Technician A that shielding gas nozzles may have different shapes. Technician B says that gelding gas nozzles is attached to the shielding gas cylinder. Who is right?

Answer:

The road will narrow

P.S. please add more information when asking a question

We can see here that the law of resistivity, also known as Ohm's law, states that the electrical resistance of a conductor is directly proportional to its resistivity and length, and inversely proportional to its cross-sectional area.

The Law of resistivity can be mathematically represented as:

R = ρ × (L / A)

Where:

R is the electrical resistance of the conductor,

ρ (rho) is the resistivity of the material,

L is the length of the conductor, and

A is the cross-sectional area of the conductor.

The resistivity (ρ) is a characteristic property of a material that quantifies its ability to resist the flow of electric current. It depends on the nature of the material, its temperature, and sometimes its purity. Resistivity is measured in ohm-meters (Ω·m).

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Let f(z) = (4z ² + 2z) / (2z ² - 3z + 1).

First, carry out the division:

f(z) = 2 + (8z - 2) / (2z ² - 3z + 1)

Observe that

2z ² - 3z + 1 = (2z - 1) (z - 1)

so you can separate the rational part of f(z) into partial fractions. We have

(8z - 2) / (2z ² - 3z + 1) = a / (2z - 1) + b / (z - 1)

8z - 2 = a (z - 1) + b (2z - 1)

8z - 2 = (a + 2b) z - (a + b)

so that a + 2b = 8 and a + b = 2, yielding a = -4 and b = 6.

So we have

f(z) = 2 - 4 / (2z - 1) + 6 / (z - 1)

or

f(z) = 2 - (2/z) (1 / (1 - 1/(2z))) + (6/z) (1 / (1 - 1/z))

Recall that for |z| < 1, we have

\(\displaystyle\frac1{1-z}=\sum_{n=0}^\infty z^n\)

Replace z with 1/z to get

\(\displaystyle\frac1{1-\frac1z}=\sum_{n=0}^\infty z^{-n}\)

so that by substitution, we can write

\(\displaystyle f(z) = 2 - \frac2z \sum_{n=0}^\infty (2z)^{-n} + \frac6z \sum_{n=0}^\infty z^{-n}\)

Now condense f(z) into one series:

\(\displaystyle f(z) = 2 - \sum_{n=0}^\infty 2^{-n+1} z^{-(n+1)} + 6 \sum_{n=0}^\infty z^{-n-1}\)

\(\displaystyle f(z) = 2 - \sum_{n=0}^\infty \left(6+2^{-n+1}\right) z^{-(n+1)}\)

\(\displaystyle f(z) = 2 - \sum_{n=1}^\infty \left(6+2^{-(n-1)+1}\right) z^{-n}\)

\(\displaystyle f(z) = 2 - \sum_{n=1}^\infty \left(6+2^{2-n}\right) z^{-n}\)

So, the inverse Z transform of f(z) is \(\boxed{6+2^{2-n}}\).

Answer:

The major difference between a machine screw and a bolt is the way they are used. A machine screw is designed to be threaded into a tapped hole or nut, while a bolt is designed to pass through a hole in a part and then be secured with a nut on the other side.

Machine screws have a uniform diameter along their entire length and are typically threaded all the way to their head. They are commonly used in metalworking applications where a tight fit is required. Bolts, on the other hand, come in a variety of lengths and diameters and are usually partially threaded, with an unthreaded shank section that passes through the hole in the parts being joined.

Another difference between machine screws and bolts is that machine screws are generally smaller and used for lighter-duty applications, while bolts are larger and used for heavier-duty applications. Bolts are often used in construction, automotive, and other heavy-duty applications where high strength and durability are required.

Answer:

So 1/Rt=1/4+1/4+1/2=4/4 = 1 so Rtotal=1

The total resistance of three resistors in parallel with values of 2 ohms, 4 ohms, and 4 ohms is 1 ohm.

The impediment to current flow in an electrical circuit is quantified by resistance. The Greek letter omega represents the unit of measurement for resistance, known as ohms.

The equivalent resistance will also be equal to R/n, where R is the value of the resistor. n is the total number of resistors in the combination if three or more resistors of the same value are connected in parallel.

As the resistors are connected parallelly, the resistance of all the resistors will be greater than the results. The calculation will be smaller than all resistors.

1 / Rt = 1 / 4 + 1 / 4 + 1 / 2 = 4 / 4 = 1

Therefore, the total resistance of three resistors in parallel is 1 ohm.

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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: 210 jouls

Explanation:The work done by the student can be calculated using the formula:

Work = Force x Distance x Cosine(theta)

where Force is the force applied on the ball, Distance is the distance moved by the ball, and theta is the angle between the force and the direction of motion (in this case, theta is 0 because the force is applied in the upward direction, which is the same as the direction of motion).

Since the ball is lifted vertically, the angle between the force and the direction of motion is 0, so cosine(theta) is 1. Therefore, we can simplify the formula to:

Work = Force x Distance

Substituting the given values, we get:

Work = 30.0 N x 7.00 m

Work = 210.0 J

Therefore, the student completed 210.0 joules of work in lifting the ball

Answer:

35

Explanation: I really dont even know, I just used up all my tries on it and got it wrong on every other thing i chose. So it's 35 i believe cause its the only answer i didnt choose.

Answer:

B

Explanation:

Answer:

The answer is B

Explanation:

Answer:

Evaporation is a physical process by which a liquid transforms into a gas or vapor phase. It occurs when the temperature of the liquid is increased, which causes the kinetic energy of the liquid molecules to increase. This increased kinetic energy allows some of the liquid molecules to break free from the surface of the liquid and enter the gas or vapor phase.

At the molecular level, a liquid is made up of molecules that are held together by intermolecular forces. These forces are responsible for keeping the molecules in close proximity to one another, creating a cohesive liquid state. However, not all of the molecules in a liquid have the same energy. Some molecules have more energy than others due to random collisions with other molecules or from absorbing heat.

As the temperature of the liquid increases, the average kinetic energy of the molecules also increases. This means that some of the molecules in the liquid will have enough energy to overcome the intermolecular forces that hold them in the liquid state. These molecules will break free from the surface of the liquid and enter the gas or vapor phase, a process known as evaporation.

The molecules that escape from the liquid during evaporation do not do so randomly. Instead, the molecules that have the highest kinetic energy are the most likely to escape, as they have enough energy to overcome the intermolecular forces holding them in the liquid state. This means that the molecules that are left behind in the liquid have a lower average kinetic energy than the molecules that have escaped. As a result, the liquid's temperature decreases as evaporation occurs, as the higher energy molecules are removed from the system.

Explanation:

In summary, the escape of molecules during evaporation is the result of an increase in the average kinetic energy of the liquid molecules due to heating. The molecules with the highest kinetic energy overcome the intermolecular forces that hold them in the liquid state, allowing them to escape and enter the gas or vapor phase. This process continues until the liquid is completely evaporated or until the temperature of the liquid reaches equilibrium with its surroundings.

Answer:

53.3

Explanation:

4×14=56

56÷1.05=53.3

In order to draw the locus, we can construct a circle with a radius of 1696.62mm centered at the center of the culvert.

The diameter of the wheel is given as 540mm, so the radius of the wheel is half of that: 540mm / 2 = 270mm. The circumference of the wheel can be calculated as 2π times the radius: 2π × 270mm

≈ 1696.62mm.

Since the circumference of the wheel is approximately 1696.62mm and point P traces out a circle, the locus of point P will be a circle with a circumference of 1696.62mm.

Hence, to draw the locus, we can construct a circle with a radius of 1696.62mm centered at the center of the culvert.

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The SPST 12-volt DC master switch is used to turn on and off the power to a device.

What is device?

A device is a physical piece of hardware or software that performs one or more computational functions within a computer system. It can either offer input to the computer or accept output from it. A device is any electronic element that has some computational capability and can install firmware or third-party software. A computer mouse, speakers, printer, and microphone are examples of common hardware. A device is sometimes known as an appliance, gadget, or electronic instrument.

The purpose of the SPST 12 volt DC master switch is to provide a way to turn on and off the power to a device. This switch is typically used to control the power to a lights or other electrical devices.

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Answer:

186.28 for number 4 and im sorry i dont know the other one

Explanation:

claiming points because question is old + no keywords in title

Answer:

pre engineered

With an pre engineered system, the amount of suppression agent, pipe size and length, number of fittings, nozzle types, and flow rates are determined by factory and laboratory testing.

With a pre-engineered system, the amount of suppression agent, pipe size and length, the number of fittings, nozzle types, and flow rates are determined by factory and laboratory testing.

A pre-engineered system may be defined as a type of system that significantly has predetermined flow rates, nozzle pressures, and quantities of extinguishing agent.

It also has specific pipe sizes, maximum and minimum pipe lengths, flexible-hose specifications, numbers or fittings, and the number and types of nozzles.

The two common types of fire suppression systems are engineered and pre-engineered systems. An engineered fire suppression system works by flooding an entire room with a clean agent. Clean agents are gases that suppress fires without harming humans or equipment.

Therefore, with a pre-engineered system, the amount of suppression agent, pipe size and length, the number of fittings, nozzle types, and flow rates are determined by factory and laboratory testing.

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Answer:

1028.1184 Ohms

Explanation:

Given the following data;

Assuming the temperature coefficient of resistance for carbon at 0°C is equal to 0.0006 per degree Celsius.

