when assembling a steel-lattice tower, what two references are needed to determine the location of each individual piece of steel?
Answers
To locate each individual piece of steel, we need to know the locations of the two references:
1. Detailed engineering drawings that specify the exact location, size, and shape of each piece of steel.
2. Structural calculations that define the force and stress requirements of each piece of steel.
What is steel?
Steel is a strong and durable metal alloy composed of iron and carbon. It is one of the most widely used metals in the world, with applications spanning from construction and architecture to industrial machinery and vehicles. Steel is also one of the most recycled materials in the world and can be reused in various ways. Steel is often used in construction due to its high strength-to-weight ratio, its ability to withstand strong forces and its resistance to corrosion. It can be formed into a variety of shapes and sizes, allowing for its use in everything from bridges and skyscrapers to cars and ships. Steel is also known for its malleability, allowing for it to be bent and molded into a variety of shapes and sizes. Steel is also ideal for use in heavy machinery and automobiles due to its strength and durability. Steel is also used to make a variety of everyday items such as cutlery, kitchen utensils, and tools. Steel is also widely used in the production of food cans, containers, and other packaging materials.
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Related Questions
Weight, density, electrical conductivity, and coefficient of thermal expansion are examples of _______ properties.
Answers
Answer:
"Physical" would be the right approach.
Explanation:
Those properties would be that can be established without even any alteration throughout the identification of that same object. Property (whenever color, compressive strength, vapor pressure) of substance which does not require a biochemical alteration including its representation.So the answer here is just the perfect one.
-0-1"
-0
-20
-15
-10
0
-5
Answers
75743366
Explanation:
Show that taking |E| = 4N, the expected number of matchings goes to infinity as N → [infinity]
Answers
To show that the expected number of matchings goes to infinity as N approaches infinity when |E| = 4N, we need to use the theory of graph matchings and probabilistic methods.
Firstly, we need to define what is meant by a matching in a graph. A matching is a set of edges that do not share any vertices. In other words, a matching is a subset of the edges such that no two edges have a common endpoint.
Now, let us consider a graph with |E| = 4N edges, where N is a positive integer. We want to find the expected number of matchings in this graph. We can do this by using a probabilistic method known as the Lovasz Local Lemma (LLL).
The LLL provides a sufficient condition for the existence of an object (in this case, a matching) that avoids certain bad events (in this case, having edges that share a common vertex). To apply the LLL, we need to define a set of bad events and their dependencies.
In this case, we can define a bad event Bi for each vertex i in the graph, where Bi is the event that at least two edges incident to i are chosen in a matching. The probability of this event is at most (4N choose 2) / (2^(2N)), since there are (4N choose 2) ways to choose two edges incident to i out of 4N edges, and there are 2^(2N) possible matchings.
Furthermore, we can define the dependency graph G, where there is an edge between two vertices i and j if there exists an edge in E incident to both i and j. It can be shown that the dependency graph G has a maximum degree of at most 2N - 1.
By applying the LLL, we can show that there exists a matching in the graph with probability at least 1 / e. This implies that the expected number of matchings is at least 1 / e times the total number of matchings, which is (4N choose 2N) times (2N choose N) / N!. As N approaches infinity, this expression grows exponentially, implying that the expected number of matchings goes to infinity as N approaches infinity.
Therefore, we have shown that taking |E| = 4N, the expected number of matchings goes to infinity as N approaches infinity.
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a) At its cutoff frequency, an RC high-pass filter has a gain of ________ dB. b) The magnitude of the gain of a low-pass RC filter is 1/sqrt[1 (____________)2]. c) At the cutoff frequency of either a high-pass or a low-pass RC filter, output power
Answers
a) At its cutoff frequency, an RC high-pass filter has a gain of -3 dB.
b) The magnitude of the gain of a low-pass RC filter is 1/sqrt(1 + (frequency/cutoff frequency)^2).
c) At the cutoff frequency of either a high-pass or a low-pass RC filter, the output power is half of the input power.
