Essays on Energies

An eco map, also referred to as an eco graph, is a diagrammatic representation of an individual’s personal and social relationships with his/her environment (Bennett, 2011). The eco map was developed by Dr. Ann Hartman in 1975, and it documents the interaction of people, their families, and the external environment. An eco map enables one to not only see the connection, but to also visualize the quality of the interaction between people and their environments. Words such as “positive and nurturing” and “negative and wrought with stress” are used to describe the relationships between families and their external ...

The most promising concept I learned out of Taylor’s TED talk is the importance both halves of the brain play in human existence. In particular, I am fascinated by the connection the right hemisphere has to the “nirvana” or “la-la land” connection in our lives. You see, when she was talking about her awareness at leaving her body and moving into the nirvana state, I found it interesting that as a scientist she did not specifically call it what many others might refer to as, this being “heaven.” And yet, here is a case where a well-trained, knowledgeable ...

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Introduction China is home to the most ancient and enduring human civilization. This civilization flourished for thousands of years and have survived through many succession of rulers and dynasties. The study of China’s civilization is important in order to understand China’s contemporary society. Chinese civilization can be categorized into three broad historical periods: ancient China, Imperial China and modern China. These periods, however, only serves as an imaginary partition in order to identify a certain time in the history of China. But in reality, Chinese civilization is continuous and was never interrupted even through there ...

1. The dimensions are converted from cm to m: 10 cm ×1 m100 cm=0.1 m 5 cm ×1 m100 cm=0.05 m

The volume of the water in the tank is:

V=0.1×0.1×0.05=0.0005 m3

The mass of the water is:

m=ρV=1000kgm3×0.0005 m3=0.5 kg 2. g=9.81ms2 a. The force F exerted by the water is: F=mg=0.5 kg9.81ms2=4.905kg∙ms2=4.905 N b. The force F is exerted downwards, towards the centre of the Earth. c. The water would want to move downwards because of gravity. d. The height h is converted to meters:5 cm ×1 m100 cm=0.05 m

The potential energy U is:

U=Fh=4.905 N0.05 m=0.2453 N∙m=0.2453 J 3. The volume of the olive oil is assumed to be ...

Solar Energy

Solar Energy Background What can be more useful for humanity if not an unlimited power source, which we can use without any harm to the environment? Probably nothing, but solar power. Humanity has always tried to conquer the unlimited power of the sun – the history of solar technology dates back to the 7th Century B.C. and continues to this day. In the beginning, we tried to concentrate the sun’s heat by using glass, mirrors or other devices to light fires. From those times, we greatly progressed, but still we did not conquer this magnificent source of power. Why ...

A Fossil fuel power station is a plant location where fossil fuels are burned producing electricity. Such fossil fuels include petroleum, natural gas, and coal. There are power plants which are designed for continuous operations for large scale purposes called central station fossil fuel power plants. Fossil fuel plants in many countries are used in the provision of electricity. They have machines for conversion of heat energy from combustion of fossil fuels into mechanical energy that operates an electrical generator producing electric currents (Camus et al. 154). The Samso Island is planning to exhaust the application of fossil fuels ...

Introduction

The United States is a critical country in shaping global issues in matters concerning the environment, politics, democracy, technology, culture and many other issues. Currently, Global warming debates have gained momentum world over, and the US has been on the spot to provide guidance or an example in addressing this critical issue. Besides pressure from the international community, the US has had to respond to numerous challenges powered by carbon emissions. The country's electricity sector contributes the largest portion of carbon emissions followed by transportation, industries and residential places. The state also loses more than $100 billion every decade ...

Introduction

Performance management is an important aspect of organizational function. It encompasses all the activities that concern the adherence to corporate goals. Performance management is an integral step towards the achievement of company objectives through sustainability (Roos, 1997, p.416). This is done in ways that promote organizational efficiency and consistency. Performance management can be streamlined to concern particular organizational units. Concerning this, it may regard to the activities of an organization’s departments or its employees. Through the creation of performance management strategies. Performance management has been cited in the field of corporate strategy (Youndt, 1996, p.840). Organizations use this ...

