Newton's laws of motion are three physical laws that, together, laid the foundation for classical mechanics. They describe the relationship between a body and the forces acting upon it, and its motion in response to those forces. Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.The third law states that for every action (force) in nature there is an equal and opposite reaction.
Final answer:
Newton's three laws of motion describe how objects behave when forces act upon them. The first law states that objects at rest stay at rest and objects in motion continue in motion unless acted upon by an outside force. The second law relates force, mass, and acceleration. The third law states that for every action, there is an equal and opposite reaction.
Explanation:
Newtons's First Law:
Newton's first law states that every object will continue to be in a state of rest or move at a constant speed in a straight line unless it is compelled to change by an outside force. For example, if a book is sitting on a table, it will remain at rest until a force, such as someone pushing it, is applied to make it move.
Newton's Second Law:
Newton's second law states that the change of motion of a body is proportional to and in the direction of the force acting on it. This means that when a force is applied to an object, its acceleration is directly proportional to the force and inversely proportional to its mass. For example, if you push a small toy car with a large force, it will accelerate quickly because the mass of the car is small.
Newton's Third Law:
Newton's third law states that for every action, there is an equal and opposite reaction. This means that when one object exerts a force on another object, the second object exerts a force of equal magnitude but in the opposite direction on the first object. For example, when you push against a wall, the wall pushes back with an equal force, keeping you from falling through it.
consumer
multicelllar
no cell wall
cell membrane
small vacuoles
eukaryotic cells
This list of characteristics describes organisms in the ________ kingdom.
Which kingdom is completely composed of unicellular organisms that are prokaryotic?
Answer:
Eubacteria
Explanation:
Eubacteria is one of the three domains of life forms ( other two being Archaebacteria and Eukarya) that includes unicellular, prokaryotic organisms.
It means that the organisms are composed of single cell and are devoid of nucleus and membrane bound subcellular compartments ( cell organelles).
Answer:
Its animals
Explanation:
Which of the following statements about nuclear energy is true?
a. Nuclear energy cannot be contained nor controlled.
b. Nuclear energy is contained in nuclear bonds.
c. Nuclear energy is less efficient than other energy forms.
d. All of the above are true.
Please select the best answer from the choices provided
ОА
Answer:
The answer is b. Nuclear energy is contained in nuclear bonds.
Explanation:
As nuclear energy can be contained and controlled, it is more efficient and sometimes similar to other energy forms.
Nuclear energy is contained in nuclear bonds. Therefore, the correct statement is b.
Nuclear energy is the energy that is contained within the nucleus (core) of an atom. It is the energy that holds the protons and neutrons together in the atomic nucleus.This energy is released in nuclear reactions, such as nuclear fission (the splitting of atomic nuclei) or nuclear fusion (the merging of atomic nuclei). In nuclear fission, the energy is released when heavy atomic nuclei, such as uranium-235 or plutonium-239, split into smaller nuclei, along with the release of a significant amount of heat energy.The energy released from nuclear reactions is harnessed and used to generate electricity in nuclear power plants.Nuclear energy is highly efficient in terms of energy release. It is known for its high energy density, which means that a small amount of nuclear fuel can produce a large amount of energy.The other statements are not true:
a. Nuclear energy can be contained and controlled, as evidenced by the operation of nuclear power plants worldwide. Stringent safety measures and engineering controls are in place to ensure the safe and controlled use of nuclear energy.
c. Nuclear energy is not necessarily less efficient than other energy forms. In fact, nuclear energy is known for its high efficiency and low greenhouse gas emissions when compared to some other forms of energy generation, such as fossil fuels. However, there are safety and environmental considerations associated with nuclear energy that need to be managed carefully.
So, the correct answer is option b, as it accurately describes the nature of nuclear energy.
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Why did the petri dish get warm when hydrogen peroxide and liver were combined?
Answer: The bubbles will form due to the liberation of oxygen gas and white spots will develop on the liver.
Explanation:
The liver is a vital organ, its function is to metabolize the toxins into less harmful metabolites, that are excreted out of the body.
