An arrow is shot from a height of 1.5 m toward a cliff of height H. It is shot with a velocity of 30 m/s at an angle of 60° above the horizontal. It lands on the top edge of the cliff 4.0 s later. (a) What is the height of the cliff? (b) What is the maximum height reached by the arrow along its trajectory? (c) What is the arrow's impact speed just before hitting the cliff?
Known Variables:
Δy = 1.5 m
v0 = 30m/s at 60° above the horizontal.
t = 4.0 s
a. vfy = v0y + at
0 = 30sin(60) + (-9.8)t
-25.98 = -9.8t
t = 2.65.
4-2.65 = 1.35s.
Δy = v0yt + at^2/2
Δy = 25.98(2.65) + (-9.8)(2.65)^2/2
Δy = 34.44 m
1.5 + 34.44 = 35.94 m.
Δy = v0t + at^2/2
Δy = (-9.8)(1.35)^2/2
Δy = -8.93.
35.94 - 8.93 = 27.01 m.
b. vfy = v0y + at
0 = 30sin(60) + (-9.8)t
-25.98 = -9.8t
t = 2.65.
Δy = v0yt + at^2/2
Δy = 25.98(2.65) + (-9.8)(2.65)^2/2
Δy = 34.44 m
1.5 + 34.44 = 35.94 m.
vfy = v0y + at
vfy = (-9.8)(1.35)
vfy = -13.23 m/s.
I might have gone wrong somewhere so please check my answer! Cheers!
The Columbian exchange resulted in
o benefits to populations native to the Americas through
the introduction of a wide variety of new subsistence
crops and livestock, with few negative consequences.
mostly negative consequences for populations in
Europe. Arca Asia and the Americas due to
widespread communication of disease
the decimation of European populations due to the
transfer of contaminated foodsturts and the spread of
unknown diseases from the Americas
population booms in parts Europe and Asia due to
the introduction of new staple subsistence crocs Tom
the Americas
Answer:
the correct one is population booms in parts Europe and Asia
,equationsyyrijrrhdufurruhe
Answer:
Is this a question?
Explanation:
Please select the word from the list that best fits the definition
Reading the summary first
True or False"Please select the word from the list that best fits the definition
Reading the summary first
?Please select the word from the list that best fits the definition
Reading the summary first
Please select the word from the list that best fits the definition
Reading the summary first
Answer:
Read
Explanation:
The worship of many gods has been a practice that has been seen in many religions and it is known as Polytheism.
What are the Facts about Polytheism?Polytheism has been refers to the worship of more than one god or deity. These gods are often described as having power over certain aspects of the life and so are prayed to for the guidance in those areas.
The largest polytheistic religion in the world is Hinduism which is said to have millions of gods.For this case we have that "te" is a personal pronoun atono, that is, those that function as direct or indirect complement.
Polytheism is the worship of many gods Monotheism is the worship of one god. Polytheistic religions included the religions of the Greeks and the Romans (with all of their varieties of different gods).
Therefore,Monotheistic religions include Judaism, Christianity, and Islam.
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The complete question will be:
Please select the word from the list that best fits the definition
The worship of many gods Please select the word from the list that best fits the definition
Pleaseeee someone help!!! ASAP human geography! 4 questions! Written thoroughly 100 points!!! Nobody is helping!! Please help me!! I really need it!!
Answer:
I cannot answer if no questions
Explanation:
where is the question??
its a good anser
right
Answer:
What is an astronaut’s favorite key on a keyboard?
Explanation:
The space bar.
Which of these is a drawback of vector graphics?
not photorealistic
loses quality when resized
cannot be animated
1 large file size
Answer:
not photorealistic
Explanation:
edge 2022
The drawback of vector graphics is not photorealistic. Thus, option A is correct.
What is the vector graphics?A vector graphics are graphics that are made up of paths, that is they are known by a start and end point, in line with other points, curves, etc. as seen along the way. Vector graphics are photorealistic and as such a feature of a vector graphic is photorealism. Note that in vector graphics, A path can be made of a line, a square, a triangle, etc.
An in design file may be defined as a type of desktop publishing software application that is significantly utilized for creating flyers, brochures, magazines, newspapers, books, and other publications.
The types of files that in the design can remarkably use for operating its well-known function of constructing literary works like magazines, newspapers, books, etc. are graphics, text files, editing files, animation files, etc.
Therefore, The drawback of vector graphics is not photorealistic. Thus, option A is correct.
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Hey, I'm in drivers ed in KS my question is and i know its completely off-subject
You are changing the direction you must-
A.Brake as soon as possible
B.Turn on the emergency flashers
C. Use all space around you
D. use an Escape path into an open zone
Thanks for the help
What would be the answer, I need this!
The population pyramid is typical of countries
A. With a shrinking population
B. With a stable population size
C. In Europe & North America
D. With a large migrant population
E. In the economical less-developed regions
Help pls
According to global data from 2018, Niger had a natural rate of increase equaling 3.8% and Bulgaria equaled −2.8%. What process was used to calculate this statistic?
A) Averaging the fertility rate for the past 100 years
B) Multiplying the crude birth rate by 10
C) Subtracting the crude death rate from the crude birth rate
D) Dividing the crude birth rate by the sex ratio
E) Adding the death rate to the fertility rate and dividing by two
Note that the possible process that was used to compute the above statistic is "Subtracting the crude death rate from the crude birth rate" (Option C)
What is the rationale for the above response?Note that the natural rate of increase is calculated by subtracting the crude death rate (number of deaths per 1000 population) from the crude birth rate (number of births per 1000 population). This gives the net change in population due to natural factors.
The statistical examination of human populations is known as demography. Demographers evaluate population number, mobility, and structure using census data, surveys, and statistical models.
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What engine component is shown in the above Figure?
A. Main bearing
B. End bearing
C. Thrust bearing
D. Camshaft bearing
Answer:
D (I need to make it 20 characters)
Which of the following is not an example of a cognitive map?
Describe one new interpretation of Christian doctrine and practice that emerged in the period from 1517-1530.
Answer:
n 31 October 1517, he published his '95 Theses', attacking papal abuses and the sale of indulgences. Luther had come to believe that Christians are saved through faith and not through their own efforts. This turned him against many of the major teachings of the Catholic Church.
One way that companies misrepresent themselves about scholarship opportunities in an effort to gain the trust of students is to:
A: Offer scholarships that do not exist
B: Offer additional financing
C:Promise 100 percent success rates
D:Claim they represent the government
Answer:
ima go with A
Explanation:
Answer:ITS D JUST FINISHED
Explanation:
Which reason best explains Thomas Jefferson's purpose for repeating the phrase "He has" in the list of grievances in the Declaration of Independence?
1. To provide a parallel structure to the argument
2. To increase the reader's interest
3. To emphasize the wrongdoings by the king
4. To justify the colonists' struggle for freedom
Answer:
"He governs best who governs least. "Thomas Jefferson
Explanation:
add me on f0rtnite
birdie4000
Answer:
who tryna run some duo? like um rnn
What scene in the show friends represents role playing
Answer:
Be the same roles and responsibilities
Why is figuring out the unit price of something useful when shopping?
Answer:
It helps you check to see if the price is correct, as well as determine the best deal.
Why is it important to understand the limitations of the data?
On the new iOS version, can you save photos from ‘review confirmed photos’?
Answer:
Only the iPhoto software is replaced when updating to the new version; your library of photos is not touched.
Explanation:
Do both boiling sugar to make caramel and cellular respiration conserve mass?
Answer:
Explanation: The law of conservation of mass is tied to the fact that in chemical processes, atoms are conserved. Since every atom contributes to the mass of reactants and products in a reaction, not losing any atoms is equivalent to not losing any mass.
Explanation:
So they both do.
please help me at the esp
Answer:
please follow me i will give your answer
What is the relationship between memory and learning?
A.) Memory and learning are the same process.
B.) Memory outlasts learning.
C.) Memory is more important than learning.
D.) Memory is the foundation of all learning.
Answer:
D.) Memory is the foundation of all learning.
Explanation:
What does Jesse tell his friends he is too old to believe in?
Answer:
While on the bus to the campsite, Jesse recalls that he didn't sleep for a week after hearing about a TV show in which aliens kidnap a little girl. But he tells his friends that he's too old to believe in aliens.
Explanation:
To operate smoothly, a restaurant depends on its employees. Therefore, employees must be on time for all scheduled shifts. Employees must be prepared to begin their shift upon arrival. They are also expected to work until the end of their scheduled shift. Employees must take scheduled breaks. Breaks are 15 minutes or 30 minutes, based on shift length.
Management allows for emergency personal time. Emergency time may be used for illness, accidents, appointments, or family needs. In case of emergency, please follow this process:
Call the restaurant to inform your manager of the emergency.
Tell your manager when you will be absent from restaurant duties and when you can resume work.
Remember that excessive absenteeism and tardiness will result in disciplinary action.
What is the main idea of the first paragraph?
A. For the restaurant to run well, employees must work their scheduled shifts.
B. To work a scheduled shift from beginning to end, employees must be on time.
C. The restaurant will fail if employees don’t work until the end of their scheduled shifts.
D. Employees need to be ready to work when they arrive and take breaks every 15 to 30 minutes.
E. The length of employees’ shifts is based on the time employees arrive.
Answer:
A. For the restaurant to run well, employees must work their scheduled shifts.
Explanation:
Question 3 of 10
What is a network?
A. The main idea or information contained in a media piece
B. Many people or things that are individually connected to one
another
C. A means of mass communication in print and other forms
O
D. A group of individuals who share the same ideas and values
Answer:
B. Many people or things that are individually connected to one
another
Explanation:
please answer my ESP
Answer:
1. teacher
2.pag gawa ng example ng mabuting ugnayan ng pamilya
3. Meron ding iba pero mas Marami Ang nagpapahalaga
Answer:
answer is none
Explanation:
Twain creates a _____
in the first half of the story to create irony. A. furious tone
B. solemn mood
C. anxious tone
D. exciting mood
the correct answer for this question is D.
What kind of reward and sacrifices do you believe a doctor would have?
Answer:
Helping others in an incredibly significant way
When someone is sick or injured, his or her normal way of life is disrupted and doctors have the incredible opportunity to restore these people's lives to normalcy and even save some from death itself. Therefore being a doctor is extremely rewarding.
Explanation:
What goals do you have for your medical career.Why do you believe it is important to increase racial diversity in healthcare 400-600 words
Answer:
I think this is a very personal answer, but I can help you with the second part
Explanation:
Everyone needs health care, therfore we need a representation of the population in medicine. This can be encouraging younger generations to persue medicine and make sure their is sufficent support for those students. Health dispairities are a big problem in figuring out why certain populations are not able to get health care. I personally think that a community in it of itself needs to support its own community members. It is hard to have foreign people who may not know the community to support the community.