A ball bearing is required to withstand both radial loads and axial loads. The optimum bearing from the following is: Angular contact Filling-slot. Deep groove Self-aligning. > A Moving to another question will save this response.

Electron spin resonance (ESR) dating can be used on certain types of materials, specifically those containing crystalline structures with unpaired electrons. This dating method is commonly applied to materials such as tooth enamel, mollusk shells, and quartz grains, among others. These materials contain trapped charges resulting from natural radiation exposure, which can be measured using ESR techniques.

ESR dating is particularly useful for dating geological and archaeological samples that range in age from a few thousand years to millions of years. It can provide valuable insights into the age and history of the materials, allowing scientists to understand past environments, human evolution, and geological processes.

It's important to note that ESR dating is not applicable to all types of materials and has its limitations. The suitability of a material for ESR dating depends on its composition, preservation, and the availability of suitable paramagnetic centers for analysis.

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Answer:

The wind turbine has little impact on the environment compared to conventional power plants. Meanwhile the Wind turbine can affect the wildlife meaning birds are being harmed by the blades.

Explanation: Hope that helps:)

if  both wires in the twisted pair CANbus need to be repaired, it is best to replace both cables.

Twisted pair cable is described as a type of wiring used for communications in which two conductors of a single circuit are twisted together for the purposes of improving electromagnetic compatibility.

We replace both cables because the twisted pairs are done so in order to cancel out interference arising dur to electromagnetism. One of the disadvantages of using Twisted pair cable is that it is unable to provide secure transmission of data and highly prone to external interference.

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Check valves in heat pumps are utilized to turn off or turn on expansion devices for the heating and cooling modes. The expansion device may have an internal or external check valve integrated into it.

There are two of what I believe to be check valves above the boiler where the piping turns horizontal on both loops. They contain arrows that indicate the direction of the flow and a lever that may be moved to indicate either "Open," "Winter," or "Closed."

In central heating systems, motorized valves use electricity to send water from the boiler to the appropriate location, which may be the heating circuit for your home's radiators or the cylinder coil for the hot water.

Radiator valves can be divided into three categories based on how they function: Smart, Thermostatic, and Manual.

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Polishing surfaces can indeed decrease friction as it results in a smoother surface that has fewer rough edges to catch and create friction. However, when it comes to metal surfaces, polishing them can cause them to fuse together. This occurs because the act of polishing removes a very thin layer of the metal surface, exposing fresh metal underneath.

This newly exposed metal is highly reactive and can easily oxidize or react with other metals that it comes into contact with. When two polished metal surfaces come into contact with each other, the fresh metal on both surfaces can react and bond together, creating a fused joint. This phenomenon is known as cold welding and is particularly common with certain metals such as gold, silver, aluminum, and copper. It is important to note that this is not a result of decreased friction, but rather a chemical reaction between the metals. To prevent cold welding, it is common practice to add a layer of lubricant or a coating to the metal surfaces to act as a barrier and prevent direct contact between the metals. In summary, while polishing metal surfaces can decrease friction, it can also cause them to fuse together due to a chemical reaction between the freshly exposed metal on the surfaces.

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Creativity and Innovation.

Communication, Innovativeness, knowledge, quality of the product, and motivation...

Answer:

Option A

Explanation:

When a person is exposed to MSD risk factors such as

- Lifting of heavy weights

- Exposure to  whole body vibration on daily basis

- Regular overhead work

- Work that requires neck to be in chronic flexion position

- Repetitive forceful task

develop fatigue which outturn body recovery system and hence causes  musculoskeletal imbalance.

Thus, option A is correct

Lifting

Pushing

Pulling

The parties in the construction of an earthfall dam for irrigation who will be responsible for the following services are given below.

Providing labor: The responsibility for providing labor in the construction of an earthfill dam for irrigation will typically fall on the contractor or construction company that has been awarded the contract for the project. The contractor is usually responsible for hiring and managing all the necessary labor, including skilled and unskilled workers, to complete the construction of the dam.

Funding the construction of the dam: The responsibility for funding the construction of the earthfill dam will usually lie with the party or parties that have commissioned the project. In most cases, this will be a government agency or a private company that is investing in the construction of the dam.

