How did the use of iron did not affect the life of early men in any way?

Electric motors are mechanical energy converters that typically produce rotating motion from electrical energy. They can be summed up as machines that produce motive power through the usage of electricity.

Electric motors not only offer a straightforward and effective way to produce high levels of drive output, but they are also simple to scale down, making it possible to incorporate them into other pieces of machinery and equipment. They are used in a wide range of applications in both industry and daily life as a result.

Among the many 19th-century scientists who contributed to the creation and advancement of electric motors, the British scientist Michael Faraday is acknowledged as having had a particularly significant impact. Faraday carried out a successful experiment in 1821 in which he used a magnet and a magnetic field produced by an electric current to turn a wire.

Therefore, Electric motors are mechanical energy converters that typically produce rotating motion from electrical energy. They can be summed up as machines that produce motive power through the usage of electricity.

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follow these steps:

Start by cutting a strip of paper or cardstock to a length of 50mm. This will be the base of your scale.

On the left side of the strip, mark a point at the 0mm mark, this will be the starting point of your scale.

Using a ruler, mark off 10mm increments to the right. You will have a total of 5 marks (10mm, 20mm, 30mm, 40mm, and 50mm)

At the 30mm mark, mark a point that is 3mm to the right of the 30mm mark, this will be the end of your scale.

Lastly, use a ruler to divide each 10mm segment into 1mm increments. You will have a total of 30mm on your scale that can be read to 1mm.

Your scale should look like this:

0mm | 10mm | 20mm | 30mm | 30.3mm | 40mm | 50mm

It's important to note that this a plain scale and it does not have any graduation marks on it, it is intended to be used as a reference to measure the length of an object and compare it with the scale.

I believe the answer is A, explore the test, learn the content, follow test day rules. Hope this helps! Please give me brainliest :)

According to the NC SDIP (North Carolina Safe Driver Incentive Plan), if you get a ticket for going 45 MPH in a 35 MPH zone, you would see an increase in insurance premiums for 30%, 3 years.

Here,

NC SDIP is a program created by the North Carolina Department of Insurance to encourage safe driving practices. The program assesses insurance points to drivers based on certain traffic violations or accidents.

So,

If you get a traffic ticket, the number of insurance points you receive will depend on the type of violation. If you get a ticket for going 45 MPH in a 35 MPH zone, you would receive two insurance points.

This would result in a 30% increase in insurance premiums for the next three years.

Therefore option B is correct.

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The Answers for the given question are as follow:

a. The model speed is approximately 31.62 rev/min.

b. The scale ratio is approximately 0.0417.

c. The estimated volume flow rate through the model is approximately 943.44 m^3/s.

d. The bearing thrust of the model is approximately 9.72 kN.

To calculate the required values for the water turbine model, we can utilize the concept of dynamic similarity.

a. To find the model speed, we can use the principle of geometric similarity, which states that the ratio of speeds is equal to the ratio of the square roots of the head. Thus:

  Model speed = (√(Model head))/(√(Full-size head)) * Full-size speed

              = (√4.9/√16.5) * 93.7 rev/min

              = 31.62 rev/min

b. The scale ratio can be determined using the equation:

  Scale ratio = (√(Model power))/(√(Full-size power))

             = (√37.5kW)/(√27MW)

             ≈ 0.0417

c. To estimate the volume flow rate through the model, we can use the power equation:

  Model power = (Model efficiency) * (Volume flow rate) * (Model head) * (Gravity)

  37.5kW = 0.88 * (Volume flow rate) * 4.9m * (9.81m/s^2)

  Solving for the volume flow rate:

  Volume flow rate = 37.5kW / (0.88 * 4.9m * 9.81m/s^2)

                   ≈ 943.44 m^3/s

d. To calculate the bearing thrust of the model, we can use the principle of force similarity:

  Bearing thrust model = (Model power / Full-size power) * Full-size bearing thrust

                      = (37.5kW / 27MW) * 7.0GN

                      ≈ 9.72kN

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Answer:

The answer is no

Explanation:

Answer:

Any engineering job would be good YOU should be the one choosing which job.

Explanation:

Engineering is a great outlet for the imagination, and the perfect field for independent thinkers.

Personally I prefer astro-engineering, because space is the next frontier, so this section of engineering has a lot of fresh opportunities, and is absolutely fascinating to me.

*However,* its *your* career, and engineering is a huge field with tons of different opportunities for a variety of interests, so just find what you're passionate about!

Answer:

they are both right

Explanation:

Answer:true

Explanation:

Because when u spray it blows fibers into the air

Answer:

false

Explanation:

Answer:

True

Explanation:

Answer:

ACCIDENT PREVENTION RECOMMENDATIONS  

Fatal Fact made us to understand some of the prevention techniques as stated below.

1. Use approved ground fault circuit interrupters or an assured equipment grounding conductor program to protect employees on construction sites.  

2. Use equipment that provides a permanent and continuous path from circuits, equipment, structures, conduit or enclosures to ground.

3. Inspect electrical tools and equipment daily and remove damaged or defective equipment from use until it is repaired.

Explanation:

In order to gain a better understanding of the answer above let explain some terms

Ground Fault Circuit Interrupters :

    A ground fault circuit interrupter (GFCI), or Residual Current Device (RCD) is a type of circuit breaker which shuts off electric power when it senses an imbalance between the outgoing and incoming current. The main purpose is to protect people from an electric shock caused when some of the current travels through a person's body due to an electrical fault such as a short circuit, insulation failure, or equipment malfunction.

So the first statement is implying that in order to prevent this accident that  this device (GFCI) should have  been used in that  construction site, or as  an alternative before the  construction commenced  the company should have drafted a lay down conductor program(i.e. a step by step conductor program) that assured equipment grounding  in order to protect employees on construction sites

The scope of BS computer science in Pakistan is quite vast

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The general form of the capacitor voltage for the electrical network shown in Figure P4.4 is V(t) = 1/2^e^-10^tsin20t

A capacitor is an electronic component that stores electrical energy in an electric field. It is typically made up of two conductive plates separated by a non-conductive material, or dielectric.

When a voltage is applied across the plates, an electric field is created between them, which causes a build-up of electric charge on the plates. The amount of charge that can be stored on the plates depends on the capacitance of the capacitor, which is determined by the size and spacing of the plates, as well as the type of dielectric material used.

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The operations that are not a part of defensive operation are Excessive speed, Failure to maintain a proper lookout, Impaired boating, Distracted boating.

Operating defensively is important to avoid a boating accident. Being a responsible boat operator means being aware of your surroundings, acting proactively, and taking appropriate measures to avoid putting yourself and others in danger.

The following are some things you should not do when operating a boat defensively:

Excessive speed - It's important to keep your speed under control, especially when operating in crowded waters or areas with poor visibility. Even if you are operating at a safe speed, other boaters may not be, so it's important to keep a lookout for other boats and respond quickly if necessary.

Failure to maintain a proper lookout - This is one of the most common causes of boating accidents. Boaters should always keep a lookout for other boats, buoys, floating debris, and other hazards that could pose a danger. In addition to keeping a lookout, boaters should also be aware of the water depth and conditions and adjust their speed and course accordingly.

Impaired boating - Operating a boat while under the influence of drugs or alcohol is extremely dangerous and can result in serious injury or death. It's important to always stay sober while operating a boat, as well as to encourage others to do the same. If you plan to consume alcohol while on the water, make sure you have a designated driver or arrange for alternative transportation.

Distracted boating - Just like driving a car, operating a boat requires your full attention. Avoid using your phone, eating, or engaging in other activities that could take your attention away from the water. In addition, make sure that your passengers are seated safely and not causing any distractions.

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Answer:

a. 0.6 W/mK b. 45 kJ c. 0.025 m²K/W

Explanation:

a. Determine the thermal conductivity (k) for the insulating material.

The rate at which heat is transferred across the insulating material P = kAΔT/L where K = thermal conductivity, A = area of insulating material = 25 cm × 25 cm = 0.25 m × 0.25 m = 0.0625 m², ΔT = temperature difference between inside and outside = 10.0 °C = 10.0 K and L = thickness of insulating material = 15 mm = 0.015 m

So, making k subject of the formula, we have

k = PL/AΔT

Now, P = 25.0 W = heat delivered to box = heat delivered to insulating material per second.

k = 25.0 W × 0.015 m/(0.0625 m² × 10.0 K)

k = 0.375 Wm/(0.625 m²K)

k = 0.6 W/mK

b. Find the energy transferred (Q) through the material after a half hour.

Since quantity of energy transferred Q = Pt where P = heat delivered to box = heat delivered to insulating material per second = 25.0 W and t = time  the heat is delivered = 1/2 h = 0.5 h = 0.5 × 60 min = 30 min × 60 s/min = 1800 s

So, Q = 25.0 W × 1800 s

Q = 45000 J

Q = 45 kJ

c. Find the R-value of the insulation.

R - value, R = L/k = 0.015 m/0.6 W/mK = 0.025 m²K/W

Answer:

A&C

Explanation:

breathing deeply is relaxing

talking with a friend can helping

Answer:

A & C

Explanation:

Talking with a friend can help unload the stress you have and breathing deeply can help you relax. Ignoring your body will just make stress worse.

Answer:

Due to his red hair, Vivaldi was known as the Red Priest

Answer:

violinist

Explanation:

The name of that robot of ai who dismantled and a unbelievable answer of an question​ is Sophia

Sophia the robot is very famous now. The robot has become very popular and has traveled to different places like stages, magazines, and conferences. It even talked at the United Nations.

Sophia is a robot that people think will be very important for AI, but some people believe it's just a pretend thing to make people like the company better. The person in charge of making Sophia says it's like a computer - it helps create other things. The robot can use many different computer programs.