a) At the cutoff frequency of an RC high-pass filter, the gain is -3 dB. This means that the output power is reduced to approximately 50% of the input power. The cutoff frequency is the frequency at which the output signal starts to attenuate.
b) For a low-pass RC filter, the magnitude of the gain can be expressed as 1/sqrt(1 + (frequency/cutoff frequency)^2). The cutoff frequency is the frequency at which the gain is reduced by -3 dB or 70.7% of the maximum gain. As the frequency increases beyond the cutoff frequency, the gain decreases gradually.
c) At the cutoff frequency of either a high-pass or a low-pass RC filter, the output power is half of the input power. This is because the cutoff frequency represents the frequency at which the filter starts to attenuate the signal. At this frequency, the filter has reached its 3 dB attenuation point, resulting in a power reduction of 50% of the input power.
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What long shaft a tool works in a combination with a impact wrench air to install Lugnuts on wheels
Answers
push buttons combine the operation of a selector switch and push button in the same unit is called ?
Answers
The device you are referring to is typically called a "push button selector switch" or a "selector switch with push button".
This type of switch combines the functions of both a selector switch and a push button into a single unit. It allows the user to select a particular position or function by rotating the switch to the desired position, and then activate that function by pressing the button associated with that position.
Push button selector switches are commonly used in control panels and other industrial applications where it is necessary to select and activate different functions or operations with a single device.
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.y() =1/T + 1 [(∗−∗)/∗ x (mx/mx) d() + (∗−∗)/∗ x (mx/mx) u()] Assuming a unity negative feedback loop, derive the following transfer functions
a. y ()
b. y ()
c. ()
d. ()
Answers
Assuming a unity negative feedback loop, we derived the transfer functions for the closed-loop system using the given equation.
To derive the transfer functions, we need to start by understanding the given equation and the terms involved in it. The equation represents a closed-loop system with feedback, where y() is the output, T is the transfer function of the open-loop system, and d() and u() are the input signals.
Assuming a unity negative feedback loop, the feedback signal is subtracted from the input signal, which means that the output is negatively related to the input. This is represented by the negative sign in front of the feedback term in the equation.
Now, to derive the transfer functions, we need to simplify the equation and express y() in terms of the input signals. After some algebraic manipulation, we get:
a. y() = (T*(d() - u()) + u()) / T
b. y() = T / (1 + T)
c. T() = T / (1 + T*(mx/mx))
d. T() = T*(mx/mx) / (1 + T*(mx/mx))
In these transfer functions, T represents the open-loop transfer function, and mx/mx is the ratio of the feedback path to the input path. The transfer functions help us understand how the input signals are transformed into the output signal in the closed-loop system.
In summary, assuming a unity negative feedback loop, we derived the transfer functions for the closed-loop system using the given equation. These transfer functions help us understand the relationship between the input and output signals and the role of the feedback loop in shaping the system's behavior.
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Bob would like to run his house off the grid, therefore he needs to find out how many solar panels and batteries he needs to buy.
The power output of a 250 W solar panel is p=250−10(t−5)2 watts for the average 10 hour day. He plans on using 12 V, 120 A⋅h batteries and would like to able to store 3 days worth of energy. Bob's house uses 1100 kW⋅h per month (30 days).
Answers
Answer:
stink
Explanation:
when welding which steps should be taken to protect the welder and/or others in the area
Answers
Answer:
eye protection safety gloves and rubber shoes and a safe ground
Explanation:
How would you describe good communication? Why and when do we need it?
Answers
considering that digital pirates are always one step ahead of the movie and music industries, how should private companies attempt to protect their intellectual property?
Answers
Registration with the government and enforcement of ownership rights are the greatest ways to safeguard intellectual property.
How is intellectual property safeguarded by businesses?One of the most popular forms of IP protection is a patent, followed by trademark and copyright. They provide you the only right to use your creations, especially for purposes of generating revenue.
What does the film business mean by intellectual property rights?With these rights, the creator of the original work gives the producer permission to make the film for a set amount of time. In the event that this course of action is chosen and the movie is produced, the producer pays the copyright holder the officially sanctioned sum for the right to use the work in the movie.
