In the Tough Man Competition, very strong men are challenged to push or pull extremely large and heavy objects to test their strength. In
one such challenge, they were asked to push one of two rail cars, an engine car and a box car. The data tables show one man's results.
Look over the data table and answer the questions below.
Force Applied by the
Tough Man
Did it move the
engine car?
No
Did it move the
boxcar?
No
1000 Newtons
2000 Newtons
No
No
3000 Newtons
Yes
No
A Why couldn't the strong man move the box car with a force of 3000 Newtons?
Make sure to include Newton's 2nd Law in your explanation.
B. What could be done to move the boxcar?
C. Another student claims that during the competition, the sum of the forces on the boxcar was O N.
What evidence is the student using to make this claim? Be sure to explain your thinking.
o Tyne here to search
The strong man couldn't move the box car with a force of 3000 Newtons because this force is lesser than that the force (weight) acting on the car.
What is a force?A force can be defined as a push or pull of an object, which typically causes a change of motion (acceleration), especially due to the interaction of the object with another.
What is Newton's Second Law of Motion?Newton's Second Law of Motion states that the acceleration of an object or physical body is inversely proportional to its mass and directly proportional to the net force acting on it.
Thus, we can infer that the strong man couldn't move the box car with a force of 3000 Newtons because this force is lesser than that the force (weight) acting on the box car due to accleration of gravity.
In order to move this box car, the strong man must exert a force that is greater than the force (weight) acting on it.
The evidence that was used by the other student to make this claim is that for every action (force) there is an equal but opposite reaction (force) in accordance with Newton's Third Law of Motion. Thus, the sum of the forces (net force) that are acting on the box car woud be equal to zero (0) Newton.
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What is the symbol of the element with 28 protons in its nucleus?
what best describes the process of science?
Answer:
The process of science refers to the practices employed in science to uncover knowledge and interpret the meaning of those discoveries.
Based on the recommended levels issued by the EPA, water in which region has been subject to the best stewardship?
What enzyme is necessary to permanently link the digested foreign and plasmid DNA together to form the recombinant DNA molecule? How does this enzyme work?
Answer:
The enzyme that is needed to permanently link the digested foreign and plasmid DNA together to form the recombinant DNA molecule is DNA Ligase. it is often used to insert genes as well as other pieces of DNA into plasmids during the cloning of DNA.
what are the five main climate regions?
Answer:
The Five Main Climate Regions Are:-
tropical
dry
mild
continental
polar.
Answer:
The five main climate regions
tropical
dry
mild
continental
polar
Take a moment to click the start button on the simulation. Let it run for about 1 minute (the clock hand will complete 1 rotation) and then click stop. What did you notice coming from the plant?
a) sugar
b)bubbles
c)flowers
Bubbles are observed in the simulation after 1 minute due to the production of oxygen by plants during photosynthesis.
What is photosynthesis?Photosynthesis is the process by which green plants manufacturer their food from carbon dioxide and water using sunlight as am energy source.
In the process of photosynthesis, sugar is produce and oxygen is given off as a by-product.
Oxygen being a gas produces gas bubbles.
Therefore, in the simulation, bubbles are observed after 1 minute due to the production of oxygen by plants.
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Which of the following is a fossil? Select ALL answers that correctly describe an example of fossil.
1) old stone tools found in a cave
2) baby mammoth found in a glacier
3) petrified wood in the desert
4) outline of a fern found in a rock
5) evidence of an area that was once an ocean floor
Answer:
2) baby mammoth found in a glacier
3)petrified wood in the desert
4) outline of a fern found in a rock
5) evidence of an area that was once an ocean floor
Explanation:
Which factor listed below is NOT considered scientific evidence for global warming?
A. Data from retreating glaciers
B. Average increase in global temperatures
C. Increase in storm intensities
D. Increased rate of extinctions
Plants take in carbon dioxide from the atmosphere in a
process called:
The process of called photosynthesis.
An effective way to reduce the waste released into the environment would be to pass a law
OA. limiting the number of fish that can be caught in the river.
OB. requiring the company to release its wastewater into a local pond.
a
OC. requiring the factory to pump its water to a treatment plant.
OD. requiring people to avoid boating and fishing on the river.
Answer:
OC
Explanation:
In OA, by limiting the number of fish caught does not have any connection with the waste released. Its totally different idea.
In OB, pond is still a part of environment. Pond too have its own habitat and no mater if the company release less waste or too much waste, it still affect the environment.
In OD, by avoiding boating we dont have much to do. Still there is no correlation with redcing the waste released.
Oppopwhvrosvaofvskxie
Explanation:
what's the question though? lol
The process of cell division results in-
A: two identical daughter cells
B: two different daughters cells
C: unregulated cell growth
D: sister chromatic
PLEASE HELP!
I will give Brainliest!
An American man's risk of developing prostate cancer in his lifetime is about 16 percent. What is another way to say this?
Answer:Glandular Prostate Cancer is the answer.
Explanation:
In the prostate, adenocarcinoma is also called Glandular Prostate Cancer.
How could you take a protein with a known sequence of amino acids and use it to create an artificial gene?
It is possible to take a protein with a known sequence of amino acids and use it to create an artificial gene due to the genetic code.
What is the genetic code?The expression genetic code makes reference to certain triplets of nucleotides or codons that encode specific amino acids.
In consequence, it is possible to design a specific nucleotide sequence in order to synthesize a protein.
The genetic code shows how genetic information flows from DNA to RNA and then to protein.
