If a polymer has a bandgap energy of 1. 8 ev, what color would its emission be?.

One type of infrastructure support that is not currently under consideration to keep sewer systems in cities from experiencing overflows is the implementation of green infrastructure. Green infrastructure refers to the use of natural systems such as permeable pavement, rain gardens, and green roofs to manage stormwater runoff. These natural systems help to absorb and filter rainwater, reducing the amount of water that enters the sewer system.

However, despite their effectiveness in preventing overflows, green infrastructure is often not considered due to various reasons.

One reason is the lack of awareness and understanding of the benefits of green infrastructure among city planners and policymakers. Many cities still rely heavily on traditional gray infrastructure, such as large pipes and storage tanks, to manage stormwater. This outdated approach may be seen as more reliable and familiar, even though it can be costly and less environmentally friendly.

Another reason is the perception that green infrastructure is not suitable for urban environments. There is a misconception that these natural systems require a significant amount of space, which may be limited in densely populated cities.

However, there are innovative approaches to implementing green infrastructure in urban areas, such as using green roofs on buildings or retrofitting existing infrastructure.

Additionally, the upfront costs of implementing green infrastructure can be a deterrent for some cities. While green infrastructure may be more cost-effective in the long run due to lower maintenance and operation costs, the initial investment required can be higher compared to traditional gray infrastructure.

This financial barrier may prevent cities from considering green infrastructure as an option.

Green infrastructure is not currently under consideration as a type of infrastructure support to prevent sewer system overflows in cities. This can be attributed to factors such as lack of awareness and understanding, misconceptions about its suitability for urban environments, and upfront costs.

However, promoting the benefits and exploring innovative approaches can help overcome these barriers and encourage the adoption of green infrastructure to mitigate overflows in sewer systems.

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Answer:

Following are the solution to the given question:

Explanation:

Line voltage:

\(V_L=\sqrt{3}V_{ph}=\sqrt{3}(120) \ v\)

Power supplied to the load:

\(P_{L}=\sqrt{3}V_{L}I_{L} \cos \phi\)

\(10\times 10^3=\sqrt{3}(120 \sqrt{3}) I_{L}\ (0.85)\\\\I_{L}= 32.68\ A\)

Check wye-connection, for the phase current:

\(I_{ph}=I_L= 32.68\ A\)

Therefore,

Phasor currents: \(32.68 \angle 0^{\circ} \ A \ ,\ 32.68 \angle 120^{\circ} \ A\ ,\ and\ 32.68 -\angle 120^{\circ} \ A\)  

Magnitude of the per-phase load impedance:

\(Z_{ph}=\frac{V_{ph}}{I_{ph}}=\frac{120}{32.68}=3.672 \ \Omega\)

Phase angle:

\(\phi = \cos^{-1} \ (0.85) =31.79^{\circ}\)

Please find the phasor diagram in the attached file.

Answer:

To reduce waste.

Explanation:

Answer:

Connect the test light in series with the negative post, and start pulling feed wires. The first to check is the heavy charging wire from the alternator. A bad or leaky diode in an alternator is a very common source of overnight battery drain. Connect wires one at a time to see what lead is drawing current.

If high-temperature sprinklers are used, the coverage area will be 4,000 sq. ft: False.

A sprinkler can be defined as a mechanical device with a lot of small holes that is typically attached to the end of a hose, in order to put off flames or fire by spraying water at the burning physical object or structure.

According to the report by the National Fire Protection Association, we can infer and logically deduce that it is false to state that the coverage area will be 4,000 square feet (3720square meters) when high-temperature sprinklers are used.

In conclusion, the coverage area per sprinkler head for areas with a high concentration of flammable materials (extra hazard 1 & 2) is 90 - 130 square feet.

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Explanation:

1. Ensure all circuits are de-energized before beginning work (29 CFR 1926.416(a)(3)).

2. Controls to be deactivated during the course of work on energized or de-energized

equipment or circuits must be tagged (29 CFR 1926.417(a)).

3. Employees must be instructed to recognize and avoid unsafe conditions associated with

their work (29 CFR 1926.21(b)(2)).

Answer:

communities of practice

Explanation:

Knowledge management systems often include communities of practice groups of employees who work together and learn from each other.

Answer:

First you have to separate real and imaginary parts of Tan(x+iy)=Tan(z)=sin(z)/cos(z)

sinz=sin(x+iy)=sinxcos(iy)+cosxsin(iy)=sinxcoshy-icosx sinhy

cosz=cos(x+iy)=cosxcos(iy)-sinxsin(iy)=cosxcoshy−isinxsinhy

Now if you plug in Tan(z) and simplify (it is easy!) you get

Tan(z)=(sin(2x)+isinh(2y))/(cos(2x)+cosh(2y))= A+iB.

This means that

A=sin(2x)/(cos(2x)+cosh(2y)) and B= sinh(2y)/(cos(2x)+cosh(2y))

Now,

A/B=sin(2x)/sinh(2y)

If any questions, let me know.

It has been shown that the definition of electric field strength E = Felectric/q0 is equivalent to the equation E = kCq/r2 for point charges.

The electric field is described as the electrical force per unit of charge that a small test charge would experience if it were located at the same location as the charge that is producing the electrical field. In equation form, the electric field strength (E) is given by

E = Felectric/q0

where Felectric is the electric force that a small test charge would experience when positioned near a source charge q0.

The electric field strength can also be expressed in terms of Coulomb's constant k, the source charge q, and the distance r from the source charge using the equation

E = kCq/r2

where C is the Coulomb unit of charge.It can be shown that the equation

E = Felectric/q0

is equivalent to the equation

E = kCq/r2 for point charges by making use of Coulomb's law.

Coulomb's law states that the electric force between two point charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

Mathematically, Coulomb's law is expressed as

F = kq1q2/r2

where F is the force, q1 and q2 are the point charges, k is Coulomb's constant, and r is the distance between the two charges.

To derive the electric field strength equation using Coulomb's law, first, divide both sides of Coulomb's law by the charge q0 to get

Felectric/q0 = kq0q1/r2.

Now, since q1 represents the source charge, substitute it for q0 to get

Felectric/q0 = kCq/r2

which is the same as the electric field strength equation

E = kCq/r2.

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Answer:

A demultiplexer (DEMUX) is a digital circuit that routes a single input line to one of several output lines. It can be implemented using OR gates.

Here's one way to make a 2-to-4 demultiplexer using OR gates:

Begin by connecting the input line to the input of the first OR gate.

Connect one of the select lines to the second input of the first OR gate.

Connect the output of the first OR gate to one of the outputs.

Connect the second select line to the second input of the second OR gate.

Connect the output of the first OR gate to one input of the second OR gate.

Connect the output of the second OR gate to the second output.

Repeat steps 4-6 for the remaining outputs.

By this way you can construct a demultiplexer using OR gates.

It's important to note that the number of select lines must be equal to the number of bits required to select the output. In this example, we used 2 select lines to control the 4 outputs, so we only needed 2 bits to select the output.

Gypsum is a construction material that is primarily formed through evaporation, making it an important resource in the construction industry.

The construction material that is primarily formed through evaporation is gypsum. Gypsum is a soft mineral that is composed of calcium sulfate dihydrate and is commonly used in construction for creating decorative elements, such as ceiling tiles and wall panels. Gypsum is formed when seawater evaporates from shallow areas, leaving behind deposits of calcium sulfate. Over time, these deposits become compacted and eventually form gypsum rock.

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The construction material that is primarily formed through evaporation is Gypsum. Option D is the answer.

Evaporative deposition is the method through which gypsum is created. The process begins with an input of water containing dissolved calcium and sulfate ions into a shallow water body. It becomes supersaturated as the water evaporates because of the rise in these ions' concentration. Small crystals of gypsum then develop as the particles precipitate out of the solution.

As a result of sedimentation, these crystals develop over time and gather near the water's bottom. As the sediment builds up, it is compacted and solidified to create gypsum rock. Finally, the gypsum deposits can be exposed or extracted through mining and geological processes. From thousands of years to millions of years, the complete process takes place.

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Answer:

b. False

Explanation:

A centimeter is a hundredth of a meter. This means 1/100 ,1 cm = 0.01 m

A kilo is 1000 grams.

The first answer is false because a hundredth isnot written well.

The second statement is false because the comparison given is of different units of measure. For distance is meters where as for weight is kilograms.

Answer:

  Technician B

Explanation:

In simplistic terms, the "hot wire" connects the load device to the source of electrical energy. The ground wire provides the return path for current from the load device to the energy source. In many circuits, the "ground wire" is at, near, or defined as "ground" potential (the actual potential of the Earth).

Technician A seems to be confused. Technician B is more correct.

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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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:

The given statement that "engineering controls are devices such as sharps containers and self-sheathing needles used to block or eliminate the sharp risk" is true.  

Engineering control devices protect workers by removing hazardous conditions or by placing a barrier between the hazard and the worker. Examples of engineering control devices include exhaust ventilation that captures and exits airborne emissions or machine guards that shields the worker.

