Categories
Assignment Help

Research conducted on what happens when atoms get excited has helped in the identification of the atoms in the universe. What happens when atoms get excited? Atoms change into a particular shape. Atoms lose subatomic particles. Atoms produce a particular odor. Atoms release a particular color of light..

[ad_1]

Answered by answersmine AT 22/10/2019 – 02:54 AM

I believe the correct answer is the last option. When atoms get excited, atoms would release a particular color of light. When atoms gets excited, the electrons would move from a lower level to a higher level. However, this state is only short-lived and happens only in a split second then it goes back to its original level immediately. Going back to the lower level would release some extra amount of energy which is being released as heat or, oftentimes, as light in the form of electromagnetic energy or the particle photons. Thus, it releases a specific color of light depending on the wavelength of the light. 

Post your answer

[ad_2]

Categories
Assignment Help

How does knowing the story of Pandora enrich the viewer's experience and understanding of this painting? Knowing the backstory allows the viewer to relax and enjoy the painting for itself. It doesn't add anything to your understanding of the painting. It helps the viewer appreciate the painter's technique more. If you know the story, you realize that what she is about to release are all the evils of the world.

[ad_1]

How does knowing the story of Pandora enrich the viewer’s experience and understanding of this painting? Knowing the backstory allows the viewer to relax and enjoy the painting for itself. It doesn’t add anything to your understanding of the painting. It helps the viewer appreciate the painter’s technique more. If you know the story, you realize that what she is about to release are all the evils of the world.

[ad_2]

Categories
Assignment Help

What mass of manganese(II) chloride must react with sulfuric acid to release 48.5 mL of hydrogen chloride gas at STP? MnCl2(s)+H2SO4(aq)→MnSO4(aq)+2HCl(g)

[ad_1]

Note that one mole of any gas at STP occupies 22.4 L of volume. We may use this to calculate the moles of hydrogen chloride gas that need to be produced. This is:
0.0485 / 22.4
0.002 mol

Next, we see that the molar ratio between manganese chloride and hydrogen chloride in the equation is:
1 : 2

So the moles of manganese chloride reacting will be:
0.002 / 2 = 0.001 mol

The molecular mass of manganese chloride is 126 g/mol. The mass reacting will be:
0.001 * 126

0.126 grams of manganese (II) chloride will react. 

[ad_2]

Categories
Assignment Help

Which statement best describes how a catalyst can speed up a chemical reaction? The catalyst makes lower energy pathways available. The catalyst increases the concentration of products. The catalyst binds to enzymes to release substrates. The catalyst increases the concentration of reactants.

[ad_1]

There are two systems in the human body that are responsible for the coordination between the functions of different systems to achieve the unity of the living organism’s body. These two systems are the nervous system and the endocrine system. The action of the nervous system is fast and takes a short time, while the action of the endocrine system is slow and takes a long time.

The functional unit of the nervous system is the nerve cell or the neuron. The neuron consists of a cell body and the axon. The cell body starts with the dendrites that receive the messages or the impulses from other neurons or from different sense organs or receptors. These impulses are then transmitted through the cell body. The cell body contains a nucleus and different organelles which help the nerve cell to perform its functions. The nerve impulse is then transmitted to the axon.

The axon is an extension from the cell body. There are some cells called Schwan cells that secrete a myelin sheath to insulate the axon from the surrounding medium. The insulated axons have more ability to conduct the impulses than non-insulated axons. The axon ends with the terminal arborizations. The terminal arborizations of a nerve cell connect to the dendrites of the next cell or to the afferent organ. The gaps between the dendrites and the terminal arborizations are called the synapses.

The nerve impulse is an electrochemical phenomenon i.e. an electrical phenomenon with a chemical nature. The membrane of the axon acts as a barrier between an outside positively charged medium and an inside negatively charged medium. This makes a potential difference of  -70mV. This state is called the resting potential. When the membrane is subjected to a stimulus, the positive charges enter to inside and the negative charges exit to the outside. The potential difference now becomes +40mV. This state is called the depolarization state. The point of stimulation acts as a new stimulus for the next point and so on. The membrane sooner gains its permeability again and the positive charges return to the outside and the negative charges to inside. This state is called repolarization.