Learn more about the genetic code here:
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a child pushes a toy car. The car rolls were short distance, but friction causes it to slow down and eventually stop. Is it Newton's first law of motion second law of motion or third law of motion
Answer:
3rd law
Explanation:
By Newton's third law, that car pushes on your car with the same force, but in the opposite direction. This force causes you to slow down.
4. To break apart a polymer into individual monomers, what process would you use?
Answer:
hydrolysis reactions
On the feed lot, what is the base of 70% to 90% of the feed for the beef animal?
compare the functions of lysosomes, vacuoles and peroxisomes
Answer:
lysosomes which are also referred to as killer bugs destroy viruses that enters the body, while the vacuole helps to maintain water balance and the peroxisomes helps in oxidation reaction and metabolism
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Joe When scientists analyze the fossil record, they find organisms that are similar to some organisms of today with noticeable changes. How does this help scientists to
interpret the past?
O A. It doesn't help them at all
B. It allows them to see how organisms have changed over time.
OC. It allows them to see how organisms have remained the same over time.
OD. It allows them to see that there is no relationship between the past and today.
Answer:
B
Explanation:
This allows them to see how organisms have changed over time by comparing fossils to current organisms, which can help scientists understand the organism more and why they lost or gained traits over time
Fossilization is:
A. Common
B. Inexplicable
C. A Myth
D. Rare
Answer:
Fossilization is: D. Rare
Explanation:
Answer:
D. Rare
Explanation:
Fossilization is rare because it takes very long to occur.
I hope it helps! Have a great day!
Nuggets~
Lewis is exercising and his muscles need oxygen. Which best describes how systems interact to bring his body into homeostasis? The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the muscular system. The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system. The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the skeletal system. The circulatory system brings oxygen to the respiratory system, which delivers oxygen to the skeletal system.
The respiratory system brings oxygen to the circulatory system, which delivers oxygen to the muscular system. Therefore, option (B) is correct.
What is respiratory system?The respiratory system is the biological system that facilitates the exchange of gases between an organism and its environment. It is responsible for the intake of oxygen, which is used for cellular respiration and energy production, and the removal of carbon dioxide, which is a waste product of cellular metabolism. The respiratory system includes the lungs, airways, and other structures involved in breathing.
The respiratory system is responsible for bringing oxygen into the body and removing carbon dioxide, while the circulatory system transports oxygen-rich blood from the lungs to the muscles, where it is needed for energy production. The muscular system then uses the oxygen to produce energy and power movement. These systems work together to ensure that Lewis's body is able to maintain a state of balance, or homeostasis, during exercise.
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Which geologic feature results from subduction? O A. Ocean trenches O B. Hot spots C. U-shaped valleys O D. Mid-ocean ridges
Answer:
A. ocean trenches
Explanation:
I just took that test. Sorry I know I'm late and this won't help.
Answer: Ocean Trenches: A
Explanation: I did the test. For anyone who is in need!
This chart shows the fur colors of a population of rabbits in Rocky Mountain National Park. If the higher elevations where snowfall is present more months of the year, what do you predict will ha that apply. A) Those with white fur will continue to decrease or even die out of the population B) Mottled fur is the dominant trait so it will continue to increase in the population The dominant and recessive alleles will not change so the population numbers will not change either D) If those with brown fur have less protection from visual predators, their numbers will start to decrease. E Those with white fur will have better camouflage and their numbers will slowly increase over the next 20 years
Adaptation are changes that enable organisms to better survive in their habitat. The population that will survive are those that have adaptations that enable them to avoid predation.
What is adaptation?The term adaptation refers to a situation in which an organism imbibes morphological or physiological changes with enables it to better survive in its habitat. A good eaxample of adaption is te reduction of the leaves of xerophytes to spines.
The question is incomplete but we do know that the rabbits that will better survive and increase in population are those whose have adaptations that enable them to avoid predation.
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2. If you could magnify the surface of a leaf to see it up close what type of structures, do you think you might see
that could help explain how gases get into and out of the leaves of the plant?
Answer:
The only way for gases to diffuse in and out of the leaf is though small openings on the underside of the leaf, the stomata. The stomata can open and close
Explanation:
Population density is a factor of which ecosystem factors?
a. number of organisms/density
b. time/area
c. number of organisms/area
d. time/density
Answer:
I think the answer is C number of organisms/ area
Two rabbits mate, each with one dominant gene
(F) for black and one recessive gene (f) for
white.
How many offspring out of every four will be
black? (complete a Punnett square to help
yourself)
A.three
B.four
C.two
D.one
Which part of the digestive system starts the breakdown of proteins?
A. Small intestine
B. Stomach
C. Large intestine
D. Esophagus
Answer: B
Answer:
B
Explanation:
This is because the stomach releases HCL acid which activates the inactive enzymes pro-renin, which is found in soluble milk for mammals, and pepsinogen which breaks down proteins into polypeptides hence, the beginning of protein digestion
state any two functions of the liver
state any two functions of the liver
1. A man treated his home with a pesticide that kills roaches. The first application of the
pesticide killed 92% of the roaches. Two months later he applied the pesticide to his home again, but
the second application killed only 65% of the roaches. What would best explain the decrease in the
effectiveness of the pesticide?
F The pesticide is effective only against mature roaches.
G Once roaches learned how to fight the pesticide, they taught others.
H The surviving roaches were naturally resistant to the pesticide, and that resistance was
inherited by their offspring.
J The pesticide caused some of the roaches' digestive systems to mutate and metabolize
the pesticide
Answer:
The surviving roached were naturally resistant to the pesticide, and that resistance was inherited by their offspring.