In a steam power plant, the temperature of the burning fuel is 1100 °C, and cooling water is available at 15 °C. Steam leaving the boiler is at 2 MPa and 700 °C, and the condenser produces a saturated liquid at 50 kPa. The steam lines are well insulated. The turbine and pump operate reversibly and adiabatically. Some of the mechanical work generated by the turbine is used to drive the pump.
a. Draw a T-s diagram of this cycle.
b. What is the net work obtained in the cycle per kg steam generated in the boiler?
c. How much heat is discarded in the condenser per kg steam generated in the boiler?
d. What fraction of the work generated by the turbine is used to operate the pump?
e. How much heat is absorbed in the boiler per kg steam generated?

Answers

Answer 1

Answer:

b. 1655.7 KJ/kg ( net work produced )

c. 2324.86 KJ/kg

d. 0.25539 --- 25.5%

e. 3980.63 KJ/kg

Explanation:

Given:-

Condenser exit parameters:

 P1 = 50 KPa  , saturated liquid

Boiler exit / Turbine exit parameters:

P3 = 2 MPa

T3 = 1100°C

Solution:-

- Adiabatic and reversible processes for pump and turbine are to be applied

- Assume changes in elevation heads within the turbomachinery to be negligible.

- Assume steady state conditions for fluid flow and the use of property tables will be employed.

Isentropic compression of water in pump:

 Pump inlet conditions :                       Pump exit to Boiler pressure:

  P1 = 50 KPa, sat liquid                         P2 = P3 = 2 MPa

  h1 = 340.54 KJ/kg                               s2 = s1 = 1.0912 KJ/kg.K

  s1 =  1.0912 KJ/kg.K                              h2 = 908.47 KJ/kg

- Apply energy balance for the pump and determine the work input ( Win ) required by the pump:

                     Win = h2 - h1

                     Win = 908.47 - 340.54

                     Win = 567.93 KJ/kg

 

Isentropic expansion of steam in turbine:

 Turbine inlet conditions :                  Turbine exit to condenser pressure:

  P3 = 2MPa, T3 = 1100°C                      P4 = P1 = 50 kPa

  h3 = 4889.1 KJ/kg                        s4 = s3 = 8.7842 KJ/kg.K  .. superheated

  s3 =  8.7842 KJ/kg.K                   h4 = hg = 2665.4 KJ/kg

- Apply energy balance for the turbine and determine the work output ( Wout ) produced by the turbine:

                     Wout = h3 - h4

                     Wout = 4889.1 - 2665.4

                     Wout = 2223.7 KJ/kg

- The net work-output obtained from the cycle ( W-net ) is governed by the isentropic processes of pump and turbine.

                  W_net = Wout - Win

                  W_net = 2223.7 -  567.93

                  W_net = 1655.77 KJ/kg   ... Answer

- The fraction of work generated by turbine is used to operate the pump. The a portion of Wout is used to drive the motor of the pump. The pump draws ( Win ) amount of work from pump. The ratio of work extracted from turbine ( n ) would be:

                 n = Win / Wout

                 n = 567.93 / 2223.7

                 n = 0.25539  ... Answer ( 25.5 % ) of work is used by pump

- The amount of heat loss in the condenser ( consider reversible process ). Apply heat balance for the condenser, using turbine exit and condenser exit conditions:

                Ql = h4 - h1

                Ql = 2665.4 - 340.54

                Ql = 2324.86 KJ/kg ... Answer

- The amount of heat gained by pressurized water in boiler ( consider reversible process ). Apply heat balance for the boiler, using pump exit and boiler exit conditions:

                Qh = h3 - h2

                Qh = 4889.1 - 908.47

                Qh = 3980.63 KJ/kg ... Answer

               


Related Questions

You will be using the fictional manufacturing facility Acme Automotive Parts (AAP) throughout the course. AAP manufactures several support parts for new automobiles as a small supplier to Nissan, Honda, and Volkswagen facilities in the United States. Their processes include shipping/receiving, hydraulic presses, metal working lines, robotic welding stations, hand-welding stations in rework areas, two small paint booths, a quality assurance/quality control (QA/QC) laboratory, and a final inspection area.

For this unit please answer the following question:

Determine what information you would use to anticipate health hazards that might be present in each of the eight areas of the AAP plant. State where you might find the information you need.