The nerve impulse reaches the synapse. There are some neurotransmitters that are excited by the nerve impulse coming and carry the message across the membrane. Some receptors receive theses neurotransmitters on the dendrites of the next neuron. These receptors act as a stimulus for the new cell.

[ad_2]

Categories
Assignment Help

Which of these conditions would promote aldosterone release from the adrenal glands

[ad_1]

Answer:

1. DNA

2. Prokariotic.

3. Crossing over.

4. Maple tree

5. Primary producers.

6. DIAGRAM NOT SHOWN

7. Lipids.

8. A

Explanation:

1. DNA is the macromolecule responsible for carrying the herederitary information of all cells, and even some viruses, with the exception of retroviruses.

2. Prokariotic cells (eubacteria and archeas) are cosmopolite, and lacks a membrane defined nucleus.

3. Crossing over.

During meiosis, homolog chromosomes pair and exchange genetic material, is also known as genetic recombination. This makes the chromosomes inherited not exactly equal to the corresponding from our fathers, or grandfathers.

4. Maple tree belongs to the clade Angiosperms: flowering plants, which produce seeds. Moss is a flowerless plant, this does not produce seeds. Lichen are composed from algae and cyanobacteria (so, not plants). Mushrooms are not plants.

5. Primary producers, such as bacteria and algae, can make organic  molecules from an abiotic source of energy.

6. DIAGRAM NOT SHOWN

7. Lipids are the main component of all biological membranes. In animals, specially cholesterols prevents the membrane from freezing, due its molecular structure. Tryglicerids, for example, provides besides thermal insulation, energy storage, filling space for keeping the organs together, among other functions.

8. The phosphorous is very slow, since it requires the extraction from rocks, starting from metereological processes (rain, erosion), Once in the soil, bacteria, fungi, plants and animals start to absorb it.

[ad_2]

Categories
Assignment Help

True or false? Health Insurance Portability and Accountability Act (HIPAA) regulations have made medical records release forms more complex by requiring more information and giving the patient more options to restrict the information released.

[ad_1]

1. The answer is “C”.

“Identical twins” who have been raised apart are typically more similar in intelligence level than biological siblings raised together because they have been born with the same genetic code.

Identical twins originate from a single fertilized egg that parts into two. Before it parts, it is either male or female. After it parts, there are either two guys or two females. The two sections of the fertilized egg embed in the uterus and every create one of the twins.  

Identical twins have the equivalent hereditary source. No immediate reason for monozygotic twinning has been resolved; it isn’t innate. Monozygotic twins speak to around 33% all things considered. They may look strikingly comparative, and it might be hard to reveal to them separated.

2. The answer is “A”.

Lawrence Kohlberg felt that one of the only ways individuals will accomplish the objectives in each of his six stages was to participate in “consensus democracy” in small group settings.

Lawrence Kohlberg felt that the best way to support development through these stages was by discourse of good problems and by investment in consensus democracy inside small groups. Consensus democracy was rule by understanding of the gathering, not larger part rule. This would invigorate and widen the reasoning of youngsters and grown-ups, enabling them to advance starting with one phase then onto the next.

3. The answer is “D.  showing a learner how to correct common mistakes”.

The term scaffolding alludes to a procedure in which instructors display or exhibit how to take care of an issue, and afterward venture back, offering support as required. Analyst and instructional architect Jerome Bruner first utilized the term ‘scaffolding’ in this setting, harking back to the 1960s. The hypothesis is that when understudies are given the help they require while discovering some new information, they stand a superior possibility of utilizing that learning freely. Bruner suggests positive association and three methods of portrayal amid educating: activities, pictures, and dialect.  

[ad_2]

Categories
Assignment Help

Helper t cells ________. often function to decrease the immune response release b7 proteins function in the adaptive immune system activation bind tightly to target cells and release a lymphotoxin called perforin

[ad_1]

In tropical rain forest, the animals will have to deal with higher temperatures and greater rainfall. One example of an adaptation they might need is a thin, water-proof coat. This will prevent heat from becoming trapped inside their fur/hair/feathers, and the water-absorbing coating will allow water to stick to the inside of the coat without being absorbed, where the water will absorb the heat instead of themselves, and will cool the through evaporative cooling (heat release through evaporation)

In a deciduous forest, there is much colder temperatures, and significantly less rainfall. These animals would likely want a thicker water-proof coat. This is because the thicker coat would allow heat to become trapped, keeping them warm in the winter, and the water-proof coating prevents water from freezing in their fur, making them colder.

