An athlete throws the javelin 212 m. The average speed of the javelin was 15 m/s. How long was the javelin in the air?

Answers

Answer 1

Answer:

The correct answer is - 14.133 seconds.

Explanation:

The time that the javelin took in the air before landing after the 212 m throw can be calculated by simple distance and velocity formulas which say that the speed of an object is equal to the distance traveled by the object in unit time.

Given:

Speed or s = 15 m/s

Distance or d = 212 m

Then, the time or t =?

Solution:

By the formula, s = d/t

or t = d/s

t = 212/15

t = 14.1333

thus, the correct answer is - javelin was in the air for 14.1333 seconds.


Related Questions

Which of the following can cause mutations?
SELECT ALL THAT APPLY
a
certain viruses
b ultraviolet or ionizing radiation
С
certain bacteria
d certain chemicals

Answers

I know that b is one of them

Which of the following statements is FALSE regarding the effects of exercise on metabolism and body composition? Group of answer choices It slightly raises the metabolic rate for several hours after exercise. The increase in muscle mass raises the metabolic rate. It increases caloric expenditure and thus helps regulate body weight. It can result in substantial weight gain due to increase in muscle mass.

Answers

Answer: The false statement regarding the effect of exercise on metabolism and body composition is that (It can result in substantial weight gain due to increase in muscle mass).

Explanation:

Metabolism of the body simply means all the chemical reactions in all the cells of the body and the metabolic rate is normally expressed in terms of the rate of heat liberation during chemical reactions or physical activities.

The body composition of healthy adults who maintain stable body weight, energy intake is balanced with energy output. Energy output includes energy used for:

--> performing essential metabolic functions of the body.

--> performing various physical activities (exercise)

--> digesting, absorbing and processing food.

--> maintaining body temperature.

When an individual performs exercise, the rate at which heat is liberated( metabolic rate) is increased. This is because ATP which is gotten from the food is used as energy during exercise and is converted to heat as the end product.

Also, increase in muscle mass raises the metabolic rate because the more muscle in the body, the more calories are used up during rest and therefore the higher your metabolic rate.

Therefore the statement is false about the effects of exercise on metabolism and body composition because exercise involves energy output cannot lead to SUBSTANTIAL weight gain even in increased muscle mass.

5. When would it be necessary for the two daughter cells to be different than the mother
cel

Answers

Answer:

Living cells go through a series of stages known as the cell cycle. The cells grow, copy their chromosomes, and then divide to form new cells.

in eukaryotes cellular respiration takes place in the

a. nucleus
b.mitochondria
c.cellular membrane
d.cytoplasm​

Answers

the answer is B, mitochondria

Primary cellular sites for synthesis of proteins

Answers

Answer:

D - Ribosomes.
It’s D good luck have a good night

Your friend is an avid swimmer and wants to burn the most calories in her 20 minute daily swim. She has a choice of swimming in a pool with a water temperature of 80°F (26.7°C) or one with a water temperature of 72°F (22.2°C).

Which pool should your friend choose to achieve her goal? Explain why.

Answers

Answer:72

Explanation:

The water is colder so you would burn more calories.

Far more calories are burned during cold water swimming than swimming in warmer water. The main idea behind this is a fact that cold water decreases the body temperature so much that the body must act to maintain temperature homeostasis.

What is Swimming?

Swimming is a preferred sports activity for burning of calories faster. It is because the resistance of water is so much higher and consistent than that of air, it becomes easier to burn calories by swimming than running. Swimming is a full body workout, that results in more calories burned.

When the temperature of water drops, the metabolism increases up to keep the body warm and people starts shiver, etc. Swimming in cold water will make the body work twice as hard to keep warm and burn more calories in the process. This is one reason why people lose more weight when swimming regularly in cold water than warmer water.

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5. Which of the following is a non-flowering plants?
A cypress
B. santan
C. rose
D. yellow bell



☹️ paki answer​

Answers

Answer:

cypress

Explanation:

because this plants is one of the non flowering plants

Answer:

cypress

Explanation:

I have seen it around on my father's friend house they say its cypress and there was no flower in it

What are the differences between active transport and passive transport

Answers

Passive transport doesn't require energy , However Active transport does require energy. That’s the difference.

Please help! Thank you... 3

Answers

Answer:

Adenine (A) = 28%

Cytosine (C) = 22%

Explanation:

The DNA molecule, which is the genetic material that stores or holds information needed by the cell for growth, reproduction etc. Structurally, the DNA is composed of nucleotide subunits, which are of four types namely; Adenine, Guanine, Cytosine, and Thymine etc.

According to Chargaff in his complementary base pairing rule, he states that Adenine will always pair with Thymine (A-T) while Guanine will always pair with Cytosine (G-C). Based on this, Chargaff further stated that the amount of adenine must be equal with that of thymine while that of guanine must be equal to cytosine.

