Determine the minimum of the appropriate yellow interval (Ymin, in s) for a signal phase under the following conditions.
approach speed limit: 45 mi/h
approach grade: 3.8% downgrade
assumed perception-reaction time: 1.0 sec
assumed deceleration rate: 11.2 ft/sec2
assumed average vehicle length: 20 ft
width of intersection to be crossed: 56 ft
s
Answers
The minimum appropriate yellow interval (Ymin) is 5.15 seconds.
Step 1 -
To determine the minimum yellow interval (Ymin), we need to consider the distance traveled by the vehicle during perception-reaction time, the distance needed to stop the vehicle, and the distance required to clear the intersection.
First, we need to convert the approach speed limit to feet per second:
45 mi/h = 66 ft/s
Next, we need to determine the perception-reaction distance:
Perception-reaction distance = Approach speed x Perception-reaction time = 66 ft/s x 1.0 s = 66 ft
Step 2 -
Then, we need to determine the stopping distance:
Stopping distance = (Approach speed)^2 / (2 x Deceleration rate) =(66fts)22x11.2fts2 = 207.9 ft
Note that this assumes a constant deceleration rate from the initial approach speed to a complete stop.
Finally, we need to determine the intersection clearance distance:
Intersection clearance distance = Width of intersection + Half of vehicle length = 56 ft + 10 ft = 66 ft
Therefore, the total distance required is:
Total distance required = Perception-reaction distance + Stopping distance + Intersection clearance distance = 66 ft + 207.9 ft + 66 ft = 339.9 ft
Finally, we can use the total distance required and approach speed to determine the minimum yellow interval using the formula:
Ymin = Total distance required / Approach speed
Ymin = 339.9 ft / 66 ft/s = 5.15 seconds (rounded to two decimal places)
Therefore, the minimum appropriate yellow interval (Ymin) is 5.15 seconds.
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Related Questions
A pumping test has determined the aquifer transmissivity to be 2000 ft2/day and the storage coefficient to be 0.0002. Your client requires an average water supply of 500.000 gpd. You plan a 1-in diameter well. 200 days of continuous withdrawal from storage is targeted each year. If the entrance losses to the well total 2 feet at what depth would you set the pump
Answers
Answer:
rqbynqnyeuenqrqununrqruqrun
If you are designing a space heater to warm a room and are required by safety codes to keep its surface temperature below 350 K (170 F or 77 C), the only variable you have to work with is the surface area, and you want to minimize that to make it convenient and inexpensive. Neglecting convection entirely, and assuming all the heat is transferred as infrared light, suppose it is to radiate 1200 W. How much area would it have
Answers
Answer:
A = 1.41 m²
Explanation:
The ara can be found out by using Stefan Boltzman Law:
\(P = \sigma AT^4\)
where,
A = Area = ?
P = Radiation Power = 1200 W
σ = Stefan Boltzman Constant = 5.6703 x 10⁻⁸ W/m².k⁴
T = surface temperature = 350 k
Therefore:
\(1200\ W = (5.6703\ x\ 10^{-8}W/m^2.k^4)(A)(350\ k)^4\\\\A = \frac{1200\ W}{850.9\ W/m^2}\)
A = 1.41 m²
What is the maximum value of the bending stress at the critical cross-section?
Answers
Answer:
The bending stress increases linearly away from the neutral axis until the maximum values at the extreme fibers at the top and bottom of the beam. The maximum bending stress is given by: where c is the centroidal distance of the cross section (the distance from the centroid to the extreme fiber).
Explanation:
Hi please mark me as the brainliest and please follow me I you want. Have a great day.
Hey guys can anyone list chemical engineering advancement that has been discovered within the past 20 years
Answers
Nanopesticides. The world population keeps growing. ...
Enantio selective organocatalysis. ...
Solid-state batteries. ...
Flow Chemistry. ...
Porous material for Water Harvesting. ...
Directed evolution of selective enzymes. ...
From plastics to monomers. ...
