As new students begin to arrive at college, each receives a unique ID number, 1 ton. Initially, the students do not know one another, and each has a different circle of friends. As the semester progresses, other groups of friends begin to form randomly. There will be three arrays, each aligned by an index. The first array will contain a queryType which will be either Friend or Total. The next two arrays, students1 and students2, will each contain a student ID. If the query type is Friend, the two students become friends. If the query type is Total, report the sum of the sizes of each group of friends for the two students. Examplen=4queryType = ['Friend', 'Friend', 'Total'] student1=[1,2,1]student2=[2,3,4]The queries are assembled, aligned by index: Input from stdin will be processed and passed to the function as follows: The first line contains an integern, the number of students. The next line contains an integerq, the number of queries. Each of the nextqlines contains a string queryType[i] where1≤i≤q. The next line contains an integerq, the number of queries. Each of the nextqlines contains a string students1[i] where1≤i≤q. The next line contains an integerq, the number of queries. Each of the nextqlines contains a string students2[i] where1≤i≤q. Sample Case 0 Sample Input 0 STDIN −032 Friend → query = [’Friend’, ’Tota Total 21222​ Function −0.0→n=3→ queryType [ ] size q=2→ students 1[] size q=2→ students 1=[1,2]→ students 2[] size q=2→ students2 =[2,3]​ Sample Output 0 3 Fynlanation 0

The first-order kinematic coefficient of the gear train is 0.028. Gear 8 rotates in the clockwise direction with a speed of 42.86 rev/min.

The first-order kinematic coefficient of the gear train is a measure of the efficiency of power transmission through a gear train. It is defined as the ratio of the output speed of the final gear to the input speed of the first gear. In this case, the first-order kinematic coefficient is 0.028, which means that the output speed of gear 8 is only 2.8% of the input speed of gear 4.

To determine the rotational direction and speed of gear 8, we first need to identify the gear ratios for each pair of gears in the train. Starting from gear 4, we have a gear ratio of 44/15, which means that gear 5 rotates at a slower speed than gear 4 but with higher torque. Similarly, the gear ratio between gears 5 and 6 is 33/36, which means that gear 6 rotates at a faster speed than gear 5 but with lower torque.

Finally, we can calculate the speed and direction of rotation of gear 8 by multiplying the gear ratios of all the gears between gear 4 and gear 8. We have:

44/15 * 33/36 * 487/36 = 42.86

This means that gear 8 rotates at a speed of 42.86 rev/min in the clockwise direction.

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Answer:

When 1 mole of water undergoes a change in state from liquid to gas, it means that the water molecules transition from a liquid phase to a gaseous phase. This change in state is known as vaporization or evaporation.

In the liquid phase, water molecules are closely packed together and have sufficient intermolecular forces to maintain their cohesive properties. These intermolecular forces, such as hydrogen bonding, hold the water molecules in a relatively fixed arrangement.

However, when heat energy is supplied to the system, it increases the kinetic energy of the water molecules. As the kinetic energy increases, the water molecules gain enough energy to overcome the intermolecular forces holding them together. This leads to the molecules becoming more mobile and transitioning into the gaseous phase.

In the gas phase, the water molecules are widely dispersed and have much higher kinetic energy compared to the liquid phase. They move independently of each other, filling the available space and spreading out to occupy a larger volume.

During this phase transition, the temperature remains constant until all the liquid has converted into gas. This constant temperature is known as the boiling point, and for water at standard pressure, it is 100 degrees Celsius (212 degrees Fahrenheit).

Overall, the qualitative explanation for the change in state from 1 mole of liquid water to 1 mole of gaseous water involves the absorption of heat energy, an increase in molecular kinetic energy, and the breaking of intermolecular forces to allow the water molecules to transition from a liquid to a gas.

Answer:

Kirchhoff's current law (1st Law) states that the current flowing into a node (or a junction) must be equal to the current flowing out of it

Explanation:

The rectifier circuit peak output at 10% is 15.45 V and the peak output at 1% is 16.18 V and fraction of the cycle diode conduct is 7.11% and 2.25%.

An electronic device called a rectifier uses one or more P-N junction diodes to change alternating electricity into direct current. Diodes act as one-way valves that only permit one direction of current flow. Correction is the name given to this action.

