Luminaires on bridges should be equipped with _______ in case the mounting bolts vibrate loose.
a. safety cables
b. spare bolts
c. warning signs
d. warning lights

FreshDirect has a competitive advantage when it comes to data which their rivals cannot match. FreshDirect has been using data analytics for more than a decade now to optimize their operations, improve customer experiences, and offer customized product recommendations. FreshDirect is known for its high level of customer service, which is due in part to its sophisticated data systems that help it anticipate and respond to customer needs quickly and effectively.

They can also monitor customer behavior in real-time to identify trends and preferences, which helps them tailor their product offerings and marketing campaigns to better appeal to customers. FreshDirect has also invested heavily in its supply chain, which is another area where data analytics can be extremely valuable. By using data analytics to track inventory levels, optimize delivery routes, and monitor supplier performance, FreshDirect is able to maintain a high level of operational efficiency and offer a wider range of products to customers. In conclusion, FreshDirect's investment in data analytics gives them a competitive advantage that their rivals cannot match.

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Answer:

talk to people

Explanation:

you can communicate with people around the world and in different area

Answer:

Explanation:

Work, U, is equal to the force times the distance:

U = F · r

Force needed to lift the weight, is equal to the weight: F = W = m · g

so:

U = m · g · r

   = 20.4kg · 9.81 \(\frac{N}{kg}\) · 1.50m

   = 35.316 \(\frac{N}{m}\)

   = 35.316 W

The average dependency that does not hold over schema S is B-C, while the dependencies that do hold over S are A and BC-A.

a. The dependency that does not hold over schema S is B-C. This is because for the three tuples given, both B and C have different values in two of the three tuples. In order for B-C to be satisfied, B must always have the same value as C for all tuples in the relation. b. The dependencies that hold over S are A and BC-A. For A, all three of the tuples have different values in the A attribute. For BC-A, B and C have the same values for the two tuples (2,3,4) and (4,3,4), and A has different values for both of these tuples. This satisfies BC-A for this legal instance of the relation schema S.

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\(\\ \sf\longmapsto K.E=\dfrac{1}{2}mv^2\)

\(\\ \sf\longmapsto K.E=\dfrac{1}{2}(20)(4.2)^2\)

\(\\ \sf\longmapsto K.E=10(17.64)\)

\(\\ \sf\longmapsto K.E=176.4J\)

Answer:

\(176.4J\)

Explanation:

Formula to find the kinetic energy is,

\(E_{k} = \frac{1}{2} m {v}^{2} \)

Let's solve now

\(E _{k} = \frac{1}{2} m {v}^{2} \\ = \frac{1}{2} \times 20kg \times 4.2 m {s}^{ - 1} \times 4.2 {ms}^{ - 1} \\ = \frac{352.8}{2} \\ = 176.4J\)

Hope this helps you.

Let me know if you have any other questions :-)

Answer:

(a) Qh(dot)=600 kW, Qc(dot)=400 kW  is an irreversible process.

(b) Qh(dot)=600 kW, Qc(dot)=0 kW  is an impossible process.

(c) Qh(dot)=600 kW, Qc(dot)=200 kW  is a reversible process.

Explanation:

T(hot) = 1200k, T(cold) = 400

efficiency n = (Th - Tc ) / Tc

n = (1200 - 400) / 1200 = 0.667 (this will be the comparison base)

(a)

Qh = 600 kW, Qc = 400 kW

n = (Qh - Qc) / Qh ⇒ (600 - 400) / 600

n = 0.33

0.33 is less than efficiency value from temperature 0.67

∴ it is irreversible process

(b)

Qh = 600 kW, Qc = 0

n = (Qh - Qc) / Qh ⇒ (600 - 0) / 600 = 1

efficiency in any power cycle can never be equal to one.

∴ it is an impossible process.

(c)

Qh = 600 kW, Qc = 200 kW

n = (Qh - Qc) / Qh = (600 - 200) / 600

n = 0.67 (it is equal to efficiency value from temperature)

∴ it is a reversible process

Answer:

What ! you are an Engineer and I am a High school why are You in my feed..!!

As part of the monitoring and controlling process in project management, one of the activities accomplished is assessing project quality.

This involves evaluating and measuring the project's deliverables and performance against predefined quality standards and criteria. It ensures that the project outputs meet the desired level of quality and helps identify any deviations or issues that may arise during project execution. This activity helps project managers take corrective actions and make necessary adjustments to maintain or improve project quality.