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The battery of an aircraft and even your car has the negative
as the ground. The question is why was the negative not the
positive chosen to be the ground?
Answers
what could happen if the engine was uncowled during the starting and operating procedures
Answers
If an engine fails during rollout or just before takeoff, immediately shut both throttles and land the aircraft safely. Before reaching a safe single engine speed right away after takeoff, drop your nose to increase velocity.
What is the engine starting procedure?Closing the throttle, turning off the fuel pump, setting the mixture control to idle cutoff, and simply cranking the engine is the most reliable hot start method I've found.
What is the procedure for engine failure?If an engine fails during rollout or just before takeoff, immediately shut both throttles and land the aircraft safely. Before reaching a safe single engine speed right away after takeoff, drop your nose to increase velocity. If you are unable to climb, close both throttles and land straight ahead.
What happens if engine fails during take off?The typical practice for the majority of aircraft would be to abandon takeoff if an engine failed during takeoff. In small aircraft, the pilot should turn the throttles down to idle, activate the speed brakes (if provided), and apply the brakes as needed if the engine fails before VR (Rotation Speed).
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a spherical nickel powder is to be analysed for particle size using sedimentation .it is suspected that particle size is near 8 micrometer if the powder is dispersed in water at the top of the segment column 100 mm high what is the expected setting time
Answers
It is estimated that a spherical nickel powder, likely measuring 8 micrometers in size, will take roughly 15 minutes to settle in water at the top of a 100 mm sedimentation column.
How is principle of Stokes used here?The principle of Stokes law is utilized in this, which explains that the speed at which a round particle sinks in a thick fluid is linked to both the size of the particle's radius and the contrast in densities of the particle and the fluid, while being inversely related to the fluid's viscosity.
The nickel powder has a density of \(8. 90 g/cm^3\) and particle radius of 8 micrometers, whereas water's density and viscosity are 1. 00 g/cm^3 and 0. 001 poise respectively in this scenario.
By inserting these numerical values into the Stokes equation, we can determine that the nickel powder has a settling rate of roughly 0. 0002 centimeters per second.
One can estimate the setting time by taking the column's height and dividing it by the settling velocity, resulting in roughly 15 minutes.
Kindly consider that the specified duration is only a rough approximation, and the factual solidifying period is prone to fluctuations based on various factors, such as the density of the nickel powder, the warmth of the water, and the existence of other contaminants or particles in the water.
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Calculate the generated EMF of a D.C. motor with the following parameters: magnetic flux is 52 W, 6 armature conductors, 14 generator poles and 3 parallel paths and speed is 32rpm.
Answers
the generated EMF of the DC motor with the given parameters is approximately 55.47 volts.
To calculate the generated electromotive force (EMF) of a DC motor, you can use the formula:
EMF = (P × Z × N) / (A × 60)
Where:
EMF = Electromotive Force (in volts)
P = Magnetic Flux (in Webers)
Z = Number of Armature Conductors
N = Speed of the motor (in revolutions per minute)
A = Number of parallel paths
Using the given parameters:
Magnetic Flux (P) = 52 W
Number of Armature Conductors (Z) = 6
Number of Generator Poles = 14
Number of Parallel Paths (A) = 3
Speed of the motor (N) = 32 rpm
Substituting these values into the formula:
EMF = (52 × 6 × 32) / (3 × 60)
EMF = 166.4 / 3
EMF ≈ 55.47 volts
Therefore, the generated EMF of the DC motor with the given parameters is approximately 55.47 volts.
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DİGİTAL LOGİC DESİGN
Answers
Answer:
Uh- dude if you think I'm gonna download that, think twice...
technician a says that the presence of a thrust angle can cause poor directional stability on ice, snow, or a wet pavement. technician b says that it can also increase tire wear because the front wheels fight the rear ones for steering control. who is correct?
Answers
Both Technician A and Technician B are correct. Thrust angle is a misalignment between the front and rear wheels that can cause directional instability and increase tire wear.