Approving the drawings: The responsibility for approving the drawings for the earthfill dam will typically fall on the government agency or private company that is commissioning the project. The drawings will need to be approved by the relevant regulatory bodies and local authorities to ensure that the dam meets all the necessary safety and environmental standards.

Overall coordination of the project: The responsibility for the overall coordination of the project will usually fall on the project manager or project team that has been appointed by the commissioning party. The project manager will be responsible for overseeing all aspects of the project, including managing the budget, scheduling, and ensuring that the construction work is completed to the required standards.

Setting up coordinates and levels for back-filling: The responsibility for setting up the coordinates and levels for back-filling will typically fall on the engineering team that is responsible for the design and construction of the dam. The engineering team will be responsible for surveying the site and determining the best locations for the dam, as well as setting the appropriate coordinates and levels for the back-filling process.

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Answer:

project manager

Explanation:

The middle pin of a potentiometer is typically referred to as the wiper or the slider and it outputs a varying voltage that is proportional to the position of the wiper along the resistor element.

What is potentiometer ?

A potentiometer is a type of electrical component known as a variable resistor. It is used to control the flow of electrical current in a circuit by providing a variable resistance. A potentiometer consists of a resistive element, usually made of conductive material such as carbon, and two or three terminals. The most common type of potentiometer has three terminals: one for each end of the resistive element and one for the wiper, which moves along the element and makes contact with it at a certain point.

The middle pin of a potentiometer is typically referred to as the wiper or the slider and it outputs a varying voltage that is proportional to the position of the wiper along the resistor element. In other words, the voltage at the wiper is a combination of the voltage across the two outer pins, and it changes as the wiper is moved along the resistor.

The middle pin of the potentiometer is used to adjust the voltage level in a circuit and control the resistance between the other two pins. The voltage at the middle pin can be used as an input for various applications such as volume control in an audio system, brightness control in a lighting system, or as a control signal for a motor or other actuator.

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Answer:

Explanation:

Enforcing OSHA, Occupational Safety and Health Administration, standards is not a job for electricians, lawmakers or tax collectors. The right answer is safety inspectors.

The value of capacitance will be needed to produce a resonant circuit at this frequency is 79.6.

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The amount of kerosene fuel needed for an aircraft weighing 10 metric tons is 8500kg

R = (300 m/s / 15) * (25 g/Ns / 9.81 m/s^2) * ln((10,000 kg + 5,000 kg * R) / 10,000 kg)

By analyzing the equation numerically, the range of the aircraft appears to be roughly 3,400 km. Therefore the volume of fuel required for the flight is:

m_fuel = 5,000 kg * 3,400 km = 17,000 kg

This calculation signals the required amount of fuel for a round-trip journey with no additional reserve account. To gauge the exact quantity of fuel necessary for the one-way voyage from Boston to Los Angeles, we can merely divide this figure by half :

= 17000 / 2

= 8,500 kg

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The speed of the block after it slides 3 m is determined as -15.64 m/s.

The speed of the block is calculated by applying the following the law of conservation of energy.

ΔK.E = W

where;

¹/₂m(v₂ - v₁) = -μfd

where;

¹/₂m(v₂ - v₁) = -μmgd

v₂ - v₁ = -2μgd

v₂  = v₁ -2μgd

v₂ = 2 - (2 x 0.3 x 9.8 x 3)

v₂ = -15.64 m/s

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Nec Article 430 covers selection of time-delay fuses for motor- overload protection.

Article 430 that is found in  National Electrical Code (NEC) is known to be state as “Motors, Motor Circuits and Controllers.” .

Note that the article tells that it covers areas such as motors, motor branch-circuit as well as feeder conductors, motor branch-circuit and others.

Therefore, Nec Article 430 covers selection of time-delay fuses for motor- overload protection.

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I disagree with the statement that when the Accident Prevention Department is working at full capacity, occupational accidents should become insignificant to an organization seeking to achieve its competitive advantage.

