This is a welding class assignment. Chapters 16 1. Explain the difference between the properties
of brazing and soldering 2. Explain the difference between brazing and braze weldine 3. List two
advantages of brazing over welding 4. What is capillary action? 5. List 4 methods of
mechanically cleaning a metal prior to brazing 6. Explain what type of braze will be produced
with each of the following flames. Oxidizing flame: Carburizing flame Neutral flame: 7. Which
alloys make up the following materials? Brass Bronzea
Solution
sollution-
1)Brazing joins two metal by heating and melting a filler that bond to the two pieces of metal and
join them.The filler has melting pont lower than the metal pieces. Brazing can join dissimilar
metal such as aluminium,gold,copper , silver and nickel .
Where as soldering is a llow temperature analog to brazing, soldering takes place with solder that
melt at below 840oF . Following metals can be soldered such as, gold,copper,silver, iron and
brass.When it solidifies, it joins the metal part. The bond is not as strong as in brazed joint.
2) In the braze welding process, the melting point of the filler wires is significantly lower to the
melting point of the parent material. The molten metal flows into the gap between the parts to be
joined and solidifies after wetting either across or between the surfaces via capillary action to
form the solid joint.
Brazing can join two dissimialar metal by heating and melting the filler that bond to the two
pieces of metal and join them.
3)two advantages
i) brazing does not allow the melting of base metals and produces a clean joint.
ii) brazing is effective in joining two dissimilar metals.
NOTE: For rest of the answers kindly post it again as we are not allowed to answer more than 3
in one go.
In this slideshow,i will show how to braze cast iron and you will get an idea on what is Brazing,properties of Cast iron,merits and drawback of brazing and you can also learn how to braze cast iron exhaust manifold.If you want to know more,Visit: https://migwelderz.com/braze-cast-iron/
How often do you solder? Have you ever asked yourself how important soldering is in the overall context of dental laboratory work – and which requirements are essential to achieve a successful soldering result? If you have, then you may find this background information insightful. Come with us on a journey through the past, present and future of the (dental) soldering technique!
In a classic study of blood types in Italy, Dr. Luigi Cavalli sfo.pdfarihantmobilepoint15
In a classic study of blood types in Italy, Dr. Luigi Cavalli sforza (1969) found that small,
isolated towns in mountain regions had reduced genetic diversity within populations, but showed
significant genetic differences from one town to the next. In valley regions with more movement
of people from place to place, he found more diversity within the population of any given town,
and fewer differences between towns. If you consider your genetic simulation to represent one
mountain town, and other lab groups to represent different mountain towns, can you explain
Cavalli-Sforza\'s results? How could you alter this lab procedure to simulate what happens in the
valley towns?
Solution
The genetic history of a group of populations is usually analyzed by reconstructing a tree of their
origins. Reliability of the reconstruction depends upon the validity of the hypothesis that genetic
differentiation of the populations is mostly due to population fissions followed by independent
evolution.
Most patterns found in the analysis of human living populations are likely to be consequences of
demographic expansions, determined by technological developments affecting food availability,
transportation, or Military power. During such expansions, both genes and languages are spread
to potentially vast areas.
The first tree of evolution based on gene frequencies of living humans was published 34 years
ago. It was based on genetic distances among 15 populations, 3 per continent, calculated from 5
blood groups, with a total of 20 alleles. The number of genes used was admittedly small, but it
was practically impossible to get more information at that time.
The most important difference is in the position of Europe, which with neighbor joining branches
out first after the splitting of Africans and non-Africans and with maximum likelihood is the last
but one..
I need help with questions 7 and 8 I think what I circled is correct.pdfarihantmobilepoint15
I need help with questions 7 and 8 I think what I circled is correct. It am not sure please help the
diamond shaped graph goes to question 7 7. Retia mirabilia (singular rete mirabile) are vascular
bundles that allow fish to secrete O2. In the above figure, red branches indicate lineages with
choroid blue branches indicate those with ladder retia, and white branches indicate absence of
Assuming the phylogeny evolution have been accurately inferred, we can infer that: a)
Swimbladder retia predate choroid retia b) Gains of swimbladder retia primarily took place in
lineages that already had choroid retia c) Loss of choroid retia causes gain of swimbladder retia
Choroid retia have been gained more often than swimbladder retia. 8. These trees for six
different groups of organisms for (A) tree frogs, (B) caecilians, (c) uropeltid snakes, (D)
freshwater fishes, (E) freshwater shrimps, and (F) crabs are all colored based on whether the
species come mainland India or Sri Lanka. Assuming these trees and the reconstruction of
ancestral from accurate, which of the trees includes a single well-supporte geographic
distributions are migration from Sri Lanka back to southern India? a) A, F b) B, C c) C d) A, B
Solution
7.The correct answer is:b.Gains of swimbladder retia primarily took place in lineages that
already had choroid retia.
8.The correct answer is:a. A ,F
Reason: The above answers are the information that can be collected through the graphs
mentioned.
More Related Content
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In this slideshow,i will show how to braze cast iron and you will get an idea on what is Brazing,properties of Cast iron,merits and drawback of brazing and you can also learn how to braze cast iron exhaust manifold.If you want to know more,Visit: https://migwelderz.com/braze-cast-iron/
How often do you solder? Have you ever asked yourself how important soldering is in the overall context of dental laboratory work – and which requirements are essential to achieve a successful soldering result? If you have, then you may find this background information insightful. Come with us on a journey through the past, present and future of the (dental) soldering technique!
Similar to This is a welding class assignment. Chapters 16 1. Explain the dif.pdf (20)
In a classic study of blood types in Italy, Dr. Luigi Cavalli sfo.pdfarihantmobilepoint15
In a classic study of blood types in Italy, Dr. Luigi Cavalli sforza (1969) found that small,
isolated towns in mountain regions had reduced genetic diversity within populations, but showed
significant genetic differences from one town to the next. In valley regions with more movement
of people from place to place, he found more diversity within the population of any given town,
and fewer differences between towns. If you consider your genetic simulation to represent one
mountain town, and other lab groups to represent different mountain towns, can you explain
Cavalli-Sforza\'s results? How could you alter this lab procedure to simulate what happens in the
valley towns?
Solution
The genetic history of a group of populations is usually analyzed by reconstructing a tree of their
origins. Reliability of the reconstruction depends upon the validity of the hypothesis that genetic
differentiation of the populations is mostly due to population fissions followed by independent
evolution.
Most patterns found in the analysis of human living populations are likely to be consequences of
demographic expansions, determined by technological developments affecting food availability,
transportation, or Military power. During such expansions, both genes and languages are spread
to potentially vast areas.
The first tree of evolution based on gene frequencies of living humans was published 34 years
ago. It was based on genetic distances among 15 populations, 3 per continent, calculated from 5
blood groups, with a total of 20 alleles. The number of genes used was admittedly small, but it
was practically impossible to get more information at that time.
The most important difference is in the position of Europe, which with neighbor joining branches
out first after the splitting of Africans and non-Africans and with maximum likelihood is the last
but one..
I need help with questions 7 and 8 I think what I circled is correct.pdfarihantmobilepoint15
I need help with questions 7 and 8 I think what I circled is correct. It am not sure please help the
diamond shaped graph goes to question 7 7. Retia mirabilia (singular rete mirabile) are vascular
bundles that allow fish to secrete O2. In the above figure, red branches indicate lineages with
choroid blue branches indicate those with ladder retia, and white branches indicate absence of
Assuming the phylogeny evolution have been accurately inferred, we can infer that: a)
Swimbladder retia predate choroid retia b) Gains of swimbladder retia primarily took place in
lineages that already had choroid retia c) Loss of choroid retia causes gain of swimbladder retia
Choroid retia have been gained more often than swimbladder retia. 8. These trees for six
different groups of organisms for (A) tree frogs, (B) caecilians, (c) uropeltid snakes, (D)
freshwater fishes, (E) freshwater shrimps, and (F) crabs are all colored based on whether the
species come mainland India or Sri Lanka. Assuming these trees and the reconstruction of
ancestral from accurate, which of the trees includes a single well-supporte geographic
distributions are migration from Sri Lanka back to southern India? a) A, F b) B, C c) C d) A, B
Solution
7.The correct answer is:b.Gains of swimbladder retia primarily took place in lineages that
already had choroid retia.
8.The correct answer is:a. A ,F
Reason: The above answers are the information that can be collected through the graphs
mentioned.
How to write main program for converting infix to postfix that allow.pdfarihantmobilepoint15
How to write main program for converting infix to postfix that allow user to enter as many input
as they want ( more than 1 test) and exist when the user enter the empty line?
Solution
Infix Expression :
Notation in which the operator separates its operands. Eg (a + b) * c. Infix notation requires the
use of brackets to specify the order of evaluation.
Postfix Expression :
Reverse Polish Notation or Suffix Notation Notation in which the operator follows its operands.
Eg a + b * c represented as abc*+.
Infix to Postfix Conversion Algo :
code:
Post Fix Expression Evaluation
Now after making the conversion what we have gained. As PostFix strings are parenthesis-free
notation mathematical calculations and precedence is already defined within the string and so
calculation is done very easily.
Postfix Expression evaluation Algo :
code:.
How can I upload a picture in here I tried with image properties ic.pdfarihantmobilepoint15
How can I upload a picture in here? I tried with image properties icon and connected the image
to the URL which is from \'picture painting\' or \'microsoft word\' program.
When I am uploading a picture, the picture is shown before posting question but it\'s not shown
after I posted question.
Solution
Take screenshots of that question. Go to \"Ask a study question\" and post question over there.
You can a attach a file upto 10MB. So once again try it..
For some DNAs it is possible to separate the two strands, after dena.pdfarihantmobilepoint15
For some DNAs it is possible to separate the two strands, after denaturation, in a CsCl gradient.
Part A What property of any DNA determines where it will band in a CsCl gradient? density,
charge. polarity. solubility
Part B What kind of DNA might have two strands that differ sufficiently in this property that
they could be separated after denaturation?
UT-rich DNA, GC-rich DNA, AT-rich DNA, AC-rich DNA
Solution
PART A: Density
The experiments done by Meselson and Stahl’s supported the model of semiconservative
replication of DNA. In their experiment, they obtained heavy DNA and light DNA by growing
Escherichia coli (E. coli) bacteria with a radioactive nitrogen isotope 15N, and the more common
isotope of nitrogen 14N respectively.
In the present experiment, the bacteria grown in 15N medium were allowed to grow in 14N
medium. Then the cultured bacteria were taken and the isolated DNA was dissolved and
centrifuged caesium chloride solution (CSCl). Now, the concentration gradient is established in
the test tube, and the DNA molecules move according to the gradient until they reach an
equilibriumdensity with the solution. DNA with 15N strand is heavier than the DNA with 14N
strand, so it reaches the bottom of the test tube.
PART B: GC-rich DNA
GC rich DNA contains high density, which also has high melting point..
Explain how stem cells obtained from IVF leftovers and somatic cell .pdfarihantmobilepoint15
Explain how stem cells obtained from IVF leftovers and somatic cell nuclear transfer differ in
terms of the sources of their genomes.
Solution
Oocytes from women were extracted and inseminated with thaed donor sperm, after the process
of insemination oocytes were successfully fertilized and developed into blastocyst stage and the
inner cell masses of the blastocyst that were removed yielded stem cell lines. From a left over
IVF, extraction of single blastomere is helpful.
In somatic cell nuclear transfer, the nucleus of a somatic cell is transferred to the cytoplasm of an
ennucleated egg which then becomes a zygote and is then allowed to develop to blastocyst stage.
Reference
1. Josefson, D. (2001). Embryos created for stem cell research.British medical journal,
323(7305), 127..
Does it appear that there is a difference in mean population size....pdfarihantmobilepoint15
Does it appear that there is a difference in mean population size... In 1995. a survey of 109
countries was conducted which recorded (among several other variables) the dominant religion
of the country as well as its population. It was thought that perhaps religion was somehow
correlated with population, so a one-way ANOVA was conducted on the data. An ANOVA
summary from the analysis is below: Does it appear that there is a difference in mean population
size for the various religions? Select the proper conclusion below. (Use a = 0.05.)
Solution.
Discussion Post The Constitution 19 19 Think about the discussion in.pdfarihantmobilepoint15
Discussion Post: The Constitution 19 19 Think about the discussion in chapter two on what the
led to the \"second founding\", the experiences of the colonists, and issues the framers
encountered in establishing the constitution. What was the primary aim of the framers of the
Constitution in creating that document? Why did they think it was necessary? What did they
hope to accomplish and avoid? Overall, do you think they were successful? Why or why not?
Write approximately 3 paragraphs in response to the assignment, then make constructive
comments on the posts of at least 2 other students. If you agree or disagree with one of your
classmates responses respectfully give a detailed response as to why. Saying\"I agree\" or \"I
disagree\" alone will not count as a constructive response to others\' work.
Solution
In 1865-86, the U.S. was in a dilema. The Civil War was over. President Lincoln was dead. And
the nation was beginning to face a series of unanswerable questions in the after result of the Civil
War like:
How does the U.S. answer the Declaration of Independence’s call for equality?
How does the country define what it means to be a U.S. citizen?
How broadly should the right to vote be like?
And what role should the federal government play in protecting the civil rights of all?
These are the some of the questions raised post Civil War after Lincoln\'s death. In answer to
them the FED Govt led by President Andrew Jhonson of republican party gave a speech in 1866.
The major part of his speech was indicating some enormous changes in constitution of U.S by
the results of Civil War.
As a result of this U.S \'s first Civil Rights bill passed on APR 1866 along the amendments in the
constitution took place (13,14,15th ) which was termed as Second Founding.
I do think it is necesarry to bring some social equality in the times .As many years the Slave
System was in act in U.S and it is one of the Sparking cause for the Civil War.
Yes, It could able to restrict the nerves of the people who are suppressed over year without
getting provoked..
Disease data for two independent groups are summarized into 2 by 2 t.pdfarihantmobilepoint15
Disease data for two independent groups are summarized into 2 by 2 tables stratified by gender.
Based on Mantel-Haenszel procedure, the Mantel-Haenszel summary relative risk ratio is 1.6 and
the crude relative risk ratio 1.5, the gender variable is
1)Positive confounders
2)Negative confounders
3)Can not be determined
Solution
ositive confounders
because the relative risk ratio are greater than 1.
Darwinian evolution, aka Darwinism, was merged with population g.pdfarihantmobilepoint15
Darwinian evolution, aka \"Darwinism\", was merged with population genetics in the early 1900s
to produce what is now commonly referred to as:
a. Neo-Lamarkianism
b. orthogenesis
c. mutationism
d. the modern synthesis
Solution
Ans:
A theory of the late 1800s and early 1900s, based on Lamarckism, that adaptive characteristics
acquired by an organism during its lifetime could be inherited by its offspring.
Ans: option a. Neo-Lamarkianism.
Determine the theoretical probability of flipping a TAIL on a coin. .pdfarihantmobilepoint15
Determine the theoretical probability of flipping a TAIL on a coin. Write this probability as a
fraction, decimal, AND percent,
Solution
solution-
when a coin is tossed total outcomes =2 (head or tail)
desired outcome = 1 (tail)
hence
probability = desired outcome/ total no. of outcome = 1/2 =0.5 =50%.
Construct a java method. This method chooses the number of sti.pdfarihantmobilepoint15
Construct a java method.
* This method chooses the number of sticks to pick up based on the
* sticksRemaining and actionRanking parameters.
*
* Algorithm: If there are less than Config.MAX_ACTION sticks remaining
* then the chooser must pick the minimum number of sticks (Config.MIN_ACTION).
* For Config.MAX_ACTION or more sticks remaining then pick based on the
* actionRanking parameter.
*
* The actionRanking array has one element for each possible action. The 0
* index corresponds to Config.MIN_ACTION and the highest index corresponds
* to Config.MAX_ACTION. For example, if Config.MIN_ACTION is 1 and
* Config.MAX_ACTION is 3, an action can be to pick up 1, 2 or 3 sticks.
* actionRanking[0] corresponds to 1, actionRanking[1] corresponds to 2, etc.
* The higher the element for an action in comparison to other elements,
* the more likely the action should be chosen.
*
* First calculate the total number of possibilities by summing all the
* element values. Then choose a particular action based on the relative
* frequency of the various rankings.
* For example, if Config.MIN_ACTION is 1 and Config.MAX_ACTION is 3:
* If the action rankings are {9,90,1}, the total is 100. Since
* actionRanking[0] is 9, then an action of picking up 1 should be chosen
* about 9/100 times. 2 should be chosen about 90/100 times and 1 should
* be chosen about 1/100 times. Use Config.RNG.nextInt(?) method to
* generate appropriate random numbers.
*
* @param sticksRemaining
* The number of sticks remaining to be picked up.
* @param actionRanking
* The counts of each action to take. The 0 index corresponds to
* Config.MIN_ACTION and the highest index corresponds to
* Config.MAX_ACTION.
* @return The number of sticks to pick up. 0 is returned for the following
* conditions: actionRanking is null, actionRanking has a length of
* 0, or sticksRemaining is <= 0.
Solution
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
String userName = \"\";
String intialStringError = \"\";
int intialSticks = 0;
String prompt = \"How many sticks are there on the table initially (10-100)? \";
//Max number of tries
int[] numSticksArray = new int[100];
boolean intialBooleanError = false;
boolean userChoiceDone = false;
int userChoice = 0;
String userError = \"\";
String friendName = \"\";
int userStickNum = 0;
String userStickError = \"\";
String friendStickError = \"\";
boolean friendTurnOver = true;
boolean userTurnOver = true;
int z = 0;
System.out.print(\"\ What is your name? \");
userName = input.nextLine();
System.out.println(\"Hello \" + userName.trim() + \".\");
intialSticks = promptUserForNumber(input, prompt, Config.MIN_STICKS,
Config.MAX_STICKS);
System.out.println(\"\ Would you like to:\");
System.out.println(\" 1) Play against a friend\");
System.out.println(\" 2) Play against computer (basic)\");
System.out.println(\" 3) Play against computer with AI\");
do{
System.out.print(\"Which do you choose (1,2,3)? \");
if(input.hasNextInt())
{
userChoice = inp.
Complete the sentences with the correct terms. Solution1. Phot.pdfarihantmobilepoint15
Complete the sentences with the correct terms.
Solution
1. Photosynthesis uses light energy to produce ATP, NADPH and O2.
2. Chlorophyll captures the light energy for photosynthesis.
3. ATP and NADPH drive the calvin cycle
4. Calvin cycle performs carbon fixation during photosynthesis.
5. Water is converted into oxygen to release electrons in the light reactions..
BIOCHEMISTRY 1. explain carbohydrate nonmenclature (aldose vs. ket.pdfarihantmobilepoint15
BIOCHEMISTRY
1. explain carbohydrate nonmenclature (aldose vs. ketose and number of carbons, numbering of
carbons), including characterizations of chirality (optical isomers, enantiomers, diastereomers,
and epimers)
2.identify common and important disaccarides
3.distinguish all structural and biochemical similarities and differences between starch,
cellulose, and glycogen
4.what are fat soluble vitamins and what are their roles in the body
Solution
1. The monosaccharides are the simple sugar molecules with general formula (CH2O) n. They
are mainly composed of Carbon, Hydrogen and Oxygen. Monosaccharides possess functional
groups such as aldehydes and ketones in their structure. Basing on the functional group present
they are named as aldose - that contains an aldehyde group, ketose - that contains a ketone group.
They also contain many hydroxyl groups. Hence, monosaccharides are called as polyhydroxy
aldehydes or polyhydroxy ketones. A Hexose having ketone group is known as Ketohexose.
Fructose is an example of ketohexose. . Hexose with an aldehyde group is called as Aldohexose.
Example of an Aldohexose is Glucose.
A Triose is a monosaccharide having three carbon atoms in its skeleton. Glyceraldehyde is an
example of a triose.A Pentose is a monosaccharide having five carbon atoms in its structure.
Ribose is an example of a pentose. Both triose and pentose are monosaccharides differing in
number of carbon atoms in their skeleton.
The molecules having a Carbon atom bonded to four different functional groups are called
‘chiral molecules’. The center carbon atom is called chiral carbon. Any molecule having a chiral
carbon exists in a pair of enantiomers, which are nonsuperimposable mirror images. Stereo
isomers are the molecules having same molecular formula and same bonding but differ in spatial
arrangement of atoms. They are mirror images. They rotate the plane polarized light either to
clockwise or to counter clockwise. If they rotate the plane polarized light to clockwise, they are
called as ‘dextro rotatory’ (D forms) and are indicated by (+) sign. If they rotate the plane
polarized light to counter clockwise, they are called as ‘levo rotatory’ (L forms) and are indicated
by (-) sign.
Diastereomers can be defined as a pair of stereo isomers that are not enantiomers. This indicates
that the isomers are not mirror images and they totally differ from each other. Enantiomers
though nonsuperimposable mirror images they have same physical and chemical properties, they
differ only in rotation of plane polarized light. Diastereomers have different physical and
chemical properties.
2. The disaccharides are composed of two monosaccharide units. Maltose, Lactose and Sucrose
are the examples of disaccharides. These are referred by their common names like, Malt sugar,
Milk sugar and Table sugar. Galactose is a hexose molecule. It is one of the components of
disaccharide Lactose or milk sugar. It is found in the milk of mammals. -D - N -
acetylgalactosami.
Can a degree 3 polynomial intersect a degree 4 polynomial in exactly .pdfarihantmobilepoint15
Can a degree 3 polynomial intersect a degree 4 polynomial in exactly five points? Explain.
Solution
Let, f(x) be degree 3 polynomial
ANd g(x) be degree 4 polynoimal
So points of intersection are given by roots of the polynomial
h(x)=g(x)-f(x)
But, h(x) is degree 4 polynoimal and hence has atmost 4 roots
So there can be atmost 4 points of intersection.
All chordates have while all vertebrates have homeothermya notochor.pdfarihantmobilepoint15
All chordates have while all vertebrates have homeothermy/a notochord sometime during
development. a backbone/live birth and mammary glands in the females. a notochord sometime
during their development/a backbone and bilateral symmetry. a backbone/fur or hair. Which of
the following is true of the bonobo? the males are highly dominant, and the females only mate
with the most dominant male. they are more closely related to the gibbons than to any other
primate. they are an Old World monkey that lives in central African savannahs. all of the above
are true. none of the above are true. The term \"hominoid\" refers to monkeys and apes. apes
and humans. tarsiers and lemurs. prosimians and monkeys.
Solution
QUESTION 15: The term hominoid refers to
Ans- Apes and monkeys.
A member of the biological superfamily Hominoidea, including all modern great apes and
humans and a number of their extinct ancestors and relatives.
QUESTION 13: All chordates have -----while all vetebrates have -----
Ans: C--a notochord something during their development/a backbone and bilateral symmetry
Vertebrates are characterized by the presence of a vertebra or backbone skeletal bones that form
an endoskeleton a bilaterally symmetrical structure.
The notochord is replaced or surrounded by the backbone in the organism\'s adult
stage,Chordates also have pharyngeal slits.
Chordates also have a dorsal nerve cord that runs down the length of the organism.
QUESTION 14: which of the following is true of the bonobo
ANS : None of the above are true.
6. What factor describes the overall thermal performance of a buildin.pdfarihantmobilepoint15
6. What factor describes the overall thermal performance of a building assembly?
Solution
Solar energy ( temperature) is the factor that describes overall thermal performance of building
assembly.
Because solar energy is stored in the the form of thermal energy in the building assembly
And this energy is responsible for overall thermal performance of building assembly.
After reading about the history of welfare in the USA, describe in y.pdfarihantmobilepoint15
After reading about the history of welfare in the USA, describe in your own words how our
current welfare system came to be. What are your thoughts about Sweden\'s welfare system?
How would creating a similar system in the USA impact the field of human services? Why does
the USA not have a welfare system similar to Sweden?
Solution
The US has the largest and most technologically powerful economy in the world, with a per
capita GDP of $49,800. In this market-oriented economy, private individuals and business firms
make most of the decisions, and the federal and state governments buy needed goods and
services predominantly in the private marketplace. US business firms enjoy greater flexibility
than their counterparts in Western Europe and Japan in decisions to expand capital plant, to lay
off surplus workers, and to develop new products. At the same time, they face higher barriers to
enter their rivals\' home markets than foreign firms face entering US markets. US firms are at or
near the forefront in technological advances, especially in computers and in medical, aerospace,
and military equipment; their advantage has narrowed since the end of World War II. The onrush
of technology largely explains the gradual development of a \"two-tier labor market\" in which
those at the bottom lack the education and the professional/technical skills of those at the top
and, more and more, fail to get comparable pay raises, health insurance coverage, and other
benefits. Since 1975, practically all the gains in household income have gone to the top 20% of
households. Since 1996, dividends and capital gains have grown faster than wages or any other
category of after-tax income. Imported oil accounts for nearly 55% of US consumption. Crude
oil prices doubled between 2001 and 2006, the year home prices peaked; higher gasoline prices
ate into consumers\' budgets and many individuals fell behind in their mortgage payments. Oil
prices climbed another 50% between 2006 and 2008, and bank foreclosures more than doubled
in the same period. Besides dampening the housing market, soaring oil prices caused a drop in
the value of the dollar and a deterioration in the US merchandise trade deficit, which peaked at
$840 billion in 2008. The sub-prime mortgage crisis, falling home prices, investment bank
failures, tight credit, and the global economic downturn pushed the United States into a recession
by mid-2008. GDP contracted until the third quarter of 2009, making this the deepest and longest
downturn since the Great Depression. To help stabilize financial markets, in October 2008 the
US Congress established a $700 billion Troubled Asset Relief Program (TARP). The
government used some of these funds to purchase equity in US banks and industrial
corporations, much of which had been returned to the government by early 2011. In January
2009 the US Congress passed and President Barack OBAMA signed a bill providing an
additional $787 billion fiscal stimulus to be used over 10 ye.
You are examining a copolymer for its potential as a material for .pdfarihantmobilepoint15
You are examining a copolymer for it\'s potential as a material for a vascular graft. you are trying
to determine whether you want a high or low degree of crystallinity in the material. what type of
structures for copolymers have a higher probability for crystallization?
Solution
Answer:
Copolymers are formed when two or more different types of monoers polymerize in a process
called copolymerization.
A block polymer is formed by the copolymerization of different copolymerized monomers. The
first component is styrene followed by methyl methacrylate which forms at the end of
polystyrene chain. Alternating polymers have regular repeating units of two different monomeric
units.
Block and alternating polymers can form long range repeated, ordered structures and thus have a
higher affinity for crystallization..
We all have good and bad thoughts from time to time and situation to situation. We are bombarded daily with spiraling thoughts(both negative and positive) creating all-consuming feel , making us difficult to manage with associated suffering. Good thoughts are like our Mob Signal (Positive thought) amidst noise(negative thought) in the atmosphere. Negative thoughts like noise outweigh positive thoughts. These thoughts often create unwanted confusion, trouble, stress and frustration in our mind as well as chaos in our physical world. Negative thoughts are also known as “distorted thinking”.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Students, digital devices and success - Andreas Schleicher - 27 May 2024..pptxEduSkills OECD
Andreas Schleicher presents at the OECD webinar ‘Digital devices in schools: detrimental distraction or secret to success?’ on 27 May 2024. The presentation was based on findings from PISA 2022 results and the webinar helped launch the PISA in Focus ‘Managing screen time: How to protect and equip students against distraction’ https://www.oecd-ilibrary.org/education/managing-screen-time_7c225af4-en and the OECD Education Policy Perspective ‘Students, digital devices and success’ can be found here - https://oe.cd/il/5yV
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
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TESDA TM1 REVIEWER FOR NATIONAL ASSESSMENT WRITTEN AND ORAL QUESTIONS WITH A...
This is a welding class assignment. Chapters 16 1. Explain the dif.pdf
1. This is a welding class assignment. Chapters 16 1. Explain the difference between the properties
of brazing and soldering 2. Explain the difference between brazing and braze weldine 3. List two
advantages of brazing over welding 4. What is capillary action? 5. List 4 methods of
mechanically cleaning a metal prior to brazing 6. Explain what type of braze will be produced
with each of the following flames. Oxidizing flame: Carburizing flame Neutral flame: 7. Which
alloys make up the following materials? Brass Bronzea
Solution
sollution-
1)Brazing joins two metal by heating and melting a filler that bond to the two pieces of metal and
join them.The filler has melting pont lower than the metal pieces. Brazing can join dissimilar
metal such as aluminium,gold,copper , silver and nickel .
Where as soldering is a llow temperature analog to brazing, soldering takes place with solder that
melt at below 840oF . Following metals can be soldered such as, gold,copper,silver, iron and
brass.When it solidifies, it joins the metal part. The bond is not as strong as in brazed joint.
2) In the braze welding process, the melting point of the filler wires is significantly lower to the
melting point of the parent material. The molten metal flows into the gap between the parts to be
joined and solidifies after wetting either across or between the surfaces via capillary action to
form the solid joint.
Brazing can join two dissimialar metal by heating and melting the filler that bond to the two
pieces of metal and join them.
3)two advantages
i) brazing does not allow the melting of base metals and produces a clean joint.
ii) brazing is effective in joining two dissimilar metals.
NOTE: For rest of the answers kindly post it again as we are not allowed to answer more than 3
in one go
