Executive Summary Essay Example | Topics and Well Written Essays - 500 words - 16

Executive Summary - Essay Example The graph below shows the increase in illegal apartments in New York between 1983 and 2013. Despite the opposing views on illegal housing units and its impact to New York, reforms are key to ensure that people access affordable safe habitable housing, as opposed to expensive and luxurious housing. The DOB issues annually more than 4,440 violations for illegal conversion of basements, cellars, and attics: - which are not fit for human occupancy due to health and safety risks. These violations can end only by adjusting the The New York City Building or Housing Maintenance code, Article 5- Occupancy of cellars and basements. Amending the policy will guarantee that the priority of the city council to ensure safety for its tenants is achieved. City officials mandated to provide proper and affordable housing are required to consider this proposal to make sure that no city dweller dies or falls sick due to the pathetic unsafe conditions of the illegal housing units. Suggested opinions to warrant safe housing units include introducing policies on; Asthma free housing, issuing of rental permits, yearly remodeling to maintain policies, and provision of adequate finances for building safe units. These measures ensure equality and safety for all the tenants who are inconvenienced by the existing policy regulations. Stakeholders’ decision to permit these changes will effect change and eradicate conflict with authorities Political and financial constraints may delay the achievement of the above suggestions. However, it is necessary to consider these options to increase the sustainability of the reforms. Political goodwill towards this policy will guarantee fairness and equity for the tenants and give room for other amendments of this nature to ensure a comfortable nation. With this effect, institutions have the responsibility to address

The Physics Of An Earthquake :: essays research papers

Earthquakes are vibrations produced in the earth's outer layer, or crust, when forces pushing on a mass of rock overcome the friction holding the rock in place and blocks of rock slip against each other. The vibrations can range from barely noticeable to verry destructive. There are six types of shock waves. Two are classified as body waves which means they travel through the earth's interior and the other four are surface waves. The waves are changed by the rock types or formations they hit. Primary or compressional waves (P waves) send particles moveing back and forth in the same direction as the waves are traveling, secondary or transverse shear waves (S waves) send vibrations perpendicular to their direction of travel. P waves always travel at higher velocities than S waves. Three general classes of earthquakes are now recognized as tectonic, volcanic, and artificially produced. The tectonic variety is by far the most destructive. The most commen cause of tectonic quakes is stre sses by movements of the dozen of major and minor plates that make up the earth's crust . Most tectonic quakes occur at the boundaries of these plates, in zones where one plate slides past another Subduction-zone quakes account for nearly half of the world's destructive seismic events and 75 percent of the earth's seismic energy. They are along the so-called Ring of Fire, a narrow band about 38,600 km long, that coincides with the sides of the Pacific Ocean. The points at which crustal rupture occurs in such quakes tend to be far below the earth's surface, at depths of up to 645 km. Not all subduction zones are subject to frequent earthquakes. The frequency and magnitude of earthquakes around subduction zones are related to the direction in which the plates are moving. If two plates moving in the same general direction come close together, generally the edge of one plate will slide below the other at a sharp angle. This reduces the amount of area in which the plates touch, so the subduction zone does not produce many earthquakes and any earthquakes it does produce are not as strong. If two plates are sliding beside each other, one plate will often be forced under the other at a shallow angle, making a large area of friction. This produces more frequent, stronger earthquakes. Tectonic earthquakes beyond the Ring of Fire occur in a variety of geological settings.