While completing project documentation, completing the lessons learned review, and creating the network diagram are important tasks in project management, they may be associated with other processes such as project closing, project review, or project planning, respectively, rather than being specifically part of the monitoring and controlling process.

Therefore, one of the activities accomplished is assessing project quality.

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Solution :

B. yes, the given solution assures confidentiality. The sender Alice encrypting his messages with its own private key PRA which provides authentication. Sender Alice further encrypts his messages with the receiver's public key PUB provides confidentiality.

C. So the given solution provides non repudiation. Alice and Bob who are exchanging messages. In one case, Alice denies sending a messages to Bob that he claims to have received being able to counter Alice's denial is caused non repudiation of origin.

D. The given solution provides integrity. Because it provides authentication and have not been changed.

E. It does not provide replay attacks because it does not captures the traffic. The client does not receive the messages twice.

(1) The partial pressure of dry air is 89.9 kPa. (2) The specific humidity of the air is 0.0115 kg H20/kg dry air. (3) The enthalpy per unit mass of dry air is 45.4 kJ/kg dry air.

To determine the partial pressure of dry air, we need to calculate the vapor pressure of water at 18 °C, which is 2.88 kPa. Then, we can calculate the partial pressure of dry air by subtracting the vapor pressure from the total pressure:

Partial pressure of dry air = Total pressure - Vapor pressure

Partial pressure of dry air = 101 kPa - 2.88 kPa

Partial pressure of dry air = 89.9 kPa

To find the specific humidity of the air, we need to use the relative humidity and the vapor pressure. Specific humidity is the ratio of the mass of water vapor to the mass of dry air:

Specific humidity = Mass of water vapor / Mass of dry air

Specific humidity = (Relative humidity * Vapor pressure) / (Total pressure - Vapor pressure)

Specific humidity = (0.89 * 2.88 kPa) / (101 kPa - 2.88 kPa)

Specific humidity = 0.0115 kg H20/kg dry air

The enthalpy per unit mass of dry air can be determined using psychrometric properties and tables. At 18 °C, the enthalpy of dry air is 45.4 kJ/kg dry air.

Therefore, the partial pressure of dry air is 89.9 kPa, the specific humidity of the air is 0.0115 kg H20/kg dry air, and the enthalpy per unit mass of dry air is 45.4 kJ/kg dry air.

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Answer: a filter whose current output depends on past and present inputs.

Explanation:

A nonrecursive filter may best be described as a filter whose current output depends on past and present inputs.

It should be noted that in this case, the output is typically stable. For the non recursive filter, the current output which is denoted as (yn) will have to be calculated from the input values which are for both previous and current values.

The most common use for encoders is to measure angular or linear distance, but encoders can also be used to perform speed or velocity measurements. In other words, as the encoder rotates faster, the pulse frequency increases at the same rate

Answer: So you are dealing with maximum and minimum weights and you want to know what MINIMUM number of supporting strands for this block and tackle system are needed I believe. If so you are dealing with economic imbalances Though we are not worrying about money Right? Right we need physics which Physics study matter and how it moves You would need 8 STRANDS

Explanation: Step By Step

Answer:

A motor burnout is formed when a hermetic motor burns while in use.

Answer:

The reason for their unusual properties of the greasy feel and low hardness is that the chemical bonds between the sheets is so weak that very low stresses can allow slip between the sheets.

Explanation:

Talc is a monoclinic mineral with a sheet structure similar to the micas and also has perfect cleavage that follows planes between the weakly bonded sheets.

Now, these sheets are held together only by van der Waals bonds and this allows them to slip past each other easily. Thus, this unique characteristic is responsible for talc's extreme softness, its greasy, soapy feel, and its value as a high-temperature lubricant.

While for graphite, it's carbon atoms are linked in a hexagonal network which forms sheets that are one atom thick. It's sheets are poorly connected and easily cleave or slide over one another when subjected to a small amount of force. Thus, gives graphite its very low hardness, its perfect cleavage, and its slippery feel.

So, we can conclude that the reason for their unusual properties is that the chemical bonds between the sheets is so weak that very low stresses can allow slip between the sheets; hence, the greasy feel and low hardness.

Quartz and glass-panel electric units are classified as radiant heaters. These heaters use infrared radiation to transfer heat directly to objects and people, providing efficient and targeted warmth.

