Sunday, May 24, 2020

The Definition of a Solid in Chemistry and Science

A  solid is a  state of matter characterized by particles arranged such that their shape and volume are relatively stable. The constituents of a solid tend to be packed together much closer than the particles in a gas or liquid. The reason a solid has a rigid shape is that the atoms or molecules are tightly connected via chemical bonds. The bonding may produce either a regular lattice (as seen in ice, metals, and crystals) or an amorphous shape (as seen in glass or amorphous carbon).  A solid is one of the four fundamental states of matter, along with liquids, gases, and plasma. Solid state physics and solid state chemistry are two branches of science dedicated to studying the properties and synthesis of solids. Examples of Solids The matter with a defined shape and volume is solid. There are many examples: A brickA pennyA piece of woodA chunk of aluminum metal (or any metal at room temperature except mercury)Diamond (and most other crystals) Examples of things that are not solids include liquid water, air, liquid crystals, hydrogen gas, and smoke. Classes of Solids The different types of chemical bonds that join the particles in solids exert characteristic forces that can be used to classify solids. Ionic bonds (e.g. in table salt or NaCl) are strong bonds that often result in crystalline structures that may dissociate to form ions in water. Covalent bonds (e.g., in sugar or sucrose) involve the sharing of valence electrons. Electrons in metals seem to flow because of metallic bonding. Organic compounds often contain covalent bonds and interactions between separate portions of the molecule due to van der Waals forces. Major classes of solids include: Minerals:  Minerals are natural solids formed by geological processes. A mineral has a uniform structure. Examples include diamond, salts, and mica.Metals:  Solid metals include elements (e.g., silver) and alloys (e.g., steel). Metals are typically hard, ductile, malleable, and excellent conductors of heat and electricity.Ceramics:  Ceramics are solids consisting of inorganic compounds, usually oxides. Ceramics tend to be hard, brittle, and corrosion-resistant.Organic Solids:  Organic solids include polymers, wax, plastics, and wood. Most of these solids are thermal and electrical insulators. They typically have lower melting and boiling points than metals or ceramics.Composite Materials:  Composite materials are those which contain two or more phases. An example would be a plastic containing carbon fibers. These materials yield properties not seen in the source components.Semiconductors:  Semiconducting solids have electrical properties intermediate between those of cond uctors and insulators. The solids may be either pure elements, compounds, or doped materials. Examples include silicon and gallium arsenide.Nanomaterials:  Nanomaterials are tiny solid particles at the nanometer size. These solids may display very different physical and chemical properties from large-scale versions of the same materials. or example, gold nanoparticles are red and melt at a lower temperature than gold metal.Biomaterials:  These are natural materials, such as collagen and bone, that are often capable of self-assembly.

Wednesday, May 13, 2020

To Kill A Deer By Carol Frost And Traveling Through The Dark

The renowned Philosopher Socrates said on his death bed,†Crito, we owe a cock to Asclepius. Please, dont forget to pay the debt.†(). Socrates is stating to Crito that the greek god Asclepius (the god of curing illness) must be paid a sacrifice of homage because Asclepius is curing Socrates with a remedy of death.In this essay the poetry works of â€Å"To Kill a Deer† by Carol Frost and â€Å"Traveling Through the Dark† by William Stafford are critically contrasted as well as reviewed for macro correlation. The beseeching of the poems comparison is lead under the literary devices of Imagery, Figurative Language, and Diction; Carol Frost and William Stafford in each of their works establish an undeniable illusion to the cycle of nature along while†¦show more content†¦Stafford also drives the essence of the death far in to unavoidable realms of the poem causing vigourous imagery. Stafford describes first encountering the deer in the street,†By glow of the tail-light. . . stood by the heap, a recent killing: she had stiffed already†(Stafford ). Rotating around the body of the car a dear is found dead on the ground. The mystery of the described sight ignites a morbid scene of imagery, which Stafford conjures through description. The introduction to the dead deer contains elements to a crippling image that when held in the mind’s eye immediately triggers alarms. The word choice reinforces subtly emergence. The stanza slowly reveals the subject of the poem (death) an flushes out any and all else. The truth is presented in simple motive. The Figurative language conveyed by both Frost and Carol poetically creates the foundation for the striking imagery of the poems. Frost describes the hunt for the deer,†heard her dying, counted her last breaths like a song of dying. . . the last sun on her head like a benediction.†__Explain__. Frost describes the sunset on that day as that of a holy ceremony. Frost displays several images with figurative language,†like a benediction† within the first portion Frost is aligning death of the deer and the death of the day; thus drawing an direct line to the essence of nature and the ritual of the hunt. Frost divisively uses figurative language

