What are the strengths and weaknesses of each hypothesis/arguments for extinction of Pleistocene Megafauna in North America?
1. Climate change with warm weather.
2. Overkill by humans(by hunting).

Answers

Answer 1

Answer:

The extinction of Pleistocene Megafauna in North America is a complex issue that has been the subject of much debate and research. Two of the main hypotheses that have been proposed to explain this extinction are climate change and overkill by humans. Here are some of the strengths and weaknesses of each hypothesis:

Climate Change Hypothesis:

Strengths:

- There is strong evidence that the climate was warming at the end of the Pleistocene epoch, which could have had a significant impact on the environment and the survival of megafauna.

- Climate change could have caused changes in vegetation patterns, which could have affected the availability of food for megafauna.

- Climate change could have also caused changes in the distribution of water resources, which could have affected the survival of megafauna that relied on water sources.

Weaknesses:

- The timing of the extinction of megafauna does not perfectly align with the timing of climate change. Some species went extinct before the most significant warming occurred.

- There were previous periods of climate change during the Pleistocene epoch that megafauna survived, which suggests that climate change alone may not have been the sole cause of extinction.

Overkill Hypothesis:

Strengths:

- There is evidence that humans were present in North America at the time of the megafauna extinction and that they were hunting large animals.

- There is also evidence that humans were capable of causing extinctions on other continents, such as Australia.

Weaknesses:

- There is some debate about the extent to which humans were responsible for the extinction of megafauna. Some researchers argue that the timing of the extinction does not match up with the arrival of humans, and that other factors may have been at play.

- There is also some evidence that suggests that humans may have coexisted with megafauna for thousands of years before the extinction, which suggests that overhunting may not have been the sole cause.

Overall, both the climate change and overkill hypotheses have their strengths and weaknesses, and it is likely that a combination of factors contributed to the extinction of Pleistocene Megafauna in North America. Further research and evidence may be needed to fully understand the complex causes of this extinction.


Related Questions

How many votes did the senate need to override the presidential veto , and how many senators and representatives votes to override the veto

Answers

Answer:

A veto can only be overridden by a two-thirds vote in both the Senate and the House.

Explanation:

What statement best describes the impact of virginias 1662 law that stated children born to an enslaved mother were also enslaved

Answers

Answer:

The statement that best describes the impact of Virginia's 1662 law, which stated that children born to an enslaved mother were also enslaved, is that it institutionalized and perpetuated slavery across generations.

The law, known as partus sequitur ventrem, solidified the concept of hereditary enslavement based on the condition of the mother. It meant that children born to enslaved women would automatically inherit the status of their mother and be enslaved for life. This law had significant implications for the institution of slavery in Virginia and, later, in other colonies.

wich scenario describe an example of continuity over time?​

Answers

The scenario that would best describe an example of continuity over time would be ‘china is ruled by a series of imperial dynasties

Fill in the blank.
The one Issue that divided the country more than any other was
NEXT QUESTION
DEAD NEYT SECTION

Answers

Answer:The one issue that divided the country more than any other was

✓ slavery

Explanation:

Drag each tile to the correct box.
Match each organization with one of its goals.
American Indian
Movement
United Farm Workers
Ad Hoc Committee of
Concerned Steelworkers
Black Panthers
self-determination
arrowBoth
greater representation
in union leadership
arrowBoth
fair contracts
with employers
arrowBoth
development of
separate communities
arrowBoth

Answers

American Indian Movement - self-determination, greater representation in union leadership, fair contracts with employers, development of separate communities. United Farm Workers - fair contracts with employers, greater representation in union leadership. Ad Hoc Committee of Concerned Steelworkers - fair contracts with employers. Black Panthers - self-determination, development of separate communities.

American Indian Movement:

- Goal: self-determination

- Goal: greater representation in union leadership

- Goal: fair contracts with employers

- Goal: development of separate communities

United Farm Workers:

- Goal: fair contracts with employers

- Goal: greater representation in union leadership

Ad Hoc Committee of Concerned Steelworkers:

- Goal: fair contracts with employers

Black Panthers:

- Goal: self-determination

- Goal: development of separate communities

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The American Indian Movement sought self-determination, the United Farm Workers aimed for fair contracts with employers, the Ad Hoc Committee of Concerned Steelworkers aimed for greater representation in union leadership, and the Black Panthers aimed for the development of separate communities.

The American Indian Movement (AIM) sought self-determination for Indigenous peoples. They aimed to protect and restore tribal sovereignty, cultural traditions, and land rights. AIM advocated for the rights of Native Americans and fought against discrimination and mistreatment.

The United Farm Workers (UFW) focused on securing fair contracts with employers for agricultural workers. Led by figures such as Cesar Chavez, the UFW fought for better wages, improved working conditions, and the right to organize unions. They sought to improve the lives and rights of farmworkers, particularly those of Mexican and Filipino descent.

The Ad Hoc Committee of Concerned Steelworkers aimed to achieve greater representation in union leadership. This committee, formed within the steelworkers' union, advocated for increased participation of rank-and-file workers in decision-making processes, ensuring their voices were heard in union affairs.

The Black Panthers sought the development of separate communities as a means of addressing systemic racism and oppression faced by African Americans. They worked towards establishing community programs, providing education, healthcare, and social services to African American communities. The Black Panthers also advocated for self-defense and challenged police brutality.

In summary, the American Indian Movement aimed for self-determination, the United Farm Workers focused on fair contracts with employers, the Ad Hoc Committee of Concerned Steelworkers aimed for greater representation in union leadership, and the Black Panthers aimed for the development of separate communities to address social and racial injustices.

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What were Ada lovelace's legacy and impact for future generations of women?

Answers

Answer:

. Her pioneering work paved the way for the modern digital age and motivates future generations to pursue STEM careers.

The enactment of the Magnuson Act in 1976:
a - focused more on sustainable yield approaches to U.S. fisheries.
b- opened up U.S. fisheries to foreign commercial interests.
c - allowed fishery managers to use economic and social factors to modify estimates of sustainable fish catches.
d - imposed restrictions on the amount of fish an individual could take.

Answers

The Magnuson Act, also known as the Magnuson-Stevens Act, was signed into law in 1976 by President Gerald Ford. The act covers all federal fisheries and their habitats in the United States' exclusive economic zone, which extends up to 200 miles from the coastline.

The Magnuson Act, also known as the Magnuson-Stevens Act, was signed into law in 1976 by President Gerald Ford. The act covers all federal fisheries and their habitats in the United States' exclusive economic zone, which extends up to 200 miles from the coastline.The Magnuson Act was primarily aimed at conserving and managing the nation's fishery resources and habitats in a sustainable manner. Among the provisions of the Magnuson Act are the following:The Magnuson Act requires the use of sustainable yield strategies for U.S. fisheries. In other words, fisheries are managed to ensure that they produce as much fish as possible while still allowing the population to regenerate and recover from overfishing.The Magnuson Act imposed restrictions on the amount of fish an individual could take. Fishermen were required to register for permits, and their catch was subject to quotas and size limits. The aim was to reduce overfishing and protect fish populations.Fishery managers could use economic and social factors to modify sustainable fish catch estimates. This allowed them to consider the economic and social benefits of fishing while still protecting fish stocks. The act also aimed to open up U.S. fisheries to foreign commercial interests. As a result, foreign fleets could only fish in U.S. waters if they had a valid permit. The permit was only granted if they agreed to comply with U.S. conservation and management rules.The Magnuson Act's enactment in 1976 was a major turning point in the United States' efforts to conserve and manage its fisheries. It aimed to balance the competing demands of commercial, recreational, and conservation interests while ensuring the long-term sustainability of fish stocks. The Magnuson Act's provisions have been updated and modified over the years, and the Act remains a cornerstone of U.S. fisheries management today. The response has more than 100 words and includes the terms "more than 100 words", "enactment", and "Act."

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Part 2

What is the contour interval?
In what direction is Maklaks Spring flowing (downstream)? How can you tell?
Which area is most steep of the areas enclosed in red, blue, green, or orange circles? How can you tell?
If you were standing on the east side of the feature that has its highest point of elevation at 6,168 (shown in the yellow square box), what graphic would most represent the shape or profile of the geographical feature?


Provide an approximate elevation for points W, X, Y, and Z (Z is pointing right to the line).

Answers

1. The contour interval is the vertical distance between contour lines.

2. The direction of Maklaks Spring's flow cannot be determined without additional information.

3. The steepest area cannot be identified without more specific details.

4. The shape or profile graphic depends on the specific feature mentioned.

5. Elevation for points W, X, Y, and Z cannot be provided without more information.

1. The contour interval is the vertical distance between contour lines on a topographic map.

It represents the change in elevation between adjacent lines.

2. To determine the direction of Maklaks Spring's flow (downstream), you would need additional information, such as the contour lines indicating the elevation and the shape of the surrounding terrain.

Without that information, it is not possible to determine the direction of the flow.

3. Without the visual representation of the map or the specific details of the areas enclosed in the red, blue, green, or orange circles, it is not possible to identify which area is the most steep.

The steepness of an area can be determined by analyzing the contour lines, with closely spaced lines indicating steep slopes.

4. Without a visual representation or description of the geographical feature, it is not possible to determine the most appropriate graphic to represent its shape or profile accurately.

5. Without the visual representation of the map or specific information about the points W, X, Y, and Z, it is not possible to provide approximate elevations for these points.

Elevation can be determined by examining the contour lines and their values on a topographic map.

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Which are rights held by Washington’s Indigenous nations? Check all that apply.

to make tribal laws
to ignore federal laws
to form armies or navies
to run gambling casinos
to form a government
to write new state laws

Answers

The rights held by Washington's Indigenous nations include:

- To make tribal laws

- To form a government

The rights held by Washington's Indigenous nations include:

1. To make tribal laws:

Indigenous nations have the right to establish and enforce their own laws within their tribal territories. These laws govern various aspects of tribal governance, land use, and cultural practices.

2. To form a government:

Indigenous nations have the right to establish their own governmental systems, which include tribal councils, chiefs, or other forms of governance that reflect their unique cultural and political structures.

3. To write new state laws:

While Indigenous nations do not have the authority to write state laws, they may engage in government-to-government relationships with state governments to negotiate agreements, compacts, or policies that impact their tribal communities.

It is important to note that the other options listed, such as ignoring federal laws, forming armies or navies, running gambling casinos, are not universally applicable rights held by Indigenous nations in Washington or elsewhere.

The rights and authorities of Indigenous nations are defined by tribal sovereignty, federal Indian law, and treaties or agreements negotiated with the U.S. government.

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According to the Declaration of Independence, which situation justifies open rebellion against a government?

Answers

According to the Declaration of Independence, open rebellion against a government is justified when it consistently violates the natural and unalienable rights of its citizens.

According to the Declaration of Independence, open rebellion against a government is justified when that government systematically violates the natural and unalienable rights of its citizens. The document states that when a government consistently denies people their rights to life, liberty, and the pursuit of happiness, it is the right and duty of the people to alter or abolish that government and establish a new one that upholds these fundamental rights. The Declaration of Independence emphasizes that governments derive their power from the consent of the governed, and when a government becomes destructive and oppressive, the people have the right to rebel and create a new system that protects their inherent rights and promotes their well-being.

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A group of people responsible for running a government who are not elected officials are collectively known as

Answers

Answer: Bureaucracy

Explanation:

a vassal under the feudal system owed his lord

Answers

Answer:

Under the feudal contract, the lord had the duty to provide the fief for his vassal, to protect him, and to do him justice in his court. In return, the lord had the right to demand the services attached to the fief (military, judicial, administrative) and a right to various “incomes” known as feudal incidents.

Explanation:

All of the groups worked on the transcontinental railroad except:

Chinese immigrants

Indigenous groups

Irish immigrants

Civil War veterans

Answers

Answer:

The American Indians did NOT work on the railroad

Explanation:

Which trade route brought luxury goods from china to the rest of the world?
A. D
B. B
C. C
D. A

Answers

How do many trees survive the winter?
A. by storing food
B. by going dormant
C. by staying underground
D. by migrating

How did the english east India Company establish power in india

Answers

Answer: Robert Clive, who led the company's 3,000-person army, became Bengal's governor and began collecting taxes and customs, which were then used to purchase Indian goods and export them to England. The company then built on its victory and drove the French and Dutch out of the Indian subcontinent.

Explanation: YIPPPEEE

What did the southern colonies depend on to support Thier economy

Answers

Answer:

The southern colonies in America, particularly during the colonial period, depended heavily on agriculture, specifically on cash crops such as tobacco, rice, and indigo. The favorable climate and fertile soil of the southern region allowed for the large-scale cultivation of these crops. The economy of the southern colonies was primarily based on the production and exportation of these agricultural goods, which generated significant wealth for the plantation owners and slaveholders in the region. Slavery played a crucial role in supporting the economy of the southern colonies by providing the labor necessary for cultivating and harvesting the cash crops.

What the southern colonies depended on to support their economies often was reflected by geography; however, the southern colonies collectively relied on agriculture and manual labor.

Because the south was not industrialized at the time, much crop production came from physical labor (mainly through slavery). As society progressed in the south, however, more industries were constructed and more people developed a sense of manufacturing to produce more goods.

How would a secondary source be beneficial to a historian studying a
particular event?

Answers

A secondary source provides analysis, interpretation, and contextualization of primary sources, aiding historians in gaining a deeper understanding of a particular event.

A secondary source would be beneficial to a historian studying a particular event for several reasons. Firstly, a secondary source provides an analysis and interpretation of primary sources, offering insights, perspectives, and contextual information that may not be readily apparent from the primary sources alone. This helps historians gain a deeper understanding of the event by considering multiple viewpoints and evaluating the credibility and reliability of the information. Secondly, a secondary source can provide a broader historical context, placing the event within a larger framework of historical events, developments, and trends. This contextualization allows historians to examine the event's causes, consequences, and significance within a broader historical narrative. Additionally, secondary sources can offer a synthesis of research, drawing on multiple primary sources and other secondary sources, enabling historians to access a comprehensive overview and analysis of the event.

Overall, secondary sources are valuable tools for historians as they provide critical analysis, contextualization, and synthesized information, enhancing the historian's understanding and interpretation of a particular event.

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Which historical interpretation is supported by this source?
OA. When this was written, many Europeans were familiar with
Chinese culture.
OB. When this was written, China was a more developed country than
Japan.
OC. When this was written, foreigners were not allowed in any part of
China.
OD. When this was written, Shanghai's economy relied largely on
manual labor.
dhy.

Answers

Answer: Option D

Explanation: When this was written, Shanghai's economy relied largely on manual labor

Olaudah Equiano wrote about personal experience to argue for

Answers

Answer: Through his experiences and writing, Equiano paints a vivid picture of the atrocities and cruelties of European slavery. Ultimately through his narrative, Equiano intends to persuade his audience, the British government, to abolish the Atlantic slave trade as well as alert them of the harsh treatment of slaves.

Explanation: YIPPPEE

Question 12(Multiple Choice Worth 1 points)
(HC)The quote below was written by U.S. Senator Marco Rubio:

But here's what I would tell people of my generation. I turn 40 this year. There isn't going to be a Social Security. There isn't going to be a Medicare when you retire. Forget about what your benefit is going to look like. There isn't going to be one if we don't make some reforms to save that program now.

What measures did President Clinton take to combat the scenario described in the quote above?

He proposed measures that would reduce government spending in these healthcare programs in order to balance the budget.
He increased the government's power to monitor the expenditures by these healthcare programs.
He gave the states more power to control the way in which funds from these healthcare programs were distributed.
He suspended these healthcare programs for a specific period of time to build up the funds necessary to support them.

Answers

President Clinton take measure to combat the scenario is: He proposed measures that would reduce government spending in these healthcare programs in order to balance the budget.

President Clinton, during his time in office, took measures to combat the scenario described in the quote by Senator Marco Rubio. In an effort to address the long-term viability of Social Security and Medicare, President Clinton proposed measures aimed at reducing government spending in these healthcare programs to achieve a balanced budget.During his presidency, Clinton worked to reform and strengthen the country's social safety net programs. He recognized the need for fiscal responsibility and sustainability in programs like Social Security and Medicare to ensure their future availability for future generations. Clinton's proposals aimed to make the programs more financially stable, reduce government spending, and ensure their long-term viability.It is important to note that the specific details and extent of the proposed measures may vary, as policies and proposals can undergo changes during the legislative process.The overarching objective of President Clinton's actions was to address the financial challenges faced by these healthcare programs and work towards their sustainability.

The correct option is: He proposed measures that would reduce government spending in these healthcare programs in order to balance the budget.

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Which of the following is not a function of county government?
O planning and zoning
O park maintenance
O tax collection
O maintaining military

Answers

Answer:

maintaining military

Explanation:

the federal gov does that

Question 3 of 30 Which statement best summarizes American business in the 1950s? OA. American companies found new markets both at home and overseas. B. Manufacturers struggled to return to civilian manufacturing, and many went bankrupt. O C. American companies faced increased competition from overseas companies that were willing to undersell them. OD. The construction industry benefited from increased home ownership, but other industries declined. SUBMIT​

Answers

Option A is the correct option. Statement best summarizes American business in the 1950s is A. American companies found new markets both at home and overseas.

During the 1950s, American business experienced a period of economic growth and expansion. The end of World War II and the subsequent post-war boom led to increased consumer demand and prosperity. American companies capitalized on this favorable environment by finding new markets both domestically and internationally.

At home, the demand for consumer goods surged as the population experienced a rise in income and standard of living. American companies catered to this demand by producing a wide range of products, including appliances, automobiles, and other consumer goods.

Moreover, American companies also expanded their operations overseas, taking advantage of post-war rebuilding efforts in Europe and other regions. The Marshall Plan provided aid to European countries, leading to increased trade and investment opportunities for American businesses.

Overall, the 1950s marked a period of economic prosperity and growth for American business. Companies found new markets both at home and overseas, driving industrial production, consumer spending, and economic expansion.

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Which statement best summarizes American business in the 1950s?

A. American companies found new markets both at home and overseas.   B. Manufacturers struggled to return to civilian manufacturing, and many went bankrupt.

C. American companies faced increased competition from overseas companies that were willing to undersell them.

D. The construction industry benefited from increased home ownership, but other industries declined.

Describe what you see & the striggles that children faced during this time

Answers

Anecdotally, we know that many children struggled with the demands of home learning and with loneliness after weeks of social isolation. Vulnerable children faced real hardship as a result of Covid-19, in particular children in care and custody, those with disabilities or mental illness, those at risk of abuse or without a permanent home.

The most direct confrontation came as a result of

Answers

Answer: false

Explanation: i promise

Which item was most responsible for leading to the end of the Cold War?

Answers

Answer: The weakening of communism and world revolution and the change in USSR foreign policy was responsible for the end of the Cold War.

Explanation: communism never worked never will never has

YIPPPEE

In 30 words or fewer, explain what changes the conclusion of the Thirty Years' War might have brought about in Europe.

Answers

The conclusion of the Thirty Years' War brought potential changes to Europe, including shifts in power dynamics, religious tolerance, and the establishment of a new framework for interstate relations.

___ vastly expanded Persian territories, establishing the ___, which was the largest the world had ever seen.

Answers

Cyrus The Great vastly expanded Persian territories, establishing the Persian Empire, which was the largest the world had ever seen.

Who was Cyrus The Great?
Cyrus The Great was the founder of the Achaemenid Empire - the first Persian empire. During his rule, the empire expanded and conquered most of Western Asia, along with a mass majority of Central Asia.
Cyrus The Great is known for his mercy towards his enemies, and respect towards non-Persian people. After conquering countries, Cyrus would allow the people to maintain their religious beliefs and their way of life, as long as they paid their taxes to the Persian Empire. He is also held responsible for the fall of Babylon!

Hope this helps you! :)

.What problems were farmers facing in the late 1800s? Check all of the boxes that apply.

Answers

Answer: There were tremendous economic difficulties associated with Western farm life. First and foremost was overproduction. Because the amount of land under cultivation increased dramatically and new farming techniques produced greater and greater yields, the food market became so flooded with goods that prices fell sharply.

At the end of the 19th century, about a third of Americans worked in agriculture, compared to only about four percent today. After the Civil War, drought, plagues of grasshoppers, boll weevils, rising costs, falling prices, and high interest rates made it increasingly difficult to make a living as a farmer.

Explanation: ???Check all of the boxes that apply.???

What are 2 potential consequences/effects if the erosion on LA's coast continues?

Answers

Answer:

It is further anticipated that by 2050, without appropriate response, coastal Louisiana will lose an additional 630,000 acres of coastal marshes, swamps, and islands. This coastal trend indicates loss of land and increased vulnerability to storms and other natural disasters.

Explanation:

How do these seminal documents reflect American democratic values?

Answers

Seminal documents in American history, such as the Declaration of Independence, the Constitution of the United States, and the Bill of Rights, reflect and embody American democratic values in several ways.

The Declaration of Independence, written in 1776, articulates the fundamental principles of democracy, including the belief in natural rights, equality, and consent of the governed. It proclaims that all individuals are created equal, endowed with certain unalienable rights, such as life, liberty, and the pursuit of happiness. These ideas formed the basis for democratic governance and the recognition of individual rights.The Constitution of the United States, ratified in 1788, establishes the framework for the American government and reflects democratic values through its system of checks and balances, separation of powers, and the rule of law. It enshrines the principles of representative democracy, empowering the people to elect their leaders and participate in the political process.The Bill of Rights, comprising the first ten amendments to the Constitution, guarantees essential individual liberties and rights, including freedom of speech, religion, assembly, and due process. These protections reflect the democratic values of freedom, pluralism, and the safeguarding of individual liberties against government intrusion.These seminal documents demonstrate the core democratic values that have shaped the American nation, emphasizing principles such as equality, individual rights, popular sovereignty, and limited government. They have provided a foundation for democratic governance and have influenced subsequent generations to strive towards a more inclusive and participatory society.

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Other Questions
help?????????????????????????????// Consider the distribution of a discrete variable X whose cumulative distribution function is given by F(x)= 0,x Find the distance from the point (0,5,3) to the plane 5x+y3z=7. FILL THE BLANK.Which of the following is NOT a research finding about the effects of physical attractiveness? attractive people have more positive qualities projected on to them infants can distinguish between attractive and unattractive faces (it's mostly hard-wired) attractive people are found guilty less often in court O attractive people are often paid about the same as their lesser attractive colleagues O attractive people are more likely to receive help 1 pts Question 40 Extra Credit (will add it to the extra credit category in Canvas separately) Overall, Psychology as a discipline can best be described as....... No answer text provided. O about as valid and reliable as astrology. fun to talk about after getting high on marijuana or tripping on magic mushrooms with friends a discipline that is evolving like many other academic disciplines through research and application primarily for people who have serious issues and need help 1 p Whey there is a Need for Public-key cipher?Whey we need Combined Encryption Technique? What is the CCH (cultural contexts of health) approach in terms of achieving betterhealth outcomes across regional contexts? Does itrelate to the culture of healthapproach? How important is a CCH approach to improve the healthcare delivery andpublic health? What is the price of a 3 -year bond with a 8% coupon rate and face value of $100 ? The bond is trading at a yield of 8%. Coupons are paid semi-annually. Assume semi-annual compounding. Round your answer to the nearest cent ( 2 decimal places). or each separate case below, follow the three-step process for adjusting the prepaid asset account at December 31. tep 1: Determine what the current account balance equals. tep 2: Determine what the current account balance should equal. tep 3: Record the December 31 adjusting entry to get from step 1 to step 2 . Assume no other adjusting entries are made during the year. a. Prepaid Insurance. The Prepaid Insurance account has a $6,600 debit balance to start the year. A review of insurance policies shows that $1,850 of unexpired insurance remains at year-end. When an air mass passes across a mountain range, many things happen to it. Describe each aspect of a mountain crossing by a moist air mass. What is the pattern of precipitation that results? A diagram may be helpful FILL THE BLANK.According to Carol Gilligan, a concern for others is ________.a different but no less valid basis of moral judgment than a focus on impersonal rightsa less valid basis for moral judgment than a focus on justicenot measurable through the examination of responses to Kohlberg's moral dilemmasa more valid basis for moral judgment than a focus on impersonal rights Please do not answer whit copy pasted answer from similar question,I will report those who does this ! 2. Let p be a prime number of length k bits. Let H(x) = x (mod p) be a hash function which maps any message to a k-bit hash value.(c) Is this function collision resistant? Why? The linear BVP describing the steady state concentration profile C(x) in the following reaction-diffusion problem in the domain 0x 1, can be stated as dC_C=0 - dx with Boundary Conditions: C(0) = 1 dC (1) = 0 dx The analytical solution: C(x) = e(2-x) + ex (1+e) Solve the BVP using finite difference methode and plot together with analytical solution Note: Second Derivative= C-1-2 C+Cj+1 (A x) First Derivative: - Cj+1-C-1 (2 x) A 3-phase, 4 wire system has the following unbalanced loads. ZAN= 535, ZBN= 8-70 and ZCN= 15.32-63.5 and having a 254V line to neutral. Assuming negative phase sequence, find the following.a.) Find the three line currentsb.) Find the current in the neutral wire.c.) Find the total power of the system. Q4.(a) The water utility requested a supply from the electric utility to one of their newly built pump houses. The pumps require a 400V three phase and 230V single phase supply. The load detail submitted indicates a total load demand of 180 kVA. As a distribution engineer employed with the electric utility, you are asked to consult with the customer before the supply is connected and energized. i) With the aid of a suitable, labelled circuit diagram, explain how the different voltage levels are obtained from the 12kV distribution lines. (7 marks) ii) State the typical current limit for this application, calculate the corresponding kVA limit for the utility supply mentioned in part i) and inform the customer of the repercussions if this limit is exceeded. (7 marks) iii) What option would the utility provide the customer for metering based on the demand given in the load detail? (3 marks) iv) What metering considerations must be made if this load demand increases by 100% in the future? (2 marks) (b) You built an electric device for a design project that works on the 115V supply from a general-purpose domestic outlet. To be safe, you opt to use a fuse to protect the electrical components of the device from overvoltage in the supply or accidental faults in the circuitry. With the aid of a suitable diagram, show how the fuse would be connected to the terminals of your device and describe its construction and operation. (6 marks) In Preliminary Hazard Analysis (PHA), organisation is responsible to design a proper job hazard analysis to all machines or chemical that can be considered as 3D (Dirty, Dangerous, Difficult). Please design a SOP using FIVE (5) steps of "hazard control method" for an old photocopy machine. What is the factored form of this expression? x2 12x + 36 A. (x + 6)2 B. (x 6)2 C. (x 6)(x + 6) D. (x 12)(x 3) Difference Between Nutrients and Foods Place the nutrition term into the appropriate sentence. The science of involves the relationship between food and health. Chemical substances that are found in foods are called The term refers to the energy derived from the foods we eat. A nutrient is considered to be if. when left out of the diet. it leads to a decline in biological function. The _____ approach to leadership states that the best leadership style depends on situational variables.a.contentb.processc.classicald.contingency Derive the following design equations starting from the general mole balance equation a) CSTR b) Batch c) PBR [7] [7] [6] 12 Marks Question 2 a) Describe the three ways in which a chemical species can lose its identity and give an example for each. [6] b) With the aid of a sketch illustrate the rate of reaction in relation to reagents and products. You have just estimated the historical beta of a risky security and found that this beta is equal to 0. Indicate which of the following statements is most likely correct or incorrect.The fundamental beta will be higher than the historical beta[ Choose ] Incorrect CorrectThe fundamental beta will be lower than the historical beta[ Choose ] Incorrect CorrectThe historical beta of a risky security cannot be equal to zero[ Choose ] Incorrect CorrectThe volatility of this stock can be greater than zero even if its beta is equal to zero[ Choose ] Incorrect Correct