A battery with emf ε is connected in series with an inductance L and a resistance R.
(a) Assuming the current has reached steady state when it is at 99% of its maximum value, how long does it take to reach steady state, assuming the initial current is zero? (Use any variable or symbol stated above as necessary. To represent, use E.) t99% = (b) If an emergency power circuit needs to reach steady state within 2.4 ms of turning on and the circuit has a total resistance of 68 Ω, what values of the total inductance of the circuit are needed to satisfy the requirement? (Give the maximum value.)
_____H
Answers
The answer is:
a) t = 4.6π
b) L = 0.0187 H
Electrical resistance is the hindrance to the flow of charge through an electric circuit.
Given is the current flowing in an R-L series circuit.
where is the provided time constant.
L is for inductance, and R stands for resistance.
It would take t = 4.6 seconds to reach the steady state, assuming the current has reached steady state when it is at 99% of its highest value.
(b) What values of the total inductance of the circuit are required to meet the criteria if an emergency power circuit must reach steady state within 1.2 ms after turning on and the circuit has a total resistance of 72.
In order to meet the criterion, an inductance of 0.0187 H is required.
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Related Questions
The lungs are _______.
1 connected by the mediastinum
2divided into nine lobes
3separated by the mediastinum
4divided into seven lobes
Answers
The lungs are divided into seven lobes. Thus, the correct option is D.
What is the function of lungs?Lungs provides your body's cells with oxygen. When exhale, waste gases from body, including carbon dioxide, are removed. shields airways from irritants and dangerous chemicals.
Each lung has an oblique fissure, with a transverse fissure further dividing the right lung. The superior and inferior lobes of the left lung are divided by an oblique fissure. The superior, middle, and inferior lobes of the lungs are separated by an oblique and horizontal fissure. As a result, the left lung has two lobes whereas the right has three.
A lobar bronchus supplies each lobe. Bronchopulmonary segments that are supplied by segmental bronchi divide the lobes.
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Which of the following is NOT a function of the nervous system?
a. receives information about your body
c. signals a response to stimuli
b. maintains homeostasis
d all of these are nervous system functions
Answers
Answer:
d
Explanation:
all of these are nervous system function
Answer:
D
Explanation:
All of these are nervous system functions, your nervous system controls your whole body. Since your nervous system is comprised of your brain and other things like the brain stem, everything in your body you can imagine is from the nervous system.
In his study of pea plants , Gregor Mendel used which method to produce offspring?
Answers
Answer:
hope it helped
Explanation:
Gregor Mendel is known for his study on pea plants about the inheritance.
To understand the inheritance, he had experimented with pea plants.
He had performed a cross-pollination production method between two different plants of the pea and prevented self-pollination in it.
Matching a person's appearance to a DNA sample involves what technique?
Answers
Answer:
DNA Phenotyping
Explanation:
This is kind of similar to DNA Profiling only DNA Phenotyping deals with Forensics this helps track down any suspects and identifying a victim this can also help people look at a person's ancestry history.
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DNA phenotyping is used to match the appearance of a person with the sample of DNA.
What is DNA phenotyping?The phenotype of an organism is find with the help of genetic information collected from the sequences of DNA by DNA phenotyping. It is mainly used to determine the physical appearance of the person that comes out to be a great help in forensics.
Thus, the DNA phenotyping is used to match the appearance of the person with the sample of DNA.
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The conformational change in an enzyme after the substrate is bound that allows the chemical reaction to proceed, can be explained by
A.induced fit
B. transition
C. fit and fine
D. Pasteur
Answers
Circle in red the two genes that are closest together
Answers
A flower with alleles for both blue
and white has light blue petals as
both alleles are dominant. This
blending of colors is an example
of...
A. incomplete dominance.
B. codominance.
C. multiple alleles.
Answers
Answer:
A. Incomplete Dominance
Explanation:
In flowers, incomplete dominance is a presentation of an "in between" color. In this case, if the parental flowers can be either blue or white, but produce light blue offspring... that would be incomplete dominance.
What are the characteristic of solute plssss po
Answers
Solute is the substance that dissolves
Solute is a minor componentSolvent is a major componentSolutions is a mixture where the solute is uniformly distributed in the solvent.Solution is homogeneous mixture that contains particles the size of a typical ion or small molecule.The mass of the solute dissolved per unit volume of solvent is called ConcentrationSolubility is The concentration of a saturated solutionSolutes lower the freezing point and raise the boiling point of a solvent.Saturated Solution is a solution in which no more solid can be dissolvedUnsaturated Solution is solution in which more solid can be dissolvedPrecipitate is a solid that crystallizes out of a saturated solution as it is cooled.To know more about solute visit :
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A plant's water supply is now deeper in the ground.
What process allows the roots to grow longer?
A. interphase
B. photosynthesis
C. mitosis
D. meiosis
Answers
1. What is a biogeochemical cycle?
2. What drives, or powers, the water cycle?
3. What causes water to condense and form clouds?
Answers
Answer:
1. In ecology and Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through biotic and abiotic compartments of Earth.
2. The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. Rising vapor cools and condenses into clouds.
3. Heated by sunshine, the ground heats the air just above it. That warmed air starts to rise because, when warm, it is lighter and less dense than the air around it. As it rises, its pressure and temperature drop causing water vapor to condense. ... The air cools as it rises, and eventually clouds form.
Explanation:
Histoplasmosis is a disease of
Answers
Answer:
Histoplasmosis is an infection caused by a fungus called Histoplasma. The fungus lives in the environment, particularly in soil that contains large amounts of bird or bat droppings.Got it from the internet.
Which best defines soil? (1 point)
Responses
Soil is made up of minerals, air, water, and humus.
Soil is made up of minerals, air, water, and humus.
Soil is made of rock and dirt.
Soil is made of rock and dirt.
Soil is made of natural materials that were never living.
Soil is made of natural materials that were never living.
The soil is dark and brown.
will give brainliest
Answers
Soil is best defined as a mixture of minerals, air, water, and humus. So the right option is Soil is made up of minerals, air, water, and humus.
Soil is a mixture of minerals, air, water, and organic matter that provides the necessary nutrients and physical support for plants to grow. It is a living ecosystem that is home to millions of microorganisms, fungi, and other organisms that contribute to its health and productivity.
The minerals in soil come from the breakdown of rocks and other geological materials. Air and water are essential for soil structure and nutrient transport. Humus, or organic matter, is made up of dead plant and animal material that decomposes over time, adding nutrients and improving soil structure.
Soil is an important resource that plays a crucial role in agriculture, forestry, and environmental sustainability. It provides a habitat for many plant and animal species, helps regulate the Earth's climate, and plays a role in the carbon cycle.
However, soil can be degraded through erosion, overuse, and pollution. It is important to protect and manage soil resources to ensure their continued health and productivity for future generations.
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how does too much fishing in an area affect its ecosystem
Answers
For the cloning lab, you processed two tubes, one with the plasmid (+pGLO), one without the plasmid (-pGLO). The solutions were then plated on the LB, LB/amp and LB/amp/ara plates. The (+pGLO) on LB/amp served as a(an)
Answers
In the cloning lab, one processed two tubes, one with the plasmid (+pGLO) and one without the plasmid (-pGLO), and the (+pGLO) on LB/amp served as the experimental plate where the gene glows ,so the option c is correct.
What is the significance of the (+pGLO) tube?The +pGLO tube contains bacteria transformed with the pGLO plasmid that have a gene for antibiotic resistance and a gene for fluorescence, so the bacteria on the LB/amp/ara plate serve as a control, and based on the control, sensitive and resistant bacteria are differentiated.
Hence, in the cloning lab, one processed two tubes, one with the plasmid (+pGLO) and one without the plasmid (-pGLO), and the (+pGLO) on LB/amp served as the experimental plate where the gene glows ,so the option c is correct.
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The question is incomplete, the complete question is the below,
For the cloning lab, you processed two tubes, one with the plasmid (+pGLO), one without the plasmid (-pGLO). The solutions were then plated on the LB, LB/amp and LB/amp/ara plates. The (+pGLO) on LB/amp/ara served as a(an) ________________________
Group of answer choices
a) control to see if transformation worked and bacteria are now antibiotic-resistant
b) control to see if bacteria survived the process of transformation
c) the experimental plate where the gene glows
d) the experimental plate where the gene of interest is expressed
Which is a method of overpopulation controlA. famineB. biodiversityC. government policies D. sanitation
Answers
The question refers to a method. So, the best option is letter C. government policies. A method by definition is a form of procedure to accomplish something.
Which type of replication error would be most likely to result in genetic variation among organisms
Answers
The type of replication error that would be most likely to result in genetic variation among organisms is a mutation.
Mutations are changes in the DNA sequence that occur during the replication process. They can introduce new genetic variations by altering the sequence of nucleotides in the DNA. Mutations can be caused by various factors, including errors in DNA replication, exposure to mutagenic agents (such as radiation or certain chemicals), or spontaneous changes in the DNA structure.
When a mutation occurs in the DNA of an organism, it can lead to changes in the genetic information. These changes can be beneficial, detrimental, or have no significant effect on the organism's phenotype. However, if a mutation provides a survival advantage or increases an organism's reproductive success, it may be selected for and passed on to future generations, resulting in genetic variation.
The occurrence of mutations is a natural and ongoing process in the evolution of organisms. It contributes to genetic diversity, allowing populations to adapt and respond to changes in their environment over time. Therefore, mutations are the primary replication error that leads to genetic variation among organisms.
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Which of the following statements about cell organelles is NOT true?
A. Chloroplasts contain chlorophyll and are the site of photosynthesis.
B. Many of the same organelles are located in both plant cells and animal cells.
C. The nucleus in an animal cell has a different primary function than in a plant
cell
D. The endoplasmic reticulum has several roles, including packaging and
transporting proteins.
Answers
Answer:
A
Explanation:
Answer: A
Explanation:
In what kind of location are new species being found?
IM SLEEPYYYY but i need help on my last question so plzz help a sista out
Answers
Answer:
It should be mostly in forest or in the ocean
Explanation:
Because, a forest is really crowded so some species wouldn't be visible to the human eye. And the ocean hasn't been fully discovered so we would be finding aquatic life the more we go deeper in the water.
Which statement correctly compares the precipitation of the two cities? A The average precipitation in Moss Point is higher than Hattiesburg in May. B The average precipitation in Hattiesburg is higher than Moss Point in February. C The average precipitation in Moss Point is higher than Hattiesburg in November. D The average precipitation in Hattiesburg is higher than Moss Point in September.
Answers
Answer:
b
Explanation:
What are the 4 ecosystem processes?
Answers
The ecosystem processes are:
Energy Flow.
Water Cycle.
Nutrient Cycle.
Community Dynamics.
The representation of ecological processes as rates of change, which necessitates repeated measurement over time, includes primary production, respiration, energy, carbon and nutrient transport via food webs, reproduction, and decomposition.
Four main kinds of ecosystem services were identified by the Millennium Ecosystem Assessment (MA), a significant UN-sponsored initiative to examine the effects of human activity on ecosystems and human well-being. These categories include provisioning, regulating, cultural, and sustaining services.
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To digest or breakdown a carbohydrate what process needs to take place and what happens during that process?
Answers
Carbohydrate digestion begins in the mouth. The salivary glands in the mouth secrete saliva, which helps to moisten the food. The food is then chewed while the salivary glands also release the enzyme salivary amylase, which begins the process of breaking down the polysaccharides in the carbohydrate food.
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Starches and sugars are mechanically and chemically broken down into the single units glucose, fructose, and/or galactose during digestion. These single units are then absorbed into the blood stream and transported to be used as energy throughout the body.
What is carbohydrate metabolism?The entire set of biochemical procedures involved in the metabolic synthesis, disintegration, and interconversion of carbs in living things is known as carbohydrate metabolism. Many vital metabolic pathways depend on carbohydrates.
Dietary glucose can either be processed through glycolysis or glycogenesis.
The resulting metabolic byproducts can either go on in carbohydrate metabolism to the citric acid cycle or return to glucose via gluconeogenesis or glycogenolysis, respectively.
Carbohydrates are broken down during digestion to produce ATP, a molecule that is high in energy.
The oxidation of glucose molecules results in the creation of ATP. To lower NAD+ and FAD, an electron is taken from a glucose molecule during oxidation.
Thus, this way, breakdown of a carbohydrate takes place.
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After a series of cell divisions, an embryo develops different types of body cells such as muscle cells, nerve cells, and blood cells. This development occurs because A. the genetic code changes as the cells divide B. different segments of the genetic instructions are used to produce different types of cells C. different genetic instructions are synthesized to meet the needs of new types of cells D. some parts of the genetic materials are lost as a result of fertilization
Answers
Answer:
C
Explanation:
different segment of the of the genetic instructions are synthesized meet the needs of the new type of cells
FIRST CORRECT GETS BRAINLIEST
Just ask 3-5 questions about climate change
Answers
Is the Sun causing global warming?
Is there a possible way to stop climate change?
Do scientists agree on climate change?
If there is a possible way to stop climate change, why don't we change it?
What do volcanoes have to do with climate change?
Answer:
What is the greenhouse effect?
Is it too late to prevent climate change?
What causes climate change?
Has the earth continued to warm since 1998?
Is it the ozone hole that causes climate change?
Aside from Earth's tilt, what other factor contributes to Earth's seasons?
A. the time of the day
B .the energy as heat from the moon C. the angle of the sun's rays and the number of hours of daylight
D. cold or warm air blowing from the oceans
Answers
C. The angle of the sun's rays and the number of hours of daylight.
The length of daylight hours and the angle at which the sun's rays hit the Earth's surface both have a big impact on the seasons. The Earth's axis is tilted in relation to its orbital plane as it revolves around the sun.
Because of this tilt, various areas of the Earth's surface get sunlight at varying angles throughout the year. When one hemisphere is inclined towards the sun, more direct sunlight falls there, resulting in longer daylight hours and higher temperatures, giving rise to summer.
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Which statements describe the fossil record? Select three options.
There is very little fossil evidence for the first 4 billion years of Earth.
There is very little fossil evidence for the last 600 million years of Earth.
Most of the fossil evidence is from the first 4 billion years of Earth.
Most of the fossil evidence is from the last 600 million years of Earth.
The fossil record is complete.
The fossil record is not complete.
Answers
Answer:
the last one
the 4th one
the 2nd one
Answer:
1, 4, 6 or a, d, f
Explanation:
How does the translation
process know where to
start and stop?
A. The ribosome decided when to
start and stop.
B. Start and stop codons this
C. It is random.
D. The genes regulate the entire
process.
Answers
Answer: B. Start and stop codons
Explanation:
The start codon marks the site at which translation into protein sequence begins, and the stop codon marks the site at which translation ends.
Answer:
b) Start and stop codons
Explanation:
The translation process know where to start and stop by Start and stop codons. Hence, the option (b) is correct.
Scientists have developed methods to insert the human gene for insulin into bacteria.
Why are bacteria a good target for this use of biotechnology to produce insulin?
A. Bacteria require insulin to survive, so the gene is more likely to be successful.
B. Bacteria are able to withstand a wide variety of conditions while producing insulin.
C. Bacteria reproduce quickly and pass on their genes to rapidly produce insulin.
D. Insulin-producing bacteria can be introduced into diabetics to deliver insulin.
Answers
Answer:
C)Bacteria reproduce quickly and pass on their genes to rapidly produce insulin.
Explanation:
This capacity for rapid reproduction enables the production of large quantities of genetically modified bacteria that can be used to mass-produce insulin for medical use. The other answer choices are not valid explanations for why bacteria are a good target for this application of biotechnology.
When doing the experiment of crossing drosophila. What are the prevaution and sources of error ？
Answers
Explanation:
Precautions:
1. Proper handling of drosophila: It is important to handle drosophila with care, avoiding rough handling and exposure to extreme temperatures.
2. Keeping the experimental setup clean: The experimental setup should be kept clean to avoid contamination and the spread of diseases.
3. Selection of appropriate crosses: The selection of appropriate crosses should be done carefully to obtain accurate results.
4. Use of appropriate food and media: The use of appropriate food and media is crucial for the growth and survival of drosophila.
5. Proper labeling and record-keeping: Proper labeling and record-keeping of experimental setups and crosses help to keep track of the results.
Sources of Error:
1. Mutation: Mutation can occur randomly in drosophila, leading to unpredictable and unexpected results.
2. Environmental factors: Environmental factors such as temperature and humidity can affect the growth and development of drosophila, leading to inaccurate results.
3. Contamination: Contamination with other organisms or pathogens can affect the results of the experiment.
4. Cross-contamination: Cross-contamination of different drosophila strains can affect the results of the experiment.
5. Human error: Human error, such as incorrect labeling or accidental mixing of samples, can affect the accuracy of the results.
Hopes this helps
During replication which sequence of nucleotides would bond with DNA sequence TATGA?
Answers
Answer:
ATACT
Explanation:
I hope this helps.
4.
Which of the following major biomes is most similar to that of the tundra biome?
desert
grassland
temperate forest
chaparral
Answers
Answer:
desert
Explanation:
they both have plants and animals that need special adaptations to survive there