How can we explain radiant heaters?

Radiant heaters are a type of heating system that works by emitting infrared radiation to warm up objects and people in a room rather than heating up the air itself. This makes them an efficient and effective option for heating small spaces as well as outdoor areas like patios and garages.

Radiant heaters come in a variety of forms, including electric, gas, and propane. Electric radiant heaters use electricity to generate heat, while gas and propane radiant heaters burn fuel to create heat. Some models are designed to be mounted on walls or ceilings, while others are portable and can be moved around as needed.

The way radiant heaters work is by emitting infrared radiation, which is absorbed by objects and people in the room. This causes the objects to warm up, and the heat is then radiated back into the room. Unlike traditional forced-air heating systems, which heat up the air and rely on fans to distribute the warm air throughout a space, radiant heaters provide direct, localized heat to the objects and people in a room.

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Answer:

Yeah the metal part of the seat belt is a better thermal conductor than the plastic part of the seat belt.

Explanation:

Answer:

Utilizing flush valves for toilets and urinals and/or low-flow versions of each, as well as installing low-flow faucets, or aerators can significantly reduce water use.

Explanation:

Answer:

Product Teardown 28 pieces (1) Plastic packaging: protect and display product for purchase. (4) Exterior screws: hold case halves together. (1) Right case half: acts as part of a handle and contains the rest of the parts. (1) Left case half: acts as part of a handle and contains the rest of the parts.

Explanation:

A product teardown process is an orderly way to know about a particular product and identify its parts, system functionality to recognize modeling improvement and identify cost reduction opportunities. Unlike the traditional costing method, tear down analysis collects information to determine product quality and price desired by the consumers.

Answer:

?

Explanation:

The high rate process that has the objective of producing pin-sized floc is the Dissolved Air Flotation (DAF) process.

In the DAF process, fine bubbles of air are introduced into a water or wastewater stream under pressure. These bubbles attach to the suspended solids, oils, or other contaminants in the water, causing them to float to the surface. As a result, a layer of pin-sized floc is formed on the water surface, which can be easily skimmed off and removed.

The DAF process is commonly used in water and wastewater treatment applications to remove solids, oils, and other contaminants. The objective of producing pin-sized floc is to enhance the efficiency of the separation process and improve the removal of fine particulate matter.

Tube settlers, superpulsators, and the Actiflo process are also high rate processes used in water and wastewater treatment, but they do not specifically aim to produce pin-sized floc. Tube settlers are used for solids settling and clarification, superpulsators are used for rapid mixing and flocculation, and the Actiflo process combines coagulation, flocculation, and sedimentation in a compact system.

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Answer:

1. TURN ON YOUR HAZARD/EMERGENCY LIGHTS

Turn on your hazard lights to warn other drivers as soon as you sense something's wrong. Keep them on until help arrives, recommends the National Motorists Association (NMA).

2. SLOW DOWN AND PULL OFF THE ROAD

Aim for the right shoulder of the road. Consumer reports recommends that you pull over to a safe, flat location that is as far away from moving traffic as possible.

3. TURN YOUR WHEELS AWAY FROM THE ROAD AND PUT ON THE EMERGENCY BRAKE

The California Department of Motor Vehicles (DMV) recommends pulling your emergency brake, sometimes called the parking brake. If you have to park on a hill or slope, turn the car's wheels away from the road to help prevent the care from rolling into traffic, says the California DMV.

4. STAY IN YOUR VEHICLE

If you're on a highway or crowded road, the Insurance Information Institute (III) recommends that you avoid getting out of your vehicle to look at the damage or fix a mechanical problem. If you need to get out of the car, get your vehicle to a safe place and make sure the road around you is completely clear. If you're stopped on the right-hand side of the road, get out through the passenger-side door.

5. BE VISIBLE

Once you're safely out of the vehicle, prop up your hood to let other drivers know they should proceed with caution. This will alert other drivers that you're broken down, according to the NMA.

6. SET UP FLARES OR TRIANGLES

Place flares or triangles with reflectors behind your car to alert other drivers to the location where you've stopped, says the III.

7. CALL FOR HELP

Call or use an app to get a tow truck, mechanic or roadside assistance to come help. your insurance company or other provider who may be able to help. If you're in an emergency situation or are not sure who to contact, call 911 or the local police for help.

