A ball moves in a circle at the end of a string, as shown.
An illustration of a circle with an arrowhead on the circle pointing clockwise. A black dot on the top left part of the circle is a dot with 4 vectors from it. Vector Z away from the center of the circle, vector Y toward the center of the circle, a vector tangent to the circle and clockwise labeled W and a vector labeled X along the circle and in the clockwise direction.
Which arrow represents the centripetal force responsible for this motion?
W
X
Y
Z
Answers
Answer:
The Answer is Y
Explanation:
Y is the arrow pointing towards the center of the circle and the centripetal force always goes toward the center of the circle.
The arrow that represents the centripetal force responsible for this motion is : Arrow Y
Direction of arrow YArrow Y points towards the center of the circle which is the same direction as the centripetal force acting on body whcih follows a curved path. centripetal force moves to the center of the circle ( i.e circular path ) of the object.
Hence we can conclude that the arrow that represents the centrpetal force responsible for this motion is Y
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Related Questions
12.
Which event occurs in prophase I of meiosis, but not prophase of mitosis?
a. Sister chromatids separate and move to opposite poles.
b. All chromosomes line up in a single row at the center of the cell.
c. Homologous pairs separate and move towards opposite poles of the cell.
d. Homologous chromosomes pair to form a tetrad, and may cross over.
Answers
Answer:
d
Explanation:
The tetrad is formed by synapsis of homologous chromosomes.
Compare and contrast the psychoanalytic theories of Freud and Erikson. How does Erikson’s theory explain the different stages of adulthood?
Answers
The similarity between the psychoanalytic theories of Freud and Erikson is that they both separate development into stages of a individual's life.
What is psychoanalytic theory?The psychoanalytic theory is the theory that teaches that the behaviour of an individual depends on their past experiences.
The two main psychologist that developed the psychoanalytic theory are Sigmund Freud and Erick Erickson.
The similarity between the psychoanalytic theories of Freud and Erikson is that they both separate development into stages of a individual's life.
The difference between the psychoanalytic theories of Freud and Erikson is that Sigmund Freud focused on the influence of the basic needs and biological forces while Erick Erickson focused on the social and environmental factors.
Erikson’s theory explain the different stages of adulthood from the age of 18 to 40 years as intimacy versus isolation.
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how do i tell if my bearded dragon has tail rot?
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5. Knowing that acid rain has a pH of 2-3, would you conclude that crop species with a narrow soil pH range are in trouble? Is acid rain a problem for plant species and crops?
Answers
Answer:
Yes
Explanation:
Unless the crops acidity range is that of the rain( which it wouldn't be) it would throw off the crops Ph balance and harm it.
Yes, crop species with a narrow soil pH range are potentially in trouble due to acid rain. Acid rain can have harmful effects on plant growth and productivity. The acidity of the rain can change the pH level of the soil, making it more acidic and less hospitable for plants.
What is acid rain?Acid rain is a type of rain or other precipitation that is unusually acidic and has elevated levels of hydrogen ions (low pH). It is caused by the release of sulfur dioxide (SO2) and nitrogen oxides (NOx) into the atmosphere, which then reacts with water vapor to form sulfuric acid and nitric acid.
These acids can fall back to the ground as acid rain or other forms of precipitation and can cause harm to plants, animals, and infrastructure. Acid rain can also contribute to soil and water pollution and can have negative impacts on human health.
Acidic soil can also release toxic substances, such as aluminum, which can further damage plant roots and reduce plant growth. In addition, acid rain can damage plant foliage directly, leading to reduced photosynthesis and reduced yields.
So, acid rain can be a significant problem for plant species and crops, particularly those with a narrow soil pH range.
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Describe the physiological process of hunger. Include a discussion about glucose, the hypothalamus, set point, ghrelin/leptin, and basal metabolic rate in your response. Then, describe the cultural and situational factors that influence hunger.
Answers
Answer:
Ghrelin is made in the stomach. It stimulates hunger by entering the brain and acting on the neurons in the hypothalamus to increase the activity of the hunger-causing nerve cells and reducing the activity of hunger-inhibiting cells. As the stomach empties, the release of ghrelin increases. Leptin is a protein produced by fat cells that is a hormone acting mainly in the regulation of appetite and fat storage. When your blood sugar levels are too low, your cells become starved for energy. At first, you might notice minor symptoms, such as hunger and headaches. However, if you don’t get your blood sugar levels up in time, you may be at risk for serious complications. Introducing more glucose into your body will help solve the problem of low blood sugar. Our hunger is influenced not only by our physical state but also by our memory of when we last ate and our expectation of when we should eat again, this is what the hypothalamus does. According to set point theory, after a time, your body will fight reduced calorie intake by sending signals (hunger indications) and slowing down your metabolism to attempt to bring you back to your normal set point. Basal Metabolic Rate is the number of calories required to keep your body functioning at rest. BMR is also known as your body's metabolism; therefore, any increase to your metabolic weight, such as exercise, will increase your BMR. Everyone's basal metabolic rate is different. Although we humans as a species prefer certain tastes (such as sweet and salty), we learn to satisfy those preferences with specific foods eaten in the context of our families and our culture. Some of our taste preferences, such as the avoidance of new foods or of foods that have made us ill, have survival value.