Engineering

Retrus, Maimane and Mosoallbisi (2014) agree that mechanical energy is the total sum of Kinetic and Potential energies. Kinetic energy is the energy possessed by an object because of its movement. Potential energy on the other hand is that energy which is stored by an object as a result of its position. There are two types of potential energy, elastic and gravitational and the one present in a swing and pendulum is gravitational potential energy. Its presence is because neither of them has a spring to produce elastic potential energy and they both work in accordance with the laws ...

Assignment about MRI Physics

The magnetic moment is considered as a vector quantity whose direction is perpendicular to the current loop in a right-hand-rule direction. The magnetic moment of nuclei are the magnetic moment of the nucleus that arises from a spin of protons and neutrons. A magnetic moment of nuclei is dipole moment – the quadrupole moment causes a shift in the hyperfine structure (Mangrum, 2012). Nuclei with non-zero spin have a non-zero magnetic moment while that have zero spins have zero magnetic moments. Different isotopes of an element have a different nuclei magnetic moment. A nucleus with an even number of protons ...

Solar Power Generation

Sustainable Technology – Solar Power Generation Power Generation from Fossil Fuels and Global Warming Global warming, as defined by Lineman, Do, Kim and Joo (2015), is the long-term trend of increasing average temperature of the lower atmosphere. It is widely known that this phenomenon is related to the concentration of greenhouse gases that trap heat in the atmosphere, such as carbon dioxide, methane, nitrous oxide, among others. Activities related to human development such as industrial processes, agriculture, cattle raising for meat consumption, transportation, deforestation and power generation are the major causes of greenhouse gases emissions. Specifically, power generation based on ...

Business Leadership

Introduction The world environment is ever changing and so is all the other aspects touching the organization. Leadership is one of the organizational aspects that keep on changing to match the changes in the business environment. The tactics used by the 20th-century leaders differ significantly with those used in the 21st century. Besides, the challenges facing leadership also change with the changes in the business environment implying that the challenges of the past are different from those in the current. As a result, this paper focuses on comparing and contrasting the 20th and 21st leader roles as well as ...

            The generation of electric power through the exploitation of fossil fuels, such as coal, oil and natural gas, is one of the main factors influencing climate change due to the greenhouse gases emissions resulting from the process. In consideration, there is an increasing need to shift towards systems of power generation derived from renewable sources, which have a significantly lower environmental impact; among these are solar, wind, geothermal, hydraulic and ocean power generation. This essay will focus on solar power generation. The energy contained in sunlight can be converted into electricity through the use of Concentrated Solar Power systems ( ...

LIST YOUR INSTRUCTOR’S NAME

LIST THE COURSE LIST THE DATE THE ESSAY IS FILED Berlin, Symphony of a Great City (1927)

Introduction

A brief glimpse into Berlin, Germany, and film and documentary production in the 1920s will provide historical context to better understand and appreciate the quality and value of this innovative documentary. Cultural life blossomed after the 15 million deaths and destruction of World War I. In the 1920s, the German film industry, despite uncertainties and financial difficulties, became firmly established and very productive (Goesch 61, 72). The emphasis on Expressionism became reality, objectivity and good times in the late 1920s. The art ...

Infrared Rays and Ultraviolet Rays

Infrared Rays Infrared (IR) rays are electromagnetic radiations with wavelengths 700nm – 1mm. Almost half of the sun’s energy is made up of infrared waves. They have frequencies of 4-7.5 *10^14 Hz, which is lower than that of visible red light. Hence, IR rays are not visible to the human eye. However, there are several animals which can see IR rays like the snake which uses infrared rays to hunt its prey. IR rays travel with the speed of light which is 300,000,000 meters/sec. IR waves are found in almost every object in the universe which ...