Answers
Answer: Because The potential energy you build going up the hill can be released as kinetic energy — the energy of motion that takes you down the hill. Once you start cruising down that first hill, gravity takes over and all the built-up potential energy changes to kinetic energy. Gravity applies a constant downward force on the cars.Potential energy is the energy an object has as a result of its position. Potential energy is stored energy that has not yet been released. Gravitational potential energy is potential energy that results from an object's position in a gravitational field, and is equal to the object's weight multiplied by its height.
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Explanation:
Related Questions
The heart valve at the entrance to the aorta is the _________ valve.
bicuspid mitral
aortic semimitral
pulmonary semilunar
aortic semilunar
tricuspid
Answers
Answer:
tricuspid valve would be the entrance to the heart
PLEASE HELP DUE IN 5 MIN!!!
The materials of the crust have less mass than materials deeper in the earth.
True
False
Answers
What are two types of evidence that have helped biologists determine the ancestors of modern humans
Answers
Answer:
The evolution of modern humans consisted of fossils, direct observation, anatomy, and molecular biology.
New forms of drug-resistant bacteria can evolve quickly because
Answers
Answer:
The correct answer is - when a drug kills most of the bacteria, the ones left to breed are those that have a natural resistance to the drug.
Explanation:
When a drug or antibacterial medication used on the colony of a bacteria, the drug kills most of the specific bacteria from the host or culture, however, some bacteria remain to breed the next generation of bacteria as they had resistance to the particular drug.
The left bacteria breed and produce more resistant bacteria and after a few generations, a new form of drug-resistant bacteria develops. This follows the natural selection process and adapting the beneficial characteristic.
What is the importance of forest to the stability of ecosystems and why does deforestation still take place despite the negative impacts?
Answers
Answer:
Deforestation not only removes vegetation that is important for removing carbon dioxide from the air, but the act of clearing the forests also produces greenhouse gas emissions. The Food and Agriculture Organization of the United Nations says that deforestation is the second-leading cause of climate change.
Answer:
Forests help provide many essential resouces such as wood, leafs, bark, food, oxygen, and maybe water if their are lakes. For the second question, mostly human activity, and carbon dioxide happen to negatively affect the forests, people are the stimulis to deforestation.
Explanation:
Hope this helps!
what is natural selection?
Answers
Answer:
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
All animals need food, water, shelter, and space to live. which of these is difficult to find in a grassland habitat?
Answers
According to the scenario, it is difficult to find shelter in a grassland habitat. This is because grassland habitat generally consists of small grasses with a lack of space between them.
What is Habitat?Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection. It may also be characterized as the area where the basic demands of an organism are fulfilled like food, water, space, mating partner, etc.
Grasslands habitats are generally open and continuous, fairly flat areas of grass. They are often located between temperate forests at high latitudes and deserts at subtropical latitudes. In these habitats, the availability of shelter is very low because of an abundance of small grasses across the area which is insufficient to build a shelter.
Therefore, it is difficult to find shelter in a grassland habitat. This is because grassland habitat generally consists of small grasses with a lack of space between them.
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Directions Rearrange the words to make a meaningful sentence. Write your
answer on a separate sheet of paper.
stationary objects.
Static friction
occurs in
a self-regulating force.
frictional force is
The static
2.
Answers
Answer: im just doing challenges
Explanation:
Source: "trust me"
Static frictional force is the minimum force that must be overcome for one object to slide over another.
What is frictional force?Frictional force is the force the acts between the surfaces of two objects in contact which oppose the motion of one object over the other.
The minimum force that must be overcome for one object to slide over another is known as static frictional force.
If the applied force is greater than static frictional force, the object will start moving over the other.
Therefore, static frictional force is the minimum force that must be overcome for one object to slide over another.
