Define NO ACTION with UPDATE when declaring foreign keys.

Answer:

PEER establishes clear performance metrics, it serves consumer needs, and it covers all aspects of energy system performance.

Explanation:

on edg. just did it

Answer:

Answer:

C. It likely was less accurate than computer results.

Explanation:

While Katherine Johnson's calculations were extremely precise, they were done by hand using paper and pencil, without the aid of modern computers. This means that they were more prone to human error than modern computer results, which are calculated using digital algorithms and software designed specifically for accuracy and reliability. Additionally, modern computing is much faster and can handle larger and more complex calculations than Johnson's manual methods.

Answer: Kristin is currently modifying a newly discovered plastic material to work on a new lightweight lacrosse stick.

Explanation:

The main function of a materials engineer is to develop, study and test materials that are used on order to make different products.

Material engineer solve problems in other engineering fields, like electrical, aerospace, civil, mechanical, chemical, and nuclear.

From the information given in the question, the correct option is "Kristin is currently modifying a newly discovered plastic material to work on a new lightweight lacrosse stick."

Answer:

nice

Explanation:

You add up the individual resistances to determine the total overall resistance of several resistors connected in this manner.The formula used for this is as follows:Total R = R1 plus R2 plus R3 and so on

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Modern water treatment is still considered modern as water treatment processes are constantly evolving and improving to provide better quality water.

Municipal water treatment processes go through multiple stages to ensure safe drinking water. The treatment process typically involves the following components: Coagulation and flocculation: In this stage, chemicals such as alum are added to the water. This causes impurities to clump together and form larger particles, which are then removed through filtration.

Sedimentation: The water is allowed to sit undisturbed to allow the larger particles to settle at the bottom of the tank. Filtration: Water is passed through various filters that remove any remaining impurities, including bacteria, viruses, and chemicals. Disinfection: Chlorine or other disinfectants are added to the water to kill any remaining bacteria or viruses before it is sent to the distribution system.

The potential for disinfectant byproducts to form when disinfectants react with natural organic matter4. The potential for microplastics to enter water sources due to inadequate filtration. It is important to continue to improve and adapt modern water treatment processes to ensure the provision of clean, safe drinking water to communities around the world.

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The 2022 Titan XD's tow/haul mode is designed to provide more control when hauling or towing heavy loads by adjusting the transmission shift points and engine response.

This model is specifically calibrated to handle heavy loads and allows the vehicle to accelerate and decelerate smoothly while also reducing unnecessary shifting. Additionally, the tow/haul mode helps to reduce the strain on the brakes by downshifting the transmission when descending steep grades.

Overall, the tow/haul mode provides a more stable and confident towing or hauling experience, making it easier and safer to handle heavy loads.

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Answer:

The answer is "583.042533 MPa".

Explanation:

Solve the following for the real state strain 1:

\(\varepsilon_{T}=\In \frac{I_{il}}{I_{01}}\)

Solve the following for the real stress and pressure for the stable.\(\sigma_{r1}=K(\varepsilon_{r1})^{n}\)

\(K=\frac{\sigma_{r1}}{[\In \frac{I_{il}}{I_{01}}]^n}\)

Solve the following for the true state stress and stress2.

\(\sigma_{r2}=K(\varepsilon_{r2})^n\)

     \(=\frac{\sigma_{r1}}{[\In \frac{I_{il}}{I_{01}}]^n} \times [\In \frac{I_{i2}}{I_{02}}]^n\\\\=\frac{399 \ MPa}{[In \frac{54.4}{47.7}]^{0.2}} \times [In \frac{57.8}{47.7}]^{0.2}\\\\ =\frac{399 \ MPa}{[ In (1.14046122)]^{0.2}} \times [In (1.21174004)]^{0.2}\\\\ =\frac{399 \ MPa}{[ In (1.02663509)]} \times [In 1.03915873]\\\\=\frac{399 \ MPa}{0.0114161042} \times 0.0166818905\\\\= 399 \ MPa \times 1.46125948\\\\=583.042533\ \ MPa\)

Answer:

  4.5 m/s = 16.2 km/h

Explanation:

The speed is the ratio of distance to time:

  speed = (180 m)/(40 s) = 4.5 m/s

Answer:

final temperature = 26.5°

Explanation:

