You spike a volleyball with a mass of 0.260 kg. The ball leaves your hand with a speed of 31.29 m/s.The ball has _ energy. Calculate it
Answers
Answer:
as you spike the volleyball, you transfer kinetic energy to the volleyball.
the formula for kinetic energy is as such: \(E_{k} = \frac{1}{2}(m)(v^{2} )\), where \(E_{k}\) is kinetic energy, m is mass (in kg) and v is velocity/speed in m/s
\(E_{k} = \frac{1}{2} (0.260) (31.29^{2} ) \\ = 127 Joules (3 s.f.)\)
Related Questions
Why does diversity increase as height above land increases
Answers
Biodiversity rises with altitude initially before falling with height beyond that. Up until it reaches a diversity peak at about 1 300 to 1 800 m.
The biodiversity increases at higher geographical locations because There are more hiding locations. They are better for crop growth. They frequently include more than one kind of habitat.As latitude or altitude change, so does biodiversity. As we descend from high to low elevations, the diversity increases (i.e., from poles to equator). While the environment is harsh and plants have a brief growing season in the temperate region, tropical rain forests provide year-round growth-friendly circumstances. This enables the emergence and expansion of several species. On a mountain, there is an initial increase in species diversity after which there is a decline in species variety as you go up in elevation. At higher elevations, temperature drops and seasonal variations increase, which significantly diminishes.learn more about biodiversity here: https://brainly.com/question/26110061
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A cablelike bundle of axons in the peripheral nervous system is called a ______.
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A cablelike bundle of axons in the peripheral nervous system is called a nerve.
In the peripheral nervous system a bundle of axons is called a nerve. In it is the part of central nervous system also called as tract . It comprises of a cord-like structure with multiple nerve fibers. The axon present inside is surrounded by a delicate endoneurium layer. Bundles of axons are called tracts in the central nervous system. In the peripheral nervous systems, bundles of axons are called nerves.
Hence ,A nerve is a cable-like structure of parallel axons each have three connective tissue wrappings and Nerves are organs of the PNS.
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what neuro-hormone is called the 'cuddle' hormone and primes you to strengthen close relationships?
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Oxytocin, also known as the "cuddle" hormone, is a neuro-hormone that encourages people to deepen their bonds with one another.
Due to its function in encouraging social bonding and affectionate behaviours, the neuro-hormone oxytocin is sometimes referred to as the "cuddle" hormone. Oxytocin is a hormone that is made in the brain and released by the pituitary gland. It has a role in a number of social and emotional functions. It is essential for encouraging attachment and fostering tight bonds. Oxytocin helps people experience love, trust, and connection when it is released in the brain, which promotes stronger emotional ties and social interactions. It promotes maternal-infant loving behaviours and has a strong impact on nursing. It also has a positive impact on maternal-infant bonding.
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What are two types of ecological pyramids?
Answers
Pyramid of Biomass
Autoregulation of the rate at which fluid passes from the glomerulus into the nephron tubule is through.
Answers
Changing the blood flow to the kidney allows for autoregulation of the speed at which fluid moves from the glomerulus into the nephron tubule.
Diffusion is the mechanism through which plasma devoid of protein travels from the glomerulus to the tubular nephron. Filtrate. The nephron is a structure that filters blood into a fluid called filtrate, much of which is then reabsorbed into the body.
Resorption is a carefully regulated process that is modified to keep blood volume, pressure, plasma osmolarity, and pH in a stable state. Renal ultrafiltration is the method through which glomerular filtration takes place. The driving force that pushes is the hydrostatic pressure in the glomerulus, which is the pressure put on by the blood artery itself.
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There are huge numbers of synapses in the spinal cord and the brain. Explain why this is so. Please help
Answers
Answer:
the central nervous system uses these synapses to transfers electrical impulses to the brain through the spinal cord.
Explanation:
For example a stimulus such as bright light is detected by receptor cells, this sends electrical impulses through the sensory neurons and passes them through synapses to relay neurons. The gap between these neurons are called synapses which use neurotransmitters (chemicals) to send the impulse over the gap. Lots of these synapses are in the spinal cord and brain so that more of these impulses can be received and therefore a motor neuron can send an impulse to an effector so a response can be issued, for this example the response would be closing the eyes so that the bright light doesn't damage the eyes- this is an example of a reflex action.
Sorry if this doesn't make sense or I've explained it wrong! I hope I've helped in the slightest!
There are huge number of synapses in the spinal cord and the brain as these synapses are used by the central nervous system to send electrical impulses to the brain via the spinal cord.