When thrust angle is present, the vehicle will tend to pull in one direction instead of running straight. This is especially noticeable on icy, snowy, or wet pavement due to the lack of traction. The front wheels will fight against the rear wheels, leading to a decrease in tire life as the tread is worn down more quickly.
To reduce the effects of thrust angle, it is important to check and adjust the alignment of the front and rear wheels on a regular basis. This can be done by a qualified technician, and the process typically takes less than an hour. Additionally, checking the vehicle's suspension and steering components for any signs of wear or damage can help prevent misalignment from occurring in the first place.
In conclusion, Technician A and Technician B are both correct; thrust angle can cause poor directional stability on slippery surfaces, and it can increase tire wear due to the front and rear wheels fighting for steering control. To reduce the effects of thrust angle, it is important to regularly check and adjust wheel alignment, as well as inspect the suspension and steering components for any signs of wear or damage.
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Some wastewater has a BOD5 of 150 mg/L at 20° C. The reaction rate k at that temperature has been determined to be 0.20/day. Find BOD5 (in mg/L) at 15° C.
Answers
Answer:
The value of \(\mathbf{BOD_5 \ at \ 15^0 \ C \ is \simeq 130.14 \ mg/L}\)
Explanation:
From the given information:
To find the BOD5 (in mg/L) at 15° C; we need to know the ultimate carbonaceous BOD and the reaction rate coefficient at 15° C.
So, to start with the calculation of the ultimate carbonaceous BOD by using the formula:
\(BOD_t = L_o (1-e^{-k*t})\)
where;
\(BOD _t\) = Biochemical oxygen demand at t days
\(L_o\) = the ultimate carbonaceous
∴
\(150= L_o (1-e^{-0.20*5})\)
\(L_o =\dfrac{150}{ (1-e^{-0.20*5})}\)
\(L_o =\dfrac{150}{ (1-0.3679)}\)
\(L_o =237.30 \ mg/L\)
Thus, the ultimate carbonaceous BOD = 237.30 mg/L
For the reaction rate coefficient; we use the formula:
\(k_{\tau} = k_{20} \times \theta^{\tau - 20}\)
where;
\(k_{\tau}\) = rate of the reaction constant at various temperature (T) = 15
\(k_{20}\) = rate of the reaction constant at standard laboratory = 0.20
\(\theta\) = constant = 1.047
∴
\(k_{15} =0.20 \times \theta^{15 - 20}\)
\(k_{15} =0.20 \times 1.047^{-5}\)
\(k_{15} =0.20 \times0.7948\)
\(k_{15} = 0.1590 / day\)
Thus, at 15° C, the reaction constant (k) = 0.1590 / day
Finally, the BOD5 (in mg/L) at 15° C can be calculated by using the formula:
\(BOD_t = L_o (1 - e^{-k*t})\)
\(BOD_t = 237.30 \times (1 - e^{-0.1590*5})\)
\(BOD_t = 237.30 \times (1 -0.45158)\)
\(BOD_t = 237.30 \times (0.54842)\)
\(\mathbf{BOD_5 \simeq 130.14 \ mg/L}\)
Consider again the relations R and S from the previous question but this time assume they have 10 times as many pages. That is, assume B(R) = 1000 and B(S) = 800. Explain how a DBMS could efficiently join these two relations given that only 11 pages can fit in main memory at a time. Your explanation should be detailed: specify how many pages are allocated in memory and what they are used for; specify what exactly is written to disk and when. Compute the cost of the join operation. (a) Present a solution that uses a hash-based algorithm.
(b) Present a solution that uses a sort-merge-based algorithm
Answers
(a) Hash-Based Algorithm Solution: 800 + 1000*800 = 1800000.
(b) Sort-Merge-Based Algorithm Solution: 2*(1000 + 800) + 1000*800 = 3600000.
What is algorithm
An algorithm is a set of instructions or steps that are used to solve a problem or accomplish a task. Algorithms are used in computer programming to automate processes, and in mathematics and science to provide a logical way to solve a problem. Algorithms are also used in everyday life, such as when following a recipe or driving directions. An algorithm should be precise and unambiguous, so that it can be followed without ambiguity or confusion. Algorithms must also be efficient, so that they can be completed in a reasonable amount of time. Additionally, algorithms should be able to be tested and verified, to ensure they are providing the expected output.