Properties of Light

Danielle Silverstein PHY 101 Section 10497 March 4, 2013 Light up this World Purpose: In this lab experiment, LED lights will be used to show how when E&M radiation is absorbed, the energy is converted to heat. A drop of isopropyl alcohol will absorb light energy of different colors, and the evaporation rate of the alcohol will be measured. The key to this lab is the evaporation rate is directly related to the energy of the light shining on the drop. Materials: * * LEDs and circuits (from previous lab) * Pipette (or eyedropper) * Rubbing alcohol Index card * 9-volt battery * Flashlight * Stopwatch * Small cardboard box (shoe box) Procedures: A three-sided enclosure from the cardboard box was made. This created a location for applying light from the LED to the drop of alcohol while minimizing the effect of air currents on the evaporation rate. The eyedropper was used to place a single drop of isopropyl alcohol on an index card within the enclosure. The same size drop was used each tim e the step was repeated. The time it takes for the drop to evaporate without the LED present was recorded.The dark spot on the card caused by the alcohol was no longer visible. A flashlight was used to help with the observance of the dark spot. The evaporation time was recorded. The same procedure was repeated for the different colored LEDs over the alcohol drop. The current through each LED and the distance from the LED to the drop of alcohol was the same for each run. The procedure for each color of LED was repeated at least 10 times and an average time of evaporation for each color was calculated. A graph of evaporation time versus frequency of the LED was then made. Data: Time it took to dry the drop (minutes) | | | | |With no light= 10 minutes | | | | | |Red(minutes) |Green(minutes) |Blue(minutes) | |1 |4:43 |5:15 |3:30 | |2 |4:49 |3:59 |3:14 | |3 |5:03 |4:55 |4:07 | |4 |5:23 |3:48 |3:13 | |5 |4:00 |4:26 |3:26 | |6 |5:04 |4:47 |3:37 | |7 |4:35 |4:20 |3:25 | |8 |5:25 |3: 54 |3:10 | |9 |4:30 |5:05 |3:40 | |10 |4:45 |4:15 |3:56 | | | | | | | | | | | | | | | | | | | | |Frequencies(Hz): |4. 3 ·10-14 |6. 0 ·10-14 |6. 67 ·10-14 | | | | | | | | | | | |Average Time(s): |4:49 |4:28 |3:31 | [pic] Results: The results show that red had the lowest frequency and used the least amount of energy, green was in the middle of the two other colors with a frequency of 6.  ·10-14 and blue had the highest frequency of 6. 67 ·10-14 Conclusion: Light is range of the electromagnetic spectrum detectable by the naked human eye. The spectrum also includes radio waves all the way up to gamma rays, and light falls about in the middle. Electromagnetic radiation combines both particles and waves in nature. Electromagnetic radiation can also be described in terms of a stream of photons. These are massless particles traveling with wavelike properties at the speed of light. For example, the changing electric and magnetic fields in space form electromagnetic waves (Library Thinking Quest). The colors on the spectrum vary from red to violet.The red light has a lower energy than the violet light that’s at the end of the spectrum. The frequency of the light increases as the color of the light changes from red to violet. Wavelength and frequency are inversely proportional, which causes the wavelength to decrease as the color changes from red to violet (Hewitt, pg. 520). Depending on the color of the light, the wavelength can range from 7Ãâ€"10-5 cm (red) to 4Ãâ€"10-5 cm (violet), but all electromagnetic radiation travels at the speed of light. The frequency of the light, which is the number of wavelengths per seconds is calculated using the equation C=LN. L is the wavelength, N is the frequency, and C is the speed of light (Library Thinking Quest).From the observations collected, the red LED light took the longest to dry the drop of alcohol and the blue dried it the fastest. Since the red light is on the lower end of the electromagnetic spectrum is used the lowest amount of energy. Just by looking at the brightness of the light, this conclusion was made but reassured after doing some research. The red light was very dim and faint compared to the brightness of the green and the blue. The blue was the brightest of the lights. This light used the most energy and is one of the farthest on the spectrum beside violet. Since the frequency of light increases as the color of light moves down the spectrum, the red light has the smallest frequency of 4. 2*10-14, green has middle frequency of 5. 66*10-14 and blue has the largest frequency of 6. 37*10-14. The frequency is directly proportional to the energy produced by each of the light, which is shown in the graph above. The blue light had the highest frequency and that used the most energy. The red LED used the least amount of energy because it had the lowest frequency. The greater the frequency caused the alcohol to dry faster since it used more heat (energy) at one time. Light energ y and frequency are directly related in the real world also. Typically since red lights have less energy than blues lights, blue objects are said to be hotter.In 1923, American astronomer Edwin Hubble (1889-1953) made an astounding discovery. As Hubble observed, the light waves from distant galaxies are shifted to the red end, and he reasoned that this must mean those galaxies are moving away from the Milky Way. These observations concluded that something that showed red was moving away from its observer. The laws of thermodynamics state that where heat is involved, the movement is always away from an area of high temperature and toward an area of low temperature. Heated molecules that reflect red light are areas that are moving toward an area of low temperature. Molecules of low temperature reflect bluish or purple light because the tendency of heat is to move toward them.Fire, for example, it lets off heat to keep people warm. The color of fire is mostly red and orange. These colo rs are at the lower end of the spectrum of light. The reason why fire is the color red is because; red gives off the lowest amount of energy because it has the lowest frequency. Fire can be used in many different ways in the world without using mass amount of energy to heat things up. As mentioned in the lab from last week, the alligator clips caused a lot of issues with holing the connections together. A better material would be the connection covers where the wires go inside a little tube and are squeezed together at each end to insure security.When the light went out due to the connection, it caused created a longer time for the alcohol drop to dry. This created some error in the experiment with the time and the overall average. [pic]References: †¢ Hewitt, P. G. (1998). Chapter 23,24. Conceptual physics (8th ed. , pp. 494-550). Reading, Mass. : Addison Wesley. †¢ Lesson 9 Electricity. (n. d. ). PHY 101 . Retrieved February 9, 201328, 2013, from https://www. riolearn. or g/content/phy/phy101/PHY101_INTER_0000_v4/lessons/lesson08. shtml? encrypted-sectionid=am5lN0s1VHdrNkRZdEdaK3ZBR3dSdz09 †¢ â€Å"The Physics of Light: What Is Light?. † ThinkQuest : Library. N. p. , n. d. Web. 19 Mar. 2013.