Why there are so much synapses in brain and spinal cord?To illustrate, when a stimulus like as strong light is received by receptor cells, electrical impulses are sent by sensory neurons and sent across synapses to relay neurons. Synapses are the gaps between these neurons that employ neurotransmitters (chemicals) to transfer the impulse across the gap. A lot of these synapses are in the spinal cord and brain so that more of these impulses can be received and thus a motor neuron can send an impulse to an effector so that a response can be issued, for example, closing the eyes so that the bright light does not damage the eyes- this is an example of a reflex action.
As a conclusion, as synapses are employed by the central nervous system to transfer electrical impulses to the brain via the spinal cord, we may assume that there are a large number of synapses in the spinal cord and brain.
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A 42-year-old female patient enters the clinic complaining of nausea, stomach cramps, and diarrhea. There is currently an outbreak of E. coli O157:H7 from consumption of raw sprouts in four states, which raises alarms. You collect a stool sample and send it to the lab for testing. To better separate commensal, non-STEC E. coli from the intestines with pathogenic E. coli O157:H7, you select Sorbitol-MacConkey agar to differentiate between the two. The results of the culture are shown. What is the proper interpretation of the experiment?
Answers
The Sorbitol-MacConkey agar has shown that there are several colonies of non-sorbitol fermenting bacteria growing on the plate. E. coli O157:H7 is typically a sorbitol non-fermenter and thus, these results suggest that the sample did not contain E. coli O157:H7.
In this case, the patient may have contracted the infection due to another cause.The Sorbitol-MacConkey agar is commonly used to differentiate between commensal non-STEC E. coli and pathogenic E. coli O157:H7. In this experiment, the Sorbitol-MacConkey agar test was used to differentiate between the two types of E. coli.The test was performed on a stool sample from a 42-year-old female patient who was experiencing symptoms of nausea, stomach cramps, and diarrhea. It was carried out in the context of an E. coli O157:H7 outbreak due to the consumption of raw sprouts in four states. The culture showed several colonies of non-sorbitol fermenting bacteria on the agar plate. Since E. coli O157:H7 is a sorbitol non-fermenter, these results suggest that the sample did not contain E. coli O157:H7.The patient's symptoms may have been caused by some other pathogen, or by a commensal non-STEC E. coli strain that did not cause disease. The Sorbitol-MacConkey agar test is one of several methods used to identify the presence of E. coli O157:H7 in clinical and environmental samples.
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THE FURRY TEST u will answer these questions and whoever gets brainliest is a furry :do u like to act cute ,do u like cosplay ,do u like to act like a cat when u were little .answer these truthfully
Answers
Answer:
Yes, Yes, YES
Explanation:
AHAHA im doomed
Answer:
I am a furry
Explanation:
1: I love to act cute, but when someone wishes bad stuff upon furries, my words are... not the greatest.
2: I've barely ever done cosplay, but I love it.
3: I thought I was the only one lol. When I was little I would go down on all fours and parkour across the furniture XD
4. I've been a furry for almost a full year now! I'm only going to get my fursuit when I stop growing tho
What causes hot spot volcanism?
a. Pyroclastic flows
b. Mantle convection
c. Mantle plumes
d. Subduction
Answers
Answer:
The correct answer is C.) Mantle Plumes
Explanation:
Took the test and got it correct! Hope this helps! Have a good day!
what is the difference between monomers, polymers, and macromolecules?
Answers
Answer:
Monomer is a word made of two parts, mono means one, and met means unit, so monomers are the building units of the polymers. Macromolecules are polymers, macromolecules in biology refers to the major categories of molecules that make the cell which are the proteins, carbohydrates, lipids and nucleic acids.
which single-celled protist is the most complex in terms of its cellular structures and their functions?
Aamoeba
8 euglena
OC. paramecium
D.volvox
Answers
Answer:
Paramecium
Explanation:
Paramecium is a single celled protist that contain complex structures than others because, it is a unicellular eukaryote that is found in water. It has hair like portrusion called cillia all around it's body use for movement. It is covered with pellicle. It's shape is like the sole of a shoe. It has contracticle or food vacuole for storage. It has cytoplasm, ectoplasm and endoplasm. It has nucleus which is consist of both macro and micronucleus. It has cytochrome. It has oral groove e.t.c.
A single-celled protist is the most complex in terms of its cellular structures and their functions - C. paramecium.
Paramecium is a single celled protist that contain complex structures than others. It belongs the ciliates which are considered as most complex single cell organisms.
a unicellular eukaryote that is found in water.It has nucleus which is consist of both macro and micronucleusIt has hair like protrusion called cilia all around it's body use for movement.It has contractile or food vacuole for storage.It shows osmoregulation means able to push water out of the cell.It has cytoplasm, ectoplasm and endoplasm with cytochrome.Thus, A single-celled protist is the most complex in terms of its cellular structures and their functions - C. paramecium.
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Which of the following could be a hypothesis for what causes a scarlet ibis to have red feathers?
A. The red feathers make the bird more beautiful to people.
B. A chemical in the bird's food produces the red coloring
C. What does the scarlet ibis eat?
D. The feathers are red because a wizard cursed the bird long ago.
Answers
Explanation: This is a testable statement formed through an inference
Please tell me what goes in the top blank, and if you could, tell me if I put the other stuff in the right blank!
Answers
Explanation:
I could but I would need to know the question is that you need to solves put the answer in the blanl
Which of the following correctly describes an age-related physiologic alteration that affects the pharmacokinetics of medications in elderly patients?
a. Increase in the body fluids (water).
b. Decline in creatinine clearance - kidney funtion, with an increase in age.
c. Altered gastrointestinal function leading to decrease drug absorption.
d. Decrease in the body fat
Answers
An age-related physiologic alteration that affects the pharmacokinetics of medications in elderly patients is decline in creatinine clearance - kidney function, with an increase in age
The absorption, distribution, and elimination of medications (via metabolism and excretion) are all aspects of the pharmacokinetic process. It is clear that pharmacological compounds must overcome several structural and metabolic obstacles. The blood concentration must be one of the factors determining the drug's concentration at the site of action. Only the drug in its free form can be controlled by the body. The best route of medication administration, the pharmaceutical form, and bioequivalence between various preparations are all influenced by drug bioavailability and the variables that may have an impact on it.
Three different types of variables, including those relating to the medicine, the patient, and the environment, can influence how bioavailable a medication is. A slower rate of absorption results in less pharmacological effects following a single oral dosage of the medication but has no impact on the drug's steady-state concentration or its effects. In contrast, Tmax is unaffected by the variables that reduce the quantity of medicine that is accessible in the body by impairing drug absorption. Due to the low steady-state concentration of the medication over long-term treatment, they might, nevertheless, result in therapeutic failure.
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10-15 Facts about cells
Answers
1. Animal cells do not have a cell wall.
The cell wall in plant cells helps give the cell shape and protection.
2. Mitochondria is the powerhouse of the cell.
The mitochondria gives directions to other organelles. They also create ATP, which gives energy to the cell.
3. The nucleus is the largest organelle in animal cells.
The largest organelle in plant cells is the vacuole, which usually takes up most of its volume. The vacuoles in animal cells are not as big.
4. In plant cells, chloroplast absorbs the sun for photosynthesis.
Chloroplast is very important for plant cells, as photosynthesis is a vital part of survival. It uses the light energy from the sun to create energy.
5. Cells are the smallest unit of life.
Not to be confused with atoms, which are the smallest unit of matter, cells are the smallest unit of life.
6. Humans are made of eukaryotic cells.
Eukaryotic cells are usually animal cells, while prokaryotic cells are usually things like bacteria. Humans are animals.
7. The ribosomes take directions from the nucleus for protein synthesis.
As stated above, the mitochondria will give directions to the organelles, one of them being the ribosomes. They will then use these directions to do protein synthesis.
8. Cells have both DNA and RNA.
DNA will most likely be found in the nucleus of a cell, while RNA will probably be located in the cytoplasm.
9. Prokaryotes do not have a nucleus, along with other organelles.
Prokaryotes do not have membrane-bound organelles, this includes the nucleus.
10. One job that lysosomes have is breaking down macromolecules.
While breaking down macromolecules is one job of lysosomes, they also do things like repair the cell membrane.
Noah is a 3-year-old boy recently diagnosed with epilepsy. He presented to his pediatric advanced practice registered nurse (APRN) in a primary care clinic with 2 weeks of increased seizure activity after a medication change. Symptoms also included a sudden increase in lethargy, ataxia, and drowsiness. Test results showed elevated ammonia, liver function, and an abnormal electroencephalogram reading. Which cell organelle is not working properly?
Answers
Answer:
Mitochondria
Explanation:
Mitochondrial diseases are a group of diseases caused by dysfunctional mitochondria, organelles that generate energy for the cell. Mitochondrial diseases are often caused by mutations, acquired, or inherited in the mitochondrial DNA or nuclear genes that code for respiratory chain complexes in the mitochondrion. Mitochondrial diseases involve multiple organs and show heterogeneous and unpredictable progression. The most common clinical presentation of mitochondrial diseases is encephalomyopathy, and epileptic seizures can frequently occur as a presenting sign of mitochondrial encephalopathy.
Selena learns that, as specialized cells mature, certain organelles increase in
quantity while other organelles may disappear. She also learns that muscle cells
require large quantities of energy in the form of ATP. Based on this, she can predict
that muscle cells would contain an unusually high number of
A Lysosomes
B Ribosomes
C Rough endoplasmic reticulum
D Mitochondria
Answers
Explanation:
rewatch the video your teacher provided on edunity
Answer:
mitochondria
Explanation:
muscles need energy for contraction and lots of mitochondria is what helps them do this
How do you properly heat a test tube in the lab?
Answers
• Hold the test tube at an angle. Point the test tube away from yourself and all other people. Heat the test tube over the bunsen burner gently from the top of the substance being heated, and always.
hope this helps x
Answer:
Hold the test tube at an angle. point the test tube away from yourself and all other people. Heat the test tube gently from the top of the substance being heated, and always wear safety goggles.
Explanation: Can you plz accept my invite to be your friend I am 15 in high school 10th grade Colgan High School, You are beautiful a compliment
What is the ancestor to all modern-day plants?
A.algae
B.fungi
C.animal-like protists
D.all of these
Answers
Floral design: what would happen if a wholesaler stored a shipping crate of gladioli horizontally? What would you suggest that the wholesaler do?
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The gladioli would worsen it's quality if held horizontally, therefore, the wholesaler should keep them upright while storage and transportation.
Gladioli, like the majority of spike-type flowers, are extremely sensitive to the pull of gravity and constantly have a tendency to grow upward, especially in warm climates. This may cause the upper portion of the spike to permanently distort, lowering the quality of the flowers as a result. Gladioli should be kept upright during the postharvest operations to prevent this result. Only when the flowers are kept at a low temperature during storage and transit may this restriction be loosened.
Gladiolus quality criteria include stem strength and straightness, absence of damage and disease, and maturity. Hang the corms in a cool, dry, well-ventilated area by placing them in mesh bags or old nylon stockings. 35 to 45 degrees Fahrenheit should be the storage temperature range.
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are there any other ways identical twins can be different genetically from each other
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Yes, despite having identical DNA sequences, there can still be genetic differences between identical twins.
CNVs are structural variations in the genome where certain regions of DNA are duplicated or deleted. These variations can occur spontaneously during development and can result in differences in gene dosage between twins.
CNVs can contribute to variations in physical traits, susceptibility to diseases, and other phenotypic differences.
Somatic mutations are changes in DNA that occur after fertilization during the development of the embryo. These mutations can arise randomly and affect specific cells or tissues, leading to genetic differences between twins.
Somatic mutations can accumulate over time and contribute to differences in traits and disease susceptibility.
Epigenetic modifications are chemical changes to DNA and its associated proteins that can influence gene expression without altering the DNA sequence itself. These modifications, including DNA methylation and histone modifications, can vary between individuals and affect gene activity.
Environmental factors and lifestyle choices can also impact epigenetic modifications. Identical twins may have differences in their epigenetic profiles, which can result in variations in gene expression and phenotypic outcomes.
Although identical twins have the same DNA sequence, variations in gene expression can occur. Gene expression refers to the process by which information from genes is used to produce functional gene products, such as proteins.
Factors like cellular microenvironments, hormone levels, and environmental exposures can influence gene expression patterns and lead to differences between twins.
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in his groundbreaking publication of 1859, charles darwin dealt with the natural world and developed his theory of evolution by means of natural selection. that book is entitled:
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That book is entitled "On the Origin of Species by Means of Natural Selection."
Darwin's book, On the Origin of Species by Means of Natural Selection, presented the first comprehensive account of the theory of evolution. It described how species evolved over time through a process called natural selection, in which certain inherited traits enabled an organism to survive and reproduce better than others.
Darwin was inspired by the work of other scientists, particularly geologist Charles Lyell, who proposed that the earth was much older than previously believed. Darwin realized that this allowed for a much longer period of time for species to evolve and develop new traits. He also observed the diversity of species on the Galapagos Islands and how they had adapted to their specific environments.
Darwin's theory of evolution by natural selection was initially met with skepticism, but over time it became widely accepted by the scientific community. It has had a profound impact on our understanding of biology and the natural world.
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Children inherit half of their genes from parents. Explain Why?
Answers
Answer:
This is because the two parents share one or more common ancestors and so carry some of the same genetic material. If both partners carry the same inherited gene change, their children are more likely to have a genetic condition.
Answer:
yes
Explanation:
The chromosomes in cells line up in pairs and exchange bits of genetic material before forming an egg or sperm cell. Each mature egg and sperm then has its own specific combination of genes, which means children will inherit a slightly different set of DNA from each parent.
- How does carbon get back into the environment from the food we eat?
Answers
Answer:
by breathing
Explanation:
Answer:
The Carbon Cycle
Explanation:
Decaying organisms contain carbon, and that seeps into the soil- It can get into plants, which animals and we eat. When we die, we put carbon into the soil, and when we breathe, we exhale carbon dioxide which is a form of carbon. Animal respiration, photosynthesis, and root respiration are also part of the carbon cycle.
In the early 1900s toxic substances such as ammonia (NH3) and sulfur dioxide (SO2) were used in
1
refrigerators as
Answers
Answer:
propellants
Explanation:
they were used to make aerosols sprays in aluminum spray cans
1.
How many different kinds of coin were available in old Italy?
Answers
Around 90 different coin kinds were in use in Italy in 1859, creating a financial mess that was only resolved after the country was united. Consequently, establishing a currency union for the emerging business region was of utmost importance.
Italy's previous currency was the lira.The florin served as the benchmark for coinage throughout Europe and evolved into the preferred trade coin that was more valuable than silver. By introducing their own currencies, many European countries started to adopt the florin as their model. The Italian lira replaced the florin as the country's currency in the sixteenth century.
What currency do you believe to be the oldest?Stator of Lydia The World's Oldest Coin. Various academics contend that the Lydian stater is regarded as the oldest coin remaining in existence. These ancient coins, known as electrum, were produced in the country of Lydia, in what is now modern day Turkey, circa 600 BCE.
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A 36-year old woman is evaluated for difficulty swallowing and heartburn. She complains of discoloration of her fingers in the weather. She also reports development of bumps on her knees and fingers that leak white liquid following minor injuries. Physical exam reveals thickened skin on the dorsum of her hands, along with multiple, small dilated capillaries on her face and lips. X-ray of her hand demonstrates scattered soft tissue calcifications. What is the most likely etiology of this woman's current symptoms?
Answers
The most likely etiology of this woman's current symptoms is systemic sclerosis, also known as scleroderma.
Systemic sclerosis is a chronic autoimmune connective tissue disorder that affects multiple organs, including the skin, gastrointestinal tract, and blood vessels. The symptoms described, such as difficulty swallowing, heartburn, discoloration of fingers in the cold (Raynaud's phenomenon), bumps on knees and fingers with white liquid discharge (digital ulcers), thickened skin on the hands (sclerodactyly), and dilated capillaries on the face and lips (telangiectasias), are characteristic features of systemic sclerosis.
The presence of scattered soft tissue calcifications on X-ray further supports the diagnosis, as calcinosis is a common complication of systemic sclerosis. Systemic sclerosis is a progressive disease with no cure, but treatment focuses on managing symptoms and preventing complications. Early recognition and appropriate management are crucial in improving the quality of life for individuals with systemic sclerosis.
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Can producers function without sunlight? Why or why not?
Answers
Answer:
No because the producers function is to produce food for itself and other organisms through photosynthesis. Without sunlight, photosynthesis is impossible. Dont know why it is bold srry.
When a person is suddenly cut by a sharp object, a nervous impulse is sent along a sensory neuron to the spinal cord. The impulse is immediately transmitted through motor neurons to produce a response. Which of the following correctly identifies and describes this response?
A.It is a leamed response that does not occur in infants and small children
B. It is a reflex response that causes various muscles to contract in order to move away from the object.
C.It is a conditioned response that occurs only to prevent injury!
D. It is a voluntary response that is initiated only after the impulse has been caried to the relevant area of the brain
Answers
Answer:
B. It is a reflex response that causes various muscles to contract in order to move away from the object.
Explanation:
John is completing an internship in biology at the Clearwater Marine Aquarium. While interning there, he monitors an outdoor phytoplankton exhibit to observe how populations of phytoplankton change when exposed to light. It is observed that each year the phytoplankton population within the exhibit increases when it was exposed to high amounts of sunlight. A new apartment complex that overlooks the aquarium is being built. The phytoplankton that were receiving 8-12 hours of sunlight each day will now have between 2-5 hours of sunlight. How will the phytoplankton be affected by the new apartment building?
Answers
Answer:A
Explanation:
It will decrease over time