Essays on Temperature

Introduction

The objective of this experiment is to study the effect of a solute on the freezing point of a solvent. When a solute is added to a pure solvent, the freezing point of the solvent is lowered as compared to its pure form. This decrease in freezing point of the solvent is known as “Freezing Point Depression”. A similar phenomenon occurs in the boiling of such solvents, but instead of decreasing, the boiling point is increased due to the addition of the solute. This phenomenon is known as “Boiling Point Elevation”. Such phenomena, including others, are known as colligative ...

Cell culture is an in-vitro technique of cultivating cells under controlled conditions and in sterile conditions. The technique was first developed by Ross Harrison in 1907. During the process of cell culture, the cells are detached from their tissue of origin and segregated from each other, either by mechanical or enzymatic means. The detached cells are then transferred before culturing them in cell culture plate or flask. The first generation of producing cell through this method is called primary cell culture. The cells from the primary culture are transferred to a new culture plate with a fresh medium to ...

The main role of roof shingles is to form a layer of protection around a building in order to protect the structure from extreme weather changes, thereby reducing maintenance costs and increasing the value of a property . When it comes to selecting a material to be used in these shingles, there are options to choose between asphalt singles, organic shingles and tile shingles. Amongst all of these, asphalt shingles offer the twin benefit of affordability and durability. However for structures that are constructed in geographical regions where there are sudden and extreme temperature changes, asphalt shingles do not prove ...

The article by Tatiana Schlossberg presents a simple and clear explanation of the close future of air conditioning systems and their influence on global warming (“How Bad Is Your Air-Conditioner for the Planet?”, 2016) Year by year the Earth becomes a hotter place to live and so far almost 90% of American homes have air conditioners. On the one hand, it allows to develop South and Southwest of the country, yet on the other, it leads to the construction of less energy-efficient buildings. In addition, air conditioners emit HFC gas, or hydrofluorocarbons, which traps the heat in the atmosphere ...

HadCM3 stands for Hadley Center Coupling model version three. This global climate model (GCM) was developed by the Met Office Hadley Center for Climate Science and Services in 2000, and was used as one of the major GCM ever since, starting from the Third Assessment Report by the Intergovernmental Panel on Climate Change in 2001. The model includes two elements – HadAm3 (for atmospheric modeling) and HadOM3 (for oceanic modeling), therefore forming a coupling assessment model. The GCM was a further development of the previous model HadCM2, also developed at Hadley (Bloom, 184).

Model description

The model includes 2 elements for the ...

In countries around the world, children are suffering and dying from malnutrition, disease, and poverty secondary to drought or flooding. Changes in climate create many risks to the lives of children and their families as they struggle to survive in areas where food is difficult to grow and workers are poorly paid. Due to the increase in temperature and extreme weather conditions brought on by climate change, many communities are expected to suffer scarcity of clean water with the result of perilous diseases and health complications. Disasters and humanitarian crises may bring long-term displacements and disruption to educational, health, ...

Abstract

Scholars across the board have been persistent on the need for the near perfection of the concept of vital signs monitoring. Prior contributions to this field of knowledge all seem to bend towards correcting the wrongs that at times overwhelm the nursing practice, while at the same time constructing updates and ingenious suggestions towards the bettering of methods of monitoring vital signs. This paper cuts across the dimensions of nursing practice as applied in a reflective situation, and the evaluative outlook into the perks of vital signs monitoring as a physiological assessment process, its outcomes, and its repercussions both ...

Paraguay is a landlocked country covering an average of 406750 square kilometers. It is located in South America. Its prominent physical feature of the country is the Paraguay River that separates the country into two regions with distinct differences in climate, and land topography. Industrialization and other human activities have adversely affected the country’s environment. The current environmental issues are water pollution caused by industrial discharges into rivers and streams, deforestation and encroachment into wetlands. The rate of deforestation is quite high due to weak government policies on deforestation and weak implementation of forest protection policies. The country ...

The environment of Nepal was affected by deforestation, encroachment, and soil erosion. There is also contamination in its water. Back in the 1970s, the country’s forestland decreased from 30% to 22% of its overall area. This was due to the timber of firewood which was the source of fuel in Nepal. Erosion also caused the decrease in land which was about 240 million cu m of topsoil every year. In 1957, the forests of Nepal were already nationalized but there were few deforestation activities that were done. However, in 1980, the country started a deforestation program which included ...

Advancements in aircraft reciprocating engines

Introduction There is a misconception that because modern aircraft engines built by Lycoming, Continental and other companies have similar look to engines used in general aviation aircrafts of the 1970s, there have been no technological advancements in this field. Even though new engines haven’t changed much by outward appearances, aircraft reciprocating engine technologies have advanced dramatically in past two decades. The overall build quality of engine has greatly improved. Advancements in machining technologies and automatic manufacturing processes made it possible for aircraft engine makers to enhance machine’s durability. Many components of piston engines have been significantly improved, ...

Global warming refers to the phenomenon due to which the average global temperature rises by a few degrees over a specified period of time, or as the time passes. The concern that this raises is that if the temperature keeps on rising every few years or so, it is not hard to imagine what would be its effects to the global climate and environment over the next few decades. The rise of a few degrees in a few years is not much of an issue; however, if this rise is consistent, that is where the concern of most of ...

Abstract

The ecological settings in an ecosystem change from time to time. The changes in the ecological settings are brought about by a plethora of factors. Through evolution, the organisms that live in the ecosystem also change to adapt to the aforementioned ecological changes. The adaptation of the organisms to the ecological changes yields variations because different organisms and even organisms of the same species are exposed to the elements to different levels. Man has a significant role to play in the ecological changes. Through his economic activities, the effect on ecosystems has been both positive and negative. Urbanization as ...

Question 1

Dittenhoefer Fine Company of China is competing on several dimensions. To begin with, the company will compete on customer service. Irrespective of how good the product is, the product may start to get bad reviews with bad customer service. If there is no improvement in the customer service, then the number of orders made may experience a sharp decline. The second quality dimension that the company can compete on is reliability. Prior to the introduction of the polymer coating machine, the company boasted of a good reliability record. However, a lot of reliability issues have been experienced over the ...

Rising sea temperatures

Rising sea temperatures are disturbing the ecosystem of the Great Barrier Reef, and if it continues, it will cause major disturbances in the coastal region. Temperature regulates the distribution and the variety of the marine life species, and it also maintains the growth of the coral reef. Over the years, these have grown and evolved with time. When a certain limit of the temperature is exceeded, it can cause the tiny algae inside to be expelled out which causes the coloration of the corals to change. The corals die because of this as they suffer from a lack of ...

Global warming describes the gradual increase in Earth’s and its oceans’ temperature that changes the Earth’s climate. It shows that the Earth’s temperature increases due to the effect of greenhouses gases such as extensive emission of carbon dioxide (CO2) due to different factors. It is observed that human activity is the important cause of global warning that influenced the physical mechanism of climate change.

Effect of greenhouse gases in changing the Earth's temperature

Scientists have identified a record variation in Earth's climate dating back hundreds of thousands of years. Significant difference in Earth's climate has reported during the present day and the last 650,000 ...

Lab report: electrical conductance

Lab report: electrical conductance

Introduction

Electrical conductance is the property of an electrical conductor that determines how fast it contacts – how easily current flows through it (Shaw, 1911, p. 281). When a potential difference is applied across various types of conductors, current flows through the conductors at different rates. The rate at which the current flows through a particular conductor for a particular potential difference is dependent on the specific property of the conductor, referred to as electrical conductance. Conductance determines how well current flows through a particular conductor. Conductance is the inverse (reciprocal) of the property of the conductor ...

Climate change poses many risks to the lives of children. Because of the increase in temperature and extreme weather conditions brought by climate change, many communities are expected to suffer from food and water scarcity and perilous diseases and health complications. More disasters and humanitarian crises would bring long-term displacements and disruption to educational and economic activities (UNICEF, p.8). Given this situation, the future of children at the worldwide scale remains under peril. Governments and other agencies concerned on the welfare of children must do something to address this worsening situation, or the children will pay the price. Climate ...

All the nations of the earth both developed and developing countries has to deal and cope with the demands of the climate change. China is, therefore, not an exception. China has to deal with a wide range of climates from the tropics and deserts. Climate can be viewed in three dimensions, in that climate constraints economy and society, and the climate is a hazard and can bring about other disasters and hazards. In recent research, the Chinese culture has not yet developed as fast as other nations of the world though some argue that China had the start in ...