[ad_2]

Categories
Assignment Help

Which of the following best predicts the outcome of a fusion reaction involving isotopes of hydrogen?Two hydrogen isotopes form bonds with each other, absorbing a large amount of energy.The nuclei of the hydrogen isotopes join together to form a heavier element, and energy is released.Isotopes of hydrogen absorb electrons, undergo an increase in energy level, and split into fragments.The nuclei of the hydrogen isotopes split, resulting in smaller fragments and the release of a large amount of energy.

[ad_1]

The balanced chemical reaction is as shown below,

                 N₂ + 3H₂  –> 2NH₃

The equation shows that every 3 moles of hydrogen, H2, there would be 2 moles of ammonia, NH3, that is going to be formed. Using this concept, we solve for the unknown in this item. 

Since we are restricted only of the number of hydrogen, it becomes our limiting reactant. 

          (6 moles H2) x (2 moles NH3/3 moles H2) = 4 moles NH3

Therefore, given enough amount of N2, the amount of NH3 that can be formed out of the 6 moles of H2 is equal to 4 moles. 

[ad_2]

Categories
Assignment Help

Radioactive decay occurs when two nuclei are smashed into each other and combine to form a much larger nucleus and release a vast amount of energy. True False

[ad_1]

The balanced chemical reaction is as shown below,

                 N₂ + 3H₂  –> 2NH₃

The equation shows that every 3 moles of hydrogen, H2, there would be 2 moles of ammonia, NH3, that is going to be formed. Using this concept, we solve for the unknown in this item. 

Since we are restricted only of the number of hydrogen, it becomes our limiting reactant. 

          (6 moles H2) x (2 moles NH3/3 moles H2) = 4 moles NH3

Therefore, given enough amount of N2, the amount of NH3 that can be formed out of the 6 moles of H2 is equal to 4 moles. 

[ad_2]

Categories
Assignment Help

Airplane releases a ball as it flies parallel to the ground at a height of 195m, the ball lands on the ground at exactly 195m from the release piont, calculate the speed v of the plane

[ad_1]

Answer:

a) The time the police officer required to reach the motorist was 15 s.

b) The speed of the officer at the moment she overtakes the motorist is 30 m/s

c) The total distance traveled by the officer was 225 m.

Explanation:

The equations for the position and velocity of an object moving in a straight line are as follows:

x = x0 + v0 · t + 1/2 · a · t²

v = v0 + a · t

Where:

x = position at time t

x0 = initial position

v0 = initial velocity

t = time

a = acceleration

v = velocity at time t

a)When the officer reaches the motorist, the position of the motorist is the same as the position of the officer:

x motorist = x officer

Using the equation for the position:

x motirist = x0 + v · t (since a = 0).

x officer = x0 + v0 · t + 1/2 · a · t²

Let´s place our frame of reference at the point where the officer starts following the motorist so that x0 = 0 for both:

x motorist = x officer

x0 + v · t = x0 + v0 · t + 1/2 · a · t²      (the officer starts form rest, then, v0 = 0)

v · t = 1/2 · a · t²    

Solving for t:

2 v/a = t

t = 2 · 15.0 m/s/ 2.00 m/s² = 15 s

The time the police officer required to reach the motorist was 15 s.

b) Now, we can calculate the speed of the officer using the time calculated in a) and the  equation for velocity:

v = v0 + a · t

v = 0 m/s + 2.00 m/s² · 15 s

v = 30 m/s

The speed of the officer at the moment she overtakes the motorist is 30 m/s

c) Using the equation for the position, we can find the traveled distance in 15 s:

x = x0 + v0 · t + 1/2 · a · t²

x = 1/2 · 2.00 m/s² · (15s)² = 225 m

[ad_2]

Categories
Assignment Help

How do fossil fuels form? a.decomposers remove fossil fuels from dead plants. b.bacteria fix carbon into fossil fuels. c.plants release fossil fuels in photosynthesis. d.dead organisms are compressed by dirt?

[ad_1]

How do fossil fuels form? a.decomposers remove fossil fuels from dead plants. b.bacteria fix carbon into fossil fuels. c.plants release fossil fuels in photosynthesis. d.dead organisms are compressed by dirt?

[ad_2]

Categories
Assignment Help

A drug that inhibits the release of norepinephrine will have the greatest affect on:

[ad_1]

It is true that according to statistics, half of all American teens will experiment with illegal drugs before they graduate high school. Teens are especially susceptible to bad influences, and wanting to be cool around their friends, they will often try various types of drugs during their high school years. Unfortunately, the number of such children is very large, but it doesn’t happen in America only, but all over the world.

[ad_2]

Categories
Assignment Help

What is libel? A. the use of injurious public speech B. the publishing of incorrect information about a person C. the use of someone else’s original ideas without attribution D. the release of information prior to the established publication date

[ad_1]

Huckleberry Finn is raised thinking that slaves are, to a certain extent, beneath him. However, as the story progresses, he becomes close to a slave named Jim. The new perspective that he gets from Jim influences him, and by the end of the novel, he sees slaves more like people.

This is a very basic summary. I’m sorry I can’t be of more help, but it’s been a long time since I’ve read the book.

To find more information on the topic, just use google. You might have to look through whatever version of ‘The Adventures of Huckleberry Finn’ you have to find quotes.

[ad_2]

Categories
Assignment Help

“Persephone” by Walter Wykes your laughter echoes still in that bright field where you played so carefree, a little goddess arms white as milk gathering flowers with your playmates when the earth shook and through the crumbling ground your monstrous lover burst an uninvited guest snatching you away plucking your innocence as you had plucked flowers only moments before how you must have cried out must have begged for your release when your mother learned of the abduction her grief stopped the earth, the moon, the stars in their tracks the world became eternal winter there was no consolation, no solace no moving on what an unexpected miracle when you returned to us a gift from the gods but you are not the same no longer that bright child a handful of seeds has sealed your fate and though all things flourish in your presence your laughter is colored by that other place, that dark lover and in your eyes cold winter reigns Wykes, Walter. “Persephone.” Black Cat Poems. Capella University, n.d. Web. 21 June 2011. Which archetype does Persephone exemplify in this poem? Ingénue Shrew Wicked Witch Heroine

[ad_1]

Answer:

c. The discoloration of ages had been great.

Explanation:

The Fall of the House of Usher (The Fall of the House of Usher) is a short story by Edgar Allan Poe first published in 1839.  The story begins with an unnamed narrator who arrives at the home of his friend, Roderick Usher, having received a letter from him in a distant part of the country complaining about an illness, and asking for his help. When he arrives, the narrator observes a thin crack that extends from the roof at the front of the building to the lake.

Although Poe wrote this tale before the invention of modern psychological science, Roderick’s condition can be described according to his terminology. It includes a form of sensory overload known as hyperesthesia (hypersensitivity to textures, light, sounds, smells and tastes), hypochondria (an excessive worry or temerity in having a serious illness), and acute anxiety. It is revealed that Roderick’s twin sister, Madeline, is also ill and falls into cataleptic trances, as if in a state of death. The narrator is impressed by Roderick’s paintings, and tries to cheer him up by reading with him and listening to his improvised musical compositions on guitar. Roderick sings “The Haunted Palace,” then tells the narrator that he believes that the house in which he lives may be alive, and that this sensitivity stems from the arrangement of the house and the surrounding vegetation.

[ad_2]

Categories
Assignment Help

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers. Find the length of the hypotenuse of a right triangle whose legs are 8 and 15 units in length. 1 2 3 4 5 6 7 8 9 0 check mark ^1 ^2 ^3 ^4 ^5 ^6 ^7 ^8 ^9 ^0 X Y

[ad_1]

Answer:

The initial height is 5 feet.

The object will hit the ground after approximately 4.57 seconds.

Step-by-step explanation:

An object is launched into the air. The projectile motion of the object can be modeled using the function h(t) = -16t^2 + 72t + 5, where t is the time in seconds since the launch and h(t) represents the height in feet of the object after t seconds

General equation is

h(t)= -16t^2 + v_0t+h_0

V_0 is the initial velocity

h_0 is the initial height

From the given equation , the initial height is 5 feet

Initial velocity is +72 feet / sec

When the onbject hits the ground, the height becomes 0

So we plug in 0 for h(t) and solve for t

0 = -16t^2 + 72t + 5

USe quadratic formula to solve for t

t= frac{-b+-sqrt{b^2-4ac} }{2a}

a=-16, b= 72, c= 5

t= frac{-72+-sqrt{72^2-4(-16)(5)} }{2(-16)}

t= -0.06  and t= 4.568

The object will hit the ground after approximately 4.57 seconds.

To find out the height after 3 seconds, plug in 3 for t

h(t) = -16(3)^2 + 72(3) + 5=77

At t=0 , h(0) = 5

[ad_2]

Categories
Assignment Help

What is the denotation of the word “cast” in this excerpt? drop casually throw with force toss lightly release into the air

[ad_1]

Here are your matches:

Ronald Reagan

  • I challenged the Soviet Union to tear down the Berlin Wall.  I also maintained a hard line against communism.

Dwight D. Eisenhower

  • My administration created the idea of brinkmanship–going to the brink of nuclear war to achieve our aims.

Margaret Thatcher

  • I was good friends with leaders of the Soviet Union and the United States and helped end the Cold War by bringing them together.

Nikita Khrushchev

  • I pulled missiles out of Cuba during the Cuban Missile Crisis, and prevented the Cold War from escalating into a nuclear war.

Harry S. Truman

  • I made the decision to drop the atomic bomb, but I also became known for Marshall Plan and the doctrine of containment.

Josef Stalin

  • I began the Cold War in Europe by creating the Communist Bloc.  I also stole atomic secrets from the United States and built my own bomb, thus escalating tension in the early Cold War.

Mikhail Gorbachev

  • My policies were designed to give more personal and economic freedom to people in the Soviet Union.  I had good relations with many leaders in the Western Bloc.

A bit of added detail:

I’d like to explain more about one item in the list above — the policy of “brinkmanship” during the Eisenhower administration.

John Foster Dulles was Secretary of State under US President Dwight Eisenhower. Dulles held the office from 1953 to 1959.  He wanted a change from what had been the “containment policy” which the US had followed during the Truman Administration, as recommended then by American diplomat George F. Kennan.   Dulles felt the containment approach put the United States in a weak position, because it only was reactive, trying to contain  communist aggression when it occurred.

Dulles sought to push America’s policy in a more active direction; some have labeled his approach “brinkmanship.”  In an article in LIFE magazine in 1956, Dulles said, “The ability to get to the verge without getting into the war is the necessary art.”  He wasn’t afraid to threaten massive retaliation against communist enemy countries as a way of intimidating them.

[ad_2]

Categories
Assignment Help

What is the denotation of the word “cast” in this excerpt? drop casually throw with force toss lightly release into the air

[ad_1]

d) Instead of giving in to death, people should fight against it.

Throughout the poem, the lines “Do not go gentle into that good night” and “Rage, rage against the dying of the light” are repeated. The “good night” and “dying of the light” are different ways of saying death. The narrator is telling the audience to fight death, rage against it, don’t go gentle.

The poem is written in the form of a Villanelle with a specific rhyme scheme and repeating line pattern. Villanelle’s also have a structure to it’s overall content. The subject of the poem increases in intensity as the poem goes on. In this poem, the speaker talks about why different types of people fight death. In the last stanza, the speaker changes from talking about others to speaking directly to his father and begging his father to fight death.

[ad_2]

Categories
Assignment Help

Proteins destined for extracellular release are packaged in specific vesicles. After packaging, the vesicles bud off and are stored in the cell until a signal is given for their release. When the appropriate signal is received they move towards the membrane and fuse to release their contents. Once proteins have been produced at the ribosomes, what two organelles work together to aid in the secretion process described above? A) ribosome and ER B) Golgi apparatus and rough ER C) Golgi apparatus and lysosome D) mitochondria and rough endoplasmic reticulum

[ad_1]

Ans. (D) couples who are planning to have children.

Genetic counselors are healthcare experts, who advise peoples and families having risk of genetic disorders or are affected by genetic diseases to guide them about psychological, medical, and familial implications of factors for the disease.

Generally, they work with couples who are planning to be parents as they perform genetic testing. They provide information about risk of genetic disorders in their children, if there is close family member affected or with risk of genetic disease.  

Thus, the correct answer is option (D).

[ad_2]

Categories
Assignment Help

The process by which male and female fishes release their gametes near each other in the water is called?

[ad_1]

Answer:

a) these traits are carried only on the x chromosome and since there is no matching gene on the y chromosome, the traits are expressed more readily in males.

Explanation:

Hemophilia, color blindness, and duchenne muscular dystrophy are disorders which are caused by X-linked recessive mutations which means that even if a mutation occurs in a gene of only one X chromosome then the phenotype will be expressed in the males because they are hemizygous for the gene. By hemizygous we mean to say that males have one X and one Y chromosome so a gene present on X chromosome will not find match on the Y chromosome and the mutation will express readily.

In contrast to this, in case of females who have two X chromosomes, the mutation in one X chromosome may be suppressed by another X chromosome in heterozygous condition i.e. if another X chromosome has healthy gene (wild type gene). In case of females the diseased phenotype will only appear if they are homozygous for the mutation.

[ad_2]

Categories
Assignment Help

The competition to bring news to the public faster has resulted sometimes in the release of _____________ reports that have not been verified. A. confirmed B. unconfirmed C. faithful D. factual

[ad_1]

Answer:  Media’s role as watchdog

Details:

“Watergate” refers to efforts by persons working for President Nixon’s reelection campaign to spy on their opponents at Democratic party headquarters, and subsequent efforts to cover up those crimes.

The first break-in attempt by burglars working on Nixon’s behalf occurred  in May, 1972, as persons connected to the Nixon reelection campaign broke into the Democratic National Committee office in the Watergate complex of buildings in Washington, DC.  They were planting wire-taps on the Democrats’ phone lines, and also stole copies of documents.  When the wire-taps didn’t work properly, they broke in again (in June) to try to fix the surveillance devices, but they were caught.

An insider at the FBI who remained anonymous at the time, known only as “Deep Throat,” began to give information concerning Watergate to reporters Bob Woodward and Carl Bernstein of the Washington Post.   Persistent investigative reporting by Woodward and Bernstein brought the scandal to light and forced Congressional hearings.   (Note:  Years later it was revealed that Deep Throat was Mark Felt, who at the time was Associate Director of the FBI.)

Nixon’s role in Watergate was especially in his efforts and those of members of his staff to cover up what had happened.  Ultimately, the Watergate affair brought down the Nixon presidency.  He resigned in order to avoid impeachment.  And the whole affair made Americans more distrusting of government.

[ad_2]

Categories
Assignment Help

17. What is the purpose of the mantra during meditation? A. It lets everyone know you're meditating. B. It allows you to concentrate on one peaceful sound. C. It helps to relax the muscles. D. It helps to release endorphins.

[ad_1]
17. What is the purpose of the mantra during meditation? A. It lets everyone know you’re meditating. B. It allows you to concentrate on one peaceful sound. C. It helps to relax the muscles. D. It helps to release endorphins.
[ad_2]

Categories
Assignment Help

In the cell, part of the golgi apparatus will pinch off and move away. what is the function of this process? a.to release energy from atp b.to deliver proteins to other locations in the cell c.to collect amino acids for use in protein synthesis d.to send messages about cell requirements to the nucleus

[ad_1]

Answer: The correct answer for the blank is –

Genes.

Explanation:

Genes can be described as segment of DNA (deoxyribonucleic acid) that code for specific protein, which ultimately determines the trait or characteristic of an organism (such as eye color, hair color).

They are considered as the unit of heredity as they are passed from one generation to the next generation through chromosomes.

Thus, genes is the right answer for the given blank.

[ad_2]