a circular cylinder of radius r rotate about the long axis with angrlar velocity . the cylinder contains the ideal gas of atoms of mass m at temperature find an expression for the dependence of the concentration on the radial distance
Answers
The word nQe / is constant since the equilibrium position is fixed at a particular temperature. We may then write n(r) = n(0)e M2 r 2/2.
Eqs. (5.12a) and (5.15) from the book can be combined as follows to get the relationship between the particle concentration and the system's overall chemical energy:
= ext + int, where int is determined by and extension is the energy per particles in the external potential.
Integers are expressed as ln n nQ, where nQ = (M /2 h 2) 3/2.
The potential energy of the particles can be determined by calculating as V(r) = Z r 0 F(r 0)dr0 = Z r 0 M2 r 0 dr0 = M2 r 2 2 because they are subject to the gravitational force F(r) = M2 r.
The system's entire chemical potential then changes to = ln n(r) nQ M2 r 2 2.
When this equation is solved for n(r), the result is n(r) = nQe /e M2 r 2/2.
The word nQe / is constant since the equilibrium position is fixed at a particular temperature. We may then write n(r) = n(0)e M2 r 2/2.
A circular cylinder of radius R rotates about the long axis with angular velocity ω. The cylinder contains an ideal gas of atoms of mass M at temperature τ . Find an expression for the dependence of the concentration n(r) on the radial distance r from the axis, in terms of n(0) on the axis. Take µ as for an ideal gas
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Related Questions
Organisms
What do that provide?
Answers
1. For something to be considered living it must have what 7 characteristics
Answers
Answer: Movement, breathing or respiration, excretion, growth, sensitivity and reproduction.
Explanation: "There are seven characteristics of living things: movement, breathing or respiration, excretion, growth, sensitivity and reproduction. Some non-living things may show one or two of these characteristics but living things show all seven characteristics."
Hope it helps <3
Answer:
responsiveness to the environment;
growth and change;
ability to reproduce;
have a metabolism and breathe;
maintain homeostasis;
being made of cells; and.
passing traits onto offspring.
What is you opinion about people losing jobs
(topic coruption) the sentence should be negative
Answers
It is deeply concerning to see that people are losing their jobs due to corruption. Corruption is a cancer in society that erodes trust, undermines the rule of law, distorts markets, and leads to serious economic and social costs.
The people who lose their jobs due to corruption are particularly vulnerable, as they're frequently low- paid and have little access to resources and support. This can have a ruinous effect on their livelihoods and the well- being of their families. likewise, corruption is an handicap to profitable progress and perpetuates inequality,
as it frequently affects the most vulnerable and least important members of society. It's essential that we take measures to combat corruption and insure that everyone has the occasion to work in a fair and transparent environment.
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If the mRNA code is Cucaagugcuuc which of the following would represent a strand
of DNA from which the mRNA is made up of
Answers
When DNA is transformed into mRNA in the nucleus, the process is known as transcription. The cytoplasmic production of proteins is controlled by the mRNA.
What are the nitrogenous base difference in RNA and DNA?
Adenine, cytosine, uracil, and guanine make up the four nitrogenous bases that make up RNA. The pyrimidine uracil is structurally related to the pyrimidine thymine, which is also a pyrimidine present in DNA.
A nitrogenous nucleotide called uracil is unique to single-stranded RNA and is not present in DNA. In DNA, thymine and adenine pair up, whereas in RNA, uracil and adenine pair up.
Therefore, GAGTTCACGAAG is the DNA sequence from which mRNA code is Cucaagugcuuc is made.
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describe the process of photosynthesis including descriptions of light reactions and the calvin cycle bis 2c
Answers
Photosynthesis is the process by which plants and some microorganisms convert light energy into chemical energy in the form of glucose. It occurs in two main stages: the light reactions and the Calvin cycle.
During the light reactions, which take place in the thylakoid membranes of chloroplasts, light energy is absorbed by chlorophyll molecules during photosynthesis. This energy splits water molecules into oxygen, electrons, and protons. The electrons are transferred through an electron transport chain, generating ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate) as energy carriers.
The Calvin cycle, which occurs in the stroma of the chloroplasts, utilizes the ATP and NADPH produced in the light reactions. Carbon dioxide is captured and converted into a three-carbon molecule called glyceraldehyde-3-phosphate \((G_3P)\) through enzyme-catalyzed reactions. Some \(G_3P\) molecules are used to regenerate the starting molecule, while others are used to synthesize glucose and other organic compounds.
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The complete question is:
Describe the process of photosynthesis including descriptions of light reactions and the Calvin cycle.
Directions: Read and understand each question very well. Write the letter on a separate sheet of paper. 1. Which of these explains the cause of day and night? A. The revolution of the earth around the Sun B. The rotation of the earth on its axis C. The rotation of the earth around the Sun D. Both A and B 2. The earth travels on its orbit around the sun. Some changes take place during this orbit of the earth. These changes on Earth are caused by varying. A. Amount of air C. Amount of oxygen B. Amount of rainfalls D. Amount of sunlight 3. The places near the equator receive more heat than others. They experience A. Cold temperature C. Higher Temperature B. Lower Temperature D. Moderate Temerature 4. Which picture below shows the angle of the earth's axis? A. Ø C. D. 5. The part of the earth facing directly to the Sun receives A. Slanting rays C. Diagonal rays B. Vertical rays D. Staright rays 6. Which of the following results to different amount of solar energy received by the different parts of the world. A. Revolution and rotation C. Rotation B. Revolution D. none of the above 7. Why do we have seasons on earth? A. Because the Sun is tilted on its axis B. 0.C
Answers
Answer:
1.
1.D
2.D
3C
4.theres no picture so i am not sure what to answer,youre on your own here, just read and research about it on ur module or in the internet, u can do it:D
5.B
6.A
7. the choices arent very clear in what you copy and paste here but the answer is, revolution of the earth around the sun and the earth tilting on its axis or "rotation"
Explanation:
HOPE IT HELPS<3
KEEP LEARNING BUD
Read about invasive species. Then answer the questions provided. Wild Parsnip Describe the invasion of wild parsnip, including the harm it causes.
Answers
Answer: An invasive species is the one which compete for resources with the native species.
Explanation:
Wild Parsnip is an invasive species of plant in Europe and Asia. It grows on the roadside and the seeds of the plant disperse very easily by wind and water agents. It spreads easily and compete with native species for resources like soil nutrients, water, and others. It produces a chemical that causes rash in the human skin and the human skin becomes sensitive to sunlight resulting in development of blisters and rashes on the skin.
Answer:
came from Europe and Asia
invaded the entire state of Wisconsin
can burn your skin
reproduces rapidly
can be removed at root or with a powered brush cutter for large populations
Explanation:
Because of photosynthesis,
a. plants produce carbon dioxide gas
b. heterotrophs can get energy directly from sitting in the sun
C.
All of these are correct.
d.
the atmosphere is rich in oxygen gas.
Answers
Answer:
d. The Atmosphere is rich in Oxygen gas
Explanation:
Due to photosynthesis, Oxygen is released by the plant, hence the atmosphere is rich in oxygen
Answer:
D. The atmosphere is rich in oxygen gas.
With out plants and photosynthesis, we wouldn't have oxygen and air to breath, and all life on earth would perish.
Explanation:
Hope it helps!
Where do rocks enter the earths core? How do they come up to the surface?
Answers
where do rocks enter the earths core?
you see, many geologists believe that as the Earth cooled, the heavier and denser materials sank to the centre. and the lighter materials rose to the top, I'm pretty sure Inge lehmann discovered that.
as for your other question, how do they come up to the surface?
when the ground thaws, space is left under the stone, which fills with dirt, so it rests a little higher. over a period of time, this repeated freezing, expanding, and upward push fills underneath. eventually shoves the rock to the surface.
hope this helped, oh and just saying, that discovery was identified by James Hutton.
a marine biologist dredges up a small animal from the bottom of the ocean. it is uniformly segmented, with short, stiff appendages and soft, flexible skin. it has a complete digestive system and a closed circulatory system, plus multiple true coeloms. based on this description, it may be determined that the animal must be a(n) .