Wednesday, May 6, 2020

Essay Topics for Middle School Features

Essay Topics for Middle School Features Year round school isn't a good idea. Everyone on the planet should speak English. Every American should learn how to speak Spanish. A minumum of one parent should work at home. How to Choose Essay Topics for Middle School If you don't understand how to begin your essay or where to search for supporting data, we'll be happy to help you. Just reach out to our support managers, if you've got an unusual job to do, and we'll surely find someone to aid you. On our site you will discover a lot more useful exceptional information that will certainly be helpful for junior and higher school kids from, like common home task essay about Hamlet, in addition to, for instance, application essays for college for future students. The intent of assigning an essay to middle school students is to make awareness and permit them to develop writing skills. Ok, I Think I Understand Essay Topics for Middle School, Now Tell Me About Essay Topics for Middle Sch ool! Inspiration to make your own advertising or media argumentative essay topics isn't challenging to discover. It is extremely important to pick a great topic to be able to compose an excellent paper. When you compose an essay, writing about the topic matter is just the start. Before you commence writing your essay, you should study the sources applicable to the possible subject, and make certain you have enough evidence to hold up your thesis statement. If you are searching for somebody to compose your essay, it is probable you'll also be considering the price of doing this. Sometimes, it's a great idea in order to add something funny to your argumentative essay. When you're picking your topic, bear in mind that it's much simpler to write about something which you currently have interest ineven in case you don't know a great deal about it. When you compose a resume for the very first time, it may take you some time to put everything in order and create your CV seem prese ntable. Picking a topic can be exceedingly hard process especially for those who are not familiar with a specific kind of writing. Choosing topics is a distinct skill which you should learn and practice at school, so quit procrastinating and stick to the simple tips below as a way to think of fresh ideas and make a great topic to work on. Otherwise, you've got to consider about choosing another topic. Deciding on the right topic can help you ensure a stress free method of essay writing. In the procedure for picking a topic, it's also wise to test your argument. If, for example, you're writing an essay on training a dog in 5 steps, do not incorporate the initial 3 steps within a paragraph and your own personal expertise in the conclusion. In choosing your topic, it's frequently a good notion to start out with a subject which you already have some familiarity with. Once you choose a topic, you have to answer the query and after that substantiate your response with three or more motivations as to why you think like that. Top Essay Topics for Middle School Choices Because you'll be tasked to present extensive info and explanation on the subject, you must make make certain that the topic you've chosen have relevant and credible references. You don't need to find super technical with legal argumentative essays, but make sure to do your homework on what the recent laws about your preferred topic actually say. When it has to do with writing an argumentative essay, th e most essential issue to do is to select a topic and an argument that you could really get behind. If you are a newcomer to argumentative essay writing, it is far better to choose an effortless topic. Writing a problem solution essay can be hard, particularly if you are the person choosing the topic. Test essay questions will be contingent on the topic, naturally. Researching the topic permits you to find out more about what fascinates you, and should you pick something you really like, writing the essay will be more enjoyable. Essay Topics for Middle School Explained Imagine that you're the principal of your school. Sex education needs to be taught at a lowly age. By way of example, students might write about the advantages of a vegan diet. The school day needs to be shorter. The fast food sector is liable for obesity. The very best current essay topics for middle school students is truly contingent on the type of work you're doing. You should take part in far-reaching studying to cover all elements of the subject and all point of views by different folks. Though peop le believe education is a correct and will make society, overall, a better place for everybody, others feel there's no legitimate way to provide a free college education as colleges would still have to be funded (likely through tax dollars).

Tuesday, May 5, 2020

Should Marijuana Be Legalized Arguments For And Against Essay Example For Students

Should Marijuana Be Legalized? Arguments For And Against Essay Should Marijuanabe Legalized? Arguments For and AgainstThe purpose of this paper is to discuss marijuana and compare both sidesof the issue of legalizing marijuana. We have two factions fighting eachother ; one those who are pro marijuana and those who are anti marijuana. These two factions have been fighting on this issue on the halls of justicefor years. Pro marijuana legalization groups such as the Physicians Associationfor AIDS Care, National Lymphoma Foundation argue that marijuana shouldbe legalized in order to treat terminally ill patients. Among them areAIDS victims who find that marijuana stimulates their appetites so theycan fight off dangerous emaciation; glaucoma sufferers who have used marijuanasaid it has prevented them from going blind, and cancer patients for whomit alleviates the severe nausea that is often accompanies chemotherapyand sometimes makes lifesaving treatment impossible. Due to all these lobbying groups which show substantial evidence thatmarijuana can be used as a prescribed drug. Also many advocates who arepro marijuana complain that morphine and cocaine are legal and are verydangerous drugs, that brings up the question why not legalize marijuanaas medical drug which is proven to be less dangerous than cocaine and morphine. Lobbying groups in a San Diego, California , council committee unanimouslyvoted to urge president Bill Clinton and congress to end federal restrictionsagainst the use of marijuana for legitiment medical use. City councilwomen Christine kehoe said she wanted the city of San Diego to go on therecord we support the medical use marijuana.; marijuana can be a drug ofnecessity in the treatment of AIDS, glaucoma, cancer and multiple sclerosis. Many agencies which are anti marijuana such as Drug Enforcement Agencyand police departments argue that marijuana shouldnt be legalized. Theseagencies believe that marijuana shouldnt be legalized because if marijuanais to become legal then thousands more patients using marijuana. Then peoplewill raise the question why marijuana illegal at all if its a medicine. The main reason why the Drug Enforcement Agency doesnt want marijuanato be legal is because their is no hard core evidence that proves thatmarijuana is a effective drug as a medicine. In twenty years of researchhave produced no reliable scientific proof that marijuana has medical value. The American Cancer Society , American Glaucoma Society,the National MultipleSclerosis, the American Academy of Ophthalmology , or the American MedicalAssociation , say that their is no evidence that marijuana is a medicine. The agencies also argues that no other drug prescribed is smoked andthat knew findings show that marijuana is acutely harmful to AIDS, Cancerpatients because the active ingredient in marijuana acutely reduces thethe bodies white blood cells which fight off infection. The Drug EnforcementAgency along with police departments all over the United States believe,with the legalization of drugs crime will increase due to a higher increaseof pot users which will eventually become addicts and will still or killin order to get their drugs. These are the main points and reasons why the Drug named marijuana shouldntbe legalized in the United States of America. Seeing booth sides of the issue I come to a conclusion that marijuanashould be legalized in order to help people suffering from terminal diseasessuch as AIDS, Cancer and Glaucoma. Prohibition of marijuana over the pastdecades hasnt deminshed the demand of the drug in the United States. Theuse of marijuana has acutely went up due to the mass attention given tomarijuana by rappers such as Cypress Hill who promote the use of marijuanaas a social drug. But I believe that marijuana is here to stay in our societyand is only going through the stages that alcohol had during the prohibitionera. .u4a363158dd5bdde5f5806d8ff6e21753 , .u4a363158dd5bdde5f5806d8ff6e21753 .postImageUrl , .u4a363158dd5bdde5f5806d8ff6e21753 .centered-text-area { min-height: 80px; position: relative; } .u4a363158dd5bdde5f5806d8ff6e21753 , .u4a363158dd5bdde5f5806d8ff6e21753:hover , .u4a363158dd5bdde5f5806d8ff6e21753:visited , .u4a363158dd5bdde5f5806d8ff6e21753:active { border:0!important; } .u4a363158dd5bdde5f5806d8ff6e21753 .clearfix:after { content: ""; display: table; clear: both; } .u4a363158dd5bdde5f5806d8ff6e21753 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u4a363158dd5bdde5f5806d8ff6e21753:active , .u4a363158dd5bdde5f5806d8ff6e21753:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u4a363158dd5bdde5f5806d8ff6e21753 .centered-text-area { width: 100%; position: relative ; } .u4a363158dd5bdde5f5806d8ff6e21753 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u4a363158dd5bdde5f5806d8ff6e21753 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u4a363158dd5bdde5f5806d8ff6e21753 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(; position: absolute; right: 0; top: 0; } .u4a363158dd5bdde5f5806d8ff6e21753:hover .ctaButton { background-color: #34495E!important; } .u4a363158dd5bdde5f5806d8ff6e21753 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u4a363158dd5bdde5f5806d8ff6e21753 .u4a363158dd5bdde5f5806d8ff6e21753-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u4a363158dd5bdde5f5806d8ff6e21753:after { content: ""; display: block; clear: both; } READ: A Good Man Is Hard To Find EssayMarijuana will become legal due to the knew administration which isliberal and whos leader , president Bill Clinton who had acutely usedmarijuana during the nineteen sixties. Due to all these factors marijuanawill become more widely accepted by the American people who will pressurecongress to rewrite the laws on the drug marijuana. Now its only a matterof time before lobbying groups pressure the legislature to legalize it. Due to legalization many states will be able to grow marijuana as a cashcrop, and the United States government will be able to tax marijuana andmake revenue off it. The revenue made from marijuana will be in the millionswhich can be used for drug rehabs and anti drug programs targeted at elementarychildren. Still by seeing both sides of the issue Im still one hundredpercent pro marijuana because I use it socially and I believe its lessharmful than beer or liquor because with marijuana you cant overdose.