The catalase is one of the enzymes that participate in the metabolic activities of the liver. In the given condition, when hydrogen peroxide and liver were combined. The catalase enzyme breaks down the hydrogen peroxide into water and oxygen. In this reaction, the oxygen gas is liberated, in the form of bubbles and this reaction produces white colored foam which later leaves white spots on the liver.
Complete the punnett square using the cross Bb x Bb if Blue is dominant and red is recessive.....what color would heterozygous be? *Hint, think of what color blue and red make.
Answer:
Blue. Not purple because red is recessive and blue is dominant. there wouldnt be a new color!
Explanation:
B | b
|
BB | Bb
B |
|
_________________________
|
|
b Bb | bb
|
|
Answer:
It wouldn't make a mixture of both because its not codominant since one trait is dominant and another is recessive.
Explanation:
On a cool and brisk day, if you take a deep breath in and then exhale, you'll see a "fog" that forms as a result of your exhaled breath.
Which of the following products of cellular respiration does that "fog" contain?
Choose 1 answer:
A)
Oxygen and water
B)
Carbon dioxide and water
C)
Oxygen and carbon dioxide
D)
Carbon dioxide and glucose
Answer:
Carbon dioxide and water
Explanation:
During inhalation, you are breathing in air, with a specific need for oxygen. In addition, the food you take in will be broken down to glucose.
During exhalation, you are breathing out waste products of cellular respiration.
The substances you take in are reactants of cellular respiration that are transformed to a usable product of energy for the cell called ATP.
During this transformation, other by-products form, such as carbon dioxide and water. These are taken out of the body during exhalation (heat is also released).
In the given case, the following products of cellular respiration do that "fog" contain - B) Carbon dioxide and water.
Breathing or physical respiration involves inhalation of air that contains oxygen and exhalation involves the release of the products of the cellular respiration.
Inhalation involves the intake of oxygen through the mouth or nose into the lungs.From the lungs oxygen is transported to all the cells of the body to carry out cellular respirationcellular respiration releases carbon dioxide and water that moves out to the atmosphere by exhalation with heat.The fog contains carbon dioxide and water.Thus, In the given case, the following products of cellular respiration do that "fog" contain - B) Carbon dioxide and water.
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What are two causes of genetic change in a population?
Answer:
mutations or natural selection
Explanation:
Question 46 (1 point)
Respiratory acidosis is generally corrected by:
do not smokeloose weightavoid using sedating medicines use CPAPdevice if prescribed
Epinephrine, insulin, and auxins are all examples of that help produce feedback.
cofactors
enzymes
chemical transmitters
Answer: cofactors.
Explanation:
Epinephrine, insulin and auxins are cofactors.
Cofactors are non protein substance which activate enzymes activity by increasing the rate of chemical reaction of enzymes. They are organic molecules and they assist in enzyme activity. They exist in performing some reactions the enzymes cannot perform alone.
For example, insulin activate enzyme hexokinase which phosphorylate glucose.
Answer:
They are cemical transmitters.
The equation shows a chemical reaction using 64 grams of calcium, 162 grams of zinc carbonate, and 152 grams of calcium carbonate
calcium + zinc carbonate -- calcium carbonate + zinc
According to the law of conservation of matter, how much zinc is present in the product?
a 64 grams
b 74 grams
c 88 grams
d 98 grams
According to the Law of Conservation of Matter, the total mass before and after a chemical reaction should be equal. In this case, this suggests there would be 226 grams of zinc in the product, which does not match any of the given answer choices.
Explanation:According to the Law of Conservation of Matter, the mass of the reactants (inputs to the reaction) should equal the mass of the products (outputs of the reaction) in a chemical reaction. In this case, the masses of calcium, zinc carbonate, and calcium carbonate add up to 378 grams.
In other words, 64 grams (Calcium) + 162 grams (Zinc Carbonate) + 152 grams (Calcium Carbonate) = 378 grams. This means the mass of the products should also be 378 grams.
The mass of calcium carbonate is known to be 152 grams. Therefore, by subtracting this from the total, we can determine the mass of zinc. 378 grams - 152 grams = 226 grams. So, the Law of Conservation of Matter suggests that there should be 226 grams of zinc in the product. However, since none of those options are available, we can suggest an error in the given options.
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Describe the rules of probability and explain how they apply to genetics
1.) The Addition Rule: P(A or B) = P(A) + P(B) - P(A and B)
If A and B cannot occur together, then the third term is 0, and the rule reduces to P(A or B) = P(A) + P(B). For example, you can't flip a coin and have it come up both heads and tails on one toss.
2.) The Multiplication Rule: P(A and B) = P(A) * P(B|A) or P(B) * P(A|B)
If A and B are independent events, we can reduce the formula to P(A and B) = P(A) * P(B). The term independent refers to any event whose outcome is not affected by the outcome of another event. For instance, consider the second of two coin flips, which still has a .50 (50%) probability of landing heads, regardless of what came up on the first flip. What is the probability that, during the two coin flips, you come up with tails on the first flip and heads on the second flip.
Let's perform the calculations: P = P(tails) * P(heads) = (0.5) * (0.5) = 0.25
3.) The Complement Rule: P(not A) = 1 - P(A)
Do you see why the complement rule can also be thought of as the subtraction rule? This rule builds upon the mutually exclusive nature of P(A) and P(not A). These two events can never occur together, but one of them always has to occur. Therefore P(A) + P(not A) = 1. For example, if the weatherman says there is a 0.3 chance of rain tomorrow, let's see the chances of no rain.
P(no rain) = 1 - P(rain) = 1 - 0.3 = 0.7
The rules apply to genetics because they are used to reveal traits that are hidden in the genome by dominant alleles. Probability allows scientists and doctors to calculate the chance that offspring will inherit certain traits, including some genetic diseases.
Rules of probability -
Probability Rule One (For any event A, 0 ≤ P(A) ≤ 1)
Probability Rule Two (The sum of the probabilities of all possible outcomes is 1)
Probability Rule Three (The Complement Rule)
Probabilities Involving Multiple Events.
Probability Rule Four (Addition Rule for Disjoint Events)
Finding P(A and B) using Logic.
Explanation -
Probabilities predict the likelihood that certain events will occur such as the inheritance of a particular trait in an organism. ... It can also help to predict patterns of inheritance of traits and diseases in family lines.
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How can Charles act like a sociologist and be systematic in his study of how
people show emotions?
O A. By reading about a sad situation
O B. By studying the different ways that people react to emotional
situations
O C. By asking one person what makes her laugh
O D. By assuming that men do not cry because he has never seen his
father cry
Answer:
B-By studying the different ways that people react to emotional
Explanation:
Sociologists will study by observation.
By studying the different ways that people react to emotional situations
What instrument is used to measure earthquake waves?
Answer:
飒飒
Explanation:
阿萨说
Which statement must be true about the organism?
O It is multicellular.
O It displays radial symmetry.
O It has a backbone.
O It contains cells without nuclei.
Answer:
a. multicellular.
Explanation: did the quiz <3
Answer:
The correct answer is, A. It is multicellular.
Took the test! It's correct!
PLEASE PLEASE PLEASE! Katie is researching the evolution of dinosaurs, which thrived during the Triassic, Jurassic, and Cretaceous periods, and the evolution of mammals, which thrived in the periods that followed. To support certain claims about her research topic, Katie cites the graph shown below. Sort the claims according to whether the graph provides evidence to support them.
Answer: the graph supports: background extinctions, mass extinctions affected the evolution of mammals and dinosaurs
The graph does not support:both mammas and dinosaur revolved in the pattern of gradualism, dinosaurs evolved by adaptive radiation, and convolution affected the evolution of mammals and dinosaurs
Explanation:The graph only shows mass extinctions and background extinctions
Answer:
background extinctions, mass extinctions affected the evolution of mammals and dinosaurs
Explanation:
What is most likely to happen if we don't reduce the amount of harmful gases we put into the atmosphere?
a. The rate of global climate change might decelerate
b. Respiratory diseases in humans will increase
c. Many new animal and plant species will evolve
d. Fossil fuels will rapidly become more abundant
If we don't reduce the amount of harmful gases we put into the atmosphere then respiratory diseases in humans will increase.