Weathering and erosion are two basic events that take place on earth as part of the wear and tear of the natural resources like rocks, soils, and plants and trees that cover the earth. Closely observing weathering and erosion will help understand how the surface of the planet has been changing over the past several years and how it will change in the future as well. Weathering is the process through which rocks on the surface of the earth gradually break down into small pieces. On the other hand, erosion is the process through which the broken pieces and ...

My town of choice was Lisbon, Portugal. The longitude is -9.139337 and the latitude is 38.722252. It is the capital and the largest city in Portugal, with a population of 552,700. It is the 11th most populous urban area in the European Union. It is continental Europe's westernmost capital city and the only one along the Atlantic coast. It is one of the oldest cities in the world, and is recognized as a global city because of its importance in finance, commerce, media, entertainment, arts, international trade, education and tourism. I chose Lisbon because I traveled there one ...

Introduction

The issue of global warming has recently become more contentious. Ideally, a great debate exists among numerous individuals on whether it is real. According to MacMillan (Par. 1), the average global temperature over the past fifty years has risen at the most rapid rate in recorded history. In essence, the climate scientists connect the warming of the oceans and atmosphere, a strong decrease in the sea ice, and ocean level rise, among other climate-associated changes to the rise in the global temperature. The greenhouse gasses including carbon dioxide, water vapor, methane, and nitrous oxide contribute to global warming by ...

Introduction

Thalmic Labs is a software- and hardware-company primarily based in Canada. Its primary product is digital devices aimed for the Canadian sector. The company caters to individuals and organizations, connecting people and providing network capabilities. It has partnered with relevant companies in Canada and North America, such as Intel and Microsoft. Its main program of e-waste management is effective, which includes “cradle to “cradle,” and recycling of electronic materials and devices known as the “Buyback” program, where the company buys back used cell phones and gadgets. ThalmicLabs buys back used mobile devices from customers, no matter how aged they ...

The countries and the world at large are facing many different crises currently. Different experts have come up with ways to predict the occurrence of different crisis in the near future. These predictions are important as they may give out information on how to prevent or overcome the crises, which mostly have adverse effects such as loss of lives or affect other crucial phenomena. I am going to cover predictions about climate change.

Summary

Climate change refers to the increment in global temperatures. There are several factors that lead to climate change such as natural events and human induced activities. ...

Humanity has developed and flourished over the span of centuries. As civilizations grew and develop, humans learn many things about nature. Ancient people realized the benefits of nature to humanity and began using it for hunting food, acquiring resources to build homes and to protect them from numerous threats from the environment. As humans learned other benefits of nature, they started to interfere with the environment and greatly change the way it was used. People started to change the structures of land and to remove trees from the forest in order to build farm lands and cities. People continue ...

The videos are about the demonstration of a small-scale greenhouse effect. They used carbon dioxide and methane to demonstrate that when these greenhouse gases are in higher concentration, it could increase the atmospheric temperature. In these experiments, the results show that when carbon dioxide and methane are added to the normal air condition, the increase in temperature due to the lamp is higher. This is considered as a laboratory-scale evidence of the greenhouse effect which is occurring in global scale. The results demonstrated in the experiments are new to me. I already knew that greenhouse gases are the main ...

The Greek islands have many opportunities for travelers, and it has become one of the most sought-after vacation spots in the world. These islands are historic for their beauty, with many worldwide travelers coming here for centuries for what th”ey believe to be healing properties. Recent visitors may or may not believe in healing waters or sun powers, but they are interested in a chance to be spoiled, get away, and enjoy the island’s vast natural offerings, as well as the luxuries of the sister islands and the ocean. Mykonos, part of the Cyclades island chain, is ...

Abstract

The study of tiny particles and their applications have emerged as an important area of research in recent years. In particular, magnetic nanoparticles have attracted considerable attention due to their unique properties that make the particles useful in numerous applications. Accordingly, the present review investigates the synthesis, characterization, and biomedical applications of magnetic nanoparticles. The introduction section examines recent advances in nanotechnology and explains the significance of magnetic nanoparticles in scientific research. The section on results and discussion presents the findings of various researchers with a focus on the magnetic properties, synthesis, characterization, and biomedical applications of magnetic nanoparticles. ...

Abstract

The separation processes in industry are a common practice especially in the developed countries as well as in the developing world. As a result, it is a good step to improve the separation techniques to ensure a better process for the production of the finished commodities. The classification of the distillation columns and the packed bed columns together with an analysis of their ability to perform efficiently in the industry is vital. Therefore, the paper entails an analysis of each group of distillation columns, taking into account their ability to carry out their duties, as well as the reason ...

Raman spectroscopy is dependent on scattering of light. When light interacts with matter, energy exchange can take place through absorption, simulated emission, Raman scattering or spontaneous emission. In Raman scattering, the emitted photons have less energy and lower frequency in comparison with the absorbed photons. Some energy of the emitted photons is transferred to the molecules. Raman spectroscopy is a method which collects the chemical fingerprints associated with molecules. Every molecule has different levels of vibrational energy and the emitted photons experience shift in their wavelengths. The wavelength shifts are collected,examined and analyzed for sample identification. Raman spectroscopy ...

(Tutor’s Name) (Assignment)

Summary Report 1

What factors contributed to the problem? Volcanic activity is a major contributing factor to the issue of climate change. The eruption of volcanoes leads to the release of large quantities of water vapor, ash, dust, carbon dioxide, and sulfur dioxide into the atmosphere. In the atmosphere, these sulfur dioxide molecules will react with water vapor leading to the formation of sulfuric acid, which is then spread all over the world through winds. The sulfuric acid formed in the atmosphere can significantly affect the amount of solar radiation entering the Earth’s surface and thereby the ...

Introduction

Every parent envisions a future where their children and grandchildren live in a rich and resourceful environment that essentially provides them with everything that they need to survive. However, what if parents were informed of a pending doom where their children will live in an extremely toxic environment where there aren't enough basic resources such as fresh drinking water or where the climate is comprised of harsh conditions that threaten their lives on a daily basis? What if they were informed that by the time their children are adults, a diverse range of the existing species of animals will ...

Introduction

Carbon Capture and Sequestration (CCS) is a group of technologies that received recognition in 21 century. CCS process consists of collection and concentration of CO2 emitted from combustion of fossil fuels with further transportation to special storage locations. The reason for storing carbon dioxide away is related Greenhouse effect and its influence on global warming process. The main goal of carbon capture technologies is to stabilize the levels of greenhouse gas in the atmosphere. It is expected that implementation of CCS technologies will make it possible to reduce the total emission of CO2 up to 54% (to 450 ppmv). ( ...

as Environment Policy

Effectiveness of Carbon Tax as Environment Policy

Climate change has emerged as a global challenge because unrestrained rising of global temperature would cause melting of glaciers and rise of sea level that would submerge land masses, change weather patterns with frequent incidence of hurricanes and floods and droughts. As an effective response to the challenge, global leaders have agreed to cut back emission of Green House Gases (GTG) to contain the global rise in temperature below 2 degree Celsius (Symon, 2013). Carbon dioxide, a major constituent of GTG, is released to the atmosphere on combustion of fossil fuels such as coal, oil, and ...

Abstract

Carbon capture is an essential approach for reducing greenhouse gas emissions. Different plants utilize various technologies in reducing carbon dioxide emission. Some of the conventional techniques employed include oxy-fuel, pre, and post-combustion carbon capture. These approaches have a high potential for capturing carbon dioxide. However, their massive initial and implementation costs have been a challenge to plants globally. Additionally, most of them are yet to experience large scale applications. Therefore, it is essential for research and development activities to be conducted. This can ensure a reduction in the cost of production. The carbon capture technologies differ in costs. This ...

Introduction

The cost of manufacturing ammonia using the Haber process plant constitutes the following components: the cost of energy, raw materials, equipment, labor and sparking substances (catalysts). Energy (gas or electricity) costs are incurred to maintain the temperature of the reaction. The Harber process is operated at very high temperatures, and pressures thus higher costs of energy are incurred. Some of the raw materials consumed in the Haber process such as nitrogen and hydrogen are recovered at the end of the process. The recovered materials are recycled back to the system to reduce the cost of raw materials. Starting and ...

Question 1: Why is it necessary to use water that is both distilled and at room temperature when doing dilutions?

Answer: It is necessary to use distilled water for dilutions in order to avoid any reactions or alterations caused by the minerals, or any other impurities, present in water that is not distilled. The water should be at room temperature, in combination with being distilled, so that it does not support any side reactions that may be caused by the increased or decreased temperature. Question 2: Outline an experimental procedure (step by step) by which 25.00 mL of 1.00 M HCl can be made from a stock solution of 5.00 M HCl.

Answer: The steps for preparing a 1M HCl from 5M HCl are as follows.

The required solution is prepared by diluting ...

Research Question

The effect of increasing the concentration of two reactants, i.e. Calcium Chloride solution and Sodium Carbonate solution, on the percentage yield of Calcium Carbonate is to be studied in this experiment. The efficiency analysis for the production of Calcium Carbonate (also known as chalk) is to be carried out. The dependent variable in this experiment is the percentage yield of Calcium Carbonate, expressed as percentage (%). The independent variable is the concentration of the reactants, i.e. Calcium Chloride solution and Sodium Carbonate solution. The concentrations are expressed in moles/liter or moles/dm3. While the control variable is the mass of the ...

Three phase induction motors

Introduction The three-phase induction machine is the most widely used among the rotating machines. An induction machine offers an almost constant speed within its normal operating range when operated off a constant-voltage, constant-frequency, and with the electric power source. The cost of purchasing these machines is very low, and they require little maintenance. However, speed control is difficult and very expensive. Therefore, the rotor current of the three phase induction motors is not induced by electrical connections, but rather the rotation of magnetic field.

Squirrel Cage Rotor construction

The rotor type of the motor is made up of a laminated core which is ...

Abstract

Application of the nanofiltration (NF) and ultrafiltration (UF) processes is applied in the handling of water that is produced raw. The application has been investigated in the current day through various studies (Wang 14). The experiment of the processes of both nanofiltration and ultrafiltration is conducted in the laboratory unit which is operated in a pattern of cross flow (Ashaghi, Ebrahimi, & Czermak, 46). The study that was conducted in Oilfield of North Sea using the process of membranes of ultrafiltration (UF) and microfiltration (MF) indicated that the content of hydrocarbon decreased from 50 mg/l to 2 mg/l which recorded ...

Part 1: Answers to Preliminary Questions

• Photosynthesis is the process by which green plants use sunlight energy to manufacture food using water and carbon dioxide as raw materials.

• An increase in the intensity of sunlight increases the rate of photosynthesis up to a given level.

• Photosynthesis and respiration processes complement each other. It is possible to examine the relationship between photosynthesis and cellular respiration under controlled experimental conditions. This can be conducted by setting up an experiment with two sets of experimental set-ups. In each set-up, there should be two test-tubes: one with a high concentration of carbon dioxide and another with a high concentration of oxygen. One pair of test tubes, consisting of a test-tube with a high concentration of oxygen, ...

Introduction

Coal is a very cheap and abundant provision of energ. In fact, it is the most abundant fuel in the United States; U.S. has the highest coal reserve in the world, with up to 25% of the known world coal present in America and being mined in 26 out of the U.S. 50 states (fe.doe.gov, 2013). However, this abundant energy is seldom used because it is a very dirty energy. According to Hong & Slatick (1994), up to 204.3 pounds of carbon dioxide per million Btu is emitted when coal having 78% carbon content is completely burned to attain a ...

Effect heat has on nociceptors

Nociceptors are pain receptors activated by neuropathic or nociceptive stimuli released during pain towards impending or actual tissue injury (Dubin, 2010). Nociceptors frequently are related to the perception of pain are evoked when the pressure and temperature are at a level considered extreme that can cause injuries to tissues and secondly by toxic molecule and inflammatory mediators. In most instances, these injuries concentrate on one section of the skin, blocking the flow of blood. Heat or cold assists in subsecond somatopic withdrawal response the two act as stimuli to depolarize outer terminals resulting in the production of the receptor ...

ABSTRACT

There are so many things in the world that can make people very sick and in some cases can claim their lives. That being said if there are ways to avoid sickness then it should be embraced. Foodborne illnesses are all too common in modern society. Again, they are very common, but also highly preventable. If businesses and the general public dedicate themselves to greater efforts in food safety then these illnesses would never really be a threat. Understanding foodborne illness better it is best to look at some of the most common sources of foodborne illness, including Salmonella, ...

Introduction

Climate change is a major environmental problem, causing concern to various corners of our ecosystem. It is a result of global warming, environmental pollution and inefficient use of our natural resources. Climate change has affected almost all living organisms, including plants, animals, microorganisms and undoubtedly, man. It poses a serious threat to our ecosystem and is listed as a major concern in the Grand Challenges of the U.N. for Millennium Development and Millennium Ecosystem Assessment (Garrett 490). A wide variety of its implications, have made climate change, an important topic for researchers. There has been more awareness among researchers ...

Abstract

The document considers the use and conservation of energy in domestic dwellings using heating systems, specifically water heated boilers, which is the cheapest solution in the market for home heating systems in Ireland and Europe. The document starts with a literature review of the available home heating systems and focuses on boilers due to its availability and price. The literature review includes a standard boiler array for a typical house, the radiators materials, and key concepts to understand the use of boilers for heat generation in homes. Later, it is necessary the calculation of heat transference for a given ...

Introduction:

Nanobiotechnology serves as an imperative technique in the development of clean, nontoxic, and eco-friendly procedures for the synthesis and congregation of metal NPs having the intrinsic ability to reduce metals by specific metabolic pathways. Silver nanoparticles are particularly interesting nanoscale systems due to the ease with which they can be synthesised and modified chemically. Synthesis of silver nanoparticles has been widely researched due to their interesting size and shape-dependent properties [26]. These novel properties can be tailored by controlling their size, shape, composition, structure and crystallinity. Due to their size features and advantages over available anti-microbial properties, chemical imaging ...

Fingerprint analysis is the oldest and common form of forensic evidence and unique of each individual. There are two types of finger prints –patent and latent. Patent fingerprints are easily visible to the naked eye and are caused by inks, blood, oil or paint ("A Simplified Guide To Fingerprint Analysis", 2017). Latent ones are not visible to the naked eye and are caused by skin secretions like oil and sweat (Daluz, n.d.). There are various ways of experimenting the latent fingerprints depending on the surface, material, temperature and chemicals. Here we will study the effect of different temperatures (hot ...

I hereby certify that this material, which I now submit for assessment as a continuous assessment project in Heat and Mass Transfer on the course 4th year in BEng (Hons) Mechanical and Manufacturing Engineering, is entirely my own work and has not been submitted in whole or in part for assessment for any academic purpose other than in fulfilment for that stated above.

Abstract

Energy is a depleting resource, making it crucial for people to be knowledgeable in implementing conservation measures at the domestic dwelling level. Scientific advances had made effective energy conservation technology increasingly more accessible due to innovative ...

Growth performance of Barbonymus schwanenfeldii (Lampam) fry feeding different protein content diets

Introduction Lampam or Tinfoil Barb (Barbonymus schwanenfeldii) is categorized under the family of Cyprinidae that is an important freshwater fish mostly found in tropical and sub-tropical areas including Borneo, Peninsular Malaysia, and Sumatra. It is found in rivers and lakes with a pH ranging from 6.5 and 7.0 and the temperature ranging from 20.4 to 33.7ºC. The average weight of Lampam is 200 - 600 g and its size range between 10 and 25 cm. It is estimated that if a specific diet is provided Lampam may reach a size of 30 centimeters and its weight may exceed ...

Within a refrigeration system, the inside of the refrigerator is known as the cold-air reservoir, while the area surrounding the outside of the refrigerator is the hot-air reservoir. A refrigerator works by sucking the heat out of the cold-air reservoir and dumping it in the hot reservoir. The work to do this process is supplied by an electricity-powered compressor that is connected to a wall outlet. The efficiency of a refrigeration system can be estimated with a ratio known as the coefficient of performance, or COP. The COP is given by the benefit divided by the cost, or

Where ...

Abstract:

The principal intention of this study was to come up with the most conducive internal environment in a building. At any given moment, the internal temperature of a building is a function of the amount of heat produced by sources therein and the net heat transfer into or out of the building. The four heat transfer modes are convection, radiation, conduction, and phase- change. In executing this project, the researchers sought the relevant literature to establish the thermal properties of various materials. The properties are critical in determining the amount of heat inflow and exit from the building. The ...

Hawai'i was the 50th state to join the USA. It comprises 132 islands and is said to be the home of volcanic islands. These islands reside in the Central Pacific Ocean. Moana Loa is one of the top most active volcanoes that had formed the island of Hawaii in the ocean (Networks, 2016). The movement of plate tectonics has resulted in the volcanic eruption and, however, the volcano towering and presence of valleys had a significant impact on the economic value.

Theory of plate tectonics

Plate tectonics theory explains that upper layer of the earth’s surface is segregated into various plates that ...

Q1. A 200mm diameter pipeline divides into two smaller pipelines, one being 100mm in diameter and the other being 150mm in diameter. If the velocity in the 100mm pipe is 0.3m/s and that in the 150mm is 0.6m/s, calculate the flowrate in litres/s and the velocity in m/s in the 200mm pipe. [ 13 l/s, 0.413m/s] Solution: Flow Rate = (pi/4)(0.1)2(0.3) + (pi/4)(0.15)2(0.6) = 0.01296 cubicmeters/sec = 12.96 l/sec. (ans.). Velocity = (Flow Rate)/(Area) = [0.01296]/[(pi/4)(0.1)2] = 0.4125 m/s. Q2. If the specific volume of water is 0.001251 m3 /kg. calculate:

The mass and weight ...

Question One

The portable fire extinguishers play a significant role in putting out the fires that break out within the buildings. In essence, these devices act as a first aid response to the fires and help prevent the destruction of properties as well as loss of lives. The thorough inspection, testing, and servicing of these firefighting devices in buildings is highly recommended under the Australian regulations. The inspection checklists help ensure that the portable fire extinguishers are ready for use if they are ever needed. The following assessment checklist is for the on-site inspection of the portable aerosol fire extinguisher located ...

Introduction

The flavour and taste of tomatoes are determined by several factors including nutrition, mineral availability, and sunlight exposure. These general factors play a significant role since they affect other small factors, such as the chloroplast, which further affects the taste of tomatoes. The quality of tomatoes grown in the same region can have different flavours. This aspect can be due to the difference in a variety or the nutrition present in the soil. However, the taste of the tomatoes can be attributed to the degree of ripeness as well (Bruno & Wetzel, 2004). There are several practices, such as picking ...

Question 1

Geography is unique since it is the most basic and essential science. The creation of the field of geography is through human curiosity concerning the atmosphere and the environment in the world. It becomes unique because it is both a social and natural science. The core unifying factor between human and physical geography is the environmental determinism concept which argues that the natural environment directly influences human beings’ moral, mental and physical habits. Both depend on each other while on the earth’s surface since a majority of human’s activities are through the exploration of physical activities.

Question 2

The ...

Abstract

The understanding of the performance of an aircraft is one of the most important issues that many stakeholders in the aviation sector aspire to understand comprehensively. A significant number of aircrafts experience challenges in the process of take-offs or when they are landing. However, through research, engineers have discovered that the climb performance of many aircrafts is affected by several factors including incidences of collision with various obstacles. It is also crucial to acknowledge that an aircraft is characterized by performances in different speed conditions. Through the performance at each speed condition, engineers are able to predict that manner ...

{Author Name [first-name middle-name-initials last-name]} {Institution Affiliation [name of Author’s institute]}

Question 1: Pathophysiology of Mr. Jensen’s post-operative hypovolemia

Hypovolemia is a surgical condition that indicates the rapid fluid loss that may result in organ failures. The outcomes of the hypovolemia are mostly due to insufficient circulating volume or scarce perfusion. Often hypovolemia is secondary to hemorrhage the reason of which includes severe internal or external blood loss and GI, thoracic and abdominal bleeding maladies (Devitt, 2001). Hypovolemia involves significant fluid loss other than blood that can be further accompanied by refractory gastroenteritis and widespread burns. Hypovolemia may develop in post-surgical incidence, bone fracture, due to ...

McDonald’s is the chain of fast-food restaurants. Its target is to make people happy while providing them tasty fast-food in the comfort atmosphere. This assay will discuss how McDonald’s realizes its target and servicescape. It provides the food for everyone: adults, children, men and women. All people are their clients, except the one, who doesn’t like junk food. Even for this kind of people, McDonald’s has many proposals: tasty ice-cream, drinks, salads etc. One more advantage of McDonald’s is that its food is cheap and accessible. And people don’t have to wait for ...

Peripheral vascular disease is a term to describe the phenomenon of narrowed veins or arteries outside of those that supply the heart, brain, or lungs (Gardner, 2012). The most common form of peripheral vascular disease occurs in the legs and feet, and can be a side-effect of diabetes. The main symptoms of peripheral vascular disease are blue skin, the development of skin ulcers, cold skin, and poor growth of hair and nails in the affected area (Gardner, 2012). Although peripheral vascular disease is treatable, particularly if caught early, complications include infections and tissue death that can require amputation (Lockhart ...