To find determine its new resistance, we would use the mathematical expression for linear resistivity;

\( R_{89} = R_{0} + R_{0}(\alpha T) \)

Substituting into the equation, we have;

\( R_{89} = 976 + 976*(0.0006*89) \)

\( R_{89} = 976 + 976*(0.0534) \)

\( R_{89} = 976 + 52.1184 \)

\( R_{89} = 1028.1184 \ Ohms \)

Answer:

Service-entrance conductors can be spliced or tapped per 110.14, 300.5(E), 300.13, and 300.15 [230.46].

Explanation:

Service entrance conductors (aka, "service feed wire") run from the weather-head (exterior point of attachment) from the utility pole to the electric panel (usually the circuit breaker box). For most homes, the service entrance conductor will be located on or near the roof and tie into the overhead electrical lines.

Answer:

B

Explanation:

Because you want to concentrate on your surroundings and not tune things out.

Answer:

D large amounts of labor

Explanation:

Answer:

an inline fuse.

Explanation:

A jumper wire can be defined as a thin electrical wire that has a connector or pin at both ends, thus, making it possible to use for interconnecting the components of a test circuit, breadboard or any other prototyping tool (electronic circuit).

Also, power glass are designed to be used in automobile vehicles so as to enable the lowering or raising of the windows (glass) through the press of an electronic switch or button rather than the use of a winding handle.

Jumper wires used to move a power glass when the battery is disconnected must have an inline fuse, so as to offer the electronic component (power glass) sufficient protection against excessive current or voltage level that is capable of destroying it.

The structural element that is preventing the chandelier from causing cracks on the roof is option B. plate.

It is firmly fastened to a wood block or joist. Make sure the ceiling box is rated to sustain your chandelier fixture as the most of them can support 50 to 75 pounds. Remove the present ceiling fan or light fixture.

Therefore, To hold it, The finest option is a heavy, robust chain that is split on the side (never on the bottom). There is a base plate on some chandeliers. The chandelier is bolted onto the base plate once it has been put on the ceiling.

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See options below

A column

B. plate

C beam

D. true

Answer:

Tough question but here is my opinion (if you didn't know its talking about whether some food should be labeled or not)

I think they should include labels, because if they didn't there wouldn't be the items to make it included which some people may have severe allergy attacks.

The primary grounds of debate about genetically modified food (GM food or GMO food) are whether such food should be labeled, the role of government regulators, the impartiality of scientific research and publishing. This is the primary cause for the ongoing controversy around GMO production.

A genetically modified organism (GMO) is a living creature whose DNA has been changed using genetic engineering techniques. Humans have utilized breeding strategies to change creatures for thousands of years.

Livestock, over millennia, corn, and even dogs have been carefully selected to have particular desired features. The majority of GMO crops produced today were created to assist farmers in preventing crop and food loss and controlling weeds.

The following are the three most prevalent features seen in GMO crops: Resistance to certain harmful insects Tolerance to some weed-controlling pesticides.

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Answer:

1. It is used to test/check the continuity of the circuit

a. Ohmmeter

2. Is a physical  device used to connect electronic test equipment to a device under test

a. Test probes

3. A device inserted to a convenience outlet to conduct electric current

a. Plug

4. Is a stranded wire used to temporary wiring installation and commonly used in extension cord assembly

a. Duplex cord

5. It is a pocket size tool used to test the line wire or circuit if there is a current in it.

a. Test light

6. An instrument used to measure the amount of electrical current intensity in a circuit

b. Ammeter

7. A pocket sized tool used to test the line wire or circuit if there is current in it.

a. Test light

8. A measuring tool used to measure the length of an object in centimeter in it

b) Ruler

9. It is used to measure the diameter of wires/conductors in circular mills. It can measure small and big sizes of wires

a. Micrometer

10. It is used to measure the voltage, resistance and current of a circuit. It is connected in parallel or series with the circuit depending on what to measure

a) Volt-Ohm-milliammeter

11. It is the measuring tool used to measure length, width and thickness of short object and in sketching straight line

Foot rule/ ruler

Explanation:

1. An Ohmmeter tests resistance of a circuit and therefore, indicates if the circuit has continuity (connectivity) by measuring the resistance to the current it sends through the circuit, while the circuit power is switched off

2. A test probe connects a testing equipment to a Device Under Test (DUT)

3. A plug is used to connect an electric appliance to the mains power supply by fitting it into the mains power outlet

4. A duplex cord is used for temporary wiring to supply power in an extension cord assembly

5. A test light is used to determine if a circuit has electric current flowing in it

6. An ammeter measures the amount of direct or alternating current flowing in a circuit

7. Test light is used to check the presence of an electric current in a circuit

8. A ruler is used to measure length and it is marked in cm or in

9. A micrometer measures the diameter of wires placed in between the anvil and spindle

10. A Volt-Ohm-Milliammeter (VOM), is also known as a multimeter that measures voltage, current, and resistance of a circuit

11. A foot rule/ ruler, measures the dimensions of objects that are flat and short

Answer:

horizontal stabilizers also located in the tail of the airplane

Explanation: