The way that Sheena has to set up her equation should be [tex]\frac{4}{3} \pi 12^{3}[/tex]
How to set up the equation.The ball is said to be 24 cm across the room.
Distance = 24cm
Radius is given as
r = d/2
= 24/2
= 12
Hence the formula for volume is
4/3πr³
Read more on volume here:
https://brainly.com/question/1972490
#SPJ6
What is the most common result when heat radiation is released from Earth?
A) The amount of carbon dioxide in the atmosphere increases.
B) The temperature of the atmosphere decreases.
C) Water vapor is produced in the atmosphere.
D) The heat causes an increase in precipitation.
E) Certain gases in the atmosphere absorb the heat.
Which statement correctly compares the pH of water to that of other substances?
a: The pH of water increases as its temperature increases, while other substances have a stable pH.
b: The pH of water is neutral; it is higher than the pH of acids and lower than pH of bases
c: Water contains more hydrogen ions than most other substances, giving it a higher pH.
d: Water is neutral and has a pH of 0; acids have a pH greater than 0 and bases have a pH less than 0
The right answer is B.
The abbreviation pH refers to the notion of hydrogen potential. The pH has since become an indicator of acid solutions - when the pH is below 7 - or alkaline solution - when the pH is above 7 - of a solution. A neutral medium displays a pH of 7. This is the case of pure water at 25 ° C.
What do these results suggest about the role of calcium in bones? is it important? why or why not?
Answer:
Role of calcium
1. It act as messenger in extracellular communication
2. it help in muscle contraction during locomotion and exercise.
3. it is a primary ion released in synapses of neuron to conduct nerve impulses.
4. It mineralizes the bones so that bones become stronger.
Absence of calcium in bones lead to diseases
For calcium deficiency word Hypocalcemia is used. It happened when calcium level drops in body results in low blood calcium level. This deficiency cause osteoporosis, teeth deformation and brain damage.
Why is e = hv important in pv cell considerations?
The equation E = hv is important in PV cell considerations because it explains how the energy of a photon is directly proportional to its frequency, which determines whether an electron can be knocked loose to contribute to the electrical current in a PV cell.
Explanation:The equation E = hv, where E represents the energy of a photon, h is Planck's constant, and v is the frequency of the photon, is crucial in understanding the functioning of photovoltaic (PV) cells. This relationship is important because it shows that the energy of the photons striking the PV cell is quantized and directly proportional to the frequency of the light. PV cells convert light energy into electrical energy, and the threshold energy level, known as the band gap, is pivotal. Silicon, commonly used in PV cells, has a band gap of 1.1 eV; a photon must have at least this much energy to knock an electron from the valence band to the conduction band. If these electrons reach the PV cell's junction, they are swept across and contribute to the electrical current, thereby generating power.
Efficiency in PV cells corresponds to the usual chance that an incoming photon will have sufficient energy to liberate an electron and ultimately lead to a current. Overvoltages are necessary in electrolytic processes because of the required additional driving force to overcome barriers, similar to those faced by electrons in a PV cell. Design considerations for PV cells focus on maximizing the conversion of photon energy to useful current by leveraging the E = hv relationship.
Select all that apply. If you wanted to eliminate carbohydrates from your diet, which of the following foods would you eliminate? butter apples honey fish carrots
Answer: apples honey carrots
Explanation:
A carbohydrate is a type of biomolecule which consist of hydrogen, carbon and oxygen atoms, usually with a hydrogen and oxygen atom are in the ratio of 2:1. These performs various functions in the living organisms. These are the component of cell wall of plants (cellulose) and also serve for the storage of energy (for example starch and glycogen) and they are the source of sugars like glucose and fructose.
Apples, honey and carrots are the source of carbohydrates they consists of sugars which are the forms of carbohydrates.
There is a correlation between algae height and the snout-to-vent length of a group of marine iguanas in the galapagos. what may be causing the change in size of marine iguanas on different islands?
A child who consumes adequate calories but insufficient amounts of protein is most at risk for developing
If herbivores eat 320 kg of plants, and the total plant biomass is 1,600 kg, the _______ efficiency is ________ %.
When you eat a candy bar and then decide to go for a walk, energy transformations take place. beginning with the food energy in the candy bar, describe the forms of energy used and the changes in energy that occur as you decide to walk and as you do the walking?
While eating it indicates the potential energy, later walking indicated kinetic energy and at last the step shows heat energy.
What is kinetic energy?Kinetic energy has been defined as the energy of the object that occurs due to the motion of the object. The total work that has to be needed by the body to starts the accelerating it by the help of given mass which has been supplied from the rest position and it has been mentioned velocity.
The energy body gets due to the process of acceleration by this the body will be able to maintain the kinetic energy of the body without changing its speed of the body. The energy which has been stored in the body or any object by the help of the particular position or the proper arrangement of the parts is known as potential energy.
There would be no effect of the outside environment on the potential energy that has been present inside the body. The kinetic energy decrease or increase with change in the velocity.
