Chemical recycling of Polyethylene terephthalate) (PET) involves the breakdown of PET into its constituent monomers, which can then be used to create new PET or other valuable chemicals. This process has shown promising results in terms of reducing waste and increasing the circularity of PET.
In terms of experimental results, chemical recycling of PET has demonstrated the ability to break down the polymer into its building blocks, namely ethylene glycol (EG) and terephthalic acid (TPA). Various methods such as hydrolysis, glycolysis, and methanolysis have been explored to achieve this depolymerization.
In terms of product results, chemical recycling offers several advantages. First, it allows for the production of high-quality recycled PET with minimal loss of properties. The resulting recycled PET can be used in a wide range of applications, including packaging, textiles, and automotive parts. Second, chemical recycling enables the recovery of valuable chemicals beyond PET monomers. For example, the byproducts of the process, such as EG and TPA, can be used as feedstocks for the production of other polymers or chemicals, thereby increasing the overall value and sustainability of the recycling process.
Overall, chemical recycling of PET has shown promise as an effective method to tackle the plastic waste problem. It offers the potential to close the loop on PET production and consumption, reducing the reliance on fossil resources and minimizing environmental impact. Continued research and development in this field are crucial to optimize the process, improve efficiency, and scale up chemical recycling technologies.
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If the time quantum get too large, RR scheduling degenerates to ? A) SJF B) FCFS C) Shortest-remaining-time-first D) Multilevel queue
The correct answer is option B(First-Come-First-Serve (FCFS). If the time quantum for Round Robin (RR) scheduling gets too large, the RR scheduling algorithm degenerates to First-Come-First-Serve (FCFS) scheduling.
This is because the time quantum specifies the maximum amount of time that a process can execute before it is preempted and another process is scheduled. If the time quantum is set too large, it essentially becomes the same as not having a time quantum at all, and processes will execute until completion without being preempted. This means that processes with shorter burst times will have to wait for longer periods before being executed, leading to an increase in the average waiting time.
This behavior is similar to FCFS scheduling, where the process that arrives first is executed first without any preemption. Therefore, it is important to set an appropriate time quantum that balances the overhead of context switching with the need for fair allocation of CPU time among processes.
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12. Some engine blocks are made of _______, but its high cost prohibits use in average-priced vehicles. A. cast iron B. aluminum C. magnesium alloy D. hydrocarbon
How do pressure cookers work?
Suppose, you are cleaning your reading table and keeping your books one upon another. Your
books are numbered are as 1,2,3,4,5. But you want your books to be ordered in such a way so
that when you pick up the first book and last book, those should be always 3 and 1, respectively.
The rest three books (2, 4 and 5) can be in any order.
Which collection is suitable here? Show its adding and removing methods in operation.
Answer:
it's answer B. I took the test
Can space debris take out a whole state
Which of these was not part of the OBD II implementation?
OA. Common Codes
OB. Readiness Monitors
OC. Digital Processing
OD. Standard Terminologies
The Digital Processing is not part of the OBD II implementation.
What is an OBD II system?OBD II is known to be a kind of acronym for On-Board Diagnostic II. This is known to be the second generation of on-board self-diagnostic equipment that is needed for light- and medium-duty California vehicles.
The OBD-II is said to be a kind of on-board computer that handles emissions, , speed, etc.
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e^×-3x^2=0 find the x
Each component of the equation is graphed. The point of intersection's x-value provides x is 0.45896226,0.91000757,3.73307902
How do you calculate x's value?The algebraic expression should often take one of the following forms: addition, subtraction, multiplication, or division. Bring the variable to the left and the remaining values to the right to determine the value of x. To determine the outcome, simplify the values. In algebra, the letter "x" is frequently used to denote an unknown value. It is known as a "variable," or occasionally a "unknown."Each component of the equation is graphed. The point of intersection's x-value provides the answer. x is 0.45896226,0.91000757,3.73307902
x≈−0.45896226,0.91000757,3.73307902
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Each component of the equation is graphed. The point of intersection's x-value provides x is 0.45896226,0.91000757,3.73307902.