Persuasive Essay On Volunteering - 756 Words

Volunteering sounds like the honorable responsible thing to do it provides benefits to both your mental and physical health. Be very realistic, you will likely not transform the world by volunteering. You need to be adaptable and willing to adjust your opportunities and plans. According to this week’s reading you shouldn’t be disappointed if all your brilliant plans of making a difference don’t move forward and work out like you had hoped. In all reality, you defiantly still affect the people you met, and your influence will probably be seen in years to come. An opportunity to give back, share your skills and knowledge and learn about other people and cultures are just a few of the reasons people choose to volunteer. There is a massive†¦show more content†¦While researching more on this topic I found that there has been an increase in the building of orphanages because of a promise of an improved ‘western’ life, parents in third world coun tries are willing to give up their children for better access to food, water and education. In a recent study, approximately 70% of children living in orphanages are not actually orphans, parents are led to believe they will have a better life but in all reality, it is just padding the pockets of the lucrative orphanage owner. It is excruciatingly apparent that the development of ‘voluntourism’ has led to the misuse of children for personal financial gains. Unless volunteers have the proper leadership and training they could very possibly be doing more harm than good. Volunteering is supposed to be a beneficial act of donating your time and knowledge to people who have less than you. These are a few of the ways I would ensure I avoided pitfalls and harms on my voluntourism trip. I would keep things positive, spending the time to complete projects properly with the right materials and following a project to completion. I would steer clear of volunteering at orphanages it leads to many more problems. Instead I could donate money, clothing or other items to families in need, so they can stay together as a family and improve their quality of life. Everyone has good intentions, know exactly who you are working with and what you will be doing. I would do myShow MoreRelatedEssay about Persuasive Speech: The Benefits of Volunteering1127 Words   |  5 PagesStatement: Volunteering in your local community will help those around you and help you feel like you have contributed something positive and it is easier than most people think. C. Speaker Credibility Statement: If we all did our part to help those in need, our community would be a better and safer place to live. 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