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Describe the difference in pressure against your cheeks when they are full of air versus When You released it
Answers
Answer: When they were full of air, then the Pressure was the Highest 'cause of the larger force under the specified area as compared to when we released it. We decreased the area of our cheek, so pressure increased and air flows from the cheek (area of high pressure) to the atmosphere
Explanation:
A different couple has a child with O type blood who has a blood disorder and
needs regular transfusions. The mother is type B, and the father is type A. A
genetic counselor created a punnett square to show them the chance of having
another child with type O blood. The results are shown below:
What is the chance of the couple producing another child with type O blood? __%
Answers
Answer:
25%
Explanation:
A simple way to think of the punnett square is to think of it as divided into fourths. Only one of these fourths has o type blood. Therefore, there is only a 1/4 or 25% chance of them having another child with o type blood. Hope this helps :)
45 POINTS + BRAINLIEST IF CORRECT!!!
A fever is a response to which stimulus?
A) fear?
B) hunger?
C) illness?
D) tiredness?
HURRY PLZ
Answers
Answer:
there ya go
Explanation:
Three examples of traits that can be BOTH genetic and non-genetic. For example, having a sense of humor- you can inherit it, or you can learn it, so it's both. I need three other examples. Cannot include height or how fast someone can run.
Answers
Explanation:
ሠሁነሁጋነነሃዐሠዐቻነዘሀቻዐሀነጕñነነጌዕሃነጋዕሀዕ
Answer:
Sense of fashion\style, maybe music or artistic taste and preferences in food
Explanation: These are just my ideas but if you don't want to use them then that's fine.
define specialization in animals cells
Answers
is chromatin stored within chromosomes
Answers
Answer:
Explanation:
Chromatin is the material that makes up a chromosome that consists of DNA and protein. The major proteins in chromatin are proteins called histones. They act as packaging elements for the DNA.
The trait for hemophilia is sex-linked (on the X chromosome) and recessive. If a female who
is a carrier of hemophilia (XHXh) mates with a man with normal blood (XHY):What are the
chances of their daughters having hemophilia? What are the chances of their sons having
hemophilia?
Answers
XH Xh
XH XHXH XHXh
Y XHY XhY
So let’s break these down
XHXH = will be a daughter (XX) with normal blood (HH)
XHXh = will be a daughter (XX) who is a carrier for hemophilia (Hh)
XHY = will be a son (XY) with normal blood (H)
XhY = will be a son (XY) with hemophilia (h)
Because this disease is inherited on the X chromosome, male offspring tend to either have it or not. They can’t be carriers because they only have one X chromosome. So the chances of having a son with hemophilia will be 50% cause the boys have a 50% chance of inheriting hemophilia.
On the other hand, daughters will either have normal blood or be carriers in this situation. So to answer the question, the chance a daughter of this couple would have of inheriting hemophilia is 0%. This only changes if their father has hemophilia. Then they will either be a carrier or will have hemophilia.
Most of the functions of a cell membrane are performed by
a. proteins.
b. cholesterols.
c. phospholipids.
d.carbohydrates.
Answers
Answer:
Pretty sure the answer is, A.) Proteins
Explanation:
Why solid melt when heated
Answers
Answer:
When a solid is heated the particles gain energy and start to vibrate faster and faster. Further heating provides more energy until the particles start to break free of the structure. Although the particles are still loosely connected they are able to move around. At this point the solid is melting to form a liquid.
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Argentine ants are invasive ants found in California. They’re aggressive in nature and have a tendency to protect crop pests. In urban areas, Argentine ants don’t have many predators. Argentine ants and the native ant species were observed competing for nutrients in a particular ecosystem. What is a likely outcome of this competition? A. an increased number of Argentine ants B. an increased number of native ants C. no dependence between the populations of the two ant species D. an equal number of Argentine and native ants
Answers
Answer:
The answer is C.
Explanation:
No dependence between the populations of the two ant species.
Areas of Earth that absorb more carbon dioxide than they release
Answers
Answer:
When carbon dioxide CO2 is realised into the atmosphere from the burning of fossil fuel, approximately 50% remains in the atmosphere, while 25% is absorbed by land plants and trees, and 25% other is absorbed into the areas of the ocean.
using the data you collected , hypothesize what a cladogram would look like for the organisma in Data table 1, assuming the trout is on the first and lowest branch.
Answers
Answer:
assuming the trout is on the first and lowest branch
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answers
Answer:
B. Evidence from rock layers, fossils, and ice cores.
Explanation:
Right i believe
Answer:
Its the 4th one. I think. Its the 2nd or third but can't tell for sure. When I searched it, the result came as followed: "Plate tectonics shift the continents, raise mountains and move the ocean floor." So yeah. Hope this somewhat helps.