Explanation:
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Ghrelin is made in the stomach. It stimulates hunger by entering the brain and acting on the neurons in the hypothalamus to increase the activity of the hunger-causing nerve cells and reducing the activity of hunger-inhibiting cells.
Which cells are responsible for hunger?
Ghrelin is a multifaceted gut hormone which activates its receptor, growth hormone secretagogue receptor (GHS-R). Ghrelin's hallmark functions are its stimulatory effects on food intake, fat deposition and growth hormone release. Ghrelin is famously known as the “hunger hormone”.
Moreover, when food is scarce, some brain cells begin to devour themselves, activating an appetite-stimulating molecule in the process. A brain region called the hypothalamus contains neurons that regulate feeding in response to nutritional signals.
Therefore, within the hypothalamus are nerve cells that, when activated, produce the sensation of hunger. They do so by producing two proteins that cause hunger: neuropeptide Y (NPY) and agouti-related peptide (AGRP). Quite close to these nerve cells is another set of nerves that powerfully inhibit hunger.
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Meiosis reduces chromosome number and rearranges genetic information. Explain how reduction and rearrangement are accomplished in meiosis. Include at least 3 ways this happens.
Answers
Answer:
Following are the solution to the given question:
Explanation:
Reduction: Throughout Meiosis I, in mitosis, two pairs pair and separate and transfer towards opposites throughout prometaphase I. Before Metaphase ii they separate the chromosomes during Metaphase II. There's also no gene replication between meiotic division I and meiosis II, and the resultant genomes have lower genetic data (chromatids) than parent organisms.
Through meiosis, genomes are formed in homologous pairs, in mitosis I and II. The spontaneous arrangement of helices with both the plate is the dependent result. During prometaphase I and II, the genomes divide so each gamete earns one of every chromos form. In Interphase I, tetrad interaction occurs throughout chiasma, contributing to genetic diversity.
Choose the correct term for each definition or example.
cell engulfs molecules in cell "drinking": pinocytosis
molecules helped by protein; move insoluble molecules across plasma membrane:
molecules move in and out freely from high to low concentration:
cell engulfs microorganisms in cell "eating": phagocytosis
molecules "pumped" in or out from low to high concentration active transport
oxygen, carbon dioxide:
transports sodium, potassium:
transports glucose, amino acids:
Answers
Answer:
These are the following answers to the items:
Pinocytosis -cell engulfs molecules in cell "drinking"
Facilitated diffusion- molecules helped by protein; move insoluble molecules
across plasma membrane
Passive diffusion- molecules move in and out freely from high to low concentration
Phagocytosis- cell engulfs microorganisms in cell "eating"
Active transport- molecules "pumped" in or out from low to high concentration
Passive diffusion- oxygen, carbon dioxide
Active transport- transports sodium, potassium
Pinocytosis- transports glucose, amino acids
Explanation:
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Answer:
The person above me is correct besides the last one which is facilitated diffusion.
Where are the sides of a DNA molecule made of
Answers
Which of the following describes a boreal forest?
A biome occurring at high northern latitudes that is dominated by conifers that can withstand the long, cold winters
A blome in tropical regions where rain falls seasonally and broad-leaved trees dominate
A blome dominated by broad-leaved trees that flower and grow in warm seasons, Inen drop their leaves and become
dormant during cold winters
A biome dominated by a multilayered forest that occurs where warm temperatures and continual rains allow plant
growth year-round
Answers
Answer:
A
Explanation:
Why are many farmers encouraged to plant different types of crops on the same land throughout the year?
A - It provides more food for other countries.
B - It allows for more genetic variation in plants.
C - It prevents insects from destroying crops.
D - It helps to preserve the quality of the soil.
Answers
Answer:
d
Explanation:
it helps to preserve the quality of the soil
Answer:
Polyculture/poly cropping helps to preserve the quality of the soil.
Explanation:
Photosystem II is a phase of what type of reaction?
Calvin cycle
light-independent
light-dependent
electron transport
Answers
Answer:
Light Dependent
Explanation:
Photosystem II obtains replacement electrons from water molecules, resulting in their split into hydrogen ions (H+) and oxygen atoms. The oxygen atoms combine to form molecular oxygen (O2), which is released into the atmosphere. The hydrogen ions are released into the lumen.
Which is MOST likely needed when describing the change in position of an object?
Answers
Answer:
setting
Explanation:
because what it is is important to know
According to this, speed or motion is most likely needed when describing the change in position of an object.
What is motion?Motion is a change in the position of an object over time.
Motion is defined in terms of expulsion, distance, velocity, acceleration, time and speed.
There are three main types of motion which include circular, linear and oscillatory motion.
Thus, speed or motion is most likely needed when describing the change in position of an object.
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which of the following contributes to warmer temperatures on earth
A. more direct sunlight
B. longer days
C. all of the above
Answers
HELP !!!!!!!!
Which best describes the activity of autotrophs?
a.They use the energy harvested by, other photosynthesizers.
b. They use the energy harvested by heterotrophs.
c. They convert carbon dioxide and water, with the assistance of light into complex, energy-rich organic molecules, such as glucse.
d. They use sunlight to break down large complex, energy-rich organic molecules, such as glucose.
Answers
Answer:
I would go to option C
Explanation:
Autotrophs are organisms that can produce their own food, using materials from inorganic sources. Option C matches this definition and process.
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The correct answer about the activity of autotrophs is - c. They convert carbon dioxide and water, with the assistance of light into complex, energy-rich organic molecules, such as glucose.
Autotrophs are the organisms that make their food and produce energy on their own. These organisms are not dependable on any other organisms.
These organisms produce their food and energy mostly by the process called photosynthesis.They convert carbon dioxide and water into energy-rich organic molecules, known as glucose.this process takes place in the presence of sunlight.Thus, the correct answer is - option C.
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Answers
Answer:
A
Explanation:
Why are Zebra mussols located primarily in areas in the eastern United States rather than in the Western United States?
Answers
Answer:
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Which statements are true of all plants? Select four options.
Answers
All plants are multicellular, All plants are eukaryotic, All plants are autotrophic, and All plants need sunlight.
All plants are multicellular, All plants are eukaryotic, All plants are autotrophic, and All plants need sunlight are true about plants.
What are the characteristics of autotrophs?An autotroph or primary producer is an organism that produces complex organic compounds using carbon from simple substances such as carbon dioxide, generally using energy from light or inorganic chemical reactions.
Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms. Algae, which live in water and whose larger forms are known as seaweed, is autotrophic.
Examples of organisms that are autotrophic are plants and algae, and they have specialized cell organelles that have the ability to power the process of photosynthesis.
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What characteristics define bacteria?
Answers
Answer:
There are three notable common traits of bacteria, 1) lack of membrane-bound organelles, 2) unicellular and 3) small (usually microscopic) size. Not all prokaryotes are bacteria, some are archaea, which although they share common physicals features to bacteria, are ancestrally different from bacteria.Answer:
Bacteria are like eukaryotic cells in that they have cytoplasm, ribosomes, and a plasma membrane. Features that distinguish a bacterial cell from a eukaryotic cell include the circular DNA of the nucleoid, the lack of membrane-bound organelles, the cell wall of peptidoglycan, and flagella.
ATP photosynthesis and cellular respiration cycle
Answers
Answer:
what do you want to know??
What process is responsible for the growth and repair of human tissue
Answers
Answer:
healing process
Explanation:
its very easy its called the healing process put me as brailest
Answer:
The healing process
Explanation:
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Answers
Answer:
It is Line Graph
What causes plants to curve and grow upward if turned on their side?
Answers
Answer:
Gravitropism.
Explanation:
This is when a plant grows upwards against gravity.
It is also trying to grow towards light.
What energy source is used to make products, such as gasoline, plastics, and Vasoline?
A
Solar
B.
Coal
С
Hydroelectric
D
Petroleum
Answers
Answer:
hydroelectric I think
refer to the diagram provided.
this cell can conduct cellular respiration name a product that is used as a reactant in photosynthesis
Answers
Answer:
A.) CO2/carbon dioxide
Explanation:
I just did the test
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The building blocks of proteins are
.
A.) amino acid
B.)nucleotides
C.)base pairs
Answers
Answer:
A. Amino acid
Explanation:
The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha (central) carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain.
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which is a vestigial organ
whale flipper human appendix, snake tail
Answers
Answer: human appendix
Explanation:
vestigial means of an organ or part of the body, that has become functionless in the course of evolution
Why did the Elodea tube revert back to a red color after being exposed to light and not the control?
Answers
Answer:
Through investigation, students observe that an Elodea plant in water and exposed to light performs photosynthesis. By using an oxygen meter, students can identify an increase in the amount of dissolved oxygen in the water containing the Elodea plant. This is a product of photosynthesis.
Explanation:
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hurry up plz The study of history is best related to which other area of study?
geology
geometry
architecture
political science
Answers
Answer:
Political Science
HIIII NEED HELP ASAP!
Answers
What clues suggest that the river acts as a "freight train" carrying rock out through the Grand Canyon?
Answers
Answer:
today, in the deepest part of the Grand Canyon, the Colorado River flows past rocks that are 1.7 billion years old,flows, caused the widening of the canyon. Gathering speed and volume, piles of loose rock and soil that originate in a river's tributaries merge to form powerfully erosive debris flows, which are capable of dramatically affecting the surrounding terrain.
Explanation: