the the rectangular components of acceleration for a particle are ax = 3t and ay= (30-10t) where a is in m/ s^2 . if the particles start from rest at the origin. find the radius of curvature of the path at the instant 2 second​

Answer:

a) L = 50.01 nm

b) 99.98%

Explanation:

Determine the necessary precipitate spacing  and estimate the required percentage of precipitate phase

Given that the shear strength = G/100 by precipitation hardening

G = shear modulus

Radius of particles = 40 nm

attached below is the detailed solution

a) precipitate spacing ( L ) = √( 2π / f )  * R₁

                                       = √ ( 2π / 0.00719956 ) * 1.693 nm

hence L = 50.01 nm

b) Determine The percentage of precipitate phase that is required

( precipitation strength  /  peak strength ) * 100

= ( 18.4583 / 18.4604 ) * 100

= 99.98%

Answer:

Plain carbon steel has no or trace external elements while alloy steel has high amount of other elements.

Explanation:

Plain carbon steel has no or trace amount of other elements while alloy steel has high amount of other elements in their composition.

The presence of other elements in alloy steel improvise several physical properties of the steel while plain carbon steel has the basic properties.

The energy stored in the two rubber bands of the catapult just before release can be calculated as follows: Area of Rubber Bands = (4 mm) x (300 mm) = 1200 mm2, Modulus of Rubber = 10-3 GPa = 10,000 N/mm2 Strain = (3 x Original Length) / (Original Length) =  Energy = (1200 mm2) x (10,000 N/mm2) x (3) = 36,000,000 Nmm or 36,000 J

Energy is the capacity of a physical system to do work or produce heat. It is the fundamental source of virtually all movement and change on Earth. In physics, energy is a property of objects which can be transferred to other objects or converted into different forms. Examples of energy include light, electricity, heat, sound, and kinetic energy. Energy can be generated from a variety of sources including fossil fuels, nuclear power, and renewable sources such as wind, solar, and hydropower. Energy plays a crucial role in the economic and social development of societies, enabling the production of goods and services and the delivery of basic services such as heating, cooling, and lighting. The efficient and responsible use of energy is essential to sustainable development.

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The common workplace for both science and math pathways, with engineering and technology in laboratories and ships. Thus, option A is correct.

A workplace is given as the location or the place at which the employee are performing their jobs and tasks.

The science or technology-mediated employees are related to research where they perform the tests in laboratories, as well as the ships are the location for the engineering and the math candidates for the analysis of the studies and to perform the job.

Hence, the location in the workplace common for both engineering and technology candidates has been the laboratories and the ships. Thus, option A is correct.

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The first equation is linear, the second equation is nonlinear, the third equation is nonlinear, the fourth equation is nonlinear, the fifth equation is nonlinear, and the sixth equation is nonlinear.

What is equation?
An equation is an expression that contains an equal sign and relates two or more mathematical quantities. It typically consists of constants, variables, and symbols, and can be written in different forms such as standard form, slope-intercept form, and factored form. Equations are used to describe relationships between variables, and they can be used to solve a wide range of problems, from basic arithmetic to advanced calculus and physics. Equations are also used to model real-world phenomena, such as electricity, kinematics, and quantum mechanics. By studying equations and their solutions, we can gain a deeper understanding of the physical world around us.

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According to the question of disconnecting an air gun before inspection, tech B is correct.

What is gun?
Gun is a type of weapon that is typically used to fire bullets at a target. It is typically composed of a barrel, a chamber, a firing mechanism, and ammunition. Guns have been used for centuries as a tool for hunting, self-defense, and warfare. Guns are typically categorized by the type of ammunition they use, such as pistol, shotgun, or rifle. Guns can be used to shoot at a variety of targets, such as animals, clay pigeons, and even human targets. Guns are also used in competitive shooting sports. Although guns can be used for a variety of purposes, they have the

Although it is not possible to completely remove all hazards from a shop, it is important to take precautions such as disconnecting an air gun before inspecting it to help reduce the risk of injury.

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The mass of sugar cane being fed to the process with this flowrate is 0.0014 kg/s.

Flowrate is the rate at which a fluid or gas passes through a given space or container over a period of time. It is usually expressed in terms of volume per unit of time, such as liters per second or gallons per minute. Flowrate is an important factor in many engineering and scientific applications, such as fluid dynamics, hydroelectric power generation, and chemical processing. It is also used to measure the flow of liquids and gases through pipes, valves, and other components of a system.