Explanation:
How will planting genetically modified crops affect chemical use on farms?
Increase chemical use
Decrease chemical use
No change to chemical use
No answer text provided.
Answers
The correct answer is
B. Decrease chemical use
To prepare for a crisis, you should consider
doing background checks on all your employees
O bringing in someone from your state restaurant association or an expert in the field to do training with your employees
0 making friends with the members of the media
consulting with an attorney
Answers
To prepare for a crisis, it is essential to take proactive measures and consider various strategies.
Create a comprehensive plan that outlines the steps to be taken in the event of a crisis. This plan should include roles and responsibilities, communication protocols, and strategies for mitigating and resolving the crisis.
Identify potential risks and vulnerabilities specific to your business. This can involve assessing internal processes, external factors, and industry-specific challenges. Understanding potential crises can help you prepare and minimize their impact.
Provide regular training sessions to your employees on crisis management and response. Educate them about potential crises they may face, proper protocols to follow, and how to handle challenging situations. Consider bringing in experts or professionals in the field to provide specialized training.
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Why does DNA look like a folded thread? HELP ME PLEASE!!!!
Answers
Answer:
During DNA packaging, long pieces of double-stranded DNA are tightly looped, coiled, and folded so that they fit easily within the cell. Eukaryotes accomplish this feat by wrapping their DNA around special proteins called histones, thereby compacting it enough to fit inside the nucleus
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Answers
Answer:
Its the 3 one
Answer:
I'm pretty sure the answer is that they are in the same biological classification
Explanation:
this is the answer because they evolved from a common ancestor.
7. Challenge yourself: You have already learned that mutation is one source of
variation in a population. Based on what you have just seen, what is a second
source of variation?
(I just need more information or explanation) please
Answers
Answer:
Natural selection would be the other source because organisms that have a beneficial trait will live, but organisms that do not have a beneficial trait might die. So the organsims that do survive will reproduce and pass on those traits to their offspring. Eventually all the organisms that do not have a beneficial trait will die out, leaving most of the population having that beneficial trait.
Which of the following best explains how viruses replicate?
Answers
Answer:During attachment and penetration, the virus attaches itself to a host cell and injects its genetic material into it. During uncoating, replication, and assembly, the viral DNA or RNA incorporates itself into the host cell's genetic material and induces it to replicate the viral genome.
Explanation:
Virus replication is the formation of biological viruses during the infection process in the target host cells. Viruses must first get into the cell before their replication can occur.
What do you mean by Viruses?Viruses may be defined as infectious microbes consisting of an element of nucleic acid surrounded by a protein coat.
There are six steps that govern the replication of a virus. They are given below:
Adsorption or attachment: This step attaches the virus particle to the plasma membrane of the host cell. Penetration: It is done by receptor-mediated endocytosis and the virus now enters into the cytoplasm of the cell.Uncoating: This step breaks the whole structure of the virus particle and allows its genetic material to reach inside the nucleus of the host cell.Viral Genome replication: This is done in the nucleus of the host cell.Maturation: It involves the growth of replicated virus particles.Release: It allows the replicated virus particle to move outside the host cell by bursting it.Therefore, it is well described above.
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Which describes the moth population after the industrial Revolution?
Answers
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What happens when cells do not
respond to the signals that
normally regulate their growth?
Answers
Answer:
Such cells, called cancer cells, divide uncontrollably and form masses of cells called tumors that can damage the surrounding tissues. ... Normal cells respond by not growing.
Answer:
Cancer cells do not respond to the signals that regulate the growth of most cells... What happens when cells do not respond to the signals that normally regulate their growth? Such cells, called cancer cells, divide uncontrollably and form masses of cells called tumors that can damage the surrounding tissues.
Hope this helps!!!
Have a great day!!! :)
Mention two important roles for hydrochloric acid in the stomach.
Answers
Answer: 1.)The gastric juice
2.) The acidic gastric
Explaining: The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins. The acidic gastric juice also kills bacteria. The mucus covers the stomach wall with a protective coating.
Hope this helps. :)