Effects of harmful gases on respiratory system :Breathing in air pollutants can irritate your airways and may cause shortness of breath, coughing, sneezing, asthma episodes and chest pain.
It can be the reason of several lung diseases like bronchitis, emphysema etc.
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Which of the following hormones never enters the target cell? Hydrophilic hydrophobic hydrolytic or hydrocarbon
Answer:
Adrenaline, noradrenaline, and the peptide
Explanation:
Answer:
in target cells is testosterone able to initiate the phosphorylation are never found in the nucleus of a cell on both hydrophilic surfaces of the membrane, but not in the hydrophobic :D
Explanation:
How do muscles work in the human body? 2 Reasons with examples.
Answer:
Mucles work via two ways, Contraction and relaxation. Example, contracting your bicep and relaxing your tricep bends your arm. They work this way by connecting to bones, and when they contract or relax it pulls the bone with it. Example, contracting your quads pulls the bone on one side and tightens it against your joint, straightening it like pulling a rubber band tight makes it go straight
Explanation:
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The hawaiian islands are in the middle of a large tectonic plate with many volcanoes. The volcanoes are direct result of the tectonic plate
The Hawaiian islands were formed due to a mantle "hot spot" that leads to volcanic activity. This hot spot remains mostly stationary as Earth's plates move, generating a chain of volcanic islands over time. Volcanoes, in general, demonstrate how the Earth advances its cooling process.
Explanation:The Hawaiian islands, located in the middle of a large tectonic plate, are a direct result of a phenomenon known as a mantle "hot spot." This is an area far from plate boundaries where heat rises from the interior of Earth. This hot spot beneath Hawaii currently keeps three active volcanoes heated. As Earth's plates move over time, the hot spot stays mostly in place, thereby leading to the creation of a chain of volcanic islands over millions of years. The tallest Hawaiian volcanoes are among the largest individual mountains on Earth.
Volcanic activity signals locations where lava rises to the surface, such as in the mid-ocean ridges or in regions where continental plates collide. This activity provides us with an opportunity to examine materials from deep within our planet. Ultimately, such volcanoes and the movement of tectonic plates demonstrate how Earth cools down, serving as an efficient heat transfer process from the interior to the space.
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How many years and centimeters of time passed before life appeared on Earth?
There are many postulates and assumptions of how and when life originated on Earth. It is said that life originated about 3.7 billion years ago as microbes and is said to form from nucleic acid molecules.
It is said that 8.1 billion years and 8.1 meters of time has passed before life originated on Earth.
Life originated from the most primitive type of cells called prokaryotes they were basic cells that lived in harsh climatic conditions of the early Earth environment.
They were just organic compound aggregates and lacked many membranes and systems. The thing that made them sustain was their replicating genetic material enclosed in phospholipids.
Therefore, 8.1 meters and 8.1 billion years ago of time has passed before the appearance of life on the Earth.
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Chesapeake Bay Blue Crab Population
Page 2
What data from the two sources provide evidence that
Virginia's efforts to protect its watersheds have been
successful? Check all that apply.
The spawning-age female population increased in
2010.
Chesapeake Bay Blue Crab
Population
Millions of Crabs
The blue crab population plunged in 2013 and
2014.
The adult population of blue crabs greatly increased
after emergency-management measures were
implemented.
The number of adult female crabs has improved.
The number of spawning-age females remains
below the target level of 215 million and the
previous recent high attained in 2010.
Answer:
1,3,4
Explanation:
Answer:
2 and 3
Explanation:
Why was the development of proto-amphibians so significant to life on early earth?
A. We’re the first organisms with bilateral symmetry
B. We’re the first organisms to reproduce sexually
C. We’re the first organisms not confined to a water environment
D. Contributed huge amounts of oxygen to the atmosphere
Answer:
C
Explanation:
Proto-amphibians were not confined to water like their ancestors were.
Which of the following components of blood are removed during kidney filtration?
Answer:
The nephrons work through a two-step process: the glomerulus filters your blood, and the tubule returns needed substances to your blood and removes wastes.
A natural disaster destroyed a group of old buildings that contained toxic materials like lead paint Toxic materials contaminated the
soil and water sources near the destroyed buildings. Additionally, trees in a small area near the buildings were destroyed. Some of
the trees were over 75 years old and provided places for birds to build nests
What type of natural disaster most likely caused these problems?
A. hurricane
B. tornado
C. flood
D. volcanic eruption
Describe how the Ensatina salamanders spewed through California?
Answer:
As it expanded south, the population became split by the San Joaquin Valley in central California, forming two different groups. ... By the time the salamanders reached the southernmost part of California, the separation had caused the two groups to evolve enough differences that they had become reproductively isolated.
Explanation:
Which of the following is not true about zooxanthellae and coral.?
A)zooxanthellae is contained within the coral tissue.
B)zooxanthellae needs coral in order to perform photosynthesis.
C)zooxanthellae does not need coral to survive.
D)zooxanthellae provides coral with needed nutrients for survival and reef-building.
Answer:
C) zooxanthellae does not need coral to survive
Answer:
C.) zooxanthellae does not need coral to survive
Explanation:
got it right on edge
What cellular process releases ATP by breaking down glucose into lactate?
A. Glycolysis
B. Alcoholic fermentation
C. Aerobic respiration
D. Lactic acid fermentation
Lactic acid fermentation is the cellular process that releases ATP by breaking down glucose into lactate.
What is lactic acid fermentation?Lactic acid fermentation is a metabolic process by way in which glucose or different six-carbon sugars (additionally, disaccharides of six-carbon sugars, e.g. sucrose or lactose) are transformed into mobile energy and the metabolite lactate, that's lactic acid in solution.
What are the steps of lactic acid fermentation?Lactic acid fermentation has two steps: glycolysis and NADH regeneration. at some stage in glycolysis, one glucose molecule is converted to 2 pyruvate molecules, generating internet ATP and NADH.
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List 4 characteristics physical properties that distinguish the metallic elements from the non metallic elements.
1
2
3
4
Please dont rip me off by putting something random
Help Me Out With This Question Plz Thx!!!
Answer:the plants u are correct
Explanation: I remember it from last year
Which of the following statements best describes a
stem cell?
Stem cells can develop into other types of
cells.
Stem cells are used as backup for
reproduction,
Stem cells are responsible for creating
somatic cells.
Answer:
stem cells are used for backup reproduction.
Explanation:
because Stem cells provide new cells for the body as it grows, and replace specialised cells that are damaged or lost. They can divide over and over again to produce new cells. they can change into the other types of cell that make up the body.
The statement that best describes stem cell is- “Stem cells can develop into other types of cells”. Hence, option A is correct.
What are stem cells?Stem cells are the basic undifferentiated cells of the body that can be formed into any other type of cell as the requirement of the body. They can self-renew themselves indefinitely and give rise to differentiated cells of the body.
They are also called “master cells” or totipotent cells, as they have total potency to regenerate.
There are many sources of stem cells, such as:
Embryonic stem cells-These cells are extracted from the embryo when they are 3–5 days old in the blastocyst stage of embryonic development. They are pluripotent stem cells, which means they can form more stem cells or other types of cells.Adult stem cells-These cells are found in very small quantities in the adult tissues such as bone marrow, fat, brain tissue, blood vessels etc. In comparison to the embryonic stem cells, they have less ability to be give rise to other type of cell of the body. Perinatal stem cells-These cells are discovered by the researchers in the amniotic fluid as well as the umbilical cord and can give rise to many specialized cells of the body.Therefore, stem cells can be developed into other types of cells. Hence, option A is correct.
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Savannas and temperate grasslands are very similar biomes. The answer to which question would NOT be helpful when distinguishing between the two biomes? * 1 point Where is the biome located? Are there wet and dry seasons? Are there many herbivores living in the biome? Does the temperature vary throughout the year?
Answer: Are there many herbivores living in the biome ?
Explanation:
The Savannas and the temperate grasslands are very similar in nature. Their temperature and rainfall patterns are very much similar.
The biome is recognized by the temperature and amount of rainfall in the area. These two factors helps in determining the types of trees and types of animals found there.
Is there huge amount of rainfall, is there wet season thought out the year, is there dry season, less rain or more rain, average temperature are some of the useful questions to know about biome.