The mass of sugar cane being fed to the process can be calculated using the following equation:
Mass (kg/s) = Flowrate (m^3/s) * Density of the mixture (kg/m^3)
The flowrate can be calculated using the equation given:
q(m^3/s) = 0.0307 m^3/hr atm^1/2 √ Pmanometer
Therefore, the flowrate is:
q(m^3/s) = 0.0307 m^3/hr * (atm^1/2 * (6.3 in/12 in/ft)^1/2)
q(m^3/s) = 0.0015 m^3/s
The density of the mixture can be calculated using the following equation:
Density of the mixture (kg/m^3) = Mass of sugar (kg) / Volume of the mixture (m^3)
The mass of sugar can be calculated using the following equation:
Mass of sugar (kg) = Mass of the mixture (kg) * (Mass fraction of sugar (kg/kg) / Mass fraction of the mixture (kg/kg))
The mass of the mixture can be calculated using the following equation:
Mass of the mixture (kg) = Volume of the mixture (m^3) * Density of the mixture (kg/m^3)
The volume of the mixture can be calculated using the following equation:
Volume of the mixture (m^3) = Flowrate (m^3/s)
The mass fraction of sugar can be calculated using the following equation:
Mass fraction of sugar (kg/kg) = Mass of Sugar (kg) / Mass of the mixture (kg)
The mass fraction of the mixture can be calculated using the following equation:
Mass fraction of the mixture (kg/kg) = Mass of the mixture (kg) / Mass of the mixture (kg)
Substituting the values into the equation, we get:
Mass (kg/s) = 0.0015 m^3/s * (0.91 kg/m^3)
Mass (kg/s) = 0.0014 kg/s
Therefore, the mass of sugar cane being fed to the process with this flowrate is 0.0014 kg/s.

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After considering ϕϕ simply as a function, its domain is ⇒  [-4 , ∞).

When one or more functions and their derivatives are included in a mathematical equation, it is referred to as a differential equation. A function's derivatives at a given point determine how quickly the function will change.

Physicists, engineers, and biologists use it most frequently. Differential equations are primarily used to analyse solutions that satisfy the equations as well as the characteristics of the solutions. The differential equation can be solved in a variety of ways, but one of the simplest is by using explicit formulas.

y = x + 6√(x + 4)

⇒  y' = 1 + 6[ 1/(2√(x + 4))]      since d/dx xn = nxn-1 , d/dx √x = 1/(2√x)

⇒  y' = 1 + 3/√(x + 4)

(y -x)y' = (6√(x + 4))(1 + 3/√(x + 4)) = 6√(x + 4) + 18

y-x+18 = 6√(x + 4) + 18

ϕ(x) = x + 6√(x + 4)

Domain ⇒  x + 4 >= 0 ⇒  x >= -4

⇒ Domain ⇒  [-4 , ∞)

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Answer:

The main difference between theatre and cinema is that theatre involves live performances like plays, opera, ballet, and musical theatre, while cinema involves films.

Theatre is a building or outdoor area that houses dramatic presentations, and stage entertainments. In British English, cinema refers to a building that contains an auditorium for viewing films – this is equivalent for movie theatre in American English.

Explanation:

Similarities between theatre and movies

Both movies and theatre focus on social evils and problems and represent them to society through play and cinema. In both, the purpose of the cases is to bring positive changes in society. ...

Both theater plays and movies are forms of entertainment that allow an audience to enter different worlds. ...

Both theater plays and movies are forms of entertainment

Answer:

Theatre typically involves live performances, while cinema usually contains a moving picture that is prerecorded or premade and being projected.

Examples of theatre include:

Examples of cinema include:

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A geotechnical investigation is primarily concerned with testing the physical properties of the soil, to provide recommendations for foundation requirements, excavation stability, drainage and buried concrete design.

Answer:

Geotechnical investigation is: A surface exploration and subsurface exploration of a site.

Explanation:

What does Geotechnical investigation mean?

It's a primarily concerned with testing the physical properties of the soil, to provide recommendations for foundation requirements, excavation stability, drainage and buried concrete design.

Why Geotechnical is important?

It allow's Engineers to evaluate the stability and strength of the ground, including slopes and soil deposits, assess risks such as soil aggressivity to buried concrete, and help to determine what type of foundations and earthworks would be required within a (project) for example.

The system automatically can communicate with each other and adjust system operation to match the heat load and operating conditions.