The Accident Prevention Department is a section of the organization that focuses on implementing safety and health guidelines to decrease the likelihood of accidents occurring. The objective of the Accident Prevention Department is to eliminate the root causes of accidents and ensure a safe and healthy work environment for employees. While the department is not entirely responsible for preventing accidents, it is in charge of overseeing and managing the organization's safety and health initiatives, policies, and regulations.What does an organization's competitive advantage mean?Competitive advantage refers to the unique advantage a company has over its rivals. This advantage enables the organization to gain market share, increase revenue, and enhance its brand image. An organization's competitive advantage can be based on a variety of factors, including innovation, pricing, customer service, product quality, and brand image. The advantage can either be tangible or intangible.Why do I disagree with the statement?The statement claims that when the Accident Prevention Department is functioning at full capacity, occupational accidents should become insignificant to an organization looking to achieve a competitive advantage. However, this statement is not completely valid because although the Accident Prevention Department may be able to reduce the number of accidents that occur in an organization, accidents can still occur.Therefore, regardless of how well an organization's Accident Prevention Department performs, it cannot entirely eliminate the chance of occupational accidents occurring. Therefore, the organization must continue to address potential safety hazards and provide comprehensive training to employees to minimize the risk of accidents and achieve a competitive advantage.

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The mass balance equation is used to eliminate the concentration. Finally, the model can be expressed as one differential equation for T and one algebraic equation for M.

The dynamic model for a perfectly stirred, constant-volume tank with two input streams of the same liquid is given by:

dy(T)/dt = 1/C [(w1Cp1 + w2Cp2)(Tin - T) + UA(Tin2 - T2)]

dM/dt = w1 + w2

dC/dt = 1/V (w1 + w2 - w)

where:

T is the temperature of the liquid in the tank

w1, w2 are the mass flow rates of streams 1 and 2

Cp1, Cp2 are the heat capacities of streams 1 and 2

Tin1, Tin2 are the temperatures of streams 1 and 2

U is the overall heat transfer coefficient

A is the heat transfer surface area

Tin is the temperature of the incoming liquid

W is the mass flow rate of the combined incoming stream

M is the mass of the liquid in the tank

C is the concentration of the liquid in the tank

V is the volume of the tank

The degrees of freedom (DOF) analysis assuming both streams 1 and 2 come from upstream units is as follows:

DOF = Number of variables - Number of equations

Number of variables = 4 (T, M, C, w)

Number of equations = 3 (one for each differential equation)

Therefore, DOF = 4 - 3 = 1. This means that the model has one degree of freedom and that one variable can be specified arbitrarily.

Usually, the concentration C is not an independent variable in such cases, but can be calculated from the mass balance equation. Hence, it is customary to assume that the concentration is known and eliminate it from the model. Therefore, the simplified model is:

dT/dt = 1/C [(w1Cp1 + w2Cp2)(Tin - T) + UA(Tin2 - T2)]

dM/dt = w1 + w2 - W

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Moment of Inertia is the measure of a structure's resistance to rotation. It is the integral sum of an element's mass and its distance from the axis of rotation.

A moment of inertia can be changed by adjusting the shape of a structure to change the distance of mass from the axis of rotation. A structure's moment of inertia is proportional to the stress due to bending.

A structure with a higher moment of inertia will have a lower stress due to bending than a structure with a lower moment of inertia. A beam's moment of inertia is dependent on its shape.

Rectangular, circular, or I-beam shapes are popular for their ability to handle bending stress. Wider beam shapes distribute bending stress more evenly over the beam's cross-sectional area, resulting in a lower bending stress.

I-beams are designed with a high moment of inertia to resist bending, making them a popular choice for construction. A higher moment of inertia ensures a stronger beam that can better resist bending stress.

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The basic requirement of measurements is to have a standard or reference point against which to compare the quantity being measured. This standard or reference point should be well-defined and stable, and the measurement process should be repeatable and consistent. Additionally, it is important to ensure that the measurement equipment is calibrated and in good working condition.

Answer:

The most basic requirement for measurements is the presence of a standard or reference point against which the quantity being measured can be compared. The measurement process should be repeatable and consistent, and the standard or reference point should be well-defined and stable. Furthermore, ensure that the measurement equipment is calibrated and in good working order.

Explanation:

The correct SI Form of the following combinations of Units are given as follows:

A) kN/μs = GN/s

B) Mg/mN; = Gg/N

C) MN/(kg.ms)  = GN/(kg.s)

The International System of Units, abbreviated SI in all languages and often pleonastically as the SI system, is the current version of the metric system and the world's most extensively used measuring system.

The System of Units, often known as the metric system, is frequently shortened as SI, which originates from the original French word, Système international d'unités.

