Essays on Wind

Introduction

The cheetah ( Acinonyx jubatus) is the fastest land animal with a widely quoted speed of 71 miles per hour or 32ms-1 however time trials under controlled circumstances show that the top speed is somewhere around 29ms-1 or 64 miles per hour (Sharpp, 1997). The Cheetah is uniquely adapted for speed and very few other land mammals can boast of such physiological specializations. Cheetah is a member of the group Felidae and they are unique in many ways. To start with, the African cheetah is the only species in the genus Acinonyx. Out of the 37 species in the cat Continue reading...

Introduction

Building simulation methods should focus on the effect that occurs between convective heat repulsion between external air circulation and the given wall surfaces. This study will take a closer look on the effects of heat transfer on a brick surface. A tetrahedral mesh will be used to scertain for the effects that are caused on the walls. A brick wall is known for its thermal characteristic of absorbing heat. Therefore, this thermal property will also be studied in this study. Most authors have attributed this norm to behavior of the different correlations that are used to estimate the exact Continue reading...

Introduction

Energy is one of the most fundamental concepts in the 20th century and one of the most important concepts in our daily life. Fossil fuels and other traditional forms of energy have been the major source of energy for a long time. Combustion of fossil fuels produces harmful gases like carbon dioxide that causes greenhouse effect, which results to global warming. Global warming is a serious pollution problem caused by continued use of fossil fuels. Environmental pollution because of these traditional forms of energy is one of the major touching issues in the 21st century . It is also important Continue reading...

Introduction

The purpose of this experiment was to observe collisions between two carts, measure energy changes and classify the collisions. It was hypothesized the momentum would be conserved during the collisions.

- Consider a head on collision between two billiard balls. One is initially at rest and the other moves towards it. Sketch a position vs. time graph for each ball, starting with the time before the collision and ending a shot time afterward
Before collision, ball 2 moves with a constant velocity towards ball 1. Therefore, its position changes with time while the position of ball 1 does not Continue reading...

Ryan Gleason

Salem Almansoori
Introduction
Ballistic pendulum as illustrated in Figure 1 below is a classical method of measuring the speed of bullets. This technique, which is commonly used in investigation of bullet speeds, relies heavily on the basic laws of conservation in physics.
Figure 1 Ballistic Pendulum Set-up
Figure 2 illustrates how the experiment is executed chronologically from the time the ‘bullet’ is launched to the time it ceases travelling at the maximum angular displacement. In the illustration, the bullet of mass, m and initial velocity, v hits a stationary pendulum cup and it is embedded in it to form Continue reading...

Associate professor

INTRODUCTION
Various impact dynamic systems have been modelled postulating the expected drilling speed and displacement at given speeds. One of the most basic model [Fig 1(a)] that has been used involves a mass loaded with a force composed of static and harmonic components. Though the model is simple, the model also produces highly complex dynamics where the progression occurs at periodic system response.
However, the stick slip phenomenon observed in this motion of the rock and the drill bit is not analyzed and therefore a more realistic model is required. The other model involves modeling the motion between Continue reading...

Network security is critical in the design of a network infrastructure. This is because such a design ensures that network equipment and devices including access mechanisms prevent unauthorized access. However, such can be implemented by protecting network links, hardening network devices such as routers and switches either through configurations or implementing new levels of security to perform the functions. The technology to be used in enforcing enterprise wide security matters a lot, some such as the Virtual Private Network guarantees security through encryption where data is encrypted and routed over a tunnel across the public network, while at the Continue reading...

Introduction

Ashford University has been on a notable receiving end by natural disasters. The disasters that have been on the repeated hit on Ashford University include; Tornadoes, floods and storms (Matter 12-24). As a result, many things have been on the subjected to instances of destruction. In this regard, reports dictate that tornadoes have been an almost accepted phenomenon. Whenever heavy rain rains in their appropriate season’s rain, tornadoes have been engulfing the entire of Ashford’s main campus and the surrounding environs. In essence, the resultant effect of tornadoes to Ashford University has been overwhelming commencing from the Continue reading...

Introduction

A turbulent jet is a source of energy and momentum in a fluid tank. A jet is considered fully turbulent at a jet laminar for Rej below about 100 and Reynolds number Rej above about 1’000 – 2’000. Therefore, the limit between a turbulent jet and laminar is around the Reynolds number of 3’000 and the significant characteristics of the jet are its discharge and momentum flux.