What is system operation?
System operation is the process of managing, controlling, and monitoring the operations of a computer system or network. It encompasses the planning and implementation of system operations, including the coordination of hardware, software, and communication components. System operation includes activities such as system configuration, system monitoring, performance tuning, system backup, system recovery, and system maintenance. System operation ensures that the system or network is secure, reliable, and available to users. It also involves troubleshooting and responding to incidents, analyzing system performance, and identifying areas for improvement. System operation is critical to the success of any organization, as it ensures the availability, reliability, and security of the system or network.

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A stall happens when the smooth airflow over the unmanned airplane`s wing is disrupted, and the lift degenerates rapidly. This is caused when the wing "exceeds its critical angle of attack."

The angle of attack refers to the angle at which the airplane's wing meets the air that is flowing over it. When an airplane actually is taking off, it is lifting the nose up into the air. And, if that nose continues to rise ultimately it reaches a point where the air is not able to smoothly flow over the wing, causing the airplane to drop. And, this is the point when the airplane exceeds its critical angle of attack.

Exceeding the critical angle of attack is known to be a stall. This has no concern with the engine stalling, it just concerns with the wings not producing enough lift to keep the airplane in the air.

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According to the question of vehicle which is only going to run for a few minutes, tech A is correct.

What is vehicle?
Vehicles are any mode of transportation that can be used on land, sea, or air. They are an important part of modern transportation and include cars, trucks, buses, motorcycles, boats, trains, and airplanes. They provide an efficient way to travel, while also allowing people to transport goods and materials. Vehicles are powered by a variety of sources, including gas and electricity. Advanced technology has allowed for the development of self-driving vehicles, which are becoming increasingly popular.

Caution and danger signs indicate a potentially hazardous situation, and an exhaust extraction hose should be used whenever a vehicle is running, regardless of how long it is running for.

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The velocity field isn't conservative, though.

What exactly is Velocity ?

Velocity is the direction at which an item is moving and serves as a measure of the rate at which its location is changing as seen from a particular point of view and as measured by a specific unit of time (for example, 60 km/h northbound). In kinematics, the area of classical physics that deals with the motion of bodies, speed is a basic idea.

A physical scalar quantity called velocity must have both a magnitude and a direction in order to be characterized. Speed is the scalar absolute value (intensity) of velocity; it is a coherent basic determinant whose quantity is measured in metres per second (m/s or m/s1) in the SI (measurement units).

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Answer: None of the above

Explanation:

Business process modeling refers to the graphical representation of the business processes of a company, which is vital in the identification of potential improvements.

Business pticess modelling can be done through graphing methods, like data-flow diagram, flowchart etc. It is vital as business managers can effectively and quickly communicate their ideas.

It also enhances the customization of business processes, enhances the competitive advantage and enhances the process communication as well.

Therefore, the answer to the question will be "None of the above".

Option A. A diesel electrician works on the electrical systems of diesel engines, while a diesel mechanic works on the mechanical systems of diesel engines.

A diesel electrician focuses on the wiring, electronics, and computer systems of diesel engines, while a diesel mechanic is responsible for the engine parts, fuel systems, and other components.

Both positions require a specific set of skills, and both are necessary to ensure the efficient functioning of diesel engines.

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The curves look like a sine wave, with the number of rabbits and foxes both oscillating around a steady-state equilibrium. The presence of the constants for growth and death of both rabbits and foxes.

What is curves?
Curves is an international fitness franchise targeting women. It offers a 30-minute workout that combines strength training, cardio, and stretching. The circuit-style program is designed to help members reach their fitness goals while providing a supportive, non-threatening environment. The program also includes nutrition counseling, wellness education, and support from certified coaches.

This is because the predator-prey relationships in this system are cyclical, with the fox population increasing as the rabbit population increases, and vice versa.

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Tech B is correct, as the firefighters should not risk their lives unless they can do so safely.

What is a Firefighter?

A firefighter, also known as a fireman, is a highly trained individual who works to fight and extinguish fires. They also work to prevent fires, serve as emergency medical technicians (EMT), and investigate fire causes.

Because a firefighter is almost always the first official "on the scene" of a fire, car accident, or other emergency, they are sometimes referred to as "first responders." Some firefighters work as professionals, while others volunteer in their communities.

There are four primary responsibilities and duties: putting out fires, rescuing and caring for the sick and injured, working to prevent future fires, and investigating the causes of fires, particularly if arson is suspected.

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The pavement will last between 41 and 50 years with a reliability of 90%.