La viscosidad de un liquido es igual a 0.04 N s/m^2 . Este valor en Dinas s/cm^2 se encuentra en el literal
Answers
Answer:
0.4 Dinas*s/cm^2
Explanation:
Tenemos una viscosidad:
V = 0.04 N*s/m^2
Y queremos reescribir esto en Dinas*s/cm^2
Primero transformemos la unidad del denominador, es decir, tenemos que pasar de 1/m^2 a 1/cm^2
Para ello, usamos que:
1m = 100cm
entonces:
(1m/100cm) = 1
Si elevamos ambos lados al cuadrado, obtenemos:
(1m/100cm)^2 = 1
Ahora podemos multiplicar el valor de la viscosidad por esto (que es igual a 1)
V = 0.04 N*s/m^2*((1m/100cm)^2 = 0.00004 N*s/cm^2
Ahora debemos convertir de Newtons a Dinas
Sabemos que:
1 N = 100,000 dinas
1 = (100,000 dinas/1N)
Entonces, de vuelta podemos multiplicar nuestra viscosidad por (100,000 dinas/1N), que es igual a 1 (asi que no cambia el valor, solo sirve para cambiar las unidades)
0.00004 N*s/cm^2 = (100,000 dinas/1N)*(0.00004 N*s/cm^2)
= (100,000 dinas)*(0.00004 s/cm^2)
= 0.4 Dinas*s/cm^2
If a circuit produces a phase shift of 45 degrees between the voltage and current curves and the apparent power is 100 VA, what is the TRUE power in the circuit?
50 W
70.7 VA
70.7 W
100 A
Answers
The true power is obtained as 70.7 VA.
What is the true power?We define the power a the rate of doing work, we know that the power in a circuit is the product of the current and the voltage. In this case, we want to find the true power thus we have to involve the use of the phase shift in degrees.
Thus;
True power = PcosΦ
P = 100 VA
Φ = 45 degrees
True power = 100 VA * cos 45 degrees
True power = 70.7 VA
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Tho itcms below appear on a physicias's intake form. Determine the level of measurement of tho date. (a) Temperature (b) Allergios (c) Weight (d) Paln level (scale of 0 to 10 ) 26. The items below appear on sa employment application. Determine the level of measurement of the data. (a) Highest grade level completed (b) Gender (c) Year of college graduation (d) Nuaber of years at last job Classifying Data by Type and Level In Exereises 27-32, determine whether the data are qualiatave of quannitative, and detemine the level of measurement of the daia set. 27. Football The top five teams in the final college football poll relcased in January 2013 are listed. (Source: Aswociased Press) 1. Alabama 2. Oregon 3. Ohio State 4. Notre Dame 5. GeorgiafTexas A \&M 28. Polities The three political parties in the 112th Congress are listed. Republican Democrat Independent 29. Top Salespeople The regions representing the top salespeople in a corporation for the past sixyears are listed. Southeast Northwest Northeast Southeast Southwest Southwest 30. Diving. The scores for the gold medal winning diver in the men's 10 -meter platform event from the 2012 Summer Olympies are listed. (Soerrce: Sntemationit Olmmic Committce) 97.20
90.75
86.40
91.80
99.90
102.60
31. Music Albums The top five music albums for 2012 are listed. (Soarce: Birboard) 1. Adele 21" 2. Michael Buble "Christmas" 3. Drake "Take Care" 4. Taylor Swift "Red" 5. One Direction "Up All Night" 32. Ticket Prices The average ticket prices for 10 Broadway shows in 2012 are listed. (Source. The Broalnay Leagut) EXTENDING CONCEPTS 33. Writing What is an inherent zero? Describe three examples of data sets that have inherent zeros and three that do not. 34. Describe two examples of data sets for cach of the four levels of measurement. Justify your answer.
Answers
The level of measurement for the given data is as follows:
(a) Temperature - Quantitative, interval
(b) Allergies - Qualitative, nominal
(c) Weight - Quantitative, ratio
(d) Pain level - Quantitative, ordinal
Temperature is a quantitative variable that can be measured on an interval scale because the differences between temperature values are meaningful (e.g., the difference between 20 and 30 degrees Celsius is the same as the difference between 30 and 40 degrees Celsius).