Hope this helps :)

Answer:

The condition in which a problem exists

Explanation:

Context is the situation surrounding information, e.g. if you don't understand a word in a passge you can look for "context clues" where you use surrounding words to infer the meaning of the unknown one

Answer:Bio team

Explanation:

Flip-flops are normally used for all of the following applications, except  logic gates.

Flip flops are known to be tools that are used for counting. They come in different ranges.

Note that Flip flops are one that can be seen on counters, storage registers, and others and as such, Flip-flops are normally used for all of the following applications, except  logic gates.

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In the CGS system, the unit of charge is the charging unit (ESU). Also known as "Statistical Pendant" (StatC). In the CGS system, the load unit is the electromagnetic unit (E.M.E.).

The e.s.u. of charge, also known as franklin or statcoulomb, is the charge such that two similar q=1statC charges at a space of 1cm from each other exert an electrostatic force of 1dyn on each other.

The e.m.u. of current, also called the biot or abampere, is the current such that two infinitely-long straight, parallel conductors carrying 1abA of current and separated by 1cm exert a magnetostatic force of 2dyn on each other.

The relations between these units are such that

\(\frac{1 statC}{1 abA * 1s} = \frac{1 statC}{1abC} = \frac{1}{C} = \frac{1 statA}{1abA} = \frac{\frac{1 statC}{s} } {1 abA}\)

where c is the speed of light.

The ESU and EMU systems of electromagnetic units are different and they should generally be considered separate and independent (if relatively similar), and they do not coincide with the gaussian set of electromagnetic units.

For example, since the electrical displacement vector D is defined as \(E + 4\pi P\) in the ESU system and \(\frac{1}{c^{2} } E + 4\pi P\) the EMU system, it is not possible to exchange the formulas of one system for another without using a formula dictionary like the one at Jackson's end. There is not. classical electrodynamics.

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It is to be noted that all UHRS platforms are optimized for the popular kinds of internet browser applications.

The Universal Human Relevance System (UHRS) is a crowdsourcing platform that allows for data labeling for a variety of AI application situations.

Vendor partners link people referred to as "judges" to offer data labeling at scale for us. All UHRS judges are bound by an NDA, ensuring that data is kept protected.

A browser is a software tool that allows you to see and interact with all of the knowledgeon the World Wide Web. Web sites, movies, and photos are all examples of this.

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Answer:

1. 4/d and 1

2. Engineering tech with 3, Engineer with 1, and Scientist with 2

Explanation:

I'm pretty sure but tell me if im wrong

Control transformers generally have two primary terminals and two secondary terminals connected to the primary and secondary leads.

The primary terminals are where the input power is connected, typically from the mains power supply. These terminals are responsible for receiving the primary voltage and current that will be transformed by the transformer.

The secondary terminals are where the transformed voltage is available for use in the control circuit. These terminals provide the stepped-down voltage required for control devices, such as relays, solenoids, or other control components connected to the secondary side of the transformer.

The primary and secondary terminals are designed to be isolated from each other, meaning there is no direct electrical connection between the primary and secondary sides of the transformer. This isolation ensures safety and prevents potential hazards by maintaining electrical separation between the input power and the control circuit.

The primary and secondary terminals of a control transformer are usually labeled to indicate the correct connection points. The primary terminals may be labeled with designations such as "H" (hot) and "N" (neutral), depending on the specific application and local electrical standards. Similarly, the secondary terminals may be labeled as "X1" and "X2" or "1" and "2" to indicate the polarity of the secondary winding.

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Control transformers generally have two primary terminals and two secondary terminals connected to the primary and secondary leads.

The primary terminals are where the input power is connected, typically from the mains power supply. These terminals are responsible for receiving the primary voltage and current that will be transformed by the transformer.

The secondary terminals are where the transformed voltage is available for use in the control circuit. These terminals provide the stepped-down voltage required for control devices, such as relays, solenoids, or other control components connected to the secondary side of the transformer.

The primary and secondary terminals are designed to be isolated from each other, meaning there is no direct electrical connection between the primary and secondary sides of the transformer. This isolation ensures safety and prevents potential hazards by maintaining electrical separation between the input power and the control circuit.

The primary and secondary terminals of a control transformer are usually labeled to indicate the correct connection points. The primary terminals may be labeled with designations such as "H" (hot) and "N" (neutral), depending on the specific application and local electrical standards. Similarly, the secondary terminals may be labeled as "X1" and "X2" or "1" and "2" to indicate the polarity of the secondary winding.

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