - 1) + Cp(T2 - T1) ... (iii)

Remember that :

R = Cp - Cv

y = Cp/Cv

So :

R = yCv - Cv

R = Cv(y - 1) ... (iv)

Now, subtitute (iv) to (iii) :

Q = (y - n)/(y - 1) • Cv(y - 1)(T2 - T1)/(n - 1) + Cp(T2 - T1)

Q = (y - n)/(n - 1) • Cv(T2 - T1) + Cp(T2 - T1)

Q = [Cp + Cv • (y - n)/(n - 1)] • (T2 - T1)

Hope this help

How to Clean Hand Tools:

Cleaning Power Tools:

Answer:

a)  358.8 KJ/kg

b)  0.0977  KJ/K- kg

c)  83.28%

Explanation:

N2 at 300 k. ( use the properties of N2 at 300 k (T1) )

Cp = 1.04 KJ/kg-k , Cv = 0.743 KJ/Kgk ,  R = 0.1297 KJ/kgk , y = 1.4 ,

Given data:

T2 = 645 k

P1 = 1 bar , P2 = 10.5 bar

a)Determine the work input in KJ/Kg of N2 flowing

Winput = h2 - h1  = Cp( T2 - T1 ) = 1.04 ( 645 - 300 ) = 358.8 KJ/kg

b) Determine the rate of entropy in KJ/K- kg   of N2 flowing

Rate of entropy ( Δs ) = Cp*InT2/T1 - R*In P2/P1

                                    = 1.04 * In (645/300) - 0.1297 * In ( 10.5 / 1 )

                                    = 0.0977  KJ/K- kg

c) Determine isentropic compressor efficiency

Isentropic compressor efficiency = 83.28%

calculated using the relation below

( h'2 - h1 ) / ( h2 - h1 ) = ( T'2 - T1 ) / ( T2 - T1 )

where T'2 = 587.314

Answer:

True

Explanation:

Those are the exact uses of a resistor

A ball bearing is rotating at 1200 revolutions per minute and operates at a radial load of 50% of its dynamic load rating. The expected lifetime in hours at a reliability level of 90% is 615.6 hours.

The dynamic load rating (C) is the quantity of radial load that a bearing can bear without exhibiting undue wear or creating excessive stress. It is represented in N or Lbf (pound force).When a bearing is subjected to a certain load, the amount of time it can last is referred to as bearing life.

This value is obtained by dividing L10 by the angular velocity in radians per second.L10h = L10 / ωL10h = (271.56 * d^2)^(1/3) / 20L10h = (6.79 * d^2)^(1/3)The expected lifetime in hours at a reliability level of 90% for the given values is 615.6 hours.

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(key%10) + (key/10)  of these Hash Functions yields a perfect hash with a 10 element array for the following values

The exact same number of elements from Y are assigned to each element of X via a mathematical function from a set X to a set Y. Two Persian mathematicians named Al-Biruni and Sharaf al-Din al-Tusi are credited with providing the first known treatment of the idea of function. Functions were first used to describe the idealized relationship between two varying quantities. For instance, time affects a planet's position. Historical development of the concept coincided with the invention of infinitesimal calculus at the end of the 17th century, and the functions taken into account were differentiable until the 19th century.

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Answer:

Freon Refrigerant

Explanation:

As of January 1, 2020 Freon Refrigerant can no longer be manufactured or imported to the United States. This is because R-22 (the principal component in Freon) has been banned in the states. Along with other greenhouse gasses, due to their contribution to damaging Earth’s ozone layer and global warming.

hope this helps:)

Answer:

Freon Refrigerant Is Now Banned in the US

As of January 1, 2020, a once very popular air conditioning refrigerant can no longer be made in or imported into the United States.

Please give me brainliest -  you get 25% as well! I swear!

Answer:

8×10^-19 seconds

Explanation:

i=∆q/∆t

=> ∆t=∆q/i=50×1.6×10^-19/10=8×10^-19(s)

In developing a solution, it is essential to be creative in the use of tools from class. If you use category as the primary disaggregation, you would have 33 branches from the starting point.

Primary disaggregation is the first stage of creating a report. Data is disaggregated or separated into categories in this stage. It is the method of breaking down data to show the underlying structure of the dataset by grouping it into various classes.

A branch represents a grouping of data points that share common characteristics. A branching diagram or a hierarchical organization is created as a visual representation of a hierarchy or a classification scheme.

A total of 33 branches will be generated if you use the category as the primary disaggregation.

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Answer:

a) civil engineering.

Explanation:

Civil engineering is a professional engineering program that deals with the construction, design, and maintenance of all the natural and man-made environments including dams, buildings, railways, and roads.

Civil engineering is the branch of engineering that is the practice not restricted because civil engineer is not restricted to academic profession but practice in designing and construction can make someone a professional civil engineer.

Hence, the correct answer is "a)."

The branch of engineering in which the practice is not restricted is; Civil Engineering

             Civil Engineering is a branch of engineering that deals with the design, construction and maintenance of the physical and naturally built environment.

These physically and naturally built environment includes; houses, roads, bridges, airports, railways, canals, dams, sewage systems, pipelines e.t.c

             Now, mechanical engineering involves design, production, operation and maintenance of mechanical systems or machineries.

             In conclusion, we see that the mechanical branch of engineering is restricted to machinery unlike civil engineering that is not restricted to only buildings but also includes pipelines, bridges, roads, railways, dams, sewage systems e.t.c

             Finally, the nuclear engineering branch is also restricted to only nuclear fission and fusion applications.

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Answer:

Hi, there your answer is hydraulics

Explanation:

Motorcycles require a full lane width to operate safely.

Motorcycles, like any other vehicle on the road, need a full lane width to ensure safe operation. Motorcycles have the same rights and responsibilities as other vehicles, and they require sufficient space within a lane to maneuver, maintain stability, and respond to potential hazards.

The full lane width allows motorcycles to position themselves appropriately within the lane, maintain a safe distance from other vehicles, and have enough space for maneuvering to avoid obstacles, potholes, or debris on the road. It also provides enough room for the motorcycle to lean during turns, which is necessary for proper control and stability.

Motorcycles should not be forced to share a lane with another vehicle or be squeezed into a narrower space. It is essential for other motorists to be aware of and respect the space requirements of motorcycles, allowing them to occupy a full lane when necessary for their safety.

By providing motorcycles with the full lane width they require, it helps to enhance their visibility, reduces the risk of collisions, and promotes overall road safety for both motorcyclists and other road users.

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