Near-field communication devices send data at what fixed frequency?
A - 8.65 MHz
B - 13.56 MHz
C - 21.39 MHz
D - 47.1 MHz

Answer:

None of the above cause thats what i put

Answer:

F=200kN

Explanation:

(a)

11001.1011₂ = 1×2⁴ + 1×2³ + 1×2⁰ + 1×2 ⁻¹ + 1×2 ⁻³ + 1×2 ⁻⁴

… = 16 + 8 + 1 + 1/2 + 1/8 + 1/16

… = 411/16

(b) In base 16, we have A₁₆ = 10 and C₁₆ = 12, so

A3.C₁₆ = 10×16¹ + 3×16⁰ + 12×16 ⁻¹

… = 160 + 3 + 12/16

… = 2620/16 = 655/4

(c)

75.16₈ = 7×8¹ + 5×8⁰ + 1×8 ⁻¹ + 6×8 ⁻²

… = 56 + 5 + 1/8 + 6/64

… = 3918/64 = 1959/32

(d) B₁₆ = 11 and D₁₆ = 13, so

ABCD₁₆ = 10×16³ + 11×16² + 12×16¹ + 13×16⁰

… = 40960 + 2816 + 192 + 13

… = 43981

PLEASE GIVE BRAINLIST

A parallel circuit has two or more paths for current to flow through. Voltage is the same across each component of the parallel circuit. The sum of the currents through each path is equal to the total current that flows from the source.

HOPE THIS HELPED

Answer:

Forces like wind and water break down rocks through the processes of weathering and erosion. ... Forces like wind and water move the rock pieces. They mix with matter like sand to become sediment. Weathering and erosion help shape Earth's surface.

Answer:

As an agent of erosion, the wind will quickly break the rock into different rock types.

Explanation:

The lighting load for a two-story dwelling unit where each floor has 900 square feet of space can be determined using the National Electrical Code (NEC) standard. The NEC provides standard rules and methods for electrical installation and safety.

The lighting load calculation involves a simple formula for determining the required watts per square foot.For general illumination, NEC specifies a lighting load of 3 watts per square foot. Therefore, for a two-story dwelling unit where each floor has 900 square feet of space, the lighting load can be calculated as follows:Total square footage of the house = 2 × 900 sq ft = 1800 sq ftLighting load = Total square footage of the house × 3 watts/sq ft= 1800 sq ft × 3 watts/sq ft= 5400 wattsThe lighting load for a two-story dwelling unit where each floor has 900 square feet of space is 5400 watts.

It is important to note that this calculation does not include any additional lighting requirements for specific rooms, such as kitchens, bathrooms, or home offices. These areas may require additional lighting based on their intended use, and the calculation should be adjusted accordingly.

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Retrieval of an element from a list is typically based on using the equals method or the == operator.

In most programming languages, including Python and Java, the equals method is used to compare objects for equality. The equals method allows you to define the criteria for determining if two objects are equal based on the attributes or properties of the objects.

The == operator is another way to compare objects for equality in some programming languages. It typically checks if the references of two objects are the same, meaning they refer to the same memory location. This is often used for comparing primitive types or checking if two objects are the same instance.

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The application of engineering principles and problem-solving methodologies to biology and medicine is known as biomedical engineering.

The application of engineering principles and problem-solving methodologies to biology and medicine is known as biomedical engineering.

This is clear in every aspect of healthcare, from diagnosis and evaluation to treatment and recovery, and it has gained public attention thanks to the widespread use of implantable medical devices like pacemakers and artificial hips as well as more cutting-edge technologies like stem cell engineering and 3-D printing of biological organs.

Engineering is a creative subject that has produced concepts for everything from sonar to airplanes, skyscrapers to automobiles. The field of biomedical engineering focuses on developments that enhance human health and medical care on all fronts.

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It is important for Technicians to be knowledgeable about these differences to perform accurate and efficient diagnostics and repairs.