Answers

To anticipate health hazards in each of the eight areas of the AAP plant, the following information could be used:

1. Shipping/Receiving:

Type of materials being received and shippedPossible exposure to hazardous chemicals, dust, and fumesPossible exposure to heavy machinery and equipmentInformation could be found in Material Safety Data Sheets (MSDS) for the materials, as well as through workplace observations and assessments.

2. Hydraulic Presses:

Possible exposure to hydraulic fluids and associated fumesPossible exposure to high pressure and loud noise levelsInformation could be found in MSDS for hydraulic fluids and through workplace assessments and monitoring.

3. Metal Working Lines:

Possible exposure to metal dust, fumes, and particlesPossible exposure to high noise levelsPossible exposure to sharp edges and hot surfacesInformation could be found through workplace assessments and monitoring, as well as through MSDS for any chemicals used in the metal working process.

4. Robotic Welding Stations:

Possible exposure to welding fumes, dust, and particlesPossible exposure to high noise levelsPossible exposure to high heat and bright lightInformation could be found through workplace assessments and monitoring, as well as through MSDS for any chemicals used in the welding process.

5. Hand-Welding Stations in Rework Areas:

Same hazards as in robotic welding stationsPossible exposure to sparks and hot surfacesInformation could be found through workplace assessments and monitoring, as well as through MSDS for any chemicals used in the welding process.

6. Small Paint Booths:

Possible exposure to paint fumes and particulate matterPossible exposure to high noise levelsInformation could be found through workplace assessments and monitoring, as well as through MSDS for the paint materials.

7. QA/QC Laboratory:

Possible exposure to chemicals and hazardous materials used in testing and analysisPossible exposure to high noise levels from laboratory equipmentInformation could be found through workplace assessments and monitoring, as well as through MSDS for the chemicals and hazardous materials used in the laboratory.

8. Final Inspection Area:

Possible exposure to dust and fumes from various manufacturing processesPossible exposure to high noise levelsInformation could be found through workplace assessments and monitoring, as well as through MSDS for any chemicals used in the final inspection process.

To anticipate health hazards in each area of Acme Automotive Parts (AAP) manufacturing facility, the following information would be relevant.

What are the information that are relevant in this case?

1. Shipping/Receiving: Material Safety Data Sheets (MSDS) for chemicals received, potential for heavy lifting injuries, and risks associated with forklift operations.

2. Hydraulic Presses and Metal Working Lines: MSDS for lubricants and coolants, risks of crush injuries, and exposure to metal fumes.

3. Robotic and Hand-Welding Stations: MSDS for welding materials, welding fume exposure, and risk of burns.

4. Paint Booths: MSDS for paints and coatings, potential for volatile organic compounds (VOCs) exposure, and respiratory hazards.

5. QA/QC Laboratory: MSDS for chemicals used in testing, potential for chemical exposure, and ergonomic risks.

6. Final Inspection Area: Ergonomic risks associated with repetitive tasks, MSDS for any chemicals used, and general safety precautions.

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A principle of iterative development is to implement the high-risk components of the system first. this approach best falls into what kind of development paradigm?

Answers

A principle of iterative development exists to execute the high-risk components of the system first. this approach best descends into ​Use-case-driven development.

What is principle of iterative development?

Iterative development exists as a software development approach that supports the development of a system incrementally. The process builds in common and frequent cycles for feedback from stakeholders established on reactions by end users to the working, although incomplete, system. Iterative software development suggests building the product step by step, which permits for the identification and correction of defects during the earlier stages, to avoid their downward flow into further processes.

One of the key elements of the Unified Process is its usage of use cases as a driving force for development. The phrase use case driven guides to the fact that the project team uses the use cases to navigate all development work, from initial gathering and negotiation of requirements through code.

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here you can find my "english language" practice test. thanks in advance to solve that.
***Rewrite the sentences correct form of either infinitive or ing form without losing the meaning of the given sentences.

1) No matter how hard you tried, you will not convince Sarah. -Its no use Sarah.
2) The kids cant wait to go on holiday. (look forward to) -The kids on holiday.
3) He decided he would go on a business trip in september rather than in may. (choose) - He on a business trip in september.
4)They made me study hard when i was at university. I was at university.
5) I went to my local bank about getting a loan. (view) I went to my local bank a loan.

Answers

1) No matter how hard you try, Sarah will not be persuaded.

2) The kids are excited to go on vacation.

3. He opted to travel for business in September as opposed to May.

4) They pushed me work hard on my studies while I was in college.

5) I went to my neighbourhood bank to ask about obtaining a loan.

Note: Number 5's corrected sentence was puzzling. I assumed that asking about loans was the intended meaning. If you would like more information so that I can understand what you meant, please let me know.

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In the chlorination of 4-bromoacetanilide, the actual electrophile is
a. Cl2
b. HCl
c. NaClO3
d. Cl-

Answers

In the chlorination of 4-bromoacetanilide, the actual electrophile is chlorine gas (Cl2). Hence the correct answer is a.) Cl2.

What is the mechanism of this chemical reaction of chlorination?

An electrophile is a species that accepts electrons in a chemical reaction, and in this case, chlorine gas acts as the electrophile by accepting electrons from the 4-bromoacetanilide to form the chlorinated product.

The reaction mechanism involves the nucleophilic substitution of bromine by chlorine. The chlorine molecule (Cl2) is converted into a chlorine ion (Cl+) by accepting an electron from the 4-bromoacetanilide molecule, which acts as a nucleophile by providing a pair of electrons to form the covalent bond with chlorine.

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The no-load current of a transformer is 4.0 A at 0.25 p.f. when supplied at 250-V, 50 Hz. The number of turns on the primary winding is 200. Calculate the core loss component​

Answers

The core loss component​ is 250W.

What is core loss?

The term core loss refers to the total energy lost in the production of heat. Core loss is the loss due to the changing magnetization of the magnetic core, which is the sum of hysteresis loss and eddy current loss.

Core losses have two main causes ohmic or Joule heating caused by eddy currents induced by a changing magnetic field in a conducting medium, and losses due to cyclic reversals of magnetization in ferromagnetic materials, which are proportional to the area of ​​the magnet. field hysteresis loop. Core loss is often measured using the Epstein frame method, which includes a primary and secondary coil.

therefore , by using this formula core loss can be calculated as

W =\(V_{1} I_{0}\)cosФ₀

= 250x 4x 0.25

= 250W.

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M3.10. Find Current If I_1 = 40 mA, R_4 = 1 kΩ, R_5 = 7 kΩ, R_6 = 4 kΩ, R_7 = 7 kΩ, R_8 = 1 kΩ. The values of resistors R_2 and R_3 are unknown. Using a voltmeter, it is found that V_5 = 28 V across R_5. Find the current, I_6, flowing through R_6.

Answers

The objective is to find the current flowing through resistor R_6 (I_6), given the values of resistors R_4, R_5, R_6, R_7, and R_8, as well as the current flowing through resistor R_1 (I_1) and the voltage across resistor R_5 (V_5).

To find the current flowing through resistor R_6, we need to use Kirchhoff's Current Law (KCL) to solve for the unknown currents in the circuit. First, we can use Ohm's Law to find the voltage across resistor R_7, which is equal to V_7 = I_1 * R_7. Next, we can use KCL to find the total current flowing into node A, which is equal to I_A = I_1 + I_3, where I_3 is the current flowing through resistors R_2 and R_3. Since the values of resistors R_2 and R_3 are unknown, we can use the voltage across resistor R_5 and the known resistances to find the current flowing through resistor R_5, which is equal to I_5 = V_5 / R_5. Using KCL again, we can find the current flowing through resistor R_4, which is equal to I_4 = I_A - I_5. Finally, we can use Ohm's Law to find the voltage across resistor R_6, which is equal to V_6 = I_6 * R_6. Using KCL one last time, we can find the current flowing through resistor R_6, which is equal to I_6 = (V_7 - V_6) / R_8.

To summarize, the current flowing through resistor R_6 can be found by using Kirchhoff's Current Law and Ohm's Law to solve for the unknown currents and voltages in the circuit. The final equation for the current flowing through resistor R_6 is I_6 = (V_7 - V_6) / R_8.

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Feature Engineering
When would binning be an appropriate feature engineering step?
a. When we want to create defined groups from a continuous feature
b. When we want to transform categorical features into continuous features
c. When we want to remove low-quality features
d. When we want to create a new feature by combining existing ones

Answers

The appropriate feature engineering step for binning would be:

a. When we want to create defined groups from a continuous feature.

Binning is a useful technique in feature engineering when we want to convert a continuous feature into discrete or categorical groups. It involves dividing the range of values of a continuous feature into bins or intervals and assigning each value to a corresponding bin. This allows us to create defined groups or categories based on the values of the continuous feature.

Binning can be beneficial in various scenarios. For instance, it can help simplify complex data patterns, handle outliers or noise, and capture non-linear relationships between the feature and the target variable. Binning can also be used to address issues related to model complexity, data sparsity, or limited sample sizes.

