A projectile is fired vertically upward at an initial velocity of 100 m/s. How high will it rise? How long will it take to reach that height?

Answers

Answer 1

The question is solved using the equations of motion

According to the equations of motion:

[tex]v^2 = u^2 -2gh[/tex]

v = final velocity

u = initial velocity

g = acceleration due to gravity

h = height

Note that at the maximum height, the final velocity (v) = 0 m/s

so we can write:

[tex]u^2 = 2gh[/tex]

[tex]h = \frac{u^2}{2gh}[/tex][tex]h= \frac{100^2}{2 * 10}[/tex]

h = 500 m

The time taken is obtained from:

[tex]v= u - gt[/tex]

since v= 0 at maximum height

[tex]u = gt\\\\t= u/g\\\\t= 100/10\\t = 10 s[/tex]

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Related Questions

why do solvents particles flow into the cell when the initial volume is below 50%

Answers

Answer:

because of it's lower concentration

Lower concentration

Which of the following is a scientific question?
O A. What is the boiling point of seawater?
O B. What should I do this weekend for fun?
C. Does each period during the school day last the same number of
minutes?
O D. How long can I use a pen before it runs out of ink?

Answers

A. What is the boiling point of seawater

easy biology question below first correct answer gets brainliest

Answers

Answer:

B

Explanation:

B.bb, because there is no dominant present.

anyone please help me​

Answers

Answer:

b b

B Bb Bb

b bb bb

if the brown mail had been BB then all offspring would have been Bb and all brown however is the male is Bb as above and you perform a test cross 50% of all Offspring should have the bb genotype and a white phenotype a testcross to a heterozygous individual should always yield about a one-to-one ratio of the dominant or recessive phenotype so both of the genotypic and phenotypic ratios here are 50/50

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6. If the time period were extended to 6 hours, what would be the expected blood sugar level for
Person B?

Answers

According to the graph, the blood sugar level for person B is 130 mg/dL after 6 hours of eating meal.

The blood sugar level is highest just after eating the meal but with the passage of time, the concentration of blood sugar level decreases due to absorption by the body. One hour after eating the meal, the blood glucose level is slightly decreases but after 6 hours, the blood glucose level tends to very low due to more consumption of the body or storing by the body in different parts.

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2.1explain the body's hormonal response to dehydration​

Answers

Answer:

Vasopressin, a hormon is secreted by pituitary gland which is response to dehydration , causes kidney to excrete less water.

The body's hormonal response to the dehydration is the action of vasopressin in the kidney. The vasopressin decrease the work of the kidney and it leads to decrease the amount of water secreted by the kidney to save water in the body.

What is dehydration?

Dehydration is a condition where there is less water present in the body. There are many reasons of dehydration, like drinking less water or diarrhea. All reactions of the body work by water. So loss of water severely affect the body.

The hormonal response to dehydration is the release of vasopressin by the pituitary gland of the body. The vasopressin saves water from the body to help body fighting with dehydration.  It makes the kidney to filter less water.

Thus, the activation of vasopressin in the kidney causes the body's hormonal reaction to dehydration. Vasopressin lessens the kidney's workload, which causes a reduction in the amount of water the kidney secretes to conserve the body's water supply.

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For the numbered steps below, select the option that places them in the correct order. 1) The ribosome binds to the mRNA and uses tRNAs to translate mRNA into the corresponding amino acid polypeptide sequence. 2) The spliceosome removes introns. 3) The primary structure of the polypeptide chain undergoes hierarchical foldings to form the tertiary structure. 4) RNA polymerase binds to the promoter region of a gene and initiates transcription.