A) kN/μs  = (10) ³N/ (10) ⁻6s

= (10)⁹ N/s

= GN/s

B) Mg/mN = (10⁶)g/10⁻³/N

= Gg/N

C) MN/ (kg.ms) = 10⁶N/kg * (10⁻³)s

= 10⁹ (N/kg · s)

= GN/Kg · S)

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Full Question:

Represent Each Of The Following Combinations Of Units In The Correct Si Form Using An Appropriate Prefix:

A) kN/μs

B) Mg/mN; and

MN/(kg.ms)

The answer is analyze

At f=1MHZ is the frequency gain reduced to ‐2 v/v and integer time constant is 0.079μs in op-amp based inverting integrator.

The number of waves that pass a fixed point in a unit of time is known as frequency in physics. It is also the number of cycles or vibrations that a body in periodic motion experiences in a unit of time.  A simple harmonic motion is also seen under angular velocity. If one cycle or vibration takes half a second to complete, the frequency is two per second; if it takes a full hour, the frequency is one hundred per hour. Divide the number of times the event occurs by the amount of time to find frequency. The number of times someone blinks their eyelids in a minute, or frequency, is 47. The definition of frequency, expressed in hertz, is the number of oscillations of a wave per unit of time (Hz). The relationship between frequency and pitch is straightforward. Frequencies between 20 and 20000 Hz are audible to humans.

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Answer:

Casual workers

Explanation:

Casual workers are workers on a short-term employment contract that unlike non-permanent workers have restricted entitlement to benefits, little employment security, with the primary distinction of there being a lack of a stable connection or relationship between them and their employers for the to be referred to as employees.

Answer:

True

Explanation:

There are 16 in all and 4 are not mandatory

There are some sections of the SDS that are not mandatory. Thus, option A is correct.

A Safety Data Sheet, previously known as a Material Safety Data Sheet, is a thorough instructional report written by a dangerous product's producer or exporter. It gives a description of something like the product's chemical and physical characteristics.

Sections 1 through 11 and 16 must be used; sections 12 through 15 are optional but could be included. the section which will are not compulsory are:

Section 12: Environmental data

Section 13: Guidelines for Recycling

Section 14: Documentation regarding mobility

Section 15: Relevant data about regulations

In Safety Data Sheet, all the sections are not compulsory or mandatory. this statement is true. Therefore, option A is the correct option.

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Answer: d consequences

Explanation:

Answer:

Any circuit that goes directly from the fixture to the breaker panel. For dedicated outlets, isolated fixtures and high-load items, you would want them to be on their own breakers. Those would get a home run, a line that goes all the way back without stopping.

Proper training, protective clothing, and safety protocols are essential for preventing accidents in a welding shop.

The key to preventing accidents in a welding shop is to ensure that all workers are properly trained and that appropriate protective equipment and safety protocols are followed. This includes wearing the proper protective clothing, such as fire-resistant clothing, safety glasses, and face shields, as well as ensuring that all welding work areas are properly ventilated. Additionally, there should be clearly marked emergency exits and fire extinguishers in the welding shop, and all employees should be trained in how to use them in case of an emergency.

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The inclusion of a slight slope on flat roofs, typically from front to rear, is essential for effective drainage, preventing water accumulation, and maintaining the integrity of the roof structure. It is a key design feature that ensures the long-term performance and durability of flat roofs.

The primary reason for incorporating this slope is to prevent water from pooling or accumulating on the roof's surface. If a flat roof were entirely level, water could collect in low-lying areas and cause structural issues, leaks, or damage to the roofing material over time. By introducing a gentle slope, the roof encourages water to flow towards drainage points, such as gutters or scuppers, where it can be efficiently directed away from the building.

In addition to enhancing drainage, a slight slope can also contribute to the overall longevity and durability of the roof. By minimizing the amount of time water remains in contact with the roof surface, the potential for water-related problems, such as leaks or deterioration, is reduced. Proper drainage helps prevent excessive moisture buildup and supports the longevity of the roofing system.

Overall, the inclusion of a slight slope on flat roofs, typically from front to rear, is essential for effective drainage, preventing water accumulation, and maintaining the integrity of the roof structure. It is a key design feature that ensures the long-term performance and durability of flat roofs.

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