Technician B is correct. Although speed sensors serve a similar purpose in various vehicles, each manufacturer, and sometimes even different ABS systems within the same manufacturer, may use different types of speed sensors. This can result in different diagnostic procedures required to troubleshoot and fix issues related to the ABS system.
The reason for these differences is that manufacturers design their ABS systems with specific components and software to meet the unique requirements of their vehicles. Consequently, the diagnostic procedures and tools needed to identify and fix problems may vary. Professional technicians need to be familiar with the specific procedures and tools recommended by each manufacturer to ensure accurate and effective diagnosis and repair of ABS systems.
In  Technician B is correct because each manufacturer, and sometimes different ABS systems, use different diagnostic procedures due to the unique design of their speed sensors and ABS components. It is important for technicians to be knowledgeable about these differences to perform accurate and efficient diagnostics and repairs.

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Answer:

The positions flat, horizontal, vertical and overhead are the basic types of welding positions.

Answer:

What you should do changes based on the hazards you're exposed to.

You should be aware of any hazards that are present.

For an RL low-pass filter with a cutoff frequency of 4 kHz and R = 10 kΩ, the calculated values are: Inductor (L): 0.25 H, Impedance (Z) at 25 kHz: 0.158 kΩ, Phase angle (φ) at 25 kHz: -80.5°

The correct answer is L = 0.25 H, 0.158 kΩ, and <-80.5°

A low-pass filter is a circuit that eliminates or reduces high-frequency signals while allowing low-frequency signals to pass through unaffected. A low-pass filter is made up of a resistor and an inductor.

To calculate the filter, the formulae L = R/ωC can be used where L is the inductance of the inductor, R is the resistance of the resistor, and ωC is the angular frequency. The formula for calculating the cutoff frequency of a low pass filter is given as;fc= 1/2πRC.

Let's solve for (a) L: fc = 4 kHz = 4000Hz; R = 10 kΩ = 10,000 Ω.

Therefore;fc = 1/2πRL;

L = 1/2πRfc

Using the above equation, let's calculate the value of L:

L = 1/2 × 3.14 × 4,000 × 10,000 = 0.25 H

To calculate the (b) and (c) parts of the question, we need to use the formulas below:

For (b): The magnitude is given as; |Z| = √(R² + ω²L²)

For (c): The phase angle is given as; φ = -tan⁻¹(ωL/R)

The value of |Z| at 25 kHz: |Z| = √(R² + ω²L²);

At 25 kHz, ω = 2πf = 2π × 25,000 = 157,080;

R = 10 kΩ = 10,000 Ω;

L = 0.25 H

|Z| = √(10000² + (157080² × 0.25²));

|Z| = 28762.77 Ω.

The value of φ at 25 kHz: φ = -tan⁻¹(ωL/R);

φ = -tan⁻¹(157080 × 0.25/10000);

φ = -80.54°;

Rounding off to one decimal place gives us φ = <-80.5°.

Therefore, the solution to the question is:L = 0.25 H, 0.158 and <-80.5° O.

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Answer:

a) True

Explanation:

In Computer programming, when a multiple thread is executing, the sequence in which the statements (codes) contained therein are executed by these multiple thread is mainly nondeterministic in nature.

When nondeterminism results from multiple threads attempting to access a shared resource such as a shared variable or a shared file, at least one of the accesses is an update, and the accesses can result in an error, we have a race condition.

A race condition can be defined as a condition in which multiple threads have the ability to access shared data at the same time and as such they both try to change (modify) the data. Thus, in a race condition occurs in computer (software) programming when a software application's behavior is solely dependent on the timing of multiple threads (processes) in order to function properly.

Answer:

The given question contains multiple parts, each asking for a different calculation or analysis related to the given transformer. I will try to address each part of the question separately:

a) To find the equivalent circuit of the transformer referred to the low-voltage side, we need to know the transformer's equivalent impedance and leakage reactance. These can be calculated using the open-circuit and short-circuit test data. The equivalent impedance can be calculated using the following formula:

Zeq = (Voc^2 / Poc) - (Iso^2 * Rc)

Where Rc is the core loss resistance, which can be assumed to be negligible.

The leakage reactance can be calculated using the following formula:

Xm = (Vsc / Iso) - Rc

Once these values have been calculated, we can create the equivalent circuit of the transformer, which consists of a series connection of the equivalent impedance and leakage reactance, connected in parallel with the magnetizing reactance (Xm).

b) To calculate the full-load voltage regulation at unity power factor, we can use the following formula:

Voltage regulation = (Voc - Vsc) / Voc

c) I would plot the voltage regulation as lead is increased from no load to full load under condition b, but as it is not specified how the voltage regulation varies with the load, I am unable to provide the plot.

d) To calculate the efficiency of the transformer at full load with a power factor of 0.6 lagging, we can use the following formula:

Efficiency = (Output power (at 0.6 pf lagging) / Input power) * 100

Where the output power can be calculated using the following formula:

Output power = (Vsc * Iso * cos(theta))

Where theta is the angle between the voltage and current at the secondary side (in this case, the low-voltage side) of the transformer.