Friday, April 3, 2020

Zaevon Prince Essays (409 words) - Education, Educational Psychology

Zaevon Prince 25 February 2016 The use of the Laptop with in the University There are many factors that play into the debate upon students use of laptops during lectures, in universities all over the country. Undergraduate students begin to feel limited to the variety of ways they are allowed to take notes; as well as a high percentage of graduate students ranging in the ages of twenty-three to twenty-seven. This is a common misconception when it comes to both the relationship between the professor and the student. Many students believe that the use of the laptop encourages students to presumably fact check, and or go beyond lecture in order to understand the topic at hand. In many ways, a respectfully amount of Professors believe that students in both Unde rgrad and Graduate are easily distracted by the device and are easily able to drift off from lecture to endure other endeavors outside of appropriate classroom etiquette. This causes a divide amongst both students and professors, which some students agree that the use of the laptop in class is some thing that helps improve the way they take notes. While some Professors believe that the use of them are a distraction and takes away from the concentration of lecture. In the article, there is an evident divide amongst the classroom etiquette, and the use of laptops in the case of note taking and following lecture. According to the article, it suggests that the majority of students are concrete about having their laptops in class during lecture. The article also suggest that Professors also have their concerns about the level of engagement within the classroom and the level of professionalism when it comes to the use of laptops in class. The article also indicates that there is a level of expectation from both the student and the Professor. This article is an example of the way many professors all over the country are reacting as to why students us the laptop in order to take notes, and or use it during that time for other purposes. This is a very alarming situation, primarily because it is a common debate amongst University staff here at Bowie State. Many professors believe that students should remain opened to working without the la ptop and stick to pen and paper. Although, there is a divide amongst teachers and students; students seem to maneuver between focus and being distracted.

Sunday, March 8, 2020

Investigating the Power of a Diverging Lens Essays

Investigating the Power of a Diverging Lens Essays Investigating the Power of a Diverging Lens Essay Investigating the Power of a Diverging Lens Essay Aim: To find the power of a given diverging lens by using a pre-selected converging lens. Outline: The power of two lenses placed together in line to an object will allow both of their powers to add together. P1 + P2 = Ptotal Therefore, by using a combination of 2 lenses, one of which the power is known, I can find the focal length of the combination of lenses and then calculate the total power. The power of the converging lens can be subtracted from the total power to find the power of the diverging lens. Variables: Independent: Object distance Dependent: Image distance Control: Object size and shape, power of both lenses, material of both lenses In my pre-tests, I have found that I obtain a reasonable range of results using a converging lens of 10 Dioptres that is larger than the power of the diverging lens therefore giving reasonable results. Method: 1. Set up apparatus as shown in diagram. 2. Adhere the unknown diverging lens to the known, pre-selected converging lens with plasticine ensuring that the plasticine does not interfere with the light i.e. the plasticine does not cover the main central portion of the lenses. 3. Fix the lenses on to the stand with plasticine, making sure that they are perpendicular to the ground therefore the light that falls upon the light will be in line with the normal at the centre of the lenses. 4. Use a piece of card with a triangular hole in it with mesh stuck over the top to be used as the object, one, to block out most of the light to prevent shadows forming, two, it discern whether the image was formed inverted or not, three, the mesh helps me judge when the image is at its clearest. 5. The light, object, lens stand, lens and screen will be arranged in a straight line and kept in a straight line, so that there wont be any undue error caused in the measuring of object and image distances from the centre of the lens, parallel to the metre ruler used to measure the distances. 6. The object distance can then be varied to give difference image distances from which the power of the combined lenses can be calculated. 7. The screen will be held perpendicular to the table to ensure that the measuring is accurate and the image will be formed properly. 8. There will be a range of distances from the lens, which the image will be judged as to being clear and this range will be recorded. 9. Repeat experiment with at least 6 difference object distances 10. Carefully repeat all measurements 11. Use the results to plot a graph to find the power of the combined lenses. Safety: Having considered the safety aspects of the experiment, I am confident that normal safety procedures are adequate and there is no particular danger in this experiment apart from the fact that the light could heat up to rather high temperatures. The electrical equipment should also be handled with more care because of the possible electrical hazard. Uncertainties and Errors Extensive pre-testing proves that the following are likely sources of uncertainty and error. 1. Uncertainties in measurements Length. The metre ruler is accurate to à ¯Ã‚ ¿Ã‚ ½ 0.001 metres, however, the range over which the image is clear vary around à ¯Ã‚ ¿Ã‚ ½ 0.020 metres this value may change as clarity of the image may change with distance. A range can be measured, but those upper and lower boundaries will also be affected by the error in measurement by the ruler therefore if the range is à ¯Ã‚ ¿Ã‚ ½ 0.020 metres, the range including measurement errors is à ¯Ã‚ ¿Ã‚ ½ 0.021 metres. 2. Errors in the Experiment Distance between lenses and the thin lens formula. Errors will occur because the light will converge inside the space between the two lenses, therefore the focal distance will be incorrect. If the light converges between the lenses, then the light that hits the second lens will have converged and therefore the focal length will change, as shown in the diagram, Large Gap Small Gap There must always be a space between them, because they are not one lens the only possibility is that if both their curvatures were equal, then their powers would cancel out (the converging lens has a positive power, diverging has same power, but negative) and then the light emitted would be parallel, therefore no image will be formed at any point and the power cannot be calculated. Also, the thin lens formula is only an approximate model to finding the power of thin lenses, this is because the formula applies 100% accurate only to a infinitely thin lens, but because all lenses will have a certain thickness, the formula can only give a good approximation. The thinner the lens, the better the approximation given by the formula. Errors in judgement of which position creates the clearest image is the probably the most significant error in the entire investigation because there may be a range of positions where the image appears to be clear. Therefore a range of values will be taken as the position for the maximum clarity of an image thereby reducing the error that could be involved and also means, graphically, that a best fit line can be drawn within the error bars that fit the hypothesis. Analysis After collecting all the results, I can plot the range of values of each different object distance with their corresponding image distance. To draw this graph and obtain a linear relationship, I can rearrange the thin lens formula to the linear graph form y = mx + c where y and x are variables, m is the gradient of the line and c is the y-intercept. Where and but, because the formula can also be arranged thus, That means that will be both the y-intercept and the x-intercept, therefore giving a graph like this, where both intercepts are equal to the power (Power = reciprocal of focal length, P = f-1) I will also include error analysis, which is shown here with a set of pre-test data using a converging lens of 10 dioptres, TABLE 1 Object Distance (m) Minimum Length for Clarity (m) Maximum Length for Clarity (m) Mean Length for Clarity (m) Subsequent Power of Diverging Lens (D) Error in measurement (m) 0.550 0.660 0.700 0.680 -6.71 à ¯Ã‚ ¿Ã‚ ½ 0.001 0.500 0.750 0.790 0.770 -6.70 à ¯Ã‚ ¿Ã‚ ½ 0.001 0.450 0.830 0.870 0.850 -6.60 à ¯Ã‚ ¿Ã‚ ½ 0.001 0.400 0.930 0.970 0.950 -6.45 à ¯Ã‚ ¿Ã‚ ½ 0.001 0.350 2.230 2.270 2.250 -6.69 à ¯Ã‚ ¿Ã‚ ½ 0.001 Then the error in the object, image minimum, image maximum and image mean length will be à ¯Ã‚ ¿Ã‚ ½0.001 but because the lengths are made into reciprocals, their errors become neither absolute nor percentage, therefore to calculate it, the maximum and minimum values must be used, so there will be 2 more columns where the error is added to the values, TABLE 2 Absolute Minimum Length for Clarity (m) Absolute Maximum Length for Clarity (m) 0.659 0.701 0.749 0.791 0.829 0.871 0.929 0.971 2.229 2.271 If the values themselves are used to calculate the power of the diverging lens mathematically, it would be as such, including Table 1 TABLE 3 Lower Boundary Power (D) Upper Boundary Power (D) Mean Power (D) Error of Mean Power (D) -6.670 -6.750 -6.710 à ¯Ã‚ ¿Ã‚ ½0.040 -6.670 -6.700 -6.685 à ¯Ã‚ ¿Ã‚ ½0.015 -6.570 -6.620 -6.595 à ¯Ã‚ ¿Ã‚ ½0.025 -6.420 -6.460 -6.440 à ¯Ã‚ ¿Ã‚ ½0.020 -6.690 -6.700 -6.695 à ¯Ã‚ ¿Ã‚ ½0.005 Average -6.625 à ¯Ã‚ ¿Ã‚ ½0.021 Therefore the power of the diverging lens is -6.625 dioptres with an error of à ¯Ã‚ ¿Ã‚ ½ 0.021. The graph can be drawn including these errors, and it makes it possible to draw a graph with a linear relationship where the x and y intercepts are equal within the range of the error of the results to find the correct power of the diverging lens. See graph of pre-test results. From the graph, the intercepts are at 3.3 D, therefore the resultant power of the combined lenses is 3.3 D. The pre-selected lens is 10 D, therefore, 10 + d = 3.3 ? d = 3.3 10 ? d = -6.7 D So, the power of the diverging lens is -6.7 dioptres.

Thursday, February 20, 2020

Living Together Before Marriage as a Controversial Topic Research Paper - 7

Living Together Before Marriage as a Controversial Topic - Research Paper Example The people who strongly oppose couples living together prior to marriage stress the significance of adhering to traditional beliefs in the sacrament of marriage. The previous generation has always supported the need for marriage before their children could live with a person not yet considered one’s spouse. The belief marriage is more than a mutual agreement, but more so, a sacrament blessed by Divine Power is prevalent in major religions. Those couples who decide to get married have their unions blessed and are therefore believed to endure challenges and trials ‘until death do them part’. On the contrary, supporters of those who believe that living together is an agreement that is more beneficial indicate that disagreement from various sectors is not fully justified. Although the majority of people believe that living together is, in fact, going against the norm by asserting that â€Å"cohabitors are partially rejecting society's dominant value system. Those peo ple who enter cohabitation relationships tend to perceive social rules in flexible terms† (Cohabitation, par. 11). A glimpse on the research on contemporary generation has proven that â€Å"young couples are most accepting of cohabitation, and it is likely that it will become increasingly popular over time† (Barlow, Duncan, James, and Park, 1). In this regard, there are lesser social pressures or stigma associated with couples who opt to live together prior to marriage. Living together before marriage gives more benefits as long as the couples are physical, emotionally, economically mature to acknowledge the responsibilities and accountabilities that go with the agreement.