How do you calculate x's value?A common form for an algebraic expression is one of the following: addition, subtraction, multiplication, or division. To find the value of x, move the variable to the left and the other values to the right.Simplify the values to determine the result. The symbol "x" is frequently used in mathematics to represent an unknowable value. It's referred to as a "variable" or, sporadically, an "unknown."Each component of the equation is graphed. The point of intersection's x-value provides x is 0.45896226,0.91000757,3.73307902The algebraic expressions are divided into monomial, binomial, trinomial, quadrinomial, polynomial, etc. categories based on the number of terms they contain. The algebraic expressions are divided into categories based on the amount of variables they contain, such as expressions with one variable, two variables, three variables, etc.Each component of the equation is graphed. The point of intersection's x-value provides the answer. x is 0.45896226,0.91000757,3.73307902
x≈−0.45896226,0.91000757,3.73307902
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In this worksheet, we will use the drag equations to calculate drag force. Assume the following:
1 liter bottle with radius = 40 mm.
The drag coefficient is 0.299 for the 150 mm long nose cone.
Velocity is 30 m/s.
Answer:
Explanation:
plz provide the density
w/ density, the drag force can be calculated:
drag force = drag coefficient * cross-section area * .5 * density * Velocity^2
where drag coefficient is given as 0.299,
cross-section area = 3.14*0.04^2
Velocity given as 30
Answer:
Explanation:
Drag force is given by the equation: 1/2 * drag coefficient * density * area * velocity^2.
So drag force = 1/2 * 0.299 * density * 3.14 * (40/1000)^2 * 30^2
You are using a Jupyter Notebook to explore data in a DataFrame named productDF. You want to write some inline SQL by using the following code, and visualize the results as a scatter plot: %%sql SELECT cost, price FROM product What should you do before running a cell with the %%sql magic? a. Create a new DataFrame named product from productDF.select("cost", "price") b. Persist the productDF DataFrame using productDF.createOrReplaceTempView("product") c. Filter the productDF dataframe using productDF.filter("cost == price") d. Rename the columns in the productDF DataFrame using productDF.withColumnRenamed("cost", "price")
Hey guys can anyone list chemical engineering advancement that has been discovered within the past 20 years
Implement the following Matlab code:
x=zeros(10,128);
t1=[0:1/128:1-1/128];
z=cos(2*pi*2*t1);
x(1,:)=z;
x=reshape(x,1,1280);
figure(1);
plot(x)
Examine Figure 1 – what does it “look like”? Zoom in. Take the FFT of x and explain what you see.
Manipulate the FFT and perform the IFFT to create a signal which is a continuous (i.e. no interpolating zeroes) sinusoid in the “time” domain. Explain the amplitude of the sinusoid.
The amplitude of the sinusoid is 28384 *x soít cos.
What is amplitude?Amplitude is defined as the greatest deviation from equilibrium of a point on a vibrating body or wave in terms of displacement or distance traveled. In most cases, amplitude is calculated by looking at a wave graph and determining the height of the wave from rest. The strength or intensity of the wave is gauged by its amplitude.
Sinusoid is defined as a signal with sine wave characteristics. In the liver, spleen, and bone marrow, sinusoids and irregular tubules transport blood in place of venules and capillaries. The sine or cosine functions from trigonometry form the foundation of sinusoidal signals, which are periodic functions.
Thus the amplitude of the sinusoid is 28384 *x soít cos.
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Why do you have to know each testing tools?
Answer:
YAH A BLINK
Explanation:
If u are asking about softwares
then,
Software testing tools are often used to assure firmness, thoroughness and performance in testing software products.
\(#Liliflim\)
since every tool is important, it is also important that we know and learn how to use it for the coming of the day so we can fix the things that are broken to us.
tonya is a network engineer. she is developing a new security policy for her company's it infrastructure. she understands that the heart of performing a risk assessment, which is a necessary part of policy development, is understanding assets, likelihoods, threats, and .
Tonya, as a network engineer, recognizes that performing a risk assessment is crucial for developing a new security policy for her company's IT infrastructure. In this process, she needs to consider and understand the assets, likelihoods, threats, and vulnerabilities associated with the organization's systems and data.
A risk assessment involves identifying and evaluating the assets, such as hardware, software, and sensitive information, that need protection. Tonya will assess the likelihood of various threats or potential incidents occurring, such as unauthorized access, data breaches, or system failures. Additionally, she will analyze the existing vulnerabilities within the IT infrastructure that could be exploited by threats.
By thoroughly understanding these components of a risk assessment, Tonya will be able to assess the level of risk associated with each asset, prioritize security measures, and develop an effective security policy that addresses the identified risks.
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g Calculate a better value for the convection coefficient using resources from heat transfer. Assume forced convection of the air inside the chimney moving at 4 ft/s. Assume convection on the outside of the chimney is due to natural convection. Use the temperature plots or probe of the inside and outside surfaces to calculate the bulk fluid temperature and obtain accurate material properties for air based on these temperatures. Hint: Your new results for h should on the same order of magnitude of the value I provided. If it isn't, check your units. Update to you calculated values for h and resolve your model.
Answer:results for h should on the same order of magnitude of the value I provided. If it isn't, check your units. Update to you calculated values for h and resolve your model.
Explanation:
What did the US and USSR agree on in the INF Treaty? They agreed to reduce nuclear weapons. They agreed that new European nations would be democratic. They agreed to tear down the Berlin Wall. They agreed that the USSR should break into several countries.
Answer:
they agreed to reduce nuclear weapons
Answer:
A
Explanation:
Edu 2023
Dialogue must be very __________ in order to best offer the reader bite-size information that will propel the story along.
Dialogue must be very concise or succinct in order to best offer the reader bite-size information that will propel the story along.
In storytelling, dialogue serves multiple purposes, including conveying information, developing characters, and advancing the plot. By keeping the dialogue concise, the writer can deliver essential information efficiently, without overwhelming the reader with excessive details or unnecessary conversation. Bite-size dialogue allows for a faster pace and keeps the reader engaged, as they receive crucial information in a digestible manner. It also helps maintain the flow of the story by avoiding long-winded conversations that may slow down the narrative. Concise dialogue ensures that every word counts and serves a purpose, enhancing the overall impact of the story.
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What are the rigging devices used to move loads such as steel plates and sheet piles without the use of slings, but grip the load by biting down and using jaw tension to secure the load
The rigging device which are used to move loads without the use of slings, but grip the load by biting down and using jaw tension to secure the load, is lifting clamps.
What are the rigging devices?The rigging devices are used to lift the objects and items when the safety is required. This device is used in the industries.
Types of rigging devices
Rigging hooks-These rigging device is used when the heavy load need to be lift.Lifting clamps-Lifting clamp are used to lift the device with jaw tension to secure the load. In this, there is no use of slings.Pulley and blocks-In the load is lifts with the help of block and pulley arrangement. This is a widely used rigging device.Thus, the rigging device which are used to move loads without the use of slings, but grip the load by biting down and using jaw tension to secure the load, is lifting clamps.
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The following incomplete method is intended to sort its array parameter arr in increasing order.
// postcondition: arr is sorted in increasing order
public static void sortArray(int[] arr)
{
int j, k;
for (j = arr.length - 1; j > 0; j--)
{
int pos = j;
for ( /* missing code */ )
{
if (arr[k] > arr[pos])
{
pos = k;
}
}
swap(arr, j, pos);
}
}
Assume that swap(arr, j, pos) exchanges the values of arr[j] and arr[pos]. Which of the following could be used to replace /* missing code */ so that executing the code segment sorts the values in array arr?
A
k = j - 1; k > 0; k--
B
k = j - 1; k >= 0; k--
C
k = 1; k < arr.length; k++
D
k = 1; k > arr.length; k++
E
k = 0; k <= arr.length; k++
As it meets the criteria for looping through the unsorted portion of the array and iterating from the first unsorted element up to the current value of j, k = 1; k arr. length; k++.
How can I determine how many elements there are in an unsorted array?We must do a linear search to locate the largest value in an unsorted array by examining each element and keeping note of the location the maximum has been discovered thus far.
Which approach requires the least amount of time to search an entry in an unsorted array?The most popular method of searching an element in an unsorted array is by performing a linear search, which checks each element one by one from start to finish and has an O(n) complexity.
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Before you attempt to change a tire yourself, you should _____.
A. put on a pair of gloves
B. read your vehicle owner's manual for any special directions or warnings.
C. always call for emergency assistance first
D. let the remaining air out of the flat tire
Answer: read your vehicle owner's manual for any special directions or warnings.
Answer:
B. read your vehicle owner's manual for any special directions or warnings.
Explanation:
What does efficiency measure?
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:
are programmable logic controllers more closely associated with the process industries or the discrete manufacturing industries?
Programmable logic controllers are more closely associated with the discrete manufacturing industries.
Discrete manufacturing industries involve the production of distinct items, such as automobiles, furniture, and toys. Programmable logic controllers are used in these industries to control the production processes and ensure that each item is produced correctly and efficiently.
In contrast, process industries involve the production of continuous products, such as chemicals, food, and pharmaceuticals. While programmable logic controllers can be used in these industries, they are not as closely associated with them as they are with discrete manufacturing industries.
In summary, programmable logic controllers are more closely associated with the discrete manufacturing industries, where they are used to control the production of distinct items.
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4. "ABC constriction Inc." company becomes the lowest in the bed process to get a $21
million construction project for "Northern Inc.". Now “ABC construction Inc." planning to
make a formal contract agreement with the "Northern Inc.". What are the main elements of
this agreement to consider it as a legal contract? Explain.
Answer is given below
Explanation:
Agreement is a official contract. It is written form or even in orally form. The Agreement can be written in formal or informal terms or we can use purely verbal language.
Agreement made between two or more party that allow the court to decide.
The main 6 elements are:
1. Offer
2. acceptance
3. consideration
4. intention to create legal relation
5. certainty
6. capacity
1. The first elements of the contract herein are ABC Sanctions Inc., without the offer, as it is not valid under the Contract Act 1950, Contract Act.
2. Once the offer is made in the contract, acceptance must take place. The agreement must be approved by Northern Inc. When Northern Inc is clear with the offer, it will accept it once the terms and conditions of the agreement are clear.
3. Contrarification is the most important aspect of a contract, when considering a contract, the other person will give something in return. It is considered an exchange between ABC Construction Inc and Northern Inc.
4. It is necessary to have these elements in the contract. Contract law 1950 is one of the requirements of a valid contract, although there is silence about the need for a legal relationship.
5. Another important aspect of the contract is of course. The Contract Agreement sets out the terms and conditions that must be clearly understood by both ABC Contracts Inc and Northern Inc.
6. The ability of a contract to have a legal capacity on either side of the contract is more than eighteen years, since the age of 18 years is specified as the age at which the contract is entered into.
A) Describe factor substitution with respect to building heights. Be sure to explain at least two reasons why office buildings (with extra benefits from proximity) tend to "build up" rather than build out. B) A key assumption for being able to model building heights is that building a taller building increases the cost per square foot (the second floor is more expensive to construct than the first floor, ect.) What sort of strange result would we predict if this was not the case? ("Building up" got cheaper per floor with each floor constructed)?
A) Factor substitution: replacing factors of production for desired outcomes, like building taller or expanding horizontally in limited urban land.
B) Cheaper per floor: no height limit incentive, leading to excessively tall structures and inefficient resource allocation.
A) Factor substitution refers to the decision-making process where factors of production, such as land and capital, are substituted for one another to achieve a desired outcome. In the context of building heights, it relates to the trade-off between constructing taller buildings (building up) versus expanding horizontally (building out).
One reason office buildings tend to "build up" is the limited availability of land in urban areas. Cities often have limited space for new construction, leading to higher land costs. By constructing taller buildings, developers can maximize the utilization of limited land resources and accommodate more office space within a smaller footprint.
Another reason is the benefit of proximity. In urban environments, being close to other businesses, amenities, transportation, and potential clients is advantageous. Building up allows office buildings to take advantage of centralized locations and create a concentration of economic activity. This proximity can lead to increased collaboration, networking opportunities, and accessibility, which are beneficial for businesses.
B) If the assumption that building a taller building increases the cost per square foot were not valid and instead "building up" became cheaper per floor with each floor constructed, a strange result would be observed. In such a scenario, there would be no economic incentive to limit the height of buildings. Developers would have a strong incentive to keep building higher and higher, as each additional floor would cost less per square foot compared to the previous ones.
This could lead to extremely tall buildings with a large number of floors, possibly surpassing the practical and engineering limits. The skyline of cities would be dominated by excessively tall structures, even if there was no corresponding increase in demand or economic justification. The lack of increasing costs per floor would disrupt the typical cost-benefit trade-off associated with building heights and result in an inefficient allocation of resources.
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____ emotions can influence your driving. A. Only some B. All of your C. Only negative D. Only positive
If ALL are answered I will give thumbs up! Thank you!
How many 10-character passwords be formed using 26 letters, 12 digits, and 8 special characters, assuming that the password begins with a letter and contains at least one digit and one special character?
How many meal combos with a soda OR juice, AND a sandwich are possible using a choice of 8 kinds of soda, 5 kinds of juice, and 4 kinds of sandwiches?
How many different colors are possible by mixing 4 colors out of 9 different colors?
A coin is flipped 10 times. How many outcomes have at most two heads?
A person has 6 trousers, 8 shirts, 7 ties, and 4 pairs of shoes. In how many possible distinct ways can the person dress?
There are piles of Red, Blue, and Green balls, with each pile containing at least 14 balls. In how many ways can 14 balls be selected with at least 1 Red ball, at least 2 Blue balls, and at least 3 Green balls?
To calculate the number of 10-character passwords, we need to consider the available choices for each character position.
Given that we have 26 letters, 12 digits, and 8 special characters, we can start by selecting a letter for the first character since the password must begin with a letter.For the remaining 9 characters, we have a total of 26 + 12 + 8 = 46 choices per character position. However, we need to ensure that at least one digit and one special character are included in the password. How can the number of 10-character passwords be calculated given the combination of letters, digits, and special characters?The number of 10-character passwords that can be formed using 26 letters, 12 digits, and 8 special characters, assuming the password begins with a letter and contains at least one digit and one special character can be calculated as follows:First character (letter): 26 options
Remaining characters (letter, digit, or special character): (26 + 12 + 8) options
Total number of passwords: 26 * (26 + 12 + 8) ^ 9
The number of meal combos with a soda OR juice, AND a sandwich possible using a choice of 8 kinds of soda, 5 kinds of juice, and 4 kinds of sandwiches can be calculated by multiplying the choices for each category:
Number of soda choices: 8
Number of juice choices: 5
Number of sandwich choices: 4
Total number of meal combos: 8 * 5 * 4 = 160
The number of different colors possible by mixing 4 colors out of 9 different colors can be calculated using the combination formula:Total number of colors: 9
Number of colors to be chosen: 4
Total number of different color combinations: C(9, 4) = 9! / (4! * (9-4)!) = 9! / (4! * 5!) = 126
The number of outcomes when a coin is flipped 10 times and at most two heads appear can be calculated by summing the possibilities for zero, one, and two heads:Number of outcomes with zero heads: C(10, 0) = 1
Number of outcomes with one head: C(10, 1) = 10
Number of outcomes with two heads: C(10, 2) = 45
Total number of outcomes with at most two heads: 1 + 10 + 45 = 56
The number of possible distinct ways a person can dress, given 6 trousers, 8 shirts, 7 ties, and 4 pairs of shoes can be calculated by multiplying the choices for each clothing item:Number of trouser choices: 6
Number of shirt choices: 8
Number of tie choices: 7
Number of shoe choices: 4
Total number of distinct dressing combinations: 6 * 8 * 7 * 4 = 1,344
The number of ways to select 14 balls, with at least 1 Red ball, at least 2 Blue balls, and at least 3 Green balls from piles of Red, Blue, and Green balls, each pile containing at least 14 balls, can be calculated by considering the possible combinations:Number of ways to select 1 Red ball: C(Red, 1) = (number of Red balls)
Number of ways to select 2 Blue balls: C(Blue, 2) = (number of Blue balls)
Number of ways to select 3 Green balls: C(Green, 3) = (number of Green balls)
Total number of ways to select the required balls: (number of ways to select 1 Red ball) * (number of ways to select 2 Blue balls) * (number of ways to select 3 Green balls)
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Tony works as a Sorter in a processing factory. Which qualifications does he most likely have?
teaching skills, for helping people perform farm tasks, and creative thinking skills, for finding ways to process food
safety skills, for handling tools and food products, and honesty, for following rules and regulations
accuracy, for closely inspecting equipment and operating heavy machinery safely
accuracy, for monitoring animals, and patience and determination, for observing and caring for animals
Answer:
answer is B
Explanation:
Explain how, if you had Marginal Damage curves for two communities, you would aggregate them.
2. Explain intuitively why the optimal level of aggregate emissions would be where the Aggregate MAC and Aggregate MC curves cross.
Marginal damage curves are the additional cost incurred as a result of an increase in the level of pollution. The curves represent the tradeoff between pollution levels and the welfare of society in the two communities.
Aggregate damage curves can be obtained from combining the Marginal Damage Curves for the two communities.In order to aggregate Marginal Damage Curves for two communities, the pollution levels in the two communities should be equivalent. After obtaining the two Marginal Damage Curves, the next step is to add up the values of the Marginal Damages at the given pollution levels. The result of the addition is the Aggregated Marginal Damage Curve.The optimal level of aggregate emissions would be where the Aggregate MAC and Aggregate MC curves cross. This is because it is the point where the marginal cost of reducing emissions and the marginal abatement cost curves are equal. The intersection point of the two curves represents the least-cost method of achieving a given level of abatement of emissions, in other words, the optimal level of aggregate emissions. At this level, the additional cost incurred by reducing emissions further would be greater than the benefit derived from the reduction. Hence, this point of intersection is considered to be socially optimal because it minimizes the cost of achieving a particular level of abatement while still taking into account the harm caused by the pollution.
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Write a java program to do the following :
1- Reflecting the shape with the points :
( 160, 130 ), ( 220, 130), ( 220, 160 ), ( 190, 180 ) , ( 160, 160 )
about the line Y = - X + 500
2- Drawing the following shapes using loop and the methods
moveTo(), forward(), left(), right()
Here is a Java program that accomplishes the given tasks:
import java.awt.*;
import java.awt.geom.AffineTransform;
public class ShapeReflection {
public static void main(String[] args) {
// Reflecting the shape with the points
int[] xPoints = {160, 220, 220, 190, 160};
int[] yPoints = {130, 130, 160, 180, 160};
int numPoints = xPoints.length;
// Reflecting the shape about the line Y = -X + 500
for (int i = 0; i < numPoints; i++) {
int x = xPoints[i];
int y = yPoints[i];
// Calculate the reflected points
int newX = 500 - y;
int newY = 500 - x;
// Update the original points with the reflected points
xPoints[i] = newX;
yPoints[i] = newY;
}
// Drawing the shape using loop and methods
DrawingPanel panel = new DrawingPanel(600, 600);
Graphics2D g2 = panel.getGraphics();
g2.setColor(Color.BLACK);
g2.drawPolygon(xPoints, yPoints, numPoints);
}
}
This program uses the `java.awt` package to create a `DrawingPanel` and `Graphics2D` object for drawing the shape. It first reflects the given shape's points about the line Y = -X + 500 by calculating the new coordinates based on the reflection formula. Then, it draws the shape using the `drawPolygon` method of `Graphics2D`, passing the reflected points as arguments.
Please note that this code assumes you have the `DrawingPanel` class available in your Java environment. You may need to import or implement it separately, depending on your setup.
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1. A ball is released from rest from the roof of a 10 metre high building. A water
hose is located 12 metres from the base of the building. Water exits the hose at a
height of 1.5 m above the ground with velocity of 15 m/s.
(a) Determine the angle that the hose must be positioned at so that the water strikes
the ball
(b)
What is the height above the ground where the water strikes the ball?
Does the water strike the ball when the water is rising or falling?
(C)
(d)
What is the relative velocity of the water with respect to the ball when they
intersect?
What is the main difference between a generator and a motor?
A
Generator - mechanical energy to electrical energy
Motor - electrical energy to mechanical energy
a motor and generator only use electrical energy
Generator - electrical energy to mechanical energy
Motor - mechanical energy to electrical energy
D
They are the same machine.
Answer:
genorator- electrical to mechanical
motor- mechanical to electrical