A road surface, also known as pavement, is a durable surface material that is laid down on an area intended to support vehicular or pedestrian traffic, such as a road or walkway.

First, calculate the number of equivalent single axle loads (ESALS):

ESALS = 600*30 + 1400*20 = 55600.

Next, calculate the design life (L) using the formula: L =

(ESALS/18000)^(1/TSI) * (Ec/PSI)^(-1/2*SD).

Plugging in the values,

L = (55600/18000)^(1/2.5) * (5.5 x 10^6/4.5)^(-1/0.7) = 41.8.

Lastly, calculate the reliability (R) using the formula:

R = (1-LT^(-1/2))*100.

Calculating for a pavement life of 41 years and 50 years gives a reliability of 90% for both values.
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The two major grains found on all lumber are the longitudinal grain and the radial grain.

The longitudinal grain runs parallel to the length of the board, while the radial grain runs perpendicular to the length of the board.

The longitudinal grain, also known as the "edge grain," runs parallel to the length of the board.

This grain is created by the growth rings of the tree, which are formed by the tree's annual growth.

When a tree is cut down and milled into lumber, the edge grain is exposed on the edges of the board. This grain is typically considered to be the strongest and most stable of the two grains.

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The resulting stress at the top and bottom surfaces is 837.5 N/m^2 and -837.5 N/m^2, respectively. The top surface is in compression and the bottom surface is in tension.

What is stress?
Stress in engineering is the amount of force per unit area placed on a material or structure. It can be physical, or it can be psychological. Stress can be positive or negative. Positive stress can cause a material to become stronger, while negative stress can cause it to become weaker or even fail. Stress can also refer to the amount of strain a material must endure before it yields or breaks. Stress is measured in terms of pounds per square inch (psi) or newtons per square meter (N/m2). Stress analysis is important in engineering as it helps to identify potential failure points in a design, or to determine how much a material can handle before it breaks. Stress analysis is used to ensure the safety and integrity of products, structures, and machines.

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Princeton has a long tradition of service and civic engagement, and I am proud to be part of this legacy.

I have always been passionate about giving back to my community and helping those in need. I have participated in volunteer programs to help feed the homeless, tutor disadvantaged children, and provide other forms of community service.

I am also committed to making a positive impact on the environment by taking part in various initiatives to reduce my carbon footprint. I am currently a member of the Princeton Environmental Action Group and will be taking part in their upcoming campaigns to reduce waste and promote sustainable practices on campus.

I am also part of the Princeton Student Climate Initiative, which is dedicated to raising awareness about climate change and advocating for policy changes that will help protect the environment. I look forward to continuing my commitment to service and civic engagement during my time at Princeton, and I know that by working together, we can make a positive difference in our community.

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According to the question of vehicle, tech B is correct.

What is vehicle?
Vehicle is a general term used to describe any mode of transportation that carries people or goods from one place to another. Examples of vehicles include cars, buses, boats, planes, trains, bicycles, and motorcycles. Vehicle is a noun that can refer to any type of transportation, either for people or for cargo. Vehicles are powered by various sources, such as fuel, electricity, pedals, or sails.  

An SDS is used to document any hazardous materials that may have been released during an accident, as well as to provide instructions for cleaning up and disposing of the hazardous material. It does not provide instructions on how to repair a vehicle.

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The angle grinder disc is turned at speeds that range from 5000 to 12,000 rpm.

An angle grinder is a tool for rough grinding and cutting. An angle grinder tool with the correct disc can replace a variety of instruments, making even the most time-consuming and labor-intensive tasks faster and easier.

The term rpm refers to the number of times per minute that something will go around in a circle. The term rpm stands for revolutions per minute.' Both engines were set at 2,500 rpm.

Therefore, the angle grinder disc is spun at speeds ranging from 5000 to 12,000 revolutions per minute.

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The elevation of lowest point of the curve is 445.077 ft.

Height above or below the mean sea level is referred to as elevation. A map's elevation can be depicted either by labelling the precise elevations of specific points or by using contour lines, which link points of the same elevation. Topographic maps are depicted as having elevations.