By transforming a continuous feature into discrete groups, binning can enable models to capture patterns and make predictions based on the created categories. It allows for a more interpretable representation of the data and can improve the performance of certain machine learning algorithms, especially those that work better with categorical or ordinal data.

In summary, binning is an appropriate feature engineering step when we want to create defined groups or categories from a continuous feature. It can help simplify complex data patterns, handle outliers, and capture non-linear relationships, ultimately enhancing the modeling and prediction capabilities of machine learning algorithms.

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What action does a release train engineer take prior to an upcoming program increment (pi) planning meeting?

Answers

Prior to an upcoming Program Increment (PI) planning meeting, a Release Train Engineer (RTE) takes several important actions. These actions include: 1. Preparing the agenda: The RTE is responsible for creating the agenda for the PI planning meeting.

This includes determining the topics to be discussed, setting the timeframes for each agenda item, and ensuring that all necessary stakeholders are included.

2. Coordinating with stakeholders: The RTE collaborates with various stakeholders, such as Product Managers, Product Owners, and Scrum Masters, to gather their inputs and align their expectations for the PI planning meeting. This ensures that all relevant parties are on the same page and have a shared understanding of the upcoming goals and priorities.

3. Communicating with the Agile Release Train (ART): The RTE communicates important information about the PI planning meeting to the ART, which consists of multiple Agile teams working towards a common goal. This involves providing updates on the meeting schedule, expectations, and any changes or adjustments that need to be made.

4. Preparing the PI objectives and metrics: The RTE works with the Product Managers and Product Owners to define the objectives and key performance indicators (KPIs) for the upcoming PI. These objectives and metrics help guide the planning process and ensure that the teams are aligned towards achieving the desired outcomes.

5. Facilitating the meeting: During the PI planning meeting, the RTE acts as the facilitator, ensuring that the meeting runs smoothly and all necessary discussions take place. They help to resolve conflicts, manage time, and ensure that the teams are focused on the goals and priorities defined for the PI.

By taking these actions, the Release Train Engineer helps to ensure a successful PI planning meeting, where the Agile teams can collaboratively plan and align their efforts for the upcoming Program Increment.

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Describe the first case where the power of synthesis was used to solve design problems.

Answers

The first case where the power of synthesis was applied was in Chile when they had to put 100 families in houses around 40m².

It should be noted that the power of architecture is the fact that it can synthesize a complex entry to a problem.

Chilean architect Alejandro used this in building more than several houses for the poorest communities in Chile. His rigorous and innovative design approach used a social framework that laid a precedent within the profession.

During this period in Chile, a normal middle-class home was about 80m² but he built his in 40m² and it was a good home that managed the resources that were available.

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A single-threaded 25-mm power screw hasa pitch of 5 mm. The frictional diameter of the collar is 45 mm. The max load onvertical direction of the screw is5kN. The collar has a coefficients of friction of0.06, and he threads hasa coefficients of friction of0.09. Find the overall efficiency and the torque to "raise" and "lower" the load.

Answers

Answer:

torque to raise the load = 16.411 Nm

torque to lower the load = 8.40 Nm

overall efficiency = 0.24

Explanation:

Given:

max load on vertical direction of the screw = Force = F = 5kN

frictional  diameter of the collar = 45 mm

Diameter = 25 mm

length of pitch = 5 mm

coefficient of friction for thread µ  = 0.09

coefficient of friction for collar µ\(_{c}\) = 0.06

To find:

torque to "raise" the load

torque to and "lower"

overall efficiency

Solution:

Compute torque to raise the load:

\(T_{R} = \frac{ Fd_{m}}{2} (\frac{L+(\pi ud_{m}) }{\pi d_{m}-uL }) +\frac{Fu_{c} d_{c} }{2}\)

where

\(T_{R}\) is the torque

F is the load

\(d_{m}\) is diameter of thread

\(d_{c}\) is diameter of collar

L is the thread pitch distance

µ is coefficient of friction for thread

µ\(_{c}\)  is coefficient of friction for collar

Putting the values in above formula:

\(T_{R}\) = 5(25) / 2 [5+ (π(0.09)(25) / π(25)-0.09(5)] + 5(0.06)(45) / 2

    = 125/2 [5 + (3.14)(0.09)(25)/ 3.14(25)-0.45] + 13.5/2

    = 62.5 [(5 + 7.065) / 78.5 - 0.45] + 6.75

    = 62.5 [12.065 / 78.05 ] + 6.75

    = 62.5 (0.15458) + 6.75

    = 9.66125 + 6.75

    = 16.41125

\(T_{R}\) = 16.411 Nm

Compute torque to lower the load:

\(T_{L} = \frac{ Fd_{m}}{2} (\frac{(\pi ud_{m}) - L }{\pi d_{m}-uL }) +\frac{Fu_{c} d_{c} }{2}\)

     = 5(25) / 2 [ (π(0.09)(25) - L / π(25)-0.09(5) ] + 5(0.06)(45) / 2

     = 125/2 [ ((3.14)(0.09)(25) - 5) / 3.14(25)-0.45 ] + 13.5/2

     = 62.5 [ (7.065 - 5) / 78.5 - 0.45 ] + 6.75

    = 62.5 [ 2.065 / 78.05 ] + 6.75

     = 62.5 (0.026457) + 6.75

     = 1.6535625 + 6.75

     = 8.40 Nm

Since the torque required to lower the the load is positive indicating that an effort is applied to lower the load, Hence the thread is self locking.

Compute overall efficiency:

overall efficiency = F(L) / 2π \(T_{R}\)

                             = 5(5) / 2(3.14)( 16.411)

                             = 25/ 103.06108

overall efficiency = 0.24

Training is a way for employers to provide
to enable employees to protect themselves and others from injuries

Answers

Answer:

Tools.

Explanation:

The Occupational Safety and Health Administration (OSHA) is a federal agency saddled with the responsibility of assuring and ensuring safe and healthy working conditions for employees by setting and enforcing standards, providing education, trainings and assistance to various organizations.

According to the Occupational Safety and Health Administration (OSHA), trainings on the adoption and application of safety precautions (tools) such as wearing a personal protective equipment e.g masks (respirators), ear plugs, safety boots, gloves, helmet, etc. are very important and are essentially to be used by employees (workers) while working in a hazard prone environment or industries. Therefore, all employers of labor are required to provide tools and ensure that their employees properly use those tools, as well as abide by other safety precautions and standards.

Hence, training is a way for employers to provide tools to enable employees to protect themselves and others from injuries.

Your experience about a help you rendered to a needy one or family

Answers

An experience about a help that you rendered to a needy one can be written to show how the person was actually needy. Perhaps, they required financial help or a place to call their home. Next, you will state the specific way in which you helped. perhaps by providing financial help. State waht you learned from the experience.

How to write the essay

To write an essay about a help you rendered to a needy perosn or family memeber, begin by mentioning who the family member was. Perhaps, he or she was your sibling, parent, or extended relative.

Next specify how you relly helped them. Perhaps giving them mney you have been saving for something else. Finally, mention how they responded to your kindness.

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A network has three independent file servers, each with 90 percent reliability. The probability that the network will be functioning correctly (at least one server is working) at a given time is:

Answers

Answer:

The correct answer is "99.9%".

Explanation:

According to the information given in the question,

\(P(1 \ fail) = 0.1\)

The probability of all fail will be:

\(P(all \ fail) = (0.1)^3\)

                  \(=0.001\)

hence,

\(P(not \ all \ fail)= 1-P(all \ fail)\)

                        \(=0.999\)

                        \(=99.9\) (%)

Thus the above is the right answer.

Find the moment of inertia ix of particle a with respect to the x axis (that is, if the x axis is the axis of rotation), the moment of inertia iy of particle a with respect to the y axis, and the moment of inertia iz of particle a with respect to the z axis (the axis that passes through the origin perpendicular to both the x and y axes).
express your answers in terms of m and r separated by commas.
Activate to select the appropriates template from the following choices. Operate up and down arrow for selection and press enter to choose the input value typeActivate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type ix , iy , iz

Answers

The moment of inertia ix of particle a with respect to the x-axis is given by:  ix = m * (r²), where m is the mass of particle a and r is the distance of the particle from the x-axis.

The moment of inertia iy of particle a with respect to the y-axis is given by:
iy = m * (r²), where m is the mass of particle a and r is the distance of the particle from the y-axis.
The moment of inertia iz of particle a with respect to the z-axis is given by:
iz = m * (r²), where m is the mass of particle a and r is the distance of the particle from the z-axis.
The input value for all three moments of inertia calculations is the same: the distance of the particle from the respective axis of rotation.
To find the moments of inertia (I_x, I_y, and I_z) of particle A with respect to the x, y, and z axes, we can use the following formulas:
I_x = m * (y² + z²)
I_y = m * (x² + z²)
I_z = m * (x² + y²)
Here, m is the mass of the particle, and x, y, and z are the coordinates of the particle with respect to the axes.
Expressing the answers in terms of m and r (assuming r represents the distance from the origin to the particle):
I_x = m *r² - m * x²
I_y = m * r² - m * y²
I_z = m * r² - m * z²

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What is 90 to the power of 46

Answers

Answer:Just multiply 90 by itself 46 times

Explanation:

do it

What are the disadvantages of Mechanical Systems

Answers

Mechanical systems have some limitations which can pose challenges in terms of efficiency, maintenance and durability.

What are the specific drawbacks of mechanical systems?

Mechanical systems have inherent disadvantages as they tend to be less energy-efficient compared to newer technologies because they rely on mechanical processes that may generate friction and heat, leading to energy loss.

This systems require regular maintenance to ensure they continue to operate effectively and any malfunction can result in significant downtime and repair costs. They are also prone to wear and tear over time which can lead to reduced performance.

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sin x +√3 coax= √2

Answers

Answer:

The two values of x are 2n*pi + pi/12 and 2n*pi -5pi/12

Explanation:

The given equation is

Sin x +√3 Cosx= √2

Upon dividing the equation by 2 we get

 \(\frac{1}{2}Sinx + \frac{\sqrt{3} }{2}Cosx = \frac{\sqrt{2} }{2}\)

Sin(\(\frac{pi}{6}\))*Sinx + Cos(\(\frac{pi}{6}\))*Cosx = \(\frac{1}{\sqrt{2} }\)

This makes the formula of

CosACosB + SinASinB = Cos(A-B)

 Cos(x-\(\frac{pi}{6}\)) = \(\frac{1}{\sqrt{2} }\)

cos(x- pi/6) = cos(pi/4)

upon writing the general equation we get

x-pi/6 = 2n*pi ± pi/4

x = 2n*pi ± pi/4 -pi/6

so we will have two solutions

x = 2n*pi + pi/4 -pi/6

  = 2n*pi + pi/12

and

x = 2n*pi - pi/4 -pi/6

  = 2n*pi -5pi/12

Therefore the two values of x are 2n*pi + pi/12 and 2n*pi -5pi/12.

The gravitational force exerted on a solid object is 5N. When the object is suspended from a spring scale and submerged in water, the scale reads 3.50 N. Find the density of the object. ​

Answers

The density of the object is 3333.33 kg/m³. The density of an object is a measure of how heavy it is for a given size, i.e. the mass of material per unit volume.

What is gravitational force?

Gravity, also known as gravitational force, pulls objects with mass toward each other. We frequently consider the force of gravity from Earth. This force is responsible for keeping your body on the ground. Any object with mass, on the other hand, exerts a gravitational force on all other objects with mass.

Calculation of density of object?

Density: This can be defined as the ratio of the mass of a body to its volume.

The unit of density is kg/m³.

From Archimedes principle,

R.d = W/U = D/D'

Where R.d = relative density, W = weight of the object in air, u = upthrust in water, D = Density of the object, D' = Density of water.

W/U = D/D'

making D the subject of the equation

D = D'(W/U).......................... Equation 1

Given: W = 5.0 N, U = 5.0 -3.5 = 1.5 N, D' = 1000 kg/m³

U = lost in weight = weight in air - weight in water

Substitute into equation 1

D = 1000(5/1.5)

D = 3333.33 kg/m³

Thus the density of the object = 3333.33 kg/m³

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help protect the lower legs and feet from heat hazards like molten metal and welding sparks

Answers

Answer:

i think its called leggings thats wut my shop teacher told me

Explanation:

Leggings protect the lower legs and feet from heat hazards such as molten metal or welding sparks.

Describe the role of nadh and fadh2 in production of atp for biologic work. is this reaction directly coupled from initial substrates?

Answers

NADH and FADH2 are two electron carriers that are used in the electron transport chain of cellular respiration to produce ATP.

These molecules play a critical role in the production of ATP by transferring electrons to the electron transport chain to generate an electrochemical gradient.

The gradient is then used to drive the phosphorylation of ADP to ATP by ATP synthase.

The role of NADH and FADH2 in the production of ATP for biological work is described in more than 100 words below.

NADH and FADH2 are the two electron carriers that are used in the electron transport chain of cellular respiration to produce ATP.