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Diseña un mecanismo multiplicador con un engranaje motriz cuya relación de transmisión sea de 0.5 y que transmita el movimiento entre ejes distantes. Inserta una captura de pantalla indicando la relación entre los diámetros y la velocidad de giro del engranaje motriz.
Answers
What are the advantages of regenerative cycle over simple Rankine cycle?
Answers
The regenerative Rankine cycle has a number of advantages over the simple Rankine cycle, such as Higher thermal efficiency, Lower exhaust, and Smaller physical size, Shorter startup time.
Higher thermal efficiency as the steam is recycled back to the boiler, resulting in higher efficiency and better fuel economy. Lower exhaust steam pressure and temperature, making it more suitable for applications with lower temperature differences between the heat source and the sink. Shorter startup time as the turbine does not require as much steam to reach operating conditions. Smaller physical size, as the high pressure and temperature equipment, is not necessary.
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if a driver causes damage to an unattended vehicle, he/she should
Answers
If a driver causes damage to an unattended vehicle, it is essential for them to take responsibility for their actions.
Firstly, the driver should immediately stop and assess the damage they have caused. It is crucial to leave a note with their contact information, including their name, phone number, and insurance details, clearly explaining what happened. This allows the owner of the damaged vehicle to get in touch with them for further assistance.
In addition to leaving a note, the driver should also document the incident by taking photos of the damage caused. This serves as evidence and can be useful for insurance purposes. If there are any witnesses present, their contact information should be gathered as well.
After leaving the note and documenting the incident, the driver should report the incident to the local authorities or the police, depending on the jurisdiction. This demonstrates a responsible approach and ensures that all necessary steps are taken to resolve the situation.
Taking prompt action, providing accurate contact information, documenting the incident, and reporting it to the appropriate authorities are crucial in handling such situations with integrity and accountability.
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.Find Ib. Express your answer to three significant figures in either rectangular OR degree-polar form. (Use the r∠θ template or rcis(θ) for degree-polar entries.)
Find Z. Express your answer to three significant figures in either rectangular OR degree-polar form. (Use the r∠θ template or rcis(θ) for degree-polar entries.)
Answers
Without specific information or equations, the values of Ib and Z cannot be determined.
What is the value of Ib and Z in the given context?The given question asks to find the value of Ib and Z. However, without specific information or equations provided, it is not possible to determine the values or the context in which they are being calculated.
To find Ib, we would need additional information such as the equation or circuit involved. Similarly, to find Z, we would need information about the specific problem or system in which Z is relevant.
Without such details, it is not possible to provide an explanation or solve the problem.
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scope creep is one of the primary causes of project failure. T/F
Answers
True. Scope creep refers to the gradual expansion of a project's scope beyond its original boundaries or requirements.
It occurs when there are uncontrolled changes or additions to the project's objectives, deliverables, or requirements, often driven by stakeholder requests or evolving circumstances.
Scope creep is widely recognized as one of the primary causes of project failure. It can have several negative impacts:
1. Schedule delays: Additional scope means more work and can lead to schedule overruns, as the project team may not have accounted for the extra time required.
2. Budget overruns: Expanding the scope without appropriate adjustments to the budget can result in increased costs, potentially exceeding the allocated resources.
3. Quality compromise: When scope increases without proper planning, there may not be sufficient resources or time to maintain the desired quality standards.
4. Customer dissatisfaction: Scope creep can lead to unmet expectations, as the project may fail to deliver what was initially promised.
To mitigate the risk of scope creep, it is essential to have a well-defined project scope, change control processes, and effective communication and stakeholder management throughout the project lifecycle.
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Briefly explain thermal expansion using the potential energy–versus–interatomic spacing curve.
Answers
As the temperature of the material increases, the potential energy of the molecules increases. Thermal expansion occurs due to changes in temperature, and interatomic distances increase as potential energy increases.
What are the uses of Thermal Expansion?Thermal expansion is used in a variety of applications such as rail buckling, engine coolant, mercury thermometers, joint expansion, and others.
It is to be noted that an application of the concept of liquid expansion in everyday life concerns liquid thermometers. As the heat rises, the mercury or alcohol in the thermometer tube moves in only one direction. As the heat decreases, the liquid moves back smoothly.
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Draw the ipo chart for a program that reads a number from the user and display the square of that number ???Anyone please
Answers
Answer:
See attachment for chart
Explanation:
The IPO chart implements he following algorithm
The expressions in bracket are typical examples
Input
Input Number (5, 4.2 or -1.2) --- This will be passed to the Processing module
Processing
Assign variable to the input number (x)
Calculate the square (x = 5 * 5)
Display the result (25) ----> This will be passed to the output module
Output
Display 25
What's the difference between a scale and a scale drawing?
Answers
scale is used to make a scale drawing. every scale drawing has it's sclae written for proper interpreatation
What is a scale?
A Scale is the ratio of a sketched model and the actual measuremnts while a scale drawing is a sketched model that was carefully made such that every measurement in the sketch could be represented to the site or actual mearuement through the scale with very little or no error
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To make a scale drawing, scale is used. For correct interpretation, every scale drawing has its own scale inscribed on it.
What exactly is a scale?A scale drawing is a sketched model that has been meticulously prepared so that every measurement in the sketch may be conveyed to the site or actual measurement through the scale with very little or no mistake.
A weighing apparatus or equipment with two pans of equal weight hung from its ends —usually used in the plural, either pan or tray of a balance scale.
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You are standing at the edge of the roof of the engineering building, which is H meters high. You see Professor Murthy, who is h meters tall, jogging towards the building at a speed of v meters/second. You are holding an egg and want to release it so that it hits Prof Murthy squarely on top of his head. What formulas describes the distance from the building that Prof Murthy must be when you release the egg?
Answers
Answer:
s = v√[2(H - h)/g]
This formula describes the distance from the building that Prof Murthy must be when you release the egg
Explanation:
First, we need to find the time required by the egg to reach the head of Professor. For that purpose, we use 1st equation of motion in vertical form:
Vf = Vi + gt
where,
Vf = Velocity of egg at the time of hitting head of the Professor
Vi = initial velocity of egg = 0 m/s (Since, egg is initially at rest)
g = acceleration due to gravity
t = time taken by egg to come down
Therefore,
Vf = 0 + gt
t = Vf/g ----- equation (1)
Now, we use 3rd euation of motion for Vf:
2gs = Vf² - Vi²
where,
s = height dropped = H - h
Therefore,
2g(H - h) = Vf²
Vf = √[2g(H - h)]
Therefore, equation (1) becomes:
t = √[2g(H - h)]/g
t = √[2(H - h)/g]
Now, consider the horizontal motion of professor. So, the minimum distance of professor from building can be found out by finding the distance covered by the professor in time t. Since, the professor is running at constant speed of v m/s. Therefore:
s = vt
s = v√[2(H - h)/g]
This formula describes the distance from the building that Prof Murthy must be when you release the egg
Why are most products the result of an innovation instead of an invention?
Answers
Answer:
they were updated rather than being created
Answer:
Invention is about creating something new, while innovation introduces the concept of “use” of an idea or method.
During gait the body is gaining speed:____.
a. during terminal stance
b. during mid stance
c. during initial swings
d. at mid stance event
Answers
During gait the body of a living organism is gaining speed: a. during terminal stance.
What is physical fitness?Physical fitness can be defined as a measure of both the physical and mental soundness (wellness) or ability of an individual to engage in physical exercises, sports, work and other day-to-day activities.
For instance, one of the ways in which an individual can model good physical fitness to other individuals in their neighborhood is by:
Riding their bikes to school or work.Walking with a slow, stiff gait.What is gait?Gait can be defined as the way and manner in which an animal or individual walks or runs, thereby affecting and altering the shape of the body.
In this context, we can infer and logically deduce that during gait the body of a living organism is gaining speed, especially during terminal stance.
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