Initial volume of water is 1 x 1 x 1 = 1 \(m^{3}\)

Initial temperature of water = 20° C

Density of water = 1000 kg/\(m^{3}\)

volume of copper block = 0.46 x 0.46 x 0.46 = 0.097 \(m^{3}\)

Initial temperature of copper block = 100° C

Density of copper = 8960 kg/\(m^{3}\)

Final volume of water = 1 - 0.097 = 0.903 \(m^{3}\)

Assumptions:

mass of water remaining in the tank will be density x volume = 1000 x 0.903 = 903 kg

specific heat capacity of water c = 4186 J/K-kg

heat content of water left Hw = mcT = 903 x 4186 x 20 = 75.59 Mega-joules

mass of copper will be density x volume = 8960 x 0.097 = 869.12 kg

specific heat capacity of copper is 385 J/K-kg

heat content of copper Hc = mcT = 869.12 x 385 x 100 = 33.46 Mega-joules

total heat in the system = 75.59 + 33.46 = 109.05 Mega-joules

this heat will be distributed in the entire system

heat energy of water within the system = mcT

where T is the final temperature

= 903 x 4186 x T = 3779958T

for copper, heat will be

mcT = 869.12 x 385 = 334611.2T

these component heats will sum up to the final heat of the system, i.e

3779958T + 334611.2T = 109.05 x \(10^{6}\)

4114569.2T = 109.05 x \(10^{6}\)

final temperature T = (109.05 x \(10^{6}\))/4114569.2 = 26.5°

Answer:

There are three common methods of charging a battery; constant voltage, constant current and a combination of constant voltage/constant current with or without a smart charging circuit.

Constant voltage allows the full current of the charger to flow into the battery until the power supply reaches its pre-set voltage.  The current will then taper down to a minimum value once that voltage level is reached.  The battery can be left connected to the charger until ready for use and will remain at that “float voltage”, trickle charging to compensate for normal battery self-discharge.

Constant current is a simple form of charging batteries, with the current level set at approximately 10% of the maximum battery rating.  Charge times are relatively long with the disadvantage that the battery may overheat if it is over-charged, leading to premature battery replacement.  This method is suitable for Ni-MH type of batteries.  The battery must be disconnected, or a timer function used once charged.

Constant voltage / constant current (CVCC) is a combination of the above two methods.  The charger limits the amount of current to a pre-set level until the battery reaches a pre-set voltage level.  The current then reduces as the battery becomes fully charged.  The lead acid battery uses the constant current constant voltage (CC/CV) charge method. A regulated current raises the terminal voltage until the upper charge voltage limit is reached, at which point the current drops due to saturation.

Answer:

False

Explanation:

A source of constant voltage is referred to as a DC voltage, and a source of periodic, time-varying voltage is referred to as an AC voltage.

The average voltage is equal to (9 + 6)/2 (15/2) = 7.5. 20 mA Equals 20 x current 80 hours is equal to 80 x 60 x 60, or 288000 seconds. In the event that the current is considered to be constant, the energy supplied is calculated as the product of the voltage across, the current delivered, and the duration of the delivery. Energy provided by the battery is equal to 7.5 × 20 x 288000 = 43200 J. 43.2 kJ of energy. It follows that there is no potential difference between them at 6-v if the battery is deemed dead when it reaches that voltage. The capacity of a flashlight battery is calculated as the sum of the supplied current and the delivery time. capacity is equal to 20 mA x 80 hr, or 1600 mAh.

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Answer:

Patterns may cloud the vision of the design process and send the engineer off track.

Explanation:

Engineers use a cyclical process and must stay on track during this process. A key point to an engineer is being able to have the ability to use creative and critical thinking.

Answer:

Patterns tend to impose a prescribed way of thinking that will limit possible solutions.

Explanation:

While patterns help scientists and mathematicians solve problems, engineers should avoid obvious patterns. These patterns tend to lock in a prescribed way of thinking that will limit possible solutions. While making observations is helpful, don't force them into categories. Watch for observations that are unexpected, and compare and contrast all information before deciding on a final solution.

Answer:

Executive Summary

Explanation:

It is Executive Summary because I used process of elimination. Constraints are set backs. Project objectives are the goals that you want to achieve. Project development cycle are basically the steps that will be used.

False. Optical discs store data using tiny pits and lands created by a laser, not burned. The laser beam alters the reflective properties of the disc's surface to encode the data.