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Answer:

The Information Age began around the 1970s and is still going on today. It is also known as the Computer Age, Digital Age, or New Media Age.

Explanation:

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Answer:

It's a dark story about a skilled assassin who was taken away from her family at a young age and grew up isolated, leading to the deterioration of her mental health. She began seeing a figure in the mirror who became her only friend and confidant. Despite the figure's warning, she grew close to her comrades and suffered a great loss when they were killed on a mission. When she asked her master for permission to give them a proper funeral, he refused, causing her to snap and kill him. The figure in the mirror continued to influence her, and her life became even more cruel and cold. The story leaves the girl's fate ambiguous, but it seems that she is still wandering, waiting for release from her pain.

Answer:Why should a driver conduct a pre-entry check? Allows the driver to check for anyone behind the vehicle, Allows the driver to check for low or flat tires, Allows the driver to check for leaking fluids.

Explanation:

Modern manufacturing has significantly advanced to cater to customization and meet individual needs.

Few examples of how modern manufacturing allows for customization:

1)3D Printing/Additive Manufacturing: 3D printing enables the production of highly customized items by building layer upon layer of material.

This technology allows for the creation of unique shapes, sizes, and designs, enabling customization on a personal level.

From customized prosthetics to personalized jewelry, 3D printing revolutionizes manufacturing by tailoring products to individual requirements.

2)Mass Customization in Apparel: Traditional manufacturing processes often involved producing items in standard sizes, limiting options for consumers.

However, modern manufacturing techniques, such as computer-aided design (CAD) and computer-aided manufacturing (CAM), allow for mass customization in apparel.

By utilizing body scanning and virtual fitting technologies, companies can offer custom-made garments that fit an individual's unique measurements and style preferences.

3)Customized Electronics: With advancements in technology, manufacturers can now offer customization options for electronic devices.

Customers can personalize specifications such as memory capacity, display size, and processing power to suit their needs.

Some companies even allow customers to design the appearance and choose specific features of their gadgets, ensuring that the final product aligns with their preferences.

4)Personalized Food and Beverages: Manufacturing has extended to the food and beverage industry, enabling customization in culinary experiences.

Companies now offer personalized nutrition plans, customized meal kits, and even 3D-printed food tailored to individual dietary requirements and taste preferences.

5)Automotive Industry: The automotive industry has embraced customization, allowing customers to configure various aspects of their vehicles, including color, trim, interior options, and additional features.

Some manufacturers offer online platforms where customers can design and visualize their personalized cars before ordering.

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Answer:

Fully Automated

Periodic Maintenance Activities

Answer:

Explanation:

Assuming linear circuit elements being operated within their ratings, ...

For constant resistance, current is proportional to voltage. For a circuit in which resistance is not affected by voltage or temperature, the resistance will stay the same when voltage increases. Then the current will be proportional to the voltage.

__

Additional comments

In some circuits, resistance is a function of temperature. An incandescent light, for example, increases its resistance as its temperature goes up. When voltage is increased, resistance is increased according to the increased power dissipation. Current increases, but not proportionally to voltage.

Some other devices also exhibit this effect, but their resistance is designed to increase to a high enough level that overall circuit current actually decreases when voltage exceeds a certain threshold.

Convert to SI units, calculate, convert from base SI units to the desired units. Route 1: 52 minutes, Route 2: 48 minutes.

SI unit is an international system of measurements that are used universally in technical and scientific research to avoid the confusion with the units. Having a standard unit system is important because it helps the entire world to understand the measurements in one set of unit systems. There are several SI units used in physics that are used to express the different quantities.

The quantities can be classified into two groups i.e. base units and derived units.

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That statement is false in most states.

Any citizen within the jurisdiction, whether male or female, adult or minor, may accumulate at any time, or refrain from accumulating, as much or as little as he or she wishes.

Such a decision on the part of the citizen is of no interest or concern to the Department of Motor Vehicles.

Note:  This Brainly answer is not intended as legal advice. You are responsible for confirming the legality of your decisions and actions with local counselors within the jurisdiction of your own country, state, province, county, city, village, hamlet, or settlement.  Moreover, minors are advised to confirm them with their parents or guardians.    

That statement is false in most states. Any citizen within the jurisdiction, whether male or female, adult or minor, may accumulate at any time, or refrain from accumulating, as much or as little as he or she wishes.

Such a decision on the part of the citizen is of no interest or concern to the Department of Motor Vehicles.

A motor vehicle, often referred to as a motorized vehicle or an automotive vehicle, is a self-propelled land vehicle, typically with wheels, that is used for the movement of people or goods and does not run on rails (unlike trains or trams).

An engine or motor, typically an internal combustion engine or an electric motor, or any mix of the two, such as hybrid electric vehicles and plug-in hybrids, provides the vehicle's propulsion.

Therefore, That statement is false in most states. Any citizen within the jurisdiction, whether male or female, adult or minor, may accumulate at any time, or refrain from accumulating, as much or as little as he or she wishes.

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