Answers
Based on this given description, it may be determined that the animal must be an Annelid.
Invertebrate animals with bilateral symmetry are known as annelids. Coelomate and triploblastic describe them. The main characteristic that sets annelids apart is their segmented bodies. Polychaeta, Oligochaeta, and Hirudinea are the three main classes of annelids. Older classification schemes would classify the polychaetes and oligochaetes as belonging to the Chaetopoda since both categories have setae.
Any member of the phylum Annelida, often known as "segmented worms," are invertebrate organisms that are distinguished by the presence of moveable bristles (or setae), a body cavity (or coelom), and a body split into segments by transverse rings, or annulations, from which they derive their name. Annelids are used by humans as food and bait in addition to increasing soil fertility. Annelids are studied by scientists to assess the quality of fresh and marine waters.
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how does ph negatively affect the metabolism of microorganisms
Answers
Answer:
causes proteins and enzymes to denature and causing a loss of enzymantic activity.
Explanation:
Data Nugget - Breathing In, part 1
Did the data support Kristina and Susan's hypothesis? Use evidence to explain why or why not. If you feel the data was inconclusive, explain why.
Answers
(Yes, the evidence backs up the researchers' hypothesis.)
Explanation:What are the research's hypotheses?
A hypothesis outlines your expectations for the results of your investigation. It is a speculative, untested response to your research question. You might need to develop a number of hypotheses for some research projects that speak to various facets of your research issue.
According to the information provided, fish parents who had received a full diet emerged in every case with the exception of the fanning occurrence in females.
Consider the difference between the number of mouthing occurrences among guys receiving the full ration (30.7) and those receiving the half ration (24.5).
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Cr from this answer: ByaptiMahapatra
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population of bacteria is growing according to the equation P(t)=1000e0.12t, where P(t) is the population and t is the time in hours. Estimate when the population will reach 5000 . Round to the tenths. Provide your answer below:
Answers
The estimated time it will take for the population to reach 5000 bacteria is approximately 13.4 hours.
To estimate when the population will reach 5000 bacteria, we can set up the equation P(t) = 5000 and solve for t.
The given equation for population growth is P(t) = 1000e^(0.12t). To solve for t, we can substitute 5000 for P(t):
5000 = 1000e^(0.12t)
To isolate the exponential term, we can divide both sides of the equation by 1000:
5 = e^(0.12t)
Next, we can take the natural logarithm (ln) of both sides to remove the exponential:
ln(5) = ln(e^(0.12t))
Using the property of logarithms, ln(e^(0.12t)) simplifies to 0.12t:
ln(5) = 0.12t
Now, we can solve for t by dividing both sides by 0.12:
t = ln(5) / 0.12
Using a calculator, we find that ln(5) is approximately 1.6094. Dividing this by 0.12 gives us an approximate value for t:
t ≈ 1.6094 / 0.12 ≈ 13.4117
Rounding to the tenths place, the estimated time it will take for the population to reach 5000 bacteria is approximately 13.4 hours.
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Give three examples of how this tree could affect
competition with the native species of plants and animals in the forest.
Spread of Invasive Tree Species
Area of Land Affected (acres)
Answers
Invasive tree species can have a significant impact on the competition with native species of plants and animals in a forest ecosystem.
In general , Invasive trees can change soil chemistry, light levels, and nutrient availability, creating a more favorable environment for their growth while hindering the growth and survival of native species adapted to the original conditions.
Also, Invasive trees can outcompete and displace native trees, shrubs, and other plants, reducing biodiversity and altering the composition of the forest ecosystem. They may also provide inferior habitat for native wildlife species. They can also disrupt the mutualistic relationships between native plants and animals, which can have cascading effects throughout the ecosystem.
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Age is an example of a ____________ measure. Age is an example
of a ____________ measure. nominal biological discrete
continuous
Answers
Age is an example of a nominal and discrete measure. It classifies individuals into distinct categories based on the number of years they have lived, but it does not have any inherent numerical meaning or allow for intermediate values.
Age is an example of a nominal measure. A nominal measure is a type of measurement scale that classifies data into distinct categories or groups. In the case of age, individuals are categorized into specific age groups, such as 0-18, 19-30, 31-45, and so on. These categories do not have any inherent numerical or quantitative meaning. Instead, they serve as labels to differentiate different age ranges.
Unlike a biological measure, which refers to physical characteristics of living organisms, age is not directly related to an individual's biology. It is a social construct that is used to determine the number of years a person has lived since birth. Age can be measured using a variety of units, such as years, months, or days.
Age is also a discrete measure because it takes on specific, separate values. For example, someone can be 15 years old, 25 years old, or 40 years old. There is no intermediate value between these discrete age categories.
On the other hand, age is not a continuous measure. A continuous measure is one that can take on any value within a certain range. For example, height or weight can have any value within a specific range. In the case of age, there are distinct categories and no intermediate values. You are either in one age group or another.
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How much time is required for a P-wave to travel 6,000 kilometers?
Answers
Answer:
294.1 minutes
Explanation:
5,882 seconds (98 minutes) to travel 2,000 km.
2,000 x 3 = 6,000
5,882 seconds x 3 = 17,646
(294.1 minutes) to travel 6,000 km
Demand of oxygen in water does not increase with increase in
a/concentration of solid waste
b/number of aquatic plants
c/number of aquatic animals
d/rapid flow of water
Answers
Answer:
b. number of aquatic plants
Explanation:
The number of aquatic plants doesn't increase the demand for oxygen in water because these plants take in carbon dioxide rather than oxygen. This means that an increase in their number will not trigger an increase demand for oxygen, rather it will trigger an increase demand for carbon dioxide in its dissolved form.
An increase in the concentration of solid waste, increases the demand for oxygen because it is needed for decomposition.
An increase in aquatic animals will increase the demand for oxygen in its dissolved form because aquatic animals take in oxygen to survive.
An increase in the flow of water increases the demand for oxygen because as water flows, it mixes with air. The more rapid it is, the higher the chance to mix with oxygen.
how can i solve and interpret codominant crosses involving multiple alleles including blood typing problems?
Answers
To solve and interpret codominant crosses involving multiple alleles, such as blood typing problems, follow these steps:
1. Understand the concept of codominance: In codominance, both alleles are expressed equally in the offspring's phenotype. For example, in blood typing, the A and B alleles are codominant, while O is recessive.
2. Identify the alleles: For blood typing, there are three alleles: A, B, and O. The A and B alleles are codominant, and O is recessive.
3. Use a Punnett square: Create a Punnett square to organize and analyze the possible combinations of alleles between parents.
4. Fill in the Punnett square: Write the possible alleles from each parent along the top and left side of the square. Fill in the boxes with the corresponding allele combinations.
5. Analyze the results: Each box in the Punnett square represents a possible outcome for the offspring's blood type. Interpret the results by calculating the percentage of each blood type based on the total number of boxes.
By following these steps, you can accurately solve and interpret codominant crosses involving multiple alleles, such as blood typing problems.
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which is the correct sequence of events in the transmission of an impulse across a chemical synapse?
Answers
The correct sequence of events in the transmission of an impulse across a chemical synapse is:
The membrane becomes depolarized, causing voltage-gated calcium channels to open.The opening of calcium channels triggers the release of synaptic vesicles which contain neurotransmitters.The neurotransmitters diffuse across the synaptic cleft, binding to receptor proteins on the postsynaptic membrane.The binding of neurotransmitters to the receptor proteins triggers an electrical signal in the postsynaptic membrane.Correct answer: letter C.
The transmission of an electrical impulse across a chemical synapse is a process that involves several steps. When an electrical impulse reaches a synapse, the membrane becomes depolarized, which signals the opening of voltage-gated calcium channels.
This allows calcium ions to enter the neuron, triggering the release of synaptic vesicles which contain neurotransmitters. The neurotransmitters diffuse across the synaptic cleft, and bind to receptor proteins on the postsynaptic membrane. The binding of neurotransmitters to the receptor proteins triggers an electrical signal in the postsynaptic membrane, which then passes the impulse on to the next neuron.
This process is how information is transmitted across neurons, and is essential for the functioning of the nervous system.
Which one of the following is the correct sequence of events that follows in a Synaptic Transmission of Nerve impulse _____.
1. The membrane becomes depolarized
2. Voltage Calcium channels open
3. Release of Synaptic Vesicles
4. Diffusion of neurotransmitter across the synaptic cleft, binding to receptor proteins on the postsynaptic membrane.
A) 2,1,4,3
B) 3,2,4,1
C) 1,2,3,4
D) 4,1,3,2
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The benificial mutrients help in evolution . why?
Answers
Answer:
Well, nutrients can help give you protein and vitamins, So you can do your daily things like walking, running, or doing what you are doing right now typing on your computer.
Explanation:
How do scientists know dark energy exists?
Answers
Answer:
they just asked it
Explanation:
yep
Two similar waves are traveling through the same medium. Wave A has a frequency that is 3 times that of wave B. How do their wavelengths compare?
a. λA=1/9 λB
b. λA=λB
c. λA=1/3 λB
d. λA=3 λB
Answers
Answer:
The wavelength of wave B will be greater than wavelength of wave A which has greater frequency.
What is wavelength?
The wavelength of a wave is the distance traveled by the wave.
The relationship between wavelength and frequency of a wave is given as;
v = fλ
λ = v/f
At a constant speed of sound, increase in frequency causes a decrease in the wavelength of a given wave.
Thus, the wavelength of wave B will be greater than wavelength of wave A which has greater frequency.
Explanation:
The wavelength of wave B will be greater than wavelength of wave A which has greater frequency. It means λA=1/3 λB. The correct option is c.
What is wavelength?The distance over which a periodic wave's shape repeats is known as the wavelength in physics. The distance a wave travels is measured by its wavelength.
The following is the formula for a wave's relationship between wavelength and frequency:
v = fλ
λ = v/f
A given wave's wavelength decreases as its frequency rises with a constant speed of sound.
Thus, the correct option is c.
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a petechial rash starting on the hands and feet and spreading to the torso is characteristic of ____
A. rmsf.
B. necrotizing fasciitis.
C. anthrax.
D. smallpox.
E. herpes gladiatorum.
Answers
A. RMSF (Rocky Mountain spotted fever).
A petechial rash starting on the hands and feet and spreading to the torso is characteristic of Rocky Mountain spotted fever (RMSF). RMSF is a bacterial infection caused by the bacterium Rickettsia rickettsii, which is transmitted through tick bites. One of the prominent symptoms of RMSF is the development of a petechial rash, which appears as small red or purple spots on the skin. The rash typically begins on the wrists, ankles, and palms, and then spreads to the arms, legs, and torso. This rash is an important diagnostic feature of RMSF and distinguishes it from other conditions listed in the options (B, C, D, E) that have different characteristic rashes or symptoms.
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_______ control of gene expression involves the activity of ____ after they have been synthesized.The presence of a 5' __ and a 3' ___ allow translation to take place.Once they are ___ , translation stops.______ control of gene expression involves the activity of ____ at the _____ where translation takes place.Enzymes called _____ are contained within organelles called ______ where they are released once the need to be ____
Answers
The control of gene expression involves the activity of regulatory mechanisms after they have been synthesized. The presence of a 5' cap and a 3' poly allow translation to take place. Once they are degraded, translation stops.
Post-transcriptional control of gene expression involves the activity of RNA-binding proteins at the ribosome where translation takes place. Enzymes called ribonucleases are contained within organelles called lysosomes where they are released once the need to be degraded.
A number of layers of control, including transcriptional, post-transcriptional, translational, and post-translational processes, are used to regulate the expression of genes.
The 3' poly(A) tail and 5' cap of an mRNA molecule are necessary for both stability and translation. The 5' cap helps the ribosome recognize the mRNA during translation beginning and guards it against exonuclease destruction.
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Breathing gas supply becomes the limiting factor on most deep dives. that's why ssi recommends to have:______.
Answers
The answer is an additional gas supply available at 15 feet
Breathing gas supply becomes the limiting factor on most deep dives. that's why ssi recommends to have an additional gas supply available at 15 feet.
What is Breathing gas?
A combination of gaseous chemical substances and elements is referred to as a breathing gas. The most prevalent and only natural breathing gas is air, but other gas mixtures or pure oxygen are also used in breathing apparatus and enclosed environments, including scuba gear, surface-supplied diving gear, recompression chambers, high-altitude mountaineering, high-flying aircraft, submarines, space suits, and anaesthetic machines.To learn more about Breathing gas visit:
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why is it important to pick ur pet waste up
Answers
B. Gut bacteria can infect fish.
During the early days of X-ray use for medical imaging. X-ray technicians developed cancer at a much higher rate than the general public.
Which argument BEST explains this trend?
A. X-ray exposure causes DNA bases to pair incorrectly which may led to cancer.
B. X-ray exposure causes double -stranded breaks in DNA which may lead to cancer.
C. X-ray exposure causes thymine dimer formation in DNA which may lead to cancer.
D. X-ray exposure causes DNA polymerase to make more mistakes which may lead to cancer.
PLEASE ANSWER IMMEDIATELY
Answers
X-ray exposure causes DNA polymerase to make more mistakes which may lead to cancer.
How X ray causes cancer?Ionizing radiation such as X ray is classified as a human carcinogen means that it can damage DNA and cause cancer disease.
If a person has an error in a DNA repair gene and mistakes remain uncorrected. Then, the mistakes leads to mutations. These mutations may eventually lead to cancer so we can conclude that X-ray exposure causes DNA polymerase to make more mistakes which may lead to cancer.
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Help please vvvvvvvvv
Answers
Answer:
The answer is (1), flea saliva may stimulate an immune response in cats and dogs.
Explanation:
An allergic reaction is an immune response.
Without the interactions between these five systems, running would be difficult due to the need for the coordination between breathing, pumping enough oxygen in blood to cells, and moving muscles and bones.
Answers
other component of our blood type is the Rh factor. Some people have Rh positive blood and
others have Rh negative blood. The Rh factor is determined by one gene with two alleles. The allele
Home work allele and "y" to represent the r
for Rh positive is dominant over the allele for Rh negative. Let's use "R" to represent the positive
negative allele.
IR
|v
118
Ir
Work this problem: A woman whose blood type is AB negative marries a man with blood type O
positive. The man's mother had blood that was A negative.
What is the genotype of the woman?
10 |^ TV
What is the genotype of the man?
TIR
What is the genotype of the man's mother?
Alrr
What types of children might this man and woman expect to have?
1or 11°r
Genotypes
Phenotypes
Answers
The genotype of the woman with AB negative blood is IAi.
The genotype of the man with O positive blood is ii.
The genotype of the man's mother with A negative blood is IAi.
This man and woman could expect to have children with blood types A, B, AB, or O, but all of them would be Rh negative as the negative allele is recessive. The genotypes of their children could be IAi, IBi, IAi/IBi (AB), or ii (O) and the phenotypes would be A negative, B negative, AB negative and O negative respectively.
What is a genotype?A genotype is the genetic makeup of an organism, or the specific combination of alleles that an organism carries for a particular gene or genes.
A genotype can also be defined as the genetic makeup of an individual, specifically the combination of alleles that an individual inherits from their parents for a particular gene or group of genes.
It describes the genetic instructions that determine the characteristics of an organism. It can be represented by letters, such as A, B, C, etc. to represent different versions of a gene and different genotype combinations are represented by different letter combinations (e.g. AA, Aa, aa).
Therefore, the correct answer is as given above
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