Optical discs, such as CDs, DVDs, and Blu-ray discs, are created with a reflective layer and a protective layer on top. To store data on an optical disc, a laser beam is used to create microscopic pits and lands on the reflective layer. The laser focuses on specific areas of the disc, heating them to change their optical properties. The areas heated by the laser become the pits, while the unheated areas remain as lands.

When the disc is read, a laser beam is directed onto the surface, and a sensor detects the changes in reflection caused by the pits and lands. The sensor translates these changes into digital data that can be interpreted by a device, such as a CD or DVD player.

The pits and lands on an optical disc are arranged in a spiral track or concentric circles, forming a continuous sequence of data. By varying the length and spacing of the pits and lands, different patterns are created to represent the encoded data. This allows optical discs to store various types of information, including audio, video, and computer data.

Hence, optical discs use lasers to create pits and lands on a reflective surface, rather than burning the data onto the disc. This technique enables the discs to store and retrieve data accurately and reliably.

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Answer:

I think it is D.service manual

Explanation:

Because it is the vehicle identification

Answer:

int()

Explanation:

float() is using decimals, so that can't be it, like float(input( "how much does this cost?"))

print() is used to print something, not a user asking, like print("hello")

string() means like a whole, like string( I am good)

By elimination, int() is correct.

Hope this helps!

The shock wave angle of a supersonic aircraft refers to the angle formed between the shock wave and the direction of flight. As the Mach number of the aircraft increases, the shock wave angle changes in response to the increased air pressure and temperature surrounding the aircraft.
Option A is the correct answer

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Answer:

You need to use option '–author' along with option '-l' to print the author name of each file.

Explanation:

hopefully this helps you sorry if it doesn’t help you

Order the parts needed is NOT a duty of the General Service Technician.

General service technicians are knowledgeable workers who are in charge of carrying out repair tasks on cars and other light vehicles. Customers must interact with these specialists in order to discuss pricing estimates for undertaking car maintenance services. They are required to undertake any required repairs or part replacements as well as visual vehicle inspections. They must possess the necessary skills to operate equipment that mounts and balances vehicle tyres. General service personnel should be able to install car batteries and inspect the electrical systems of vehicles.

Therefore, order the parts needed is NOT a duty of the General Service Technician.

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The minimum pressure at which the water-supplying pump must operate is approximately 2.45 x 10⁶ Pa or 2450 bar.

To calculate the minimum pressure at which the water-supplying pump must operate, we need to use the formula for the volumetric flow rate of a fluid:

Q = A * v

where,

Q =the flow rate

A = the cross-sectional area of the hole

v = the velocity of the fluid.

We can use this formula to determine the velocity of the water, and then use the Bernoulli equation to determine the minimum pressure.

From the question:

ṁ=0.05 kg/s

ρ= 996 kg/m

d= 0.02 cm

Calculating the area of the hole:

A = (π/4) * (d²)

where,

d is the diameter of the hole, and pi is approximately 3.14.

d = 0.02 cm = 0.0002 m

A = (3.14/4) * (0.0002 m)² = 1.57 x 10⁻⁷ m²

Using the mass flow rate to calculate the velocity of water:

Q = ṁ / ρ

where,

Q = the volumetric flow rate

ṁ = the mass flow rate

ρ = the density of water.

Q = (0.05 kg/s) / (996 kg/m³)

Q = 5 x 10⁻⁵ m³/s

Using the area of the hole to find the velocity of water

v = Q / A

v = (5 x 10⁻⁵ m³/s) / (1.57 x 10⁻⁷m²)

v = 318.8 m/s

Using the Bernoulli equation to find the pressure:

P = Patm + (1/2) * ρ * v²

where,

P = the pressure

Patm = the atmospheric pressure

ρ =the density of water

v = the velocity of the water.

P = Patm + (1/2) * (996 kg/m³) * (318.8 m/s)²

Hence, the minimum pressure at which the water-supplying pump must operate is approximately 2.45 x 10⁶ Pa or 2450 bar.

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The regenerative Rankine cycle has a number of advantages over the simple Rankine cycle, such as Higher thermal efficiency, Lower exhaust, and Smaller physical size, Shorter startup time.