The transformer's secondary side has a voltage of

Vrms = Vpri/turn ratio

Vrms = 120/10 = 12 V

Peak voltage and rms voltage have the following relationship:

Vp = Vrms/√2

Vp = 12√2 = 16.97 V

Vd = 0.7 V

We will first determine all the necessary variables for the ripple voltage of 10%, and then for the ripple voltage of 1%.

case (i) 10% of the peak output:

Vavg = Vp - Vd - 0.5Vr is the average output voltage.

Where Vr is the ripple voltage, which is expressed as a percentage of Vp, and Vp is the peak output voltage

Vavg = Vp - Vd - 0.5Vr

Vavg = 15.45 V

ω = √2Vr/Vp - Vd

ω = √2*0.1(Vp-Vd)/Vp - Vd

ω = √2*0.1(16.97-0.7)/16.97 - 0.7

ω = 0.447 rad

Conduction of diode = (ω/2π)*100

Conduction of diode = (0.447/2π)*100

Conduction of diode = 7.11 %

Current average = Iavg = Vavg/R [1 + (Vp - Vd)/2(Vp - Vd)/0.1(Vp-Vd))]

Iavg, or average current, is equivalent to 15.45/1000[1 + (2(16.97 - 0.7)/0.1(16.97-0.7)] or average voltage.

Iavg, or average current, is 0.232 A.

Peak current: Ip = Va/R [1 + 2(Vp - Vd)/2(Vp - Vd)/0.1(Vp-Vd))]

Peak current is expressed as Ip = 15.45/1000[1 + 2](2(16.97 - 0.7)/0.1(16.97-0.7)]

Peak current is 0.449 A, or Ip.

case (ii) 1% of the peak output:

(a) What average output voltage results?

Vavg = 16.18 V

ω = √2*0.01(Vp-Vd)/Vp - Vd

ω = √2*0.01(16.97-0.7)/16.97 - 0.7

ω = 0.1417 rad

Conduction of diode = (0.1417/2π)*100

Conduction of diode = 2.25 %

Average current = Iavg = 0.735 A

(d) What is the peak diode current?

Peak current is expressed as Ip = 16.18/1000[1 + 2](2(16.97 - 0.7)/0.01(16.97-0.7)]

Peak current = Ip = 1.453 A

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We have that the new bulb 's Price is P  is mathematically given as

P= $100.68

Generally the Arithmetic equation for the life time of new bulb  is mathematically given as

life time = old bulb life / (usage per 24 x 365)

Therefore

L= 14,600 / (19 x 365)

L= 2.10 years

Where

old bulb=(2 x 45.9) (1 + 15/100)2.10 x 2 + 16

Old bulb=$181.11

After tax

tax = 181.11(1 - 40%)

tax= $108.66

Therefore

the new bulb 's Price is P

108.66 = P x (1.7986) x (0.6)

P= $100.68

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Thomas Midgley is an American chemist and inventor who is responsible for significant advances in all of the following except the increased efficiency of steam engines, the refrigeration process, and the production of leaded gasoline.  However, he was one of the leading figures responsible for environmental degradation in the 20th century.

Midgley was the inventor of two of the most significant chemical products of the 20th century: Freon, which made possible air conditioning, and tetraethyl lead, which improved engine performance. But it was eventually discovered that these two substances had far-reaching, dangerous effects on the environment and human health.Thomas Midgley is not credited with significant advances in the increased efficiency of steam engines because this was something that was already happening during the industrial revolution. However, he did contribute greatly to the refrigeration process, which he helped make more efficient and affordable.

He was an innovator and inventor who had a tremendous impact on the world we live in today. He was the first person to develop a way to remove lead from gasoline, which helped prevent air pollution, and he helped make refrigeration more affordable and efficient. However, his legacy is marred by the environmental and health problems caused by his inventions, which are still felt today.

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Answer:

Scalability

Explanation:

just took a test and it was right.

Ew Wakefield Hospital has only one portable X-ray machine. The emergency room staff claim to have the greatest need for the machine, but the surgeons in the operating room demand ready access to the machine. The conflict between these two groups is a result of scarcity.

Science and technology are the driving forces behind today's modern medicine, allowing us to identify and treat a range of medical problems. X-ray technology has had a significant impact on medicine, and it is commonly used to diagnose various diseases, making it an essential tool for hospitals.

Despite the advantages, the scarcity of portable X-ray machines creates difficulties for hospital employees, including a dispute between the emergency room and the operating room staff at Ew Wakefield Hospital. There is only one portable X-ray machine available at Ew Wakefield Hospital.

The conflict between the emergency room and the operating room staff is a result of scarcity. Both departments require ready access to the X-ray machine. Scarcity can generate rivalry, competition, and conflict when people and organizations compete for the same resource.

The staff's conflict is a direct result of the lack of accessibility to the X-ray machine. Thus, scarcity can be a significant factor contributing to interpersonal conflict.

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The National Advisory Committee for Aeronautics (NACA), which was the predecessor of NASA, conducted a significant amount of research in the fields of structural and aerodynamic design.

What are some examples of research done by NACA?

Some examples of their work include:

These and other NACA research efforts laid the foundation for many of the advances in aircraft design and aeronautical engineering that we see today, and helped to make air travel safer, more efficient, and more reliable.

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Answer:

They are pressure, temperature, volume, entropy, internal energy, enthalpy, Gibbs function and Helmholtz functions

Answer:

provides the Organization with accurate data analytics ,

provides/ensures strict compliance in the organization,

helps in lowering the cost of managing data in the organization and

provides the data scientists access to the exact data they require to work with

Explanation:

The adoption of a data platform by an organization for the purpose of  handling Data, helps to simplify data governance by :

i)provides the Organization with accurate data analytics ,

ii) provides/ensures strict compliance in the organization,

iii) It helps in lowering the cost of managing data in the organization and

iv) provides the data scientists access to the exact data they require to work with

Answer:

The correct answer is "1341.288 W/m".

Explanation:

Given that:

T₁ = 300 K

T₂ = 500 K

Diameter,

d = 0.2 m

Length,

l = 1 m

As we know,

The shape factor will be:

⇒ \(SF=\frac{2 \pi l}{ln[\frac{1.08 b }{d} ]}\)

By putting the value, we get

⇒       \(=\frac{2 \pi l}{ln[\frac{1.08\times 1}{0.2} ]}\)

⇒       \(=3.7258 \ l\)

hence,

The heat loss will be:

⇒ \(Q=SF\times K(T_2-T_1)\)

       \(=3.7258\times 1\times 1.8\times (500-300)\)

       \(=3.7258\times 1.8\times (200)\)

       \(=1341.288 \ W/m\)

Technical practice incorporates build-time identification of security vulnerabilities in the code is  Penetration testing.

A penetration test, sometimes referred to as a pen test or ethical hacking, is a legitimate simulated cyberattack on a computer system that is carried out to analyze the system's security. This is distinct from a vulnerability assessment.

In order to identify and illustrate the financial effects of a system's vulnerabilities, penetration testers employ the same tools, strategies, and procedures as attackers. Reconnaissance, scanning, vulnerability assessment, exploitation, and reporting are the five stages of a penetration test.

Penetration testing is a technical activity that includes build-time discovery of security vulnerabilities in the code.

Penetration tests are essential to an organization's security because they teach staff members how to respond to any kind of intrusion from a malicious party. Pen tests are a method of determining whether a company's security procedures are actually effective.

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Answer:

2200 watts

Explanation:

# of Watts = Volts × Amps

Have a lovely rest of your day/night, and good luck with your assignments! ♡

Answer:

When a force is exerted on an object it can change the object's speed, direction of movement or shape. Pressure is a measure of how much force is acting upon an area. Pressure can be found using the equation pressure = force / area. Therefore, a force acting over a smaller area will create more pressure

Explanation:

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Answer:

25 psig

Explanation:

The net oil pressure = 85 - 60 = 25 psig

In a transverse wave, the distance between two adjacent crests is equal to the distance between two adjacent troughs.

What is transverse wave?

A transverse wave is a type of wave that moves perpendicular to the direction of the wave. This is in contrast to a longitudinal wave, which moves parallel to the direction of the wave.

An example of a transverse wave is a wave in a rope. When a rope is shaken from side to side, the wave travels along the rope, but the displacement of the rope is perpendicular to the direction of the wave.

Another example of a transverse wave is a light wave, which consists of oscillating electric and magnetic fields that are perpendicular to the direction of the wave's propagation.

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The structure _IO_FILE was defined in the header file stdio.h located in the directory /usr/include/.

This header file is part of the standard library in C and C++ programming languages and provides functions for input and output operations. The _IO_FILE structure is used by the standard library functions for handling files and streams. It contains information about the file or stream, such as its position, buffer, and status flags. The definition of this structure and other related structures can be found in the stdio.h header file, which is included in most C/C++ programs that perform I/O operations.

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TIPS is an acronym in Value Engineering (VE) that stands for Technique, Information, Product, and Schedule.The primary focus of the TIPS approach is to improve the performance of the product or service by using creative and innovative methods to achieve the same results at a lower cost.

It is used to achieve a significant increase in the value of a product or service while lowering its cost. The primary focus of the TIPS approach is to improve the performance of the product or service by using creative and innovacronymative methods to achieve the same results at a lower cost.

Value Engineering (VE) is a systematic approach that is used to improve the value of a product or service. It is a method that is used to optimize the function and cost of a product or service by analyzing its various components and identifying ways to improve its performance while reducing its cost. The goal of value engineering is to achieve the highest possible value for a product or service while minimizing its cost.

TIPS is an acronym that stands for Technique, Information, Product, and Schedule. It is an approach that is used in Value Engineering to improve the performance of a product or service while lowering its cost.

The primary focus of the TIPS approach is to use innovative and creative methods to achieve the same results at a lower cost. By using this approach, a product or service can be optimized to achieve maximum value while minimizing its cost.

TIPS is used in Value Engineering to:Identify techniques that can be used to improve the performance of a product or serviceIdentify information that is needed to improve the performance of a product or serviceIdentify ways to optimize the product or service to improve its value while reducing its costIdentify ways to schedule the work to achieve the best possible results in the shortest possible time.

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Answer:

Weight Percentage of Ash = 3.4

Explanation:

Given - Coal containing 21% ash is completely combusted, and the ash is 100% removed in a water contact scrubber. If 10,000 kg of coal is burned per hour with a scrubber flow rate of 1.0 m3/min.

To find - the weight percentage of the ash in the water/ash stream leaving the scrubber is most nearly ?

Solution -

Given that,

Coal Burned Rate = 10,000 kg/hr

                              = \(\frac{10,000}{60 min} * 1 hr *\frac{kg}{hr}\)

                              = 166.6666 kg/min

⇒Coal Burned Rate = 166.6666 kg/min

Now,

Given that,

Ash content in coal = 21 %

⇒Ash in (coal that burned) = 166.6666 × \(\frac{21}{100}\) kg/min

                                             = 34.9999 ≈ 35 kg/min

⇒Ash in (coal that burned) = 35 kg/min

Now,

We know,

Density of water = 1000 kg/m³

Now,

Water flow Rate = \(1\frac{m^{3} }{min} * density\)

                           = 1000 kg/min

⇒Water flow Rate = 1000 kg/min

Now,

Total Mass flow Rate of (Water + Ash stream) = ( 1000 + 35) kg/min

                                                                           = 1035 kg/min

⇒Total Mass flow Rate of (Water + Ash stream) = 1035 kg/min

So,

Weight Percentage of Ash = (Weight of Ash ÷ Total weight of Stream) × 100

                                            = (35 ÷ 1035) × 100

                                            = 3.38 ≈ 3.4

∴ we get

Weight Percentage of Ash = 3.4

When the inverter clock frequency becomes larger, the dynamic energy dissipated due to charging or discharging in a single clock cycle will increase.

In an inverter, if the clock frequency becomes larger, the dynamic energy dissipated due to charging or discharging in a single clock cycle will increase. This is because dynamic energy is directly proportional to the frequency.

Dynamic energy is given by the formula: E = 0.5 * C * V² * f, where E is the dynamic energy, C is the capacitance, V is the voltage, and f is the frequency. When the inverter clock frequency (f) becomes larger, the overall dynamic energy (E) increases according to the formula. The increase in frequency means that the inverter is switching between charging and discharging more rapidly in a given time period. As a result, more energy is consumed due to the higher rate of charging and discharging.

In conclusion, when the inverter clock frequency becomes larger, the dynamic energy dissipated due to charging or discharging in a single clock cycle will increase.