They both play critical roles in the process of ATP production.

NADH carries electrons to the electron transport chain through its association with the enzyme complex NADH dehydrogenase.

This electron transport chain is responsible for the formation of a proton gradient across the inner mitochondrial membrane.

Both NADH and FADH2 are critical to the production of ATP in biological systems, as they provide the electrons that are necessary to drive the electron transport chain.

Without these electron carriers, the electrochemical gradient would not be established, and the phosphorylation of ADP to ATP would not occur.

This reaction is directly coupled from initial substrates because the ATP production process is tightly regulated and dependent on the electron transport chain's functioning.

In summary, NADH and FADH2 play critical roles in the production of ATP for biological work by transferring electrons to the electron transport chain,

which drives the phosphorylation of ADP to ATP by ATP synthase.

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So I am going to do online school till I graduate and I have horrible internet. i only get about 3 quarters of each class I take so I miss most of it. WHAT DO I DO. my mom said she will never let me go back to a brick-and-mortar school.

Answers

If you are struggling to attend the entirety of your online class, I would consider getting in touch with your teacher, telling your situation, and asking them to help you in whatever way possible. Many teachers may be willing to explain the contents of the lesson through email or office hours. A guidance counselor, if available, may also be willing to assist you by talking to teachers for you if they refuse to cooperate. It may also be helpful to talk to your parents and explain to them that you are worried about your grades declining if you are to continue studying from home. They may understand that while this alternative works for some, it does not benefit you.


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Give an example of one technology that is well matched to the needs of the environment, and one technology that is not.

Answers

Answer:

oh god... i have no idea lm.ao

Explanation:

"
Introduce The Helix, Dublin. Introduce the building and the
hall/halls in it in detail. Explain its importance for the city and
country, its architectural and acoustic features.

Answers

The Helix, located in Dublin, is an iconic building that serves as a cultural and entertainment hub for the city and the country.

It is a stunning architectural marvel with remarkable acoustic features that enhance the experience of performances held within its halls.

The building itself is a visually striking structure, designed by the renowned architect Arthur Gibney. It consists of multiple interconnected halls, each with its unique purpose and characteristics. The Helix is situated on the campus of Dublin City University, making it easily accessible to both students and the general public.

One of the main highlights of The Helix is its main hall, known as The Mahony Hall. This grand auditorium has a seating capacity of over 1,200 and boasts exceptional acoustics, making it ideal for orchestral performances, theater productions, and other large-scale events. The Mahony Hall features state-of-the-art sound systems and advanced lighting capabilities, creating a captivating atmosphere for both performers and audiences.

Another notable space within The Helix is The Space, a versatile multi-purpose venue that can accommodate various events, including conferences, exhibitions, and smaller-scale performances. The Space is characterized by its flexible layout and innovative design, allowing for seamless adaptation to different event requirements.

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A nutrunner on the engine assembly line has been faululing for low torque. (A nutrunner is an automated machine that automatically torques bolts to a specified condition.) When the fault odcurs, the line stops until someone can investigate or correct the issue. This has been a problem for the past two weeks, and all employees on the assembly line are having to work overtime each day to make up for the lost time from the nutrunner issues. Please explain and visualize the process you would take to solve or improve this problem.

Answers

A nutrunner on the engine assembly line has been failing for low torque. process includes identifying the root cause of the fault, and optimizing the nut runner's performance.

The first step would be to investigate the cause of the low torque issue in the nut runner. This may involve examining the machine, reviewing maintenance records, and gathering data on when and how the fault occurs. Once the root cause is identified, corrective actions can be taken. This may include repairing or replacing faulty components, recalibrating the nut runner, or updating software/firmware.

To prevent future occurrences, implementing a preventive maintenance program is crucial. Regular inspections, scheduled maintenance tasks, and performance testing can help identify and address potential issues before they lead to line stoppages. Additionally, providing thorough training to operators and maintenance staff on nutrunner operation, maintenance procedures, and troubleshooting techniques can contribute to quicker resolution of faults and reduce downtime.

Continuous monitoring of the nutrunner's performance is essential to ensure it operates within specified tolerances. This can be done through real-time data collection and analysis, including torque measurement and trend analysis. By closely monitoring the nutrunner's performance, any deviations or anomalies can be detected early, allowing for proactive interventions.

Overall, a systematic approach that combines investigation, preventive maintenance, employee training, and continuous monitoring can help solve the problem of the faulty nutrunner and improve the efficiency and productivity of the assembly line.

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An electric motor runs at 600 r/min when driving a load requiring a torque of 200 N m. Ifthe motor input is 15 kW, calculate the efficiency of the motor and the heat lost by the motor perminute, assuming its temperature to remain constant

Answers

The efficiency of the motor is 80%.

The heat lost by the motor per minute is 7.5 kW.

Here are the calculations:

The output power of the motor is given by:

P_o = τ * ω

where τ is the torque and ω is the angular velocity.

P_o = 200 N m * (2π * 600 r/min) / 60 s/min = 6000 W

The efficiency of the motor is given by:

η = P_o / P_i

where P_i is the input power.

η = 6000 W / 15 kW = 0.8

The heat lost by the motor per minute is given by:

Q = P_i - P_o

Q = 15 kW - 6000 W = 7.5 kW

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Suppose a contract states that the designer should bear the responsibility if substantial differences were found between the design drawings and the reality. What type of disagreement may happen due to this statement? Select one:
a. Disagreement about the definition of concepts and terminology
b. Disagreement about irrelevant facts
c. Disagreement about unknown facts
d. Disagreement about the definition of facts​

Answers

Answer:

C.) Disagreement about unknown facts


Escribe dos gemplos de los cambios de conducta que
adquiere el trabajador
al momento de capacitarse.

Answers

Aprendizajes del buen vivir ya que al compartir con la comunidad y te desarrollas, tu desarrollas otra manera de pensar y adquieres el aprendizaje del buen vivir con todos sin excepción alguna

Además el aprendizaje de experimentar compartir con otras personas que no son tu familia, eso hará que desarrolles el aprendizaje de tus cualidades y en este caso sería la cualidad de la imparcialidad

How many flip-flop values are complemented in an 8-bit binary ripple counter to reach the next count value after: 0110111 and 01010110?

Answers

Answer:

- Four (4) flip-flop values will complemented

- one (1) flip-flop value will complemented

Explanation:

To find how many flip flop number of bits complemented, we just need to figure out what the next count in the sequence is and find how many bits have changed.

taking a look at the a) 00110111

we need to just 1 to the value,

so

00110111 +  0000001  = 00111000        

So here, only the first four bits are complemented.

Therefore Four (4) flip-flop values will complemented

Next

b) 01010110

we also add 1 to the value

01010110  + 00000001  = 01010111

only the first bit is complemented.

Therefore one (1) flip-flop value will complemented

What are three ways to own your own business

Answers

Answer:

home,public,or private

Explanation:

How do I create a run chart?

Answers

One of the simple ways to create a run chart is:

Open Microsoft Excel. You should see a blank worksheet with grid lines.Across the top row, (start with box A1), enter headings for the type of information you will enter into your run chart: Time Unit, Numerator, Denominator, Rate/Percentage. Enter in the time period and corresponding numerator and denominator data into the columns below your headingsSelect cell B2 (the border should light up blue)Type a forward slash: /Select cell C2 (it should light up green)Type a closed parenthesis: )Type a star (hold the SHIFT and 8 keys down at the same time): *Type the number 1000: 1000The whole equation should look like this: =(B2/C2)*1000Hit the “Enter” key. You will see a number with decimals appear in cell D2. Select the information you want to include in your run chart. This is usually the time unit and rate/percentage, which in this example, would be month and 30 day readmission rate.Click on the “Insert” tab, Select the “Line” graph option, then click on the “Line with Markers” boxA run chart should appear on the screen

What is a Run Chart?

This refers to the line chart that is plotted over time and displays observed data in a time sequence.

Hence, we can see that the simple tutorial on how to create a run chart with the use of an Excel Spreadsheet is given above.

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The one solution is x=___, y = ____ and z = _____ (Simplify your answers.) B. There are Infinitely many solutions. If z is allowed to be any real number, then x =____ dan y =_____ (Type expressions using z as the variable.) C. There is no solution PLEASE HELP! thank you so much! :)Which of the following can form a crosssection?A a point and a triangleB a plane and a coneC a circle and a squareD a line and a Juan purchases an annuity for 3890 dollars that will make 19 annual payments, the first to come in one year. If the effective rate of interest is 10.8 percent, how much is each annual payment? Consider a hypothetical world consisting of only threecountries: Hungary, Australia, and Italy. Each country producesgrain. Hungary is a small economy compared to Australia and Italyand thus cannot influence foreign prices. 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