Therefore, While eating it indicates the potential energy, later walking indicated kinetic energy and at last the step shows heat energy.
Learn more about kinetic energy here:
https://brainly.com/question/12669551
#SPJ5
The condition of “capture” refers to the extreme closeness that can occur between what two entities?
The only United States floral organization that has a nationally recognized and certified floral-design designation is the
Answer:
American Institute of Floral Designers
Explanation:
The American Institute of Floral Designers is a non-profit organization established in 1965 in the USA. The objective of this institute is to stimulate, promote and help the creation of artistic works in the floral area of talented professionals who wish to be recognized as professionals. This is the only floral organization in the United States that has a nationally recognized and certified floral designation designation.
Which of the choices below is an erosional karst feature?
Label the parts of a cell membrane with the term that describes each part.
The cell membrane consists of several parts, including the phospholipid bilayer, integral proteins, peripheral proteins, glycoproteins, and cholesterol. These components work together to maintain the structure and function of the cell membrane.
Explanation:The cell membrane is composed of several parts that play important roles in the functioning of a cell. These include:
Phospholipid bilayer: This is the main structural component of the cell membrane. It consists of two layers of phospholipids arranged with their hydrophilic heads facing the external and internal environments and their hydrophobic tails facing each other.Integral proteins: These proteins are embedded within the phospholipid bilayer and can span the entire membrane. They are involved in various functions, such as transporting molecules across the membrane and cell signaling.Peripheral proteins: These proteins are bound to the outer or inner surface of the cell membrane. They play roles in cell signaling and maintaining the cell's shape.Glycoproteins: These are proteins with attached carbohydrate chains. They serve as recognition sites for other cells and molecules.Cholesterol: Cholesterol molecules are interspersed within the phospholipid bilayer and help maintain the fluidity and stability of the cell membrane.Learn more about Cell Membrane here:https://brainly.com/question/33722277
#SPJ6
The cell membrane is composed of a phospholipid bilayer, proteins, and carbohydrates, each with a specific function. These parts work together to regulate the passage of substances, maintain internal conditions, and facilitate cell communication.
Explanation:The cell membrane is composed of several parts, each with a specific function. Here are the main parts of a cell membrane:
Phospholipid bilayer: This is the main component of the cell membrane, consisting of two layers of phospholipids. The hydrophilic heads face outward, while the hydrophobic tails face inward, creating a barrier.Proteins: Embedded within the phospholipid bilayer, proteins have various roles, including transport of molecules, cell signaling, and structural support.Carbohydrates: Attached to some proteins, carbohydrates help cells recognize and communicate with each other.These parts work together to regulate the passage of substances in and out of the cell, maintain internal conditions, and facilitate cell communication.
Learn more about Cell Membrane Parts here:https://brainly.com/question/3171977
#SPJ6
Compare and contrast conduct disorders with personality disorders.
Conduct disorders are most often specific to kids and teens. This type of disorder leads to aggressive, violent, and destructive behaviors. Those diagnosed with a conduct disorder often have low self-esteem and little guilt or remorse for their behavior. On the other hand, personality disorders can occur in all ages. People with this disorder chronically have a difficult time in their relationships, are usually inflexible, and have difficulty adapting to change.
A flood kills most of a population of ants that live near a river. after the flood, the ant population increases, but its allele frequency is different. what type of effect is this?
a.genetic drift
b.mass extinction
c.bottleneck
d.founder
Answer:
The answer is: a. Genetic drifts originate from the error, in this case: c. Bottleneck.
Explanation:
Genetic drift, also known as allelic drift is an evolutionary force that acts together with natural selection by changing the allelic frequencies of species over time.
Bottleneck, is that a population undergoes a drastic reduction in its size, giving rise to a population with a high probability of suffering genetic drift. Any mutation in an individual will be amplified in the community when it grows again. Bottleneck events are also characterized by producing a reduction in the genetic diversity of species, due to the extinction of less frequent alleles.
The answer is: a. Genetic drifts originate from the error, in this case: c. Bottleneck.
The effect in which a flood changes the allele frequency of an ant population by killing most of them is known as the bottleneck effect, which is a form of genetic drift.
Explanation:The event described in the question, where a flood kills most of a population of ants and the remaining population has a different allele frequency, is known as the bottleneck effect. This type of effect is an example of genetic drift, which occurs when a large portion of a population is suddenly wiped out due to a disaster, such as a flood in this case.
The survivors' genetic structure becomes the genetic structure of the entire population, which may be very different from the pre-disaster population. The bottleneck effect reduces or eliminates alleles within a population as a result of the disaster killing individuals at random, for reasons unrelated to their traits.
Learn more about bottleneck effect here:https://brainly.com/question/32822839
#SPJ3
A person has 3 beers in an hour. how long does it normally take to process and eliminate this alcohol from the system?
Which animal has the most expensive mode of locomotion?
Give four examples of species (animal or plants) that are over utilized
Stress-induced eating is risky, as it increases fat in the __________, which is a predictor of heart disease in men and women.
Stress-induced eating increases fat in the abdomen, which is a predictor of heart disease in both men and women.
Explanation:Stress-induced eating can increase fat in the abdomen, which is a predictor of heart disease in both men and women. Excess fat accumulation, especially in the central abdomen region, puts individuals at greater risk of adverse health consequences, including heart disease. Visceral fat, which is located around the abdominal organs, contributes more to disease risk compared to fat in other areas of the body.
What is a vertical section through the body, dividing it into left and right, called? what is a vertical section through the body, dividing it into left and right, called? regional sagittal transverse frontal?
Why is the presence of only 2 adult female wolves of such concern to isle royale scientists?
Which of the following can be accurately said about climax communities?
The original climax community restoration may not always happen
During hemostasis, which process occurs first?
The salivation of dogs in pavlov’s experiments was significant because it ____.
Answer:
The salivation was significant because it demonstrated the ability to learn to anticipate future events as a survival advantage.
Explanation:
Pavlov wanted to clarify how conditioned reflexes were acquired. Dogs naturally salivate for food; Pavlov thus called the correlation between the unconditioned stimulus (food) and the unconditioned response (salivation) an unconditioned reflex. On the other hand, when a stimulus does not elicit any response, it is called a neutral stimulus (bell sound).
Pavlov's experiment was to associate an unconditioned stimulus (food) with the presentation of a neutral stimulus (bell sound).
After repeating this association of stimuli, he found that the dog learned to salivate before the stimulus that previously did not elicit any (neutral) response even in the absence of the unconditioned stimulus (food). This salivation was significant because it demonstrated the ability to learn to anticipate future events as a survival advantage.
Organisms that synthesize their own c-c molecules from single-carbon starting materials are named _____, while those that absorb preformed c-c compounds produced by other organisms are _____. organisms that synthesize their own c-c molecules from single-carbon starting materials are named _____, while those that absorb preformed c-c compounds produced by other organisms are _____. phototrophs; chemoorganotrophs chemoorganotrophs; heterotrophs autotrophs; chemoorganotrophs autotrophs; heterotrophs
Describe and give an example of unicellular colonial and multicellular organisms
The unicellular organisms are made of one cell and carry out the processes of life as a single cell and the multicellular organisms are made up of two or more cells that have specific functions to contribute to the life processes.
What are unicellular organisms?The organisms which are made up of single cell is known as unicellular organisms and in the unicellular organism all the life processes takes place in a single cell. Amoeba is known as an unicellular organism in which all the activities related to life carried out in a single cell.
Multicellular organisms are made up of eukaryotic cell and the eukaryotic cell is consist of different cell organelles to carry out different functions in the cell. The multicellular organisms perform different life process in different cells because they have specific cell for specific function.
Amoeba is known as an unicellular organism in which all the activities related to life carried out in a single cell. The example of multicellular organism is human beings and other animals as well plants are also came in the category of multicellular.
Therefore, The unicellular organisms are made of one cell and carry out the processes of life as a single cell and the multicellular organisms are made up of two or more cells that have specific functions to contribute to the life processes.
Learn more about unicellular organism here:
https://brainly.com/question/15299967
#SPJ2
________ cells and red blood cells rely on glucose for energy.
Which cause of a sexually transmitted disease is hardest to treat?
gonorrhea is caused by bacteria
Channels in the membrane of the neuron allow ions to flow between the inside and outside of the cell. of these, ___________ open only when certain electrical conditions are met.
Typically, roofs on houses in the tropics are white. What advantage does this provide to the inhabitants?
A) It would absorb most of the incoming visible light, thus keeping the inside of the house cooler.
B) The white or light-colored roof would have a low albedo, causing a lower inside temperature.
C) The white or light-colored roof would have a high albedo, causing a lower temperature inside.
D) The white or light-colored roof would be easier to keep clean, as the dirt would show up better.
E) The white or light-colored roof would allow any accumulated snow to slide off.
White roofs have a high albedo, reflecting sunlight and keeping houses cooler, which can save energy and could contribute to reducing global warming. Thus, the correct answer to the student's question is option (C).
The color of house roofs, particularly in the tropics, provides a functional benefit related to the concept of albedo. Albedo is the measure of how much light that hits a surface is reflected back without being absorbed. The correct answer to the question is C) The white or light-colored roof would have a high albedo, causing a lower temperature inside. This is because white or light-colored roofs reflect more of the sun's radiation, leading to a cooler interior compared to dark-colored surfaces, which absorb more radiation and increase the temperature.
Having roofs with a high albedo not only keeps individual houses cooler, reducing the need for air conditioning and thereby saving energy and lowering carbon dioxide emissions, but theoretically, if many roofs were reflecting more sunlight, it could even have a positive impact on combatting global warming. It is similar to wearing a white shirt on a hot day to keep cool. This principle is crucial for both energy efficiency in housing and climate mitigation strategies.