Answers

Answer:

first 4, then 2, then 1, and lastly 3

Explanation:

First, RNA polymerase binds to the promoter region of a gene on the DNA and initiates transcription. Transcription is the process by which we get mRNA (coding RNA) which is used as a template for protein synthesis. Then, in transcription, the resulting mRNA undergoes modification and maturation. This  involves removal of introns, addition of 3'-poly-A tail and 5'-cap. Introns are sequences that do not code for protein and are hence removed. The structure that removes introns is the spliceosome. Thirdly, mature mRNA travels to the cytoplasm. Ribosome (composed of rRNA) binds to mRNA and tRNA to start the process of protein synthesis. The process of formation of protein is called translation. Lastly, the primary structure of protein may undergo folding to form a tertiary structure.

Which correctly describes Earth's population over the centuries?
O A. It has risen steadily.
B. It has remained steady overall.
C. It has risen at an increasing rate.
O D. It has declined in some places due to migration.
SUBM

Answers

C

It has risen at an increasing rate throughout time. This rate hasn’t been steady due to many reasons. See the attached photo for details.

Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.

Earth's population over the centuries has risen at an increasing rate. So, the correct option is C.

How the population of Earth is increasing?

This sharp increase in population has been primarily caused by an increase in the proportion of individuals reaching breeding age, the gradual extension of human life expectancy, growing urbanization, and quickening migration. This expansion has been accompanied by significant changes in the fertility rate.

One of the key reasons for India's population expansion is a drop in death rates brought on by better medical services and a steady birth rate. The widespread illiteracy in India makes people believe that "children are god's blessings," which makes them opposed to the idea of "family planning." Earth's population over the centuries has risen at an increasing rate.

Therefore, the correct option is C.

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A car burns gasoline as it moves down the road. Which energy transformation
is the car performing?
A. Kinetic energy to chemical energy and light energy
B. Potential energy to sound energy and nuclear energy
C. Chemical energy to kinetic energy and thermal energy
D. Thermal energy to kinetic energy and nuclear energy

Answers

Answer:

A

Explanation:

HELP QUICKLY!
While the average human is able to hold his or her breath for approximately one minute, a whale can dive for over 30 minutes without returning to the surface. Which of the following correctly describes this difference?

Whales need less energy than humans.
Whales gather energy from their environment better than humans.
Whales are more efficient at gas exchange than humans which helps them conserve energy.
Whales have cells that produce energy differently than humans.

Answers

The answer is: “Whales are more efficient at gas exchange than humans which helps them conserve energy.”

which of the following describes the function of nucleic acids?

Answers

Answer:

A

Explanation:

DNA

Answer:

Option A

Explanation:

The functions of nucleic acids have to do with the storage and expression of genetic information. Deoxyribonucleic acid (DNA) encodes the information the cell needs to make proteins. A related type of nucleic acid, called ribonucleic acid (RNA), comes in different molecular forms that participate in protein synthesis

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Last electron level that has an electron in it.
Group of answer choices

Valence Level (Shell or Cloud)

Atom

Electrons

Atomic Symbol

Answers

Valence level (shell or cloud)

easy biology question below first correct answer gets brainliest!!

Molecules move from
diffusion.
during
A. high concentration to low concentration
B. an equally distributed concentration to an unequally
distributed concentration
C. one cell's nucleus to another cell's nucleus

Answers

Answer:

A) high concentration to low concentration is it's answer

what is cell differentiation?

Answers

Answer:

The process through which a cell transforms from one cell type to another is known as cellular differentiation. In most cases, the cell transforms into a more specialized form. As a multicellular organism develops from a basic zygote to a complex system of tissues and cell types, it undergoes many stages of differentiation.

OAmalOHopeO

Which of the following is true of living things that have prokaryotic cells when compared to living things that have eukaryotic cells?
They have many types of organelles.
They are types of plants.
O They are always larger than eukaryotic organisms.
They are always unicellular.

Answers

Answer:

the answer is the last one, they are always unicellular

Explanation:

What characteristic of life can you live without out of the 10 main ones

Answers

Answer:

reproduction

We don't HAVE to reproduce to live, but it needed for us to be brought in to this world.

Explanation:

Which of the following statements are true about antibodies?
A. Polyclonal antibodies are part of the natural immune response; monoclonal antibodies are clones of plasma cells used for medical research.
B. Polyclonal antibodies are used for the treatment of cancer; monoclonal antibodies are used for medical research.
C. Monoclonal antibodies work against many types of antigens; polyclonal antibodies work against a specific antigen.
D. Both Polyclonal and Monoclonal antibodies are naturally produced in immune responses.

Answers

Answer:

The answer are A and D.

Explanation:

ANTIBODIES

Antibodies are immunoglobulin produced in the body by B cells to help i

For immune response or fight against any foreign invade in the body.

There are two common classification of antibodies and these are;

1. Monoclonal antibodies are produced in the laboratory that can help to restore and improve the immune system against cancer attack.

They bind to the antigens and are many on the surface of cancerous cells than normal cells. They are use for medical research.

2. POLYCLONAL ANTIBODIES are produced by different B cells the body. They are produced from heterogeneous molecules in live animals. They can bind to numerous antigens. They are part of the natural immune response of the animals. They are produced by injecting the animal with immunogen.

Therefore, Polyclonal antibodies are part of the natural immune response; monoclonal antibodies are clones of plasma cells used for medical research.

Both Polyclonal and Monoclonal antibodies are naturally produced in immune responses

Answer:D

Explanation:

D

what is the rate of person blood in one day​

Answers

Answer:

about 6,000-7,500 liters (1,500-2,000 gallons) of blood daily.

Answer: mark me as a brainlist plz plz plz i really need this

Explanation:

Normal blood in human body

Adults: The average adult weighing 150 to 180 pounds should have about 1.2 to 1.5 gallons of blood in their body. This is about 4,500 to 5,700 mL. Pregnant women: To support their growing babies, pregnant women usually have anywhere from 30 to 50 percent more blood volume than women who are not pregnant

1. Define the term lichen.
2. State and explain the organisms that compose a Lichen.
3. Explain how Lichens are used to establish a community or an ecosystem.​

Answers

Answer:

Lichens are bizarre organisms and no two are alike. Lichens are a complex life form that is a symbiotic partnership of two separate organisms, a fungus and an alga. The dominant partner is the fungus, which gives the lichen the majority of its characteristics, from its thallus shape to its fruiting bodies.

Explanation:

Hope it helps

5. What are hyphae made of?

Answers

Answer:Hyphae are the feathery filaments that make up multicellular fungi. They release enzymes and absorb nutrients from a food source. Hyphae have a firm cell wall made of chitin.

Explanation:

Answer:

They are made of the feathery filaments that make up multicellular fungi

Select the correct answer from each drop-down menu.disease. Some carriers of the disease exhibit Sickle cell disease is passed on from parent to offspring. Sickle cell disease is an Increased resistance to malarial parasites. This resistance is a mutation.

First drop down options are (inherited) & (acquired)
Second drop down options are
(Neutral)&(harmful)&(beneficial)

Answers

Answer:

Inheriteted/Beneficial

Explanation:

First drop down: "Sickle cell disease is passed on from parent to offspring."

Inheriteted

Second drop down

A increased resistance to a bad thing (malarial parasites) would be Beneficial

Se podría afirmar que las aletas anteriores de las ballenas se pueden comparar con estructuras similares de organismos terrestres?

Answers

Answer:

Las aletas de una ballena y el brazo de un hombre son un ejemplo de órganos homólogos, porque la estructura ósea de las aletas de una ballena es parecida (homóloga) a la estructura ósea de nuestros brazos, debido a que ambas proceden del mismo origen embrionario pero se han modificado para desempeñar funciones ...

Elodea is a plant that lives in water. Like all plants, elodea can make its own food through
process called photosynthesis. Oxygen gas is also produced during photosynthesis.
Photosynthesis can only happen in the presence of light. To measure the rate of
photosynthesis, a piece of elodea can be placed in an inverted test tube filled with a
sodium bicarbonate solution. Oxygen gas produced by photosynthesis will collect at the
top of the test tube.
A student has designed an experiment using elodea plants. The experimental setup is
shown in Figure 1-4
Which of the setups would serve as the control of the experiment?
Bucket
Lamp
Flashlight High
Natural
Elodea
Sodium
bicarbonate
solution

Answers

The controlled variable is kept constant during the whole experiment in all the different study groups. In this experiment, Sodium  bicarbonate  solution is the controlled variable.

------------------------

During an experiment, the controlled variables are kept constant in the control groups and the experimental groups. Unlike the independent variable, the controlled variables do not influence the results. These variables do not affect the response of the dependent variable.  

In this experiment,

The independent variable → presence/absence of light reaching the plant. The researcher regulates the amount of light by using different elements such as the bucket, lamp, flashlight, and natural light. The dependent variable → oxygen production through which the researcher measures the photosynthesis rate. The controlled variableSodium  bicarbonate  solution. It provides carbon dioxyde, and must be constant in the four scenarios to avoid an effect on the results.      

-----------------------

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A person who studies about rocks is Called

Answers

Answer:

Petrologist

Explanation:

Petrology, scientific study of rocks that deals with their composition, texture, and structure; their occurrence and distribution; and their origin in relation to physicochemical conditions and geologic processes.

hope it helped

Answer: Is called a petrologist

Explanation: Petrology is the scientific name for the study of rocks and the conditions in which they form so the person who study's petrology is under the term petrologist

HOPE THIS HELPS!!!

In Florida, the building collapsed so far away that there was a cordon and no one was allowed to go near and police were standing guard. Is it weird that this kind of accident rescue doesn't let people get close?

Answers

i don’t think so they don’t want anymore people getting hurt

What kind of question would an ancient myth try to answer?

How are the moon and the tides connected?

What minerals cover the surface of the moon?

Which phase of the moon is most beautiful?

Why does the moon get smaller and disappear?

Answers

Answer:

why does the moon get smaller and dissapear?"

Explanation:

One of the questions that ancient mythology would try to answer would be "why does the moon get smaller and dissapear?" Ancient mythology stories always try to explain everyday occurrences in individuals lives that did not really have a simple explanation at the time due to lack of knowledge. Therefore, these stories usually involved the acts of deities to explain the different unknown events in the world such as the moon dissapearing, shooting stars, volcanoes, hurricanes, etc.

The cell membrane regulates what enters and leaves the cell, only allowing
certain things to enter or exit. This is called:
A:Selective Permability
B:Homeostasis
C:Osmosis
D:Transport

Answers

Answer:

A)selective permeability

Explanation:

it allows for it to choose ,small particles easily enter and leave the cell unlike large particles

Your answer would be selective permability

what is the drug delivery system for alka seltzer

Answers

by tablets. oral intake.

Answer:

aspirin/citric acid/sodium bicarbonate (OTC)

Explanation:

Gracias a la nutrición los seres vivos logran:
A. Suplir sus necesidades energéticas, es decir que obtienen la energía necesaria para realizar todas las actividades: saltar, cazar, nadar, masticar, parpadear, entre muchas otras.

B. Reparar estructuras deterioradas, ya que en la nutrición se obtienen sustancias como las proteínas, que en el proceso pueden ser incorporadas como parte del organismo.

C. Crecer y renovar sus células, en tanto que la nutrición proporciona la materia y la energía necesarias para que las células se reproduzcan o aumenten su tamaño.

D. Todas las anteriores.

Answers

Answer:

c la nutrición nos renueva y proporciona materia

Which statements describe the synapse? Select all that apply.

It carries information through electrical impulses to the cell body.
It is part of the neuron.
It ensures that information travels in one direction only.
It carries information through chemical impulses to the cell body.
It is the gap between neurons.
It ensures that information travels in multiple directions.

Answers

Answer:

A

Synapse, also called neuronal junction,  its carries   of information through electric nerve impulses between two nerve cells (neuron)  or between a neuron and a gland or muscle cell (effector).

Answer:

A

C

E

Explanation:

I just took the quiz on edge

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