Calculate rate of change of the curve as below:

[tex]$$\begin{aligned}r & =\frac{g_2-g_1}{L} \\& =\frac{2.5-(-4.0)}{\left(\frac{400}{100}\right)} \\& =1.625 \%\end{aligned}$$[/tex]

Calculate distance from PC to the lowest point as below:

[tex]$$\begin{aligned}X & =\frac{-g_1}{r} \\& =\frac{-(-4.0 \%)}{1.625 \%} \\& =2.462 \mathrm{ft}\end{aligned}$$[/tex]

Calculate the elevation of the lowest point of the curve as below:

[tex]$$\begin{aligned}Y & =Y_{P C}+g_1 X+\frac{r}{2} X^2 \\& =450\mathrm{ft}+(-4.0 \times 2.462)+\frac{1.625}{2}(2.462)^2 \\& =450\mathrm{ft}-9.848 \mathrm{ft}+4.925 \mathrm{ft} \\& =\mathbf{445.077} \mathrm{ft}\end{aligned}$$[/tex]

Thus, the elevation of lowest point of the curve is 445.077ft.

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Answer: The main difference between contact relays and communication relays is the type of signals that they are designed to handle, with contact relays being used to control the flow of electricity in a circuit and communication relays being used to transmit data or signals from one location to another.

Explanation: The main difference between contact relays and communication relays is the type of signals that they are designed to handle. Contact relays are used to control the flow of electricity in a circuit by opening and closing electrical contacts, while communication relays are used to transmit data or signals from one location to another.Contact relays are typically used in applications where it is necessary to switch electrical circuits on and off, such as in control panels and automated systems. They are usually designed to handle relatively low-frequency electrical signals and are typically not suitable for transmitting data or high-frequency signals.On the other hand, communication relays are used to transmit data or signals from one location to another, and are typically designed to handle a wide range of frequencies and data types. They can be used to transmit voice, data, and video signals over a variety of mediums, including wire, fiber optic cables, and wireless transmission.

The time function corresponding to each of the following Laplace transforms using partial fraction expansions will be:

(a) f(t) = e^(-t) + te^(-t)

(b) f(t) = 5e^(-t) + 5te^(-t) - 10e^(-5t)

(c) f(t) = 3e^(-t) + (2t+1)e^(-t) - 2e^(-2t) - 5te^(-2t)

What is fraction?
A fraction is a type of mathematical expression that represents a part of a whole. It is written as a ratio of two numbers, with a line separating them. For example, the fraction 1/2 represents one part of a whole that has been divided into two equal parts. Fractions are used to express amounts that are less than one, such as a half, a quarter, or a third. They can also be used to express amounts greater than one, such as two thirds, three quarters, or four fifths. Fractions are used in many different areas of mathematics, such as addition, subtraction, multiplication and division.

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The LER of the same wing is 0.21 using the chord values.

In agriculture, the term "land equivalent ratio" refers to the proportion of land area needed for monoculture (single-crop farming) to yield the same amount of yield as intercropping (polyculture).

The FAO defines the land equivalent ratio (LER) as the ratio of the area used for sole cropping to the area used for intercropping in order to produce an equal amount of yield at the same management level. The result is the sole-crop yields multiplied by the sum of the intercropped yield fractions.

We must use a chord, so I'm assuming that it is 0.045 m in length.

The formula provides the Area.

Area = span × chord

Area = 0.245 × 0.045

Area = 0.011 m²

We then divide the area obtained by the glider weight we obtain the final result.

LER = area / weight

LER = 0.011 / 0.0523

LER = 0.21

As a result, the Lee of the same wing is 0.21 using the chord values.

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In the given question, Moist unit weight = 115lbs/ft³, Dry unit weight = 103.6 lbs/ft³, Void ratio = 0.626,  Porosity = 0.385 and Degree of saturation =  47.4%

Porosity, also known as void fraction, is a measure of the void (i.e., "empty") spaces in a material. It ranges from 0 to 1, or as a percentage, between 0% and 100%, and represents the volume of voids over the total volume. Some tests, strictly speaking, measure the "accessible void," or the total volume of void space that is reachable from the surface (cf. closed-cell foam).

Porosity in a substance or part can be tested in a variety of ways, including through industrial CT scanning. The word "porosity" is used in a variety of disciplines, including pharmaceutics, ceramics, metallurgy, materials, manufacturing, petrophysics, hydrology, earth sciences, soil mechanics, and engineering.

a. Moist unit weight

W/V = 23/0.2 = 115lbs/ft³.

b.  Dry unit weight

89℅ of 115 = 103.6 lbs/ft³

c. Void ratio = volume of void/ volume of total sample

                     = (2.7 × 62.4)/103.6

                     = 0.626

d. Porosity = 0.626/1+0.626

                  = 0.385

e. Degree of saturation =  47.4%

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