3. Peter Paul is pushing a grocery cart full of fruits from the department store to his at
constant speed. The grocery cart and the fruits has a combined mass of 20.00 kg. If the
coefficient of kinetic friction between the box and the floor is 0.24, how much force does
Peter Paul exert on the box?

Answers

Answer 1
F=muXmxg9.8x20x0.24=48 N

Related Questions

The picture below is associated with which biomolecule?

protein

carbohydrate

lipid

nucleic acid

Answers

Carbohydrates is ur answer mate

how do mutations lead to genetic diversity?

Answers

The mutation Mutations are changes to an organism's DNA and are an important driver of diversity in populations. This mutation has introduce a new allele into the population that increases genetic variation and may be passed on to the next generation.

hope it helps.

A tissue is a group of cells which perform essentially the same function. true or false​

Answers

Prompt
What is a row?

Answer:

True

Explanation:

A tissue is a group of cells that does the same function.

explain how the geologist knows that the flow is older then the intrusion

Answers

Through dating a sample of that rock, we determined the extrusion to be 250 million years old. An intrusion extends from the bottom layer into the fourth oldest layer. Through dating a sample of that rock, we determined the intrusion to be 100 million years old. The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. So the full sequence of events is as follows: Layer C formed.

Why are individuals in many developing countries susceptible to diseases such as
polio and pertussis?

because of a lack of education
because of poor hygiene
because of genetic variation
because of a lack of vaccination

Answers

Answer:

because of lack of vaccination

Explanation:

this occur mostly in Nigeria

Answer:

I hope this helps.

Explanation:

Please help me with science!

Answers

I do believe the answer is B because since it is going through each phase, the DNA strand will continue to adjust itself as the cell moves making the strands split allowing themselves to create copies. Since DNA has to be connected with another strand that will fit, it will be able to multiply itself based on the pieces that are missing

What would happen if the rate of evaporation reduces

Answers

Answer:

When temperature and wind speed are constant, but humidity increases, the rate of evaporation will decrease. When wind speed and humidity stay constant, and temperature increases, then the rate of evaporation will increase because warmer air can hold more water vapor than colder air.

Answer:

if the rate of evaporation reduces water cylcle will stops and amount of water present in the world will be increase.humifity will be more.

Explain how the energy would flow between the following organisms: A fox,
grass, and a rabbit.

Answers

Answer:

grass----- rabbit----- fox

Explanation:

A food chain always starts with a producer, which is an organism that makes food. This is usually a green plant, because plants can make their own food by photosynthesis. A food chain ends with a consumer, which is an animal that eats a plant or another animal.

Green plants are producers

They are the first link in all food chains

Plant cells contain chlorophyll and can photosynthesise

Photosynthesis produces glucose and oxygen

Animals are consumers  

If they eat plants, they are the first-order consumers or herbivores  

The chemical energy in the green plants is transferred to the animal when it eats the plant .

Since pesticides run off from
several farms and fields can make its
way to are waterways such as rivers,
lakes, and oceans, what type of pollutant
are they considered to be?

I know this is supposed to be a question but the answer is a Non-Point solution.

Answers

Answer:

It can also clog the gills of fish or smother fish larvae. In addition, other pollutants like fertilizers, pesticides, and heavy metals are often attached to the soil particles and wash into the water bodies, causing algal blooms and depleted oxygen, which is deadly to most aquatic life.Nutrients like nitrogen and phosphorus are essential for growing crops, but they can also trigger algal growth in rivers, lakes and bays. Agricultural runoff flows into the lakes and rivers that hundreds of towns draw their water from.Runoff picks up fertilizer, oil, pesticides, dirt, bacteria and other pollutants as it makes its way through storm drains and ditches - untreated - to our streams, rivers, lakes and the ocean. Reducing runoff can help prevent water pollution, reduce flooding, and protect our precious drinking water resources.

Explanation:

Stormwater runoff can also wash sediment, nutrients or other pollutants into water sources. Increased sediment, nutrients and other pollutants can diminish water quality, threaten drinking water sources, and complicate water treatment processes.

Fossils evidence shows that ___________________were the first photosynthetic organisms on earth,about 1.2 billion years ago.​

Answers

Answer:

cyanobacteria

Explanation:

There is suggestive evidence that photosynthetic organisms were present approximately 3.2 to 3.5 billion years ago, in the form of stromatolites, layered structures similar to forms that are produced by some modern Cyanobacteria

What is the difference between a unicellular organism and multicellular organism?

Select one:
a. Unicellular organisms are made up of a single cell, while multicellular organisms are made up of several cells.
b. Unicellular organisms are not living, while multicellular organisms are living.
c. Unicellular organisms are highly organized into tissues and organs, while multicellular organisms are simple.
d. Unicellular organisms do not need water, while multicellular organisms do need water.

Answers

Answer:

A.

Explanation:

From the name, "unicellular" you can deduce that "uni" means one, and vice versa for multicellular "multi".

The diagram below shows a type of virus called a bacteriophage. Select the name of the structure that the virus can use inside a host cell to produce new virus particles.

Answers

Answer:

It's the DNA..........

The structure that the virus can use inside a host cell to produce new virus particles is the DNA.

Bacteriophage which literally means bacteria eater is a type of virus that has the ability to infect bacteria.

Basically all bacteriophages consist of nucleic acid molecule (DNA) which is surrounded by a protein coat( the capsid head).

It also possess a tail sheath through which it transfers it's DNA into host cell.

Eventually, new bacteriophages assemble and burst out of the bacterium in a process called lysis.

Therefore, the structure that the virus can use inside a host cell to produce new virus particles is the DNA.

Learn more here:

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Which is NOT a reactant of photosynthesis Glucose Carbon Dioxide O Sunlight Water​

Answers

Answer:

Glucose

Explanation:

Glucose is not a reactant in the process of photosynthesis

glucose is the product

hope it helps

any good hypothesis idea?​

Answers

Answer:

is plant growth affected by temperature

Explanation:

What phase of mitosis is shown in the picture above?

A. Metaphase
B. Anaphase
C. Telephase
D. Prophase

Answers

Answer (A) metaphase

The phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.

What is Mitosis?

Mitosis may be defined as the type of cell division in which two daughter cells are formed from a parental cell with the exact number of chromosomes.

In metaphase, the chromosome usually lines up in one plane and forms an equatorial plate in which they are attached to the spindle fiber through their centromere.

Therefore, the phase of mitosis which is shown in the picture is Metaphase. Thus, the correct option is A.

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Why can’t we send cactuses to Mars a plant that doesn’t need much water in a dessert environment

Answers

Answer:

Sunlight levels

Explanation:

the cacti would not get enough sunlight, as it is not close enough. Also, it does need water every month or so.

Answer:

because there's no oxygen

A student made a model of an ecosystem inside a sealed plastic bottle. She
placed soil, rocks, water, plants, and animals inside the bottle. How is the
model unlike a natural ecosystem?
A. The model has more consumers than a natural ecosystem.
B. The model lacks the producers found in a natural ecosystem.
C. The model has more predators than a natural ecosystem.
D. The model lacks the diversity found in a natural ecosystem.

Answers

The model lacks the diversity found in a natural ecosystem.

What is a natural ecosystem?

A natural ecosystem is made up of living and non living parts. Energy is cycled in the system along the food chain from one organism to another.

Thus the model that is made by the student is unlike a natural ecosystem in the sense that the model lacks the diversity found in a natural ecosystem.

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Answer:

D. The model lacks the diversity found in a natural ecosystem.

Explanation:

What is the next step after a hypothesis

Answers

Answer:

test hypothesis..........

what is the difference between DNA of a stomach cell and the DNA of a brain cell?

Answers

Answer:

they have different functions

Explanation:

the stomach cells breakdown food and make up a certain tissue and take nutrients from the food you eat while the brain cell makes up your neurons and receptors

Since they both have the same genetic information stored in the same sequence of nucleotides, the DNA of a stomach cell and the DNA of a brain cell is practically identical. However, there may be functional distinctions between both kinds of cells depending on how some genes are expressed.

What happens during development?

Cells specialize during development and differentiate into various cell types with distinct functions. According to the requirements of the cell, specific genes are turned on or off as part of the differentiation process.

For instance, a brain cell may express genes that enable it to relay messages and make connections with other cells in the nervous system, whereas a stomach cell may express genes that allow it to produce digestive enzymes and absorb nutrients.

Therefore, the DNA of a stomach cell and the DNA of a brain cell is nearly identical since they both have the same genetic information stored in the same sequence of nucleotides.

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Which statement is not an example of how the use of resources has changed?

A. More products are made from recycled materials.
B. Cars still largely rely on oil.
C. Car companies have developed hybrid cars.
D. More wind farms are present in the United States.

Answers

Answer:

B. Cars still largely rely on oil.

Explanation:

Nowadays, most countries still use transportation systems that burn fossil fuels. An example of this may be private cars that consume gasoline, which derives from fossil fuels (oil). The use of fossil fuel transportation systems increases the emission of carbon dioxide (CO2), a major greenhouse gas involved in global warming. In the near future, it is expected that fossil fuel-based vehicles can be replaced by electric cars that use energy obtained from renewable sources (e.g., solar energy, wind energy, etc).

Answer:

B is not correct. I know cause I took the test here are the correct answers!

Car companies have developed hybrid cars.

More wind farms are present in the United States.

More products are made from recycled materials.

Explanation:

I just want you to get it right and get an A

The physical appearance or the way a gene looks is known as its.... A. Gene B.Allele C.Phenotype D.genotype

Answers

C. phenotype. Phenotype is the physical appearance. I use PH and PH to help me remember.

Which of these is NOT a reason to take photographs of a crime scene?
A to document the relative locations and positions of evidence
B some evidence can not be collected
C some evidence does not last / is temporary
D once evidence is used in court it is thrown away, and photographs allow CSI to study evidence years later

Answers

the answer would be d hope thos helps

The one that is not a reason to take photographs of a crime scene is once evidence is used in court it is thrown away, and photographs allow CSI to study evidence years later. The correct option is d.

What is an evidence?

They photograph and physically measure the scene, identify and collect forensic evidence, and keep the evidence in the proper chain of custody.

Fingerprints, footprints, blood and other bodily fluids, hairs, fibers, and fire debris are all gathered by crime scene investigators all are included.

While the most obvious goal of crime scene photography is to create a visual record of the crime scene and all of its relevant features, the best example of photography's role is the presentation of a logical story.

The one reason not to photograph a crime scene is that the evidence is used in court, it is discarded, and photographs allow CSI to study evidence years later.

Thus, the correct option is d.

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How can you explain the difference in number of mitochondria in these types of cells?

Answers

Answer:

Organs which need alot of energy to function properly have a greater number of mitochondria

Explanation:

Mitochondria are sites for respiratory enzymes which yield energy for the cells thus skeletal muscles which need alot of energy have more mitochondria than liver and liver due to doing more activities than skin has more mitochondria than the skin.

Answer:

Skeletal muscle cells have a very high amount of mitochondria as well as liver cells because they need high amounts of energy to carry out their functions, whereas skin cells don't need high amounts of energy to function.

I’ll mark you as brainliest

Answers

hypotonic solution is the answer

What are some of the roles of proteins in the human body?

Answers

Hopes this helps:

Answer:

Proteins has many roles in your body. It helps repair and build your body’s tissues, allows metabolic reactions take place and coordinates bodily functions. In addition to providing your body with a structural framework, proteins also maintain proper pH and fluid balance.

Spontaneous generation, the claim that living things can come from nonliving things, was an integral part of the theory of how life began and evolved for many years. In the 1600s, Francesco Redi was the first scientist to try to disprove spontaneous generation. Louis Pasteur, in 1859, finally disproved this claim with scientific evidence.

Answers

Answer:

The answer is Scientific thoeries are a culmination of many scientific investigations drawing together all current evidence.

Explanation:

How does Klinefelter syndrome caused by nondisjunction might have occurred??

Answers

Answer:

Cause. Klinefelter syndrome usually occurs as a random event during the formation of reproductive cells (eggs and sperm). An error in cell division called nondisjunction results in a reproductive cell with an abnormal number of chromosomes.

Explanation:

Which pair is correct?
a. G2 phase, preparation for mitosis
b. G1 phase, DNA replication
c. M phase, cell growth
d. S phase, cell division​

Answers

i think the answers A. G2 phase preparation for mitosis

A pair that is correct with respect to the cell cycle is the G2 phase, preparation for mitosis.

What do you mean by Cell cycle?

The Cell cycle may be defined as the entire sequence of events happening from the end of one nuclear division to the beginning of the next.

In the G1 phase of the cell cycle, the cell grows in size and synthesizes mRNA as well as proteins which are required for DNA synthesis.

M-phase governs the nuclear division (Karyokinesis), and cytoplasm division ( cytokinesis).

S-phase is known to double the amount of genetic content within the cell.

Therefore, a pair that is correct with respect to the cell cycle is the G2 phase, preparation for mitosis.

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help ASAP! Please! Ill mark brainliest

Answers

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Answer:

I think this is right

Explanation:

ocean warming evidence - melting of glaciers and ice caps, expansion of ocean volume, organisms more prone to illness or difficult for some species to make shells or growing difficulty in absorbing carbon dioxide

ocean acidification evidence - growing difficulty in absorbing carbon dioxide,

large concentration carbonic acid, organisms more prone to illness or difficult for some species to make shells

Explanation:

b

All of the following contribute to the severity of the effects of natural disasters during modern times except
A) choices in land use
B) evacuation and disaster relief plans
C dramatic increase in human populations
D predictability of natural disasters
E) people choosing to live in areas at high risk for hazards

Answers

Answer:

its B

Explanation:

i hope i help :)

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