Higher thermal efficiency as the steam is recycled back to the boiler, resulting in higher efficiency and better fuel economy. Lower exhaust steam pressure and temperature, making it more suitable for applications with lower temperature differences between the heat source and the sink. Shorter startup time as the turbine does not require as much steam to reach operating conditions. Smaller physical size, as the high pressure and temperature equipment, is not necessary.

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Answer:

A Document in a flowchart  represents a printout, for instance a document or a report.

Flowcharts are used in planning and documenting basic process or projects. Like different sorts of outlines, they help imagine what is happening and along these lines help comprehend a process, and maybe additionally find more subtle highlights inside the process.

Explanation:

A flowchart is essentially a graphical portrayal of steps. It shows steps in consecutive request and is generally used in introducing the progression of calculations or work process. Regularly, a flowchart shows the means as boxes of different sorts, and their request by interfacing them with bolts.

It is likewise a kind of graph that speaks to a work process or cycle. A flowchart can likewise be characterized as a diagrammatic portrayal of a calculation, a bit by bit way to deal with settling an assignment.

The flowchart shows the means as boxes of different sorts, and their request by associating the containers with bolts. This diagrammatic portrayal outlines an answer model to a given issue. Flowcharts are used in investigating, planning, reporting or dealing with a process or program in different fields.

To monitor production SQL databases against injection attacks, several security countermeasures can be implemented such as Input Validation and Sanitization, WAF, Security Auditing and Penetration Testing etc.

1)Input Validation and Sanitization: Implement strict input validation and sanitization techniques to ensure that user-supplied data is properly validated and sanitized before being used in SQL queries.

2)Web Application Firewalls (WAF): Deploy a WAF to analyze incoming web traffic and detect and block potential SQL injection attempts.

3)Principle of Least Privilege: Ensure that database accounts and application service accounts have the minimum required privileges.

4)Regular Patching and Updates: Keep the database management system and associated software up to date with the latest security patches.

5)Log Monitoring and Analysis: Implement a centralized log management system to monitor and analyze logs from the database server.

6)Security Auditing and Penetration Testing: Conduct regular security audits and penetration tests on the production SQL databases.

To ensure that an organization incorporates penetration testing and web application testing as part of its implementation procedures, the following steps can be taken:

1)Develop a Security Testing Policy: Establish a comprehensive security testing policy that outlines the requirements, methodologies, and frequency of security testing, including penetration testing and web application testing.

2)Incorporate Security Testing in Development Lifecycle: Integrate security testing into the software development lifecycle (SDLC).

3)Engage Professional Security Testing Services: Partner with reputable security firms or hire skilled penetration testers to conduct thorough assessments of the organization's infrastructure, applications, and systems.

4)Regularly Review and Update Testing Procedures: Continuously review and update the security testing procedures to adapt to new threats and emerging vulnerabilities.

5)Implement Remediation Processes: Establish a systematic approach for addressing identified vulnerabilities and weaknesses.

By implementing these measures, organizations can ensure that penetration testing and web application testing are integrated into their implementation procedures, leading to improved security and reduced risks of successful attacks.

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The common theme among generativity, kin keepers, the sandwich generation, and filial obligation is the interconnectedness and responsibilities between different generations, emphasizing the importance of nurturing, supporting, and maintaining intergenerational relationships within families and society.

Common Theme: The common theme that runs through generativity, kin keepers, the sandwich generation, and filial obligation is the concept of intergenerational relationships and responsibilities. Each of these concepts involves the interconnectedness and obligations between different generations within a family or society. They highlight the importance of nurturing, supporting, and maintaining connections across generations, whether it is through caring for older family members, guiding younger individuals, or contributing to the well-being of future generations. These concepts reflect the significance of family ties, care, and support as well as the dynamic roles and responsibilities that individuals assume within the context of their families and communities.

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Answer:

Made of Silicon.

Explanation:

A diode is a semiconductor device use in mostly electronic appliances. It is two terminals device consisting of a P-N junction formed either in Germanium or silicon crystal.

Diode can be forward biased or reverse biased.

When a diode is forward biased and the applied voltage is increased from zero, hardly any current flows through the device in the beginning.

It is so because the external voltage is being opposed by the internal barrier voltage whose value is 0.7v for silicon and 0.3v for germanium.

If you measure 0.7 V across a diode, the diode is probably therefore made of Silicon.