It can be stated as engineering controls devices reduce or prevent hazards from coming into direct contact with workers. Therefore, the given statement is true because the devices such as sharps containers and self-sheathing needles to block or remove the sharp risk are examples of engineering control devices.

"

Complete question

engineering controls are devices such as self sheathing needles and sharps containers to block or eliminate the sharp risk.

True

False

"

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An internship would be a good option for a beginner UX designer who is looking for a short-term work opportunity with not a lot of responsibility.

Internships provide valuable work experience and the opportunity to learn from experienced professionals in the field. They also often have a set duration, which can be a good fit for someone who is not looking for a long-term commitment.

Additionally, internships typically come with less responsibility than entry-level jobs, which can be a good fit for someone who is just starting out in their career.

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The number of residual plots that you can view at one time is A. two plots.

Analysis of variance is a collection of statistical models and the estimation procedures that go with them that are used to analyze the differences between means. Ronald Fisher, a statistician, invented ANOVA.

ANOVA, which stands for Analysis of Variance, is a statistical test used to compare the means of multiple groups. ANOVA ("analysis of variance") compares the means of two or more independent groups to see if there is statistical evidence that the associated population means differ significantly.

In conclusion, the correct option is A.

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Answer:

False

Explanation:

Alternator produces alternating current  ....diodes convert this to direct current

Answer:

the equivalent resistance of the circuit decreases and the total current of the circuit increases. 

Explanation:

hope this helps

The person's height will be the dependent variable because it changes and varies depending on the person's age. For the independent variable, create an x-axis. In a scatter plot, the independent variable is often positioned near the bottom. The "x-axis" refers to this.

Spread Plot The graphs that show the association between two variables in a data set are called scatter plots. Either a Cartesian system or a two-dimensional plane can be used to display data points.

The independent variable or attribute is represented by the X-axis, and the dependent variable is plotted using the Y-axis.

Therefore, geom_jitter() function creates a scatter plot and then adds a small amount of random noise to each point in the plot to make the points easier to find.

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To determine whether you have a faulty alternator or voltage regulator in your farm tractor, you should first check the battery voltage.

A healthy battery should have a voltage of 12.6 volts or higher. If the voltage is lower than 12.6 volts, then you should inspect the alternator and voltage regulator for any signs of damage or wear.

Additionally, you can use a multi-meter to test the voltage output from the alternator and voltage regulator to determine if they are working correctly. If the voltage output is not within the correct range, then the alternator or voltage regulator may be faulty and need to be replaced.

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The paragraph explains how a C assignment statement is compiled assuming that variables and array information are stored in registers and memory locations.

The C assignment statement "9 = h + A[6]" is invalid syntax, as it attempts to assign a value to the constant 9.

It is likely that the intent was to assign the sum of the value in the variable h and the value of the element at index 6 of the array A to some other variable.

To do so, a valid variable name must be used on the left-hand side of the assignment operator. Assuming that variable is named result, the corrected statement would be "result = h + A[6];".

The sum of the value in the variable h and the value of the element at index 6 of the array A will be stored in the variable named result.

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Answer:

Is there supposed to be a picture...try asking question again

Polymers is the referred to the class of material which is generally considered to be the weakest at room temperature, offering the lowest elastic moduli and tensile strengths and is denoted as option B.

This refers to a type of compound which are long chained and are formed from smaller repeating chemical units known as monomers through the process which is referred to as polymerization

They are usually in the form of plastics or resins and have features such as lowest elastic moduli and tensile strengths thereby making it the most appropriate choice.

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The options incliude:

A.Metal

B.Polymer

C.Ceramics

D.Composites

Answer:

What is the probability of selecting the 4 of spade or black diamond from a deck of 52 playing cards?

a) 2/52

b) 4/52

c) 3/52

d) 1/5

Explanation:

Answer:

Shallow foundations, often called footings, are usually embedded about a metre or so into soil. ... Another common type of shallow foundation is the slab-on-grade foundation where the weight of the structure is transferred to the soil through a concrete slab placed at the surface.

Explanation:

Because I said so.

Answer:

1700 kg

Explanation:

Determine the total mass of the oil, m, by multiplying the density,

p= 850 kg/m3

to the volume, V = 2m3 or m=p x v.

m=pxv.

m= p x v = 850 kg / m3 x 2

m3 = 1700 kg

The repair order must detail why the vehicle is in for repairs or what the customer is complaining about. Note that this on the repair order is known as Problem Description.

A repair order is a document used in an automotive repair shop or service center to document the details of a repair job.

It contains information about the vehicle, the customer, the problem or reason for the repair, the work done, and the repair cost. It is used as a record of the work done and for billing and warranty purposes.

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