Eq. 2; Qj = vjAj – jet volume flux
Rej = vjdjv = jet Reynolds number
Frj = vj√g'dj = densimetric jet Froude number

Where;

Vj is the jet velocity at entry point
Aj is the Continue reading...

Introduction

Science fiction and disaster films often must take dramatic liberties with science and truth in order to serve a greater narrative purpose; events are compressed, effects are exaggerated, and realism and physics are thrown out the window in order to provide greater drama and spectacle (Revkin, 2004). In the movie The Day After Tomorrow, directed by Roland Emmerich in 2004, the world is subjected to global disasters brought about by climate change. The effects are myriad; global cooling sets New York in a coating of ice and freezing temperatures, glaciers crack and separate, and a “superstorm” is said to Continue reading...

The earth as we see it is composed of different components that make up the earth we know day. These components vary from the physical elements that are seen by the human eye to strange and unexplained forces that are in the visible elements of the earth. This has triggered the scientists to devise ways in which they will understand fully what happens on earth and why it is in the shape it is today. The scientists through governments have sent into space different space satellites that are able to help them get the desired knowledge of the different Continue reading...

6.0 INTRODUCTION
This section provides discussions on prospective environmental impacts touted to arise from implementing the recommendations under Section 5 (Alternatives Analysis). Officials at the federal, state and local levels and the general public would benefit from the environmental overview provided in this section, as it aims to give a clearer understanding on various environmental impacts that may arise from the proposal to develop Lafayette Regional Airport. The Environmental Assessment (EA) elaborated in the Airport Environmental Handbook, under FAA Order 5050.4A stands as the model from which the environmental overview in this section is derived (FAA, 1985).
Of the Continue reading...

- Worksheet entry figures

Cash flow figures and adjustments:

The price used for sales estimation is the £50/MWh tariff that is guaranteed by the government. On the other hand, the megawatts used for the two projects over the 15years period include 60,000 MWh for the small wind-farm and 120,000 MWh for the large wind-farm project.

Cash flow items from the profit and loss account

Adjusted figures
- Government grant cash-flow is accounted for in year 1 since it is received in the first year although spread over the 15 years for purpose of profit and loss computation. In that respect the grant receipts for the two projects is calculated as (30, Continue reading...

According to experts, the storm was as a result of a tropical depression that had formed in the Bahamas early on in August 23, 2005. Although the authorities in metrology were able to warn the authorities earlier, the federal government remains accused of taking its time evacuating people in the Gulf Coast (U.S. House of Representatives, 2006). According to a warning that was passed by the National Weather Service, the Gulf Coast would become inhabitable for months after the hurricane hit. According to statistics, New Orleans has been hit nearly five times before Katrina. However, experts state that Katrina Continue reading...

1 Symbolism and figurative language used include:
Personifications e.g. see the face of fear.
Onomatopoeia e.g. a rattle and hum. Inlocust wind a rattle and hum

Alliteration - the repetition of the initial letter, sound and group of sounds like See, you, and, bullet, and outside.

Simile e.g. “red like a rose”.
2. Yes. I find a protagonist in the song above. It is the wind. This is because the wind in this song acts as the main character and plays the first part of every action in the song. The evidences are in the following lines; “howling wind a stinging rain”,” Seedriving nails” and “locust wind a rattle and hum” (Kennedy & Dana, 2013).
3. Yes. There are antagonists Continue reading...

This gentleman has genuine mega-talent, spanning 6 decades of poetic writing, peaceful protesting, and the awakening of the youth movement.

Bob Dylan, is one of the musicians who sparked several genres of pop music which included electrified country rock and folk rock. This was evidenced in the height of his popularity during the 1960s. His influence in music has been echoed throughout various generations; this is because most of his music became popular standards and all of his albums became undisputed classic rock and roll canon. The influence of Dylan throughout the era of folk music was very powerful and it made a pivotal turning point in the 20th century. It was during this era that the genre of Continue reading...

The Storm is a story Written by Kate Chopin. The time at which the story was set is in the 19th century. The story was set in Louisiana and in real sense; Louisiana is a place that is best known for violent storms. The story is about is a confrontation of the theme of femininity and complexities of the married people in the storm. The storm is used throughout the story, and it only ends after the characters, Alcee and Calixta’s sexual encounter, which brings out the theme of femininity, and sexual desires.
Kate Chopin opens her story Continue reading...

Introduction

There are many resemblances that can be observed in magnