A ball is projected at an angle of 45° so as to pass a wall at a distance x1 from the point of
projection. If it falls at a distance x2 on the other side of the wall, find the height of the wall.​

Answers

Answer 1

Answer:

My Take on this

The height of the wall can be related with the Horizontal distance traveled by the equation of the trajectory

y=xtan∆ - gx²(1+tan²∆)/(2u²)

The wall is at distance x1

So thats the horizontal distance we'll use... We need to find its corresponding vertical distance "y"

So

Applying the formula

∆=45°

x=x1

g=9.8ms-²

u=velocity of projection

Substituting

y= x1tan45 - 9.8x1²[1+(tan²45)]/2u²

tan45°=1

y= x1 -4.9x²(1 +1)/u

y= x1 - 4.9x²2/

y= x1 - 9.8x²/.


Related Questions

help asap plzzzzz



still so s t u p i d it have to be 20 letters

Answers

Answer:

Shoguns at the top, daimyos in the middle, peasants at the bottom

Explanation:

Paano maiiwasan ang mga malakas na bagyo?













































kailangan ko Ng sagot pls​

Answers

Answer:

huwag mag tapon ng basura kung saan saan

Explanation:

dahil kung ikaw ay nagtatapon ng basura kung saan-saan maaring lumakas ang pagbaha dahil sa naipong basura sa daan kanya nagiging sanhi ito ng malakas na bagyo

NEED NOW
According to Hinduism, what is the goal for a person's atman? O A. To balance that person's good and bad deeds B. To fulfill that person's dharma C. To continue the cycle of samsara O D. To equal that of Brahman​

Answers

The correct answer is D. To equal that of Brahman.

Explanation

In Hinduism, the atman is a concept to refer to the essence of the individual. This in turn is related to Brahman (the essential unit of everything that exists in the universe). So, the relationship between atman and Brahman is that Brahman, being the essential unit of everything existing in the universe, encompasses the essence of being, that is, atman in a singular sense. Moreover, the atman or indivudual should work to become or to equal the Brahman. So the correct answer is D. To equal that of Brahman.

New technology often makes life better for people. Scientists, however, sometimes think that industry and making new technology have negative consequences. Which of the following would be a negative long-term consequence of growing industry and making new technology? A. decreased income for employers B. increased levels of pollution C. increased job availability D. decreased standard of living

Answers

Answer:

Over the years, technology has revolutionized our world and daily lives. Technology has created amazing tools and resources, putting useful information at our fingertips. ... With all of these revolutions, technology has also made our lives easier, faster, better, and more fun.

Explanation:

The thing is that technology gives us more than automation and the ability of providing service at a lower cost. It also gives us the opportunity to gather customer data, analyse customer data and use the data analysed to better meet customers' needs.New technologies reduce the prices of goods and services to which they are applied. They also lead to the creation of new products. Consumers benefit from these improvements, regardless of whether they live in rich or poor countries. ... These are instances of technology improving the lives of poor people.

Answer:

it's propbably A (not sure tho)

make me brainliestt :))

The
has a writing system that has yet to be deciphered.
A. Mesopotamian civilization
B. Egyptian civilization
C. Indus Valley civilization
D. Chinese civilization

Answers

Answer:

C. Indus Valley civilization

C, indus valley civilization

what extent do you agree with historians theory of the “commitment trap” .
Were Kennedy’s actions in Vietnam tied to the decisions of Truman and Eisenhower?

Answers

Explanation:

rqvacVavqwcasvqwcwca d sbevwrbsbergqbqbwrgfsbfvds

Please help I'll give brainliest but I'm super stuck!

Answers

Hmmmm I don’t know probably A or B or whatever the other PeRiOdT said

A presidential veto can be over-ridden by what fraction in both houses of Congress?

A-1/2
B-2/3
C-3/5
D-3/4

Answers

Answer:

B)

Explanation:

In order to override a presidential veto, two thirds of both houses of Congress (House & Senate) must be present. This will pass a bill which will in turn go over the president's objection.

What was the point of making trails ordeals?

Answers

Answer:

Trial by ordeal was an ancient judicial practice by which the guilt or innocence of the accused was determined by subjecting them to a painful, or at least an unpleasant, usually dangerous experience.

Please help this is a final
Will give brainly

According to Lincoln, what was the main reason for fighting the Civil
war?

To preserve the Union.

To show the strength of the United States to other nations.

slavery

To show the south his
power as president.

Answers

Answer:

to preserve the union

Explanation:

would be the best choice

lllmmmmkgiu8hhbbhbhhhhby

Answers

Answer:

Thank you so much!

Explanation:

What is the name given to a group of African Americans who were in government service under President Roosevelt?
The Black Cabinet
Black Advisors
Brain Trust
The Black Activist

Answers

Answer: The Black Cabinet

Explanation:

The Black Cabinet, or Federal Council of Negro Affairs was the informal term for a group of African Americans who served as public policy advisors to President Franklin D. Roosevelt and his wife Eleanor Roosevelt in his terms in office from 1933 to 1945

ABG
Question 6
The text above BEST describes the
А
role of the church in feudal society.
Medieval Life (WH7)
The manor consisted of a castle, a church, the village, and nearby
farmland. Every manor had a lord, who was in charge. Most people living
in the manor were peasants. The manor system allowed the peasants to
have land to farm, but the lord heavily taxed the peasants. The peasants
had to give him most of the crops. In exchange the lord protected the
peasants from thieves and soldiers passing through. This protection was
valuable in those dangerous times.
Source: http://www.medieval-life-and-times.info/ medieval-england/ord-
of-the-manor.htm
B
responsibilities of knights.
С
feudal system in the Middle Ages.
D
power of the monarchy in Medieval England.
©2021 Illuminate EducationTM, Inc.

Answers

Answer:

C fundamental system in the middle ages

How did Joseph Pulitzer differ from William Randolph Hearst?

O Pulitzer used sensationalistic journalism to sell more newspapers.
O Pulitzer's newspaper exposed government corruption, tax-dodgers and gamblers.
O Pulitzer published political cartoons to influence the Spanish-American War.
O Pulitzer's newspaper splashed investigative pieces and cartoons attacking the Spanish-American War.

Answers

2nd option, O Pulitzer's newspaper exposed government corruption, tax-dodgers and gamblers.

1. The end of World War II marked the beginning of a power struggle between ___________ and ________________.
a) the United States and the U.S.S.R.
b) Germany and England
c) France and Russia
d) the United States and France

Answers

Answer: It's a) and c)

Explanation:

Please add me to Brainliest

14. Why did they begin to build Mt. Rushmore?

Answers

Answer:

The Making of Mount Rushmore The 70th anniversary of the completion of the South Dakota monument prompts a look back at what it took to create

Explanation:

thats the answer

THIS IS WORTH 100 POINTS PLEASE HELP ME I'LL MARK YOU BRAINLIEST!
Five Pillars of Islam

THANK YOU

YOU CAN SEARCH THIS UP ON THE INTERNET

THE SUBJECT IS Islam, the Quran, and the Five Pillars

IMPORTANAT:
Select which of the Five Pillars is best associated with each of the ten following passages. Write the correct responses in the blanks following each passage. Chose from the following choices:


Faith, Pilgrimage, Alms Giving, Fasting, and Prayer



1. This occurs five times a day and always requires that you kneel towards Mecca




2. Muslims will take this trip every year to the holy city of Mecca.




3. “There is no god but Allah, Muhammad is the messenger of Allah.”




4. You must do this daily during sunrise, noontime, afternoon, sunset, and evenings.




5. This occurs every year during the holy month of Ramadan.



6. This is also referred to as the “hajj”, and refers to Muhammad’s journey to Mecca



7. This pillar describes the process of giving money to those less fortunate.




8. This pillar emphasizes that Muhammad is not God, but is nearly a prophet.



9. This Pillar refers to the process of not eating from sunrise to sunset for an entire month.




10. This comes in the form of both private giving and public contribution through a tax.

Answers

Answer:

1) prayer

2) pilgrimage

3) faith

4) prayer

5) fasting

6)pilgrimage

7) alms giving

8) Shahadah

9) salat

10) zakat

Explanation:

The shaded area on the map below was significant during which event?*

A) Election of Jackson

B) Creation of the National Bank

C) Trail of Tears

D) Nullification Crisis

Answers

the last option, nullification crisis

50 POINTS ANSWER FAST
Select the correct location on the image.
Identify the territory on the map that became part of the United States after the Adams-Onls Treaty was signed.

Answers

Answer:

Spanish Territory

Explanation:

Why was Fort Sumter important?

A. It was full of Union weapons.
B. It marked the beginning of the war.
C. It was located in a border state.
D. It marked a willingness to compromise.

Answers

Answer: B.

The Battle of Fort Sumter was the siege by Southern Confederates of a Northern Union base. It signaled the start of the American Civil War.

Which of the following best states the purpose of advertising?
O A. To get consumers to demand more goods and services.
O B. To influence the outcome of surveys and focus groups.
O C. To generate positive news stories about a good or service.
O D. To provide consumers with accurate product information.
SUBMIT
PREVIOUS
o search
Bi
c

Answers

Answer: A

Explanation:

Was the workhouse an enjoyable place for children

Answers

Answer:

It was a very enjoyable place for the children but, not the safest place their is.

DIRECTIONS: Matching Match each item with its definition

Answers

Answer:

6. E

7. B

8. A

9. D

10: C

Hope this helps!!

Cual es la isla que está en el centro de las Antillas mayores

Answers

Puerto Rico se encuentra en el extremo oriental y la isla Hispaniola se encuentra en el medio. Jamaica se encuentra al sur de Cuba, mientras que las Islas Caimán se encuentran al oeste.

Espero que esto te ayude ❤️

Which of the following in NOT a reason archaeologists think the Mayans may have left?


A.they over-farmed their land

B.they got bored and wanted to find a more interesting place to live

C.enemies invaded their territory

D.farmers rebelled under a burden of high taxes

Answers

Answer:

B. They got bored and wanted to find a more interesting place to life.

Explanation:

Civilizations don't exactly just... Leave.

When was Abraham Lincoln born?​

Answers

Answer:

February 12, 1809

Explanation:

hope this helps

Answer:

He was born February 12, 1809.

Have a good weekend!! :D

Explanation:

How did Islam affect the development of African civilization? Select all that apply.

African leaders applying the zakat tax to their people.

Islam forced West African traders to convert to Islam.

Muslims chosen as advisors by West African rulers received an education.

Africans refused to use Arabic language and rejected Muslim business methods.

Islam banned blends of Islam with traditional African beliefs.​

Answers

Answer:

-African leaders applied the zakat tax to their people.

-Muslims chosen as advisors by West African rulers received an education.

Explanation:

I took the test

The spread of Islam affected the development of the African civilization in the ways stated below,

African leaders applying the zakat tax to their people;Muslims chosen as advisors by West African rulers received an education.

Therefore, the options A and C hold true.

What is the significance of the spread of Islam?

The spread of Islam started soon after the Arab Muslims started to move to different parts of their neighboring countries. West African countries were the first settlements of the Muslims in order to lead the spread of Islam.

Soon after their settlements, the Islamic rulers became leaders in Africa. These rulers and other Islamic people were obliged under reception of education of Islamic beliefs.

Therefore, the options A and C hold true and state regarding the significance of the spread of Islam.

Learn more about the spread of Islam here:

https://brainly.com/question/12387954

#SPJ2


W.E.B. Du Bois said that the goal of black education was that of "developing the Best of this race that they may guide the Mass away from the
contamination and death of the Worst..." To whom was he referring when he said "Best of this race"?

Select the best answer from the choices provided.
A
African American men
B
the Talented Tenth
C
African Americans of mixed ancestry
D
the wealthiest businessmen


Answers

Answer:

B.

Explanation:

The Talented Tenth is an essay written by WEB Du Bois. The essay was written when Theodore Roosevelt was President of the United States and the nation was witnessing the rise of industrialization.

WEB Du Bois considered it to be the best time for African Americans to grow.

He asserts that there is one in the ten African Americans who have developed the quality of leadership through education, writing books, and being an active participant in social change.

The term 'best of this race' is referred to this Talented Tenth of African American who can lead the mass away from lack of education.

Therefore, option B is correct.

Where was the Incan Empire in relation to the Aztec Empire? Did they rule during the same time period?

Answers

Answer:

Explanation:

(The Aztec dominated central and southern Mexico through force and a tribute system. The Inca developed a widespread empire in the Andes Mountains linked by a network of roads./

Where was the Inca empire located?

Chile

Inca, also spelled Inka, South American Indians who, at the time of the Spanish conquest in 1532, ruled an empire that extended along the Pacific coast and Andean highlands from the northern border of modern Ecuador to the Maule River in central Chile.

Where was the Aztec empire located?

Mexico

Aztec, self name Culhua-Mexica, Nahuatl-speaking people who in the 15th and early 16th centuries ruled a large empire in what is now central and southern Mexico. The Aztecs are so called from Aztlán (“White Land”), an allusion to their origins, probably in northern Mexico.

(Did the Aztecs and Incas exist at the same time?

The Incas were around at the same time as the Aztecs, but we know they never spoke to each other. The Incas had already mastered bronze by the time the Spanish came, while the Aztecs were just then figuring out that it could be useful.)

Identify two desires black South Africans have.

Answers

Answer:

1 . Every  black African Desier to travel .

2. Every African Desier a better education.

Explanation:

1 . Every African Desier to travel .

Number one reason why all african including me desier to  traveling is that, the chance for one to become successeful why here is very much slime. so in other to secure a good life for you and your family , you have to fine a way to leave Africa.

And secondly we African see traveling as achivment.

2. Every black African Desier a better education.

In Africa, for one to have a better education you have to come from a very rich family. So you will more of us who are school drope out and desirinrg to go back to school.

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