Allergies, on the other hand, are a qualitative variable that can be categorized into different groups or levels without any inherent numerical value. It is measured on a nominal scale, which means there is no numerical order or ranking associated with the categories.
Weight is a quantitative variable that can be measured on a ratio scale. It has a meaningful zero point (absence of weight) and the ratios between weight values are meaningful (e.g., 100 pounds is twice as heavy as 50 pounds).
Pain level is also a quantitative variable, but it is measured on an ordinal scale. The scale of 0 to 10 represents different levels of pain intensity, but the differences between the numbers may not be equal or meaningful. It only provides a ranking or order of pain levels.
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Find the resultant of the force system on the body OABC as shown .find the points where the resultant will cut the X and Y axis?
Answers
Explanation:
the resultant force =
\( \sqrt{} {x}^{2} + {y}^{2} \)
A resultant force is the single force and corresponding torque that are produced when adding vectors to a system of forces and torques acting on a rigid body.
What are the resultant of the force system on the body?R = A + B. Instance 2 To create the resulting vector, two vectors facing the opposite direction are subtracted from one another. Here, the vector B is pointing in the opposite direction of the vector A, and the resulting vector is called R.
A force system is a group of forces that interact at specific locations (may also include couples). Therefore, the collection of forces shown on any free body diagram is a force system. A group of forces is simply referred to as a force system.
Therefore, When an item is under the influence of two or more forces, the combined force can be calculated by adding up the separate forces.
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Which of the following lists, among other things, the vehicle identification, the customer's concern or complaint, and costs for parts? A. Repair order B. Owner's manual C. Comeback report D. Service manual
Answers
Answer:
I think it is D.service manual
Explanation:
Because it is the vehicle identification
6. She folded the clean towel and put in the closet.
A Mass Noun
C. Count Noun
B. Collective Noun
D. Possessive Noun
Can you answer this!!!
Answers
Answer:
C. Count Noun
Explanation:
Find the inductive reactance per mile of a single-phase overhead transmission line operating at 60 Hz, given the conductors to be Patridge and the spacing between centers to be 20 ft
Answers
Answer:
The inductive reactance is 0.8281 Ω/mile
Explanation:
Given;
frequency, f = 60 Hz
space between the center, GMD = 20 ft
The inductive reactance per mile is calculated as;
\(X_L =X_a + X_d\\\\X_L = 2.022*10^{-3} *f *ln\frac{1}{GMR} + 2.022*10^{-3} *f *ln\ GMD\)
Where;
GMR is geometric mean radius (obtained from manufacturer's table)
GMD is geometric mean distance
For Partridge conductor, GMR = 0.0217 ft;
Xa = 2.022 x 10⁻³ x 60 x ln (1 / 0.0217)
Xa = 0.4647 Ω/mile
\(X_d\) = 2.022 x 10⁻³ x f x ln GMD
\(X_d\) = 2.022 x 10⁻³ x 60 x ln(20)
\(X_d\) = 0.3634 Ω/mile
Inductive reactance;
\(X_L = X_a + X_d\\\\X_L = 0.4647 \ ohms/mile \ + 0.3634 \ ohms/mile\\\\X_L = 0.8281 \ ohms/mile\)
Therefore, the inductive reactance is 0.8281 Ω/mile
For C programming language,
Create a structure called student that has fields for name, id and age. The field name is a char array, id is an integer and age is double type. In the main program create an array of size 5 and pass this array to a function to populate the array with user data. The main program must create a file and save this information to a file (one line for each student). Write a second program to read each line of the file created in part-1 and save it back to an array of structure student (same as the structure created in part-1). Then find the name of the oldest student.
Answers
Create student struct, populate array, save/read to file, find oldest.
How to create, save and read student data in C?Here's an example implementation of the requirements in C programming language:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define MAX_STUDENTS 5
#define MAX_NAME_LENGTH 50
// Define the structure for a student
struct student {
char name[MAX_NAME_LENGTH];
int id;
double age;
};
// Function to populate the array with user data
void populate_students(struct student students[]) {
for (int i = 0; i < MAX_STUDENTS; i++) {
printf("Enter name, id and age of student %d: ", i + 1);
scanf("%s %d %lf", students[i].name, &students[i].id, &students[i].age);
}
}
// Function to save student data to a file
void save_students_to_file(struct student students[], const char* filename) {
FILE* fp = fopen(filename, "w");
if (fp == NULL) {
printf("Error opening file for writing\n");
exit(1);
}
for (int i = 0; i < MAX_STUDENTS; i++) {
fprintf(fp, "%s %d %lf\n", students[i].name, students[i].id, students[i].age);
}
fclose(fp);
}
// Function to read student data from a file
void read_students_from_file(struct student students[], const char* filename) {
FILE* fp = fopen(filename, "r");
if (fp == NULL) {
printf("Error opening file for reading\n");
exit(1);
}
char name[MAX_NAME_LENGTH];
int id;
double age;
int i = 0;
while (fscanf(fp, "%s %d %lf", name, &id, &age) != EOF && i < MAX_STUDENTS) {
strcpy(students[i].name, name);
students[i].id = id;
students[i].age = age;
i++;
}
fclose(fp);
}
// Function to find the name of the oldest student
char* find_oldest_student_name(struct student students[]) {
int max_age_index = 0;
for (int i = 1; i < MAX_STUDENTS; i++) {
if (students[i].age > students[max_age_index].age) {
max_age_index = i;
}
}
return students[max_age_index].name;
}
// Main program
int main() {
struct student students[MAX_STUDENTS];
// Populate the array with user data
populate_students(students);
// Save student data to a file
save_students_to_file(students, "students.txt");
// Read student data from a file
struct student students_from_file[MAX_STUDENTS];
read_students_from_file(students_from_file, "students.txt");
// Find the name of the oldest student
char* oldest_student_name = find_oldest_student_name(students_from_file);
printf("The name of the oldest student is %s\n", oldest_student_name);
return 0;
}
This program defines a structure called student with fields for name, id, and age. It creates an array of size 5 of this structure, populates it with user data, and saves it to a file. Then it reads the data back from the file into another array of the same structure and finds the name of the oldest student in the array.
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many automobile engines have cast-iron cylinders and aluminum pistons. what kinds of problems could occur if the engine gets too hot? (the coefficient of volume expansion of cast iron is approximately the same as that of steel.)
Answers
Engines are far more likely to experience issues if their recommended temperature range is consistently exceeded. Overheating can lead to poor emissions, decreased fuel efficiency, and decreased performance.
What is automobile?Automobile, also known as a motorcar or car, is a typically four-wheeled vehicle primarily used for transporting people. It is typically powered by an internal combustion engine that burns a volatile fuel.
A passenger vehicle that does not carry passengers for employment is referred to as a "automobile." Station waggons, sedans, vans, and sport utility vehicles fall within this category.
The engine may overheat or even seize up when the coolant is low. A piston may be able to solder itself into a cylinder if the metal heats up sufficiently. Your engine is likely wrecked if this occurs.
Thus, this kind of problem can be there if engine gets too hot.
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giúp em làm câu này với ạ em cám ơn em cần gấp lắm
Answers
Answer:
the problem I see real people here to have that much respect that is not going in that direction or the best.
What does efficiency measure?
Answers
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:
Which vegetation type do you think will cause fire to spread the fastest?
Explain why you chose that answer.
Answers
Answer:B
Explanation: Dead Grass more flammable than wood and Green grass contains water.
How many spokes should a wheel have?
Answers
Answer: There should be Five of em.
Answer:
There should be five.
if stall speed in ktas for an aircraft us 100 ktas at sea level, what is the stall speed in ktas of the aircraft at 5000 ft density altitude
Answers
Answer:
my friend here justin
Explanation:
hes already taken
Complete the sentence using the correct term.
are made without yeast and are often savory or sweet.
Answers
Answer:
Quick Breads
Explanation:
I think this is correct. I am not for sure i just looked it up and it says word for word that this is the answer.
Answer:
Quick Breads
Explanation:
I got it right on my Plato test
Calculate moments about points A,B,C,D
Answers
Answer:
24cm sureeeereereeeeee
The financially important reaction to produce the valuable product B (not the real name) was carried out in Jesse Pinkman's garage. This breaking bad, fly-by-night company is on a shoestring budget and has very little money to purchase equipment. Fortunately, cousin Bemie has a reactor surplus company and get reactors for them. The reaction AB+C takes place in the liquid phase. Below is the Levenspiel plot for this reaction. You have up to $10,000 to use to purchase reactors from those given below. Reactor Type Number Volume (dm) Cost CSTR 2 2 $1.000 CSTR 4 $2,000 PFR $2.000 CSTR $4,000 CSTR 58.000 01 02 03 04 05 06 07 08 0.9 PER 2 12 56,000 What reactors do you choose, how do you arrange them, and what is the highest conversion you can get for S10,000? Approximately what is the corresponding highest conversion with your arrangement of reactors? Scheme and sketch your reactor volumes.
Answers
The chosen reactors and their arrangement can achieve the highest possible conversion within the given budget of $10,000.
To achieve the highest conversion with a budget of $10,000, we need to choose the reactors with the lowest cost per volume and arrange them in a way that maximizes the conversion. From the given options, the CSTR reactors with a cost of $1,000 and $2,000 have the lowest cost per volume. We can purchase two of the $1,000 CSTR reactors and one of the $2,000 CSTR reactors for a total cost of $4,000. We can then use the remaining $6,000 to purchase three of the $2,000 PFR reactors.
The arrangement of the reactors should be as follows:
- The two $1,000 CSTR reactors should be placed in series to achieve a higher conversion.
- The $2,000 CSTR reactor should be placed in series with the two $1,000 CSTR reactors to further increase the conversion.
- The three $2,000 PFR reactors should be placed in series with the CSTR reactors to achieve the highest possible conversion.
The highest conversion that can be achieved with this arrangement of reactors is approximately 0.8, as shown in the Levenspiel plot. The corresponding highest conversion with this arrangement of reactors is approximately 0.8.
The reactor volumes can be sketched as follows:
CSTR (2 dm) -> CSTR (2 dm) -> CSTR (4 dm) -> PFR (2 dm) -> PFR (2 dm) -> PFR (2 dm)
Overall, the chosen reactors and their arrangement can achieve the highest possible conversion within the given budget of $10,000.
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What is the proper distance from the feet of a straight ladder to the wall?
Answers
Answer:
One Foot
Explanation:
The general rule is to maintain a distance of one foot per four feet of height.
A 150-lbm astronaut took his bathroom scale (a
spring scale) and a beam scale (compares masses) to the
moon where the local gravity is g ! 5.48 ft/s2
. Determine
how much he will weigh (a) on the spring scale and (b) on
the beam scale.
Answers
Given the following data:
Mass of astronaut = 150-lbm.
Acceleration due to gravity on Moon = 5.48 ft/s².
What is weight?Weight can be defined as the force acting on an object or a physical body due to the effect of gravity. Also, the weight of a physical object (body) is typically measured in Newton or ounces.
How to calculate the weight of this astronaut?Mathematically, the weight force on a physical body can be calculated by using this formula:
W = mg
Where:
W represents the weight.m represents the mass.g represents the acceleration due to gravity.Substituting the given parameters into the formula, we have;
Weight = 150 × 1/32.2 × 5.48
Weight = 25.5 lbf.
For the weight on beam scale.A beam scale is a measuring instrument that is designed and developed to compare the masses of a physical body and as such, it's not affected by the variations in acceleration due to gravity. Therefore, the beam scale would read 150-lbf as it read on earth.
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True or false? if i were to hook up an ac voltage source to a resistor, the voltage drop across the resistor would be in phase with the current in the circuit.
Answers
Answer: True
Explanation:
A vibration system consists of a mass 50 kg, a spring of stiffness 30 kN/m and a damper. The
damping provided is only 20% of the critical value. Determine (a) the damping factor, (b) the
critical damping coefficient, (c) the natural frequency of the damped vibrations, (d) the
logarithmic decrement and (e) the ratio of two consecutive amplitudes.
Answers
Answer:
20% of the critical value. Determine (a) the damping factor, (b) the
Explanation:
A motor enclosure that incorporates a separate motor-driven blower mounted on the enclosure is
O air-cooled.
nonventilated.
Opipe-ventilated.
O externally ventilated.
ventilated.
Answers
A motor enclosure that incorporates a separate motor-driven blower mounted on the enclosure is Ventilated.
What is motor enclosure?Motor enclosure is a protective box or housing that is used to protect electric motors and their components from dust, dirt, moisture, and other environmental elements. It is also used to prevent accidental contact with the moving parts of the motor. Motor enclosure is important in ensuring the safe operation of an electric motor and can help extend the life of the motor. The most common types of motor enclosures include open drip proof (ODP), totally enclosed fan cooled (TEFC), and totally enclosed non-ventilated (TENV). Depending on the environment and application, a different type of motor enclosure may be needed to ensure optimal performance and safety.
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_____ can process many pieces of data at the same time and learn to recognize patterns.
Answers
Neural networks can process many pieces of data at the same time and learn to recognize patterns.
However, similar to the brain, such networks are capable of processing a variety of information concurrently, learning to spot patterns, and programming themselves to address similar issues on their own. Single instruction multiple data, or SIMD, is a type of parallel processing where a computer has two or more processors that all follow the same instruction set but handle distinct types of data. Large data sets that are based on the same predefined benchmarks are frequently analyzed using SIMD. Haptic interfaces, which are frequently used in gaming consoles, clothes, and sports training equipment, give tactile feedback by imparting vibrations or pressures to the user using actuators that are embedded in the device (for example, a cell phone).
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The US navy recently funded the development of submersible drones to investigate shipwrecks located
on the ocean floor of the Marianas Trench. In this region of the world the ocean floor is located about
7.0 miles below sea level. Calculate the pressure a submersible drone would need to withstand 7 miles
below the surface of the ocean.
Answers
The pressure a submersible drone would need to withstand 7 miles is given to be 114.49 MPA
How to solve for the pressure of the submersible droneWer have P = rho x H
Where Rho s is the Sp x the weight of the sea water
= 10163 . 16n/m²
We are to proceed to find the value of H
H = 7. 0 miles below sea water
= 11265.408m
P = 11265.408m x 10163 . 16n/m²
= 114,492.144
= 114.49 MPA
Hence we can say that the pressure of the submersible drone should be equal to 114.49 MPA
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Two technicians are discussing torsion bars. Technician A says that many torsion bars are adjustable to allow for ride height adjustment. Technician B says that torsion bars are usually marked left and right and should not be switched side to side. Which technician is correct
Answers
Explanation:
Both technicians are correct. Technician A is correct that many torsion bars are adjustable to allow for ride height adjustment. This is because the amount of torsion in the bar determines the ride height, so adjusting the torsion can change the ride height. Technician B is correct that torsion bars are usually marked left and right and should not be switched side to side. This is because torsion bars are designed to work with a specific side of the vehicle, so switching them side to side can cause problems with the suspension and handling of the vehicle.
roblem 1. (10 point) Torch of the form (+1 for a carreter, -0,5 for the The STARLE MATCH problem polyamid. "T A tree is a connected, acycle graph IF (1) - Olein)) then fin) - P(1) - O(n)}} 1 MERGESORT
Answers
Problem 1: The problem statement involves the concept of a torch, carreter, polyamid, starle match, and mergesort. A torch can be represented by a mathematical expression of the form (+1) for a carreter and (-0.5) for the polyamid.
The STARLE MATCH problem is related to finding matches between starle objects. In the context of graph theory, a tree is a connected and acyclic graph. It satisfies two conditions: (1) it is connected, meaning that there is a path between any two vertices, and (2) it is acyclic, meaning that there are no cycles or loops in the graph.
The expression "IF (1) - Olein)) then fin) - P(1) - O(n)}} 1 MERGESORT" seems incomplete and lacks clarity. It appears to involve conditional statements and possibly relates to the complexity analysis of the mergesort algorithm. Mergesort is a popular sorting algorithm that divides the input array into smaller subarrays, recursively sorts them, and then merges them back together to obtain a sorted output.
However, without further information or clarification, it is difficult to provide a more precise explanation or solution to this problem.
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