It is worth noting that these calculations require accurate data for the transformer's voltage and current values, as well as the core loss resistance, and assuming the data provided is accurate the above formulas will give you the desired results.

The given statement "When solving the impact problems, we should always assume that during an impact between two bodies, there is no permanent deformation in the bodies" is False and  there is usually some amount of permanent deformation during an impact when semi-truck collides head-on with a mini car.

The statement is False because In reality, there is usually some amount of permanent deformation that occurs during an impact, especially if the impact is severe. However, in many cases, the amount of deformation may be negligible or can be ignored for simplicity in calculations.Therefore the statement is False.

If a semi-truck collides head-on with a mini car then According to Newton's Third Law of Motion, every action has an equal and opposite reaction. Therefore, both the semi-truck and the mini car will exert equal force on each other during a head-on collision. The force experienced by each vehicle will depend on factors such as their mass, speed, and the duration of the impact. However, it is likely that the semi-truck, being much larger and heavier than the mini car, will experience less of a change in velocity than the mini car and therefore will exert more force on the smaller vehicle.

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Studies of surface water are not typically used to explore groundwater.

Option C is the correct answer.

We have,

Exploring groundwater involves investigating and assessing the presence, availability, and characteristics of groundwater resources beneath the Earth's surface.

Groundwater refers to the water stored underground in spaces between soil particles, and rocks, and within underground aquifers.

Here are some commonly used approaches:

Geologic Field Studies

Gravity Surveys

Studies of Surface Water:

Drilling

Thus,

Studies of surface water are not typically used to explore groundwater.

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Answer:

That's not true, if your house is burning down, leave. Let the firefighters do their jobs.

Explanation:

Note that possessing an ASE Certification is crucial because; " Leads to better employment opportunities." (Option D)

ASE certification, commonly known as Automobile Service Excellence, is given to an automotive mechanic who has finished the necessary training and acquired their Automotive Service Excellence Certified Master Technicians criteria.

There are 58 ASE certification examinations available, covering nearly every facet of the automobile repair and service sector.

The National Institute for Automotive Service Excellence (ASE) offers four levels of certification. They are:

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Answer: hello some data related to your question is missing attached below is the missing data

answer:

T2 = 265°C

Explanation:

First step : calculate sum of vertical forces

∑ y = 0

Fmg - 2(0.5 Fst ) = 0

∴Fmg = ( 12 * 10^6 ) ( 2 * π/4 (0.01)^2 )

          = 1884.96 N

Also determine the Compatibility equation in order to determine the change in Temperature

ΔT = 250°C

therefore Temperature at which average normal stress becomes 12.0 MPa

ΔT = T2 - T1

250°C = T2 - 15°C

T2 = 250 + 15 = 265°C

attached below is the detailed solution

Answer:

Completed load manifest, dispatch release and flight plan

A computer is an electronic device that processes and stores data, performs calculations, and executes instructions to carry out various tasks. The most likely causes for the computer spontaneously shutting down within a short period of time are:

2.) The power connector for the fan was not connected to the motherboard: If the fan is not receiving power, the CPU may overheat quickly, triggering a shutdown to protect the system.

3.) The heat sink and fan were not installed correctly: Improper installation of the heat sink and fan can result in inadequate cooling, causing the CPU to overheat and leading to shutdowns for thermal protection.

While other factors like a bad CPU (5) or an unsupported CPU by the BIOS (1) could potentially cause shutdowns, the power connector and heat sink installation issues are more commonly associated with sudden and frequent shutdowns. It is recommended to ensure the fan is connected and the heat sink is properly installed to resolve the overheating issue and prevent the spontaneous shutdowns.

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The statement that does NOT accurately describe supply chain management is option B, which states that it is a closed-loop system solely within the project organization's boundaries.

Supply chain management is a critical process that addresses the flow of material, service, monetary, and information across supply chain partners. It is a systems approach to managing the entire flow of physical products, from raw materials to finished goods, and includes all activities required to get the product to the customer. Supply chain management spans across suppliers and producers, resellers, project organizations, and ultimately the end customer. It involves the coordination of multiple functions and activities, such as procurement, logistics, production, and distribution, and aims to optimize the flow of goods and services while minimizing costs and improving customer satisfaction.

Option B is incorrect because supply chain management is not a closed-loop system solely within the project organization's boundaries. Rather, it involves collaboration and coordination among all supply chain partners, both upstream and downstream, to ensure efficient and effective flow of products and information. Supply chain management requires a holistic approach that involves stakeholders from various functions and levels, including suppliers, manufacturers, distributors, retailers, and customers.

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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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The reinforcement must be stored in such a manner as to prevent: deterioration and corrosion.

Concrete reinforcement is accomplished by inserting deformed steel bars or welded wire fabric inside newly cast concrete. The goal of reinforcing is to give strength to concrete where it is required.

All exposed reinforcing surfaces should be carefully cleaned of loose mortar, corrosion, and other pollutants. To prevent overbuilding and limit bond development loss at rebar deformations, the high-performance protective coating should be placed at a thickness of 305 microns.

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Full Question:

What are the words that complete the sentence below:

The reinforcement must be stored in such a manner as to prevent:

Answer:

Explanation:

The probability of n bits being in error is 10Cn × p^n, where ...

  10Cn = 10!/(n!(10-n!))

  10C1 = 10

  10C2 = 45

  10C3 = 120

This is the product of the probability that n bits can be in error and the number of ways that n bits can be chosen from the 10 in the word.

  n = 1: 10p

  n = 2: 45p²

  n = 3: 120p³

The mechanism by which caffeine most likely improves endurance performance is that it stimulates the central nervous system.

Caffeine is a stimulant that acts as an adenosine receptor antagonist, which means it blocks the effects of adenosine, a neurotransmitter that promotes relaxation and drowsiness.

By blocking adenosine receptors, caffeine increases alertness and reduces perceived effort during exercise. It can enhance endurance performance by reducing the perception of fatigue, increasing mental focus, and promoting a state of increased arousal and readiness.

Caffeine has also been shown to enhance muscle contraction by increasing calcium release and enhancing muscle fiber recruitment. It can lead to improved muscle contractility and delayed muscle fatigue, further contributing to enhanced endurance performance.

Additionally, caffeine has been found to increase the release of adrenaline (epinephrine) and other catecholamines, which can stimulate the body's fight-or-flight response and lead to increased heart rate, blood flow, and oxygen delivery to the muscles.

It's important to note that the effects of caffeine on performance can vary among individuals, and optimal dosage and timing may depend on factors such as body weight, tolerance, and individual response. It's recommended to experiment and assess personal tolerance and response to caffeine before using it as a performance enhancer. Consulting with a healthcare professional or sports nutritionist can provide personalized recommendations.

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Answer:

Switching on and off

Explanation:

No starters are often caused by a faulty crankshaft actuator. The signals from this transmitter is sent to the ignition module, which turns in and out of the ignition system. If you already have an RPM sign, it's possible that a faulty ignition unit or PCM isn't turning the coils on and off. Along with button on and the motor cranking, testing for volts at the contacts with a voltmeter.

the maximum height h to which the the water steam could rise is 40.65m.

/ρg + /2g +  = /ρg + /2g +

/ρg +  = /ρg +

= ( - )/ρg +

Substituting values into  we have,

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When a dielectric is inserted into a capacitor connected to a battery, the energy stored in the capacitor increases. This is because the electric field between the plates decreases due to the presence of the dielectric, which leads to an increase in capacitance and an increase in energy stored in the capacitor.

The capacitance is defined as the ability of a capacitor to store energy in the form of an electric charge, and it is directly proportional to the distance between the plates and inversely proportional to the dielectric constant of the medium between the plates.

The work done in the process of inserting a dielectric into a capacitor is given by the equation W = Fd, where W is the work done, F is the force required to insert the dielectric, and d is the distance over which the force is applied. The force required to insert the dielectric is proportional to the change in electric field between the plates, which in turn is proportional to the dielectric constant of the medium.

The energy stored in a capacitor connected to a battery increases when a dielectric is inserted, and the work done in the process depends on the dielectric constant of the medium.

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