In total, their total amount must be equal to 1 or 100% i.e. (A + T) + (G + C) = 100%. In this question, 22% of Guanine are found in the DNA of a fox. This means that automatically, the percentage of cytosine is 22%. We then calculate the amount of Adenine and Thymine as follows:

(A + T) + (G + C) = 100%

A + T + 22 + 22 = 100

A + T + 44 = 100

A + T = 100 - 44

A + T = 56

Since A = T,

56/2 = 28

Hence, A = 28%, T = 28%


1. Respiration takes place in the?

Answers

Answer:

lungs. that is why it is called respiratory system

Explanation:

Answer:

Mitochondrion.

Explanation:

The enzymatic reactions of cellular respiration begin in the cytoplasm, but most of the reactions occur in the mitochondria. Cellular respiration occurs in the double-membrane organelle called the mitochondrion. The folds in the inner membrane are called cristae.

What holds the DNA in your cells? PLEASE HELP!!!!!!!!!

Answers

Answer:

The nucleus

Explanation:

Answer:

nucleus

Explanation:

The nucleus contains most of the DNA in a cell and this DNA is called the chromosomal DNA it is separated from the rest of the cell (cytoplasm) by a double layer of membrane.

Which image illustrates the following

A.gametogenesis
B.meiosis
C.egg production
D.all of the above

Answers

whats the image? it’s not there

Treatment Preparation
Your treatment choices are saline solutions with different amounts of salt (NaCl) that can be added to
Clark's blood and affect osmosis in the brain.
In medicine and veterinary medicine, saline solutions are compared with the normal concentration of
sodium (~143 mmol/L) in healthy blood. Three saline solutions are available: isotonic, hypotonic, and
hypertonic.
Concentration of Sodium
Interpret each as higher, lower, or equal to
normal blood Nat concentration.
Lower
Equal Higher
Isotonic Saline
Hypotonic Saline
000
Hypertonic Saline

Answers

Answer: isotonic saline is equal

              Hypotonic saline is lower

               Hypertonic saline is higher

Explanation:

Here, three saline solutions are available: the isotonic saline solution has an equal sodium concentration, the hypotonic solution has a lesser sodium concentration, and the hypertonic solution has a high sodium concentration.

What is the significance of the saline solution in the medications?

It is critical in the medication because the solution is made up of a mixture of salt and water through which the drugs are delivered and because it is given in intravenous (IV) therapy or to rehydrate patients when there is a need for it. The saline concentration should be regulated here in this solution, or else it may change the blood cells' structure.

Hence, here, three saline solutions are available: the isotonic saline solution has an equal sodium concentration, the hypotonic solution has a lesser sodium concentration, and the hypertonic solution has a high sodium concentration.

Learn more about the saline solution here.

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Which is an accurate genotype for free earlobe (dominant)?




A.
EE or ee

B.
ee

C.
Ee

D.
Ee or EE

E.
EE

Answers

Answer:

option D is correct.

Ee or EE

Explanation:

because free ear lob is a dominant trait. so when E is present the ear lobe will free.

Biology! 10 points please help!

Answers

Answer:

substitution

Explanation:

describe Convection current in ur own words pls

Answers

Answer:

Like the distribution of heat, like a boiling pot of water the heat circulates through the pot- convection

Explanation:

Answer:

A process that involves the movement of energy from one place to another. It is also called convection heat transfer.

All of the following climate regions are labeled on the map above except
A humid subtropical
B. tropical wet
C. highland
D. arid
Please select the best answer from the choices provided
A
B

Answers

I if it’s eastern geo I think it’s D if I get it wrong I’m sorry

Answer:

The answer is c

Explanation:

Which of the following is a function of lipids?
A.They act as genetic material.
B.They increase the rate of reactions .
C.They form chains of amino acids .
D.They store energy for the cell.

Answers

Answer:

Explanation:

A.actúan como material genético.

B.Aumentan la tasa de reacciones.

C.Forman cadenas de aminoácidos.

Almacenan energía para la célula.

A gardener realizes her plant beds do not contain enough organic material. Which of the following choices
would she be most likely to choose to amend her soil?
choices:topsoil,sand,peat,perlite.

Answers

Answer:

Peat

Explanation:

Did the question on edg 2021

Answer:edg

Explanation:

peat ‍

What is DNA and all of its functions

Answers

Answer:

DNA is the building blocks of every organism. It works as genetic or hereditary material.

Explanation:

Answer:

Hello! DNA (Deoxyribonucleic Acid) is a molecule composed of two polynucleotide chains, which coil around each other to form a double helix that carries genetic instructions for the development, functioning, reproduction and growth of all known organisms and many viruses. DNA and the instructions contained in it passes from adult organisms to their offspring during the process of reproduction. Hope this helps ! :)

The organism Feline domesticus is a member of the genus:

1. domesticus
2. Lynx
3. Feline
4. Animalia

Answers

Felis domesticus & Felis silvestris. They both belong to the same genus (cats).

What is the defining feature of lipids?
O They are can be either polar or nonpolar, depending on the nitrogen-containing functional group attached.
O They are largely nonpolar because they consist of mostly non-polar C-C and C-H bonds.
O They are largely polar because they consist of mostly polar glycosidic bonds.

Answers

Answer:

O They are largely nonpolar because they consist of mostly non-polar C-C and C-H bonds.

Explanation:

Lipids do not contain nitrogen groups and do not have polar glycosidic bonds. In addition, the function of cellular membranes depend greatly on the fact that lipids (phospholipid bilayers) are polar!

The defining feature of lipids is- option. They are largely nonpolar because they consist of mostly non-polar C-C and C-H bonds.

Lipid is a micro biomolecule that is made up of fatty acids or their derivatives. These are molecules that are soluble in nonpolar solvents and insoluble in water.

Lipids are largely nonpolar in nature.The nonpolar nature is due to consisting mostly nonpolar carbon-carbon or carbon-hydrogen bonds.Non-polar molecules are hydrophobic therefore, lipids also insoluble in water. Lipids help in many cellular processes and parts of cell structure such as cell membrane.

Thus, the correct answer would be the option. They are largely nonpolar because they consist of mostly non-polar C-C and C-H bonds.

Learn more about cell membrane:

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(HELP ASAP I'LL GIVE YOU BRAINLIEST)

Answers

Answer: D, because in the text it said "pay for her influential impact".

I hope it helped if what i said made sense.. :D  

PLEASE HELP ME !!!!!

Answers

Answer:

1. negatively charged ion

Explanation:

It will be a negative charged ion because when electrons are gained, it shows that it is negative. Same goes opposite

How the Medical Assistant should evaluation a site for drug administration and why. 

Answers

Answer:

In general, documentation should include the date and time administered, medication name and dose, route of administration, site of administration (if applicable), the lot and expiration date (if applicable), and the patient's response to the medication.

Write and balance the cellular respiration equation of glucose (C6H12O6). Compare it with the photosynthesis reaction in terms of reactants, products, energy fow, and the signifcance of each.

Answers

Answer:

6O2 + C6H12O6 --> 6CO2 + 6H2O + ATP energy

and the photosynthesis reaction takes the opposite only it's input is sunlight energy

without either we are all dead

they are complimentary

Explanation:

What differences can you spot between the Columbian ground squirrel and the Cape ground squirrels?​

Answers

Answer:

the columbian ground squirrel is bigger and longer and has a orange spot on its nose and the cape ground squirrel is smaller and skinnier

Answer:

Okkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

Which of the following statements best exemplifies the importance of mentoring? A mechanism to transmit values and standards of professional conduct. A narrowing of the circle of influence and learning. The primary way for senior researchers to recruit a trainee to complete projects for them. A mechanism to get additional grant support

Answers

Answer:

A mechanism to transmit ........ professional conduct

Explanation:

Hope it helps you

Tq

Mentoring is considered as a mechanism, which assists in transmitting the standards and values of professional conduct.  

• A mentor is an individual who advise, support, and guide the person.  

• Mentoring is a process or an act of guiding and helping another person to support their personal development.  

• The main objective of mentoring is to assist one to grow as a person and become the best version of oneself.  

• This helps one in attaining the personal or career goals, presenting one to novel ways of thinking, sharing valuable life lessons, challenging one limiting assumptions, and much more. In short, mentoring helps an individual to attain the values and standards of professional conduct.  

Thus, mentoring helps one to attain the values and standards of professional conduct.

To know more about:

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What is the scientific term that describes the genetic code for an organism ?

Answers

Answer:

the scientific term that describes the genetic code for an organism is the nucleus.

Answer:

genotype

Explanation:

i believe the correct answer is genotype


Please help!!!!

Can someone please give a small description on these words based off of plant cells

Cell wall
Golgi apparatus
Chloroplast
Cell membrane
Intermediate filaments
Ribosome

Answers

Answer:

Cell wall: A protective layer covering the outside of the cell. They keep the shape of the plant cell, prevent water loss, and provide support.

golgi apparatus: Transports proteins and lipids around the cell. Often it is called the shipping department of the cell.

chloroplast: Chloroplasts store chlorophyll and this is where photosynthesis takes place in the cell.

Cell membrane: A layer that covers the cell, acts as a gate and determines what comes and goes through the cell. It allows good things in, while keeping others out.

Intermediate filaments: Provides support when when the plant cell comes into contact with other cells.

Ribosome: The part of the cell that is responsible for creating proteins.  

Hey,

The cell wall is an extra protective layer around the plasma membrane, and allows for plant protection from bacteria, water etc. The Golgi apparatus is an organelle within plant cells that modifies, packages, and transports proteins and lipids throughout the cell. Chloroplasts are organelles within plant cells that are responsible for photosynthesis. They contain thylakoids and the stroma. The cell membrane (aka plasma membrane) is made up mainly of phospholipids. It is selectively permeable, meaning it only allows certain substances to pass, usually small, non-polar particles. Ribosomes are the sites of protein synthesis, or where proteins are built. Hope that helps!
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