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Answer:

\(\triangle h=4.935m\)

Explanation:

From the question we are told that:

Liquid density \(\rho=800\)

Diameter of pipe \(d=4cm \approx 0.004m\)

Diameter of venture \(d=10cm \approx 0.010m\)

Specific weight of mercury P_mg \(133 kN/m^3\)

Flow rate \(r=0.05 m^3/s\)

Area A:

            \(A_1=\frac{\pi}{4}0.1^2\\A_1=0.00785m^2\\A_2=\frac{\pi}{4}0.04^2\\A_2=0.001256m^2\\\)

Generally the Bernoulli's equation is mathematically given by

\(\frac{P_1}{\rho_1g}+\frac{V_1^2}{2g}=\frac{P_2}{\rho g}+\frac{V_2^2}{2g}\\\)

Where

\(V_1=\frac{r}{A_1} \\\\ &V_1=\frac{r}{A_2}\)

Therefore

\(P_1-P_2=\frac{Pr^2}{2}(\frac{A_1^2-A_2^2}{A_1^2A_2^2})\)

Generally the equation for pressure difference b/w manometer fluid is given as

\(P_1-P_2=(p_mg-pg)\triangle h\)

Therefore

\((p_mg-pg)\triangle h=\frac{Pr^2}{2}(\frac{A_1^2-A_2^2}{A_1^2A_2^2})\)

\(\triangle h=\frac{\frac{Pr^2}{2}(\frac{A_1^2-A_2^2}{A_1^2A_2^2})}{(p_mg-pg)}\)

\(\triangle h=\frac{\frac{(800)(0.05)^2}{2}(\frac{(0.1)^2-(0.4)^2}{(0.1)^2(0.04)^2})}{(1.33*10^3-800*9.81)}\)

\(\triangle h=4.935m\)

Therefore elevation change is mathematically given by

\(\triangle h=4.935m\)

Tensile stress in a thin wall spherical shell is given by

σ = ( p r ) /2t

This is the type of stress that involves pulling out. it is the opposite of compressive stress.

The tensile stress, σ  at the circumference of the shell is the hoop stress. The value equals that of pressure acting on the area.

Therefore:

σ * 2πr * t = p * πr^2

where

2πr = circumference of a circle

πr^2 = area of a circle

p = internal pressure

t = thickness

σ * 2πr * t = p * πr^2

σ = ( p r ) /2t

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We can see here that the diameter of the main water supply pipe for a house typically ranges from 3/4 to 1 inch.

Diameter refers to the line segment that passes through the center of a circle, sphere, cylinder, or any other circular object, connecting two points on its circumference.

It is the longest possible straight line segment that can be drawn within a given circle, dividing it into two equal halves.

Here is a table of the typical pipe diameters for different types of homes:

Type of Home                           Pipe Diameter

Single-family home           3/4 to 1 inch

Multi-family home                    1 to 1-1/2 inches

Commercial building          1-1/2 to 2 inches

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Answer:

the answer is airfoil

Explanation:

hope the answer helps

Answer:

It is called the airfoil

Explanation:

The answer is D. ( airfoil) because an airport is a place. Air raid is a attack in the air and that only leaves airfoil, so airfoil is the correct answer.(Hoped that helped)

Answer:

Efficiency is defined as any performance that uses the fewest number of inputs to produce the greatest number of outputs. Simply put, you're efficient if you get more out of less.

Explanation:

Answer:

Option 1

Explanation:

As the team has already submitted the plans for the part drawing, the best way to proceed would be how it was given in the plans. Hence, the option to be selected :

Answer:

The first option

Explanation:

Team member 1 suggests an orthographic top view because that is how the plans for the part were submitted.

Answer:

Auto production stopped on Feb. 9, 1942, as factories switched over to making munitions for World War II. The industry retooled plants that could be adapted.

Answer:

9, 1942, as factories switched over to making munitions for World War II. The industry retooled plants that could be adapted. Car manufacturing equipment was replaced with what was needed to make planes and tanks, and floors were reinforced to carry the load of heavier machinery, according to Life magazine

Explanation:

Answer:

The measuring tape is used to measure objects. It makes objects with two faces easier to measure, as it would be more difficult to use a ruler to measure two faces. You measure to increase accuracy. If you're trying to build something out of 12 inches of wood, you can't just look at the wood and assume it is 12 inches long. In engineering, it's necessary to measure during every project.

Explanation: