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

A DNA nucleotide is composed of

Answers

Answer:

The answer is Cytoplasm

Explanation:

Phosphate, sugar and a base

Why is it important that the heat capacity, latent heat of fusion and latent heat of vaporization of water are high?

Answers

Answer:

These characteristics of water allows excellent working in the steam engines.

Explanation:

It is very important that the heat capacity, latent heat of fusion and latent heat of vaporization of water are high because due to large heat of vaporization, steam or vapors of water carries a huge amount of thermal energy. This large amount of heat energy is released when the steam condenses due to loss of kinetic energy. This property of water making it an excellent working fluid for heat engines as compared to any other fluid.

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Symbiotic fungi get their food by ____________.

Question 6 options:

absorbing dead or decaying organisms.


harming the host.


not harming the host, but not helping it.

Answers

The answer is absorbing dead or decaying organisms


Discuss the similiarities between
Bryophytes and
Pteridophyte

Answers

Answer:

Similarities between Bryophytes and Pteridophytes

Ø Both Bryophytes and Pteridophytes are land plants. Ø Both possess distinct Gametophytic and Sporophytic generations. Ø Both groups show heteromorphic alternation of generation. Ø Rhizoids are present in Bryophytes and Pteridophytes

hope it helps you

if yes maark me as brainliest

Similarities

Both bryophytes and pteridophytes prefer to grow in moist and shady habitats.
Both need water for the act of fertilization.
In both bryophytes and pteridophytes sexual reproduction is oogamous type.
Both show heteromorphic alternation of generation.
Both bryophytes and pteridophytes have sporic meiosis.

The haploid number is 60, so that means the diploid number is *

A) 60

B) 120

C) 30

D) 15

PLEASE HELP

Answers

Answer:

option B- 120

Explanation:

haploid(n) means a complete set of chromosomes, haploids have half number of chromosomes of a diploid(2n) organism. while diploid means two complete set of chromosomes.

A boundary formed when two plates move past each other.
A. Ocean Ocean basinbasinB.
B. Divergent Divergent boundary
C. Transform Transform boundary
D. Convergent Convergent boundary

Answers

Answer:

it would be C. transform fault boundary

Explanation:

It’s C

Well when two plates slide past one another than this process is known as Transform Plate Boundary, due to this phenomena fissures and cracks are formed inside the crust through which magma rises onto the surface and canyons are also formed due to this process.

Describe the structure of DNA and how this structure allows DNA to carry out its function. (6 marks)

Answers

Answer:

DNA is someone's identity representing who they are, it helps people function through there daily lives

Explanation:

What might a doctor give to someone who is infected with a bacterial disease such as Gonorrhoea?

a.) An Antibiotic
b) Antiviral Medication
c.) An Antiseptic d.)Antifungal Medication​

Answers

Answer:

B: Antibiotics

Explanation:

Antivirals treat viruses, antifungals treat fungi, and OTC treatments are merely symptomatic treatment. Antibiotics typically dissolve the cell wall of bacteria meaning they explode, so they actually kill the bacteria.

Which part of the plant cell provides protection and structural support

Answers

Answer:

cell wall provides protection and structural support

Cell Wall provides the structural support and protection.

Which of the following is NOT involved in photosynthesis or cellular respiration?
a
cytokinins
b
chlorophyll
c
carbon dioxide
d
water

Answers

Answer:

Your answer is cytokinins.

Explanation:

Complex chemical processes such as photosynthesis occur in a controlled series of steps with the help of
A. enzymes
B. nucleic acids
C. phospholipids
D. fatty acids

Answers

A) enzymes speed up complex chemical processes

Are horseshoe carbs the oldest knob species of crabs

Answers

Answer:

yes they are

Explanation:

Answer: Yes

Explanation:

Which of the following would show the Dominant Genotype? (Choose all that apply)

Answers

Answer:

The first one and second one

Explanation:

Tatjana's vision for detail is declining. She once loved doing embroidery, but has switched to sculpting with clay, which is easier on her vision. This is an
example of selective________
with compensation

Optimization

Answers

Answer:

im confused what your asking if your asking but i think its optimization yes

Explanation:

I am a rock entering a planet's atmosphere. *

A. Asteroid
B. Star
C. Meteor
D. Comet

Answers

The answer is C. meteor :)

A DNA nucleotide is composed of

Answers

Phosphate, sugar (deoxyribose) and a base (A, T, G or C)

Why are nonnative species a threat to biodiversity?

They often use up resources that other organisms need.
They are not able to successfully breed in the wild.
They release pollution into many environments.
They easily contract and spread diseases to other organisms.

Answers

Answer:

A

Explanation:

They often use up resources that other organisms need.

The reason of nonnative species a threat to biodiversity is because of using resources that other organisms need.

Reason why nonnative species a threat to biodiversity:It leads to various kinds of diseases. It acted like predators or parasites. It acted like a competitor or rivalry. It should be hybridizing with local species.

Hence, The reason of nonnative species a threat to biodiversity is because of using resources that other organisms need.

Learn more about biodiversity here: https://brainly.com/question/6503349

Please help me, thanks!

Answers

Answer: its the first answer

Explanation:

i just know

It's definitely the first option

Which accurately describes gymnosperms? Select three options. Some of them lose their leaves in winter. Some of them lack seeds. Some of them grow small flowers. They are the oldest type of seed plant. They include the tallest plants. They have female cones that produce pollen.

Answers

Answer:

Some of them lose their leaves in the winter, they are the oldest type of seed plant, and they include the tallest type of seed plants

Explanation:

Gymnosperms are those which grow small flowers, they are the oldest type of plant with seeds, and female cones that produce pollen. So, the correct options are C, D and F.

What are Gymnosperms?

Gymnosperms are defined as vascular plants that reproduce by means of an exposed seed, or ovule, such as angiosperms, or flowering plants, whose seeds are surrounded by mature ovaries or fruits. The seeds of many gymnosperms are produced in cones and do not appear until maturity.

Gymnosperms are found in temperate forest and boreal forest biomes where the some common types of gymnosperms are conifers, cycads, ginkgoes, and gnetophytes.

Thus, Gymnosperms are those which grow small flowers, they are the oldest type of plant with seeds, and female cones that produce pollen. So, the correct options are C, D and F.

Learn more about Gymnosperms, here:

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Direction of the Earth’s axis changes over time.The Earth wobbles like a top on its axis 26,000 year cycle
A.eccentricity
B.Obliquity
C.Precession
D.None

Answers

Answer:

C. Precession

Explanation:

Axial Precession

How do the nutrients found in plants function in plant DNA? Is the function of plant DNA similar to human DNA?

Answers

Answer:

How do the nutrients found in plants function in plant DNA?

Plants take up essential elements from the soil through their roots and from the air (mainly consisting of nitrogen and oxygen) through their leaves. Nutrient uptake in the soil is achieved by cation exchange, wherein root hairs pump hydrogen ions (H+) into the soil through proton pumps.

Is the function of plant DNA similar to human DNA?

How much DNA do plants share with humans? Over 99%? ALL animals and plants share the same DNA which is basically a code of only 4 'letters' which code for the same amino acids from which all proteins are made.

Explanation:

Plants take up essential elements from the soil through their roots and from the air (mainly consisting of nitrogen and oxygen) through their leaves.

How much DNA do plants share with humans? Over 99%?

ALL animals and plants share the same DNA which is basically a code of only 4 'letters' which code for the same amino acids from which all proteins are made.

Thus, these are the correct answer.

To learn more about DNA click here:

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which of these are is a benefit of GMO's

Answers

Which of what? There’s no options
Please update your question because there is nothing there :/

what did scientists learn about the common garden study?

Answers

Answer:

The results of this study suggest that discordance in divergence between morphological characters and molecular genetic markers may represent an opportunity to understand ecological mechanisms of incipient specialization.

Explanation:

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 ‍

Why is it important that a healthy diet does not have a specific macromolecule composition?

Answers

Answer:

The correct answer is - each macromolecule has its own function and role in the body of an organism.

Explanation:

There are four major macromolecules that are essential for the energy and growth and development of an organism, are Proteins, carbohydrates, fat and nucleic acids. Each macromolecule is essential and found in various food sources so any specific macromolecule can not found in a healthy diet.

Proteins play various roles in the body such as support, building blocks, carriers, enzymes, and hormones. On other hand, carbohydrate provides energy for the cells, the transmission of the genetic information will be transferred by a nucleic acid. Fat also helps provide insulation, make lipid membranes.

Phases of meiosis//// ANSWER PLEASE

Answers

Answer: Anaphase I, Anaphase II, Prophase I, Metaphase I, Metaphase II, Telophase I, Prophase II, Telophase II

Explanation:

Which of the following is a characteristic property of matter that could be used to identify an unknown substance?
1)Mass
2)Density
3)Volume
4)Temperature

Answers

Answer:

4) temperature

Explanation:


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!

Which of the following are internal cellular conditions?


A) temperature, pH, water concentration, salt concentration


B) sunlight, dry environment, wind

Answers

Answer: a

Explanation:

The following are internal cellular conditions :

A) temperature, pH, water concentration, salt concentration.

Temperature facilitates deciding what can input or depart the cellular and the way properly molecules observed inside the membrane can function. Temperatures that might be too excessive or too low can severely harm and, in the intense temperature ranges, kill the cellular via their impact at the cellular membrane.

Physiologically ordinary intracellular pH is maximum generally among 7.0 and 7.4, even though there may be variability among tissues (e.g., mammalian skeletal muscle has a tendency to have a pHi of 6.8–7.1). There is likewise a pH version throughout special organelles, that can span from round 4.5to 8.0.

Water concentration:

Water molecules flow into and out of the cell at an identical fee, so the length stays constant. then a cell. This method of water attention is better within the cell than outside. Thus, water flows out of them, inflicting them to shrivel or maybe die.

Salt concentration:

Increase of the way of life medium NaCl attention from a hundred and 20 mm to 220 mm ended in a reduced boom fee and a boom in the content material of ribonucleic acid (RNA), protein, and lipide phosphate consistent. Cell quantity becomes likewise increased.

How to maintain internal cellular conditions?

An organism ought to be capable of keeping internal cellular conditions even if the outside surroundings modify. Examples of modifications encompass pH, temperature, salt levels, water levels, and glucose levels.

To know more about internal cellular conditions refer to the link :

https://brainly.com/question/25921566

What are some organisms made up of Prokaryotic cells and What are some cells made up of eukaryotic cells . Marking Brainly .

Answers

Answer:

Some Prokaryotic Organisms

- Bacteria

- Archaea

- E.Coli

Some Eukaryotic Organisms

- Mushrooms

- Dogs

- Lizard

Some Prokaryotic organisms are Bacteria, Archaea and E.Coli and Some Eukaryotic organisms are mushrooms, dogs and lizard.

What is the difference between prokaryotic and eukaryotic cells?

Prokaryotic cells are cells without a nucleus. Eukaryotic cells are cells that contain a nucleus. Eukaryotic cells have other organelles besides the nucleus. The only organelles in a prokaryotic cell are ribosomes.

The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information.

Eukaryotic cells are cells containing membrane-bound organelles and are the basis for both unicellular and multicellular organisms. In contrast, prokaryotic cells do not have any membrane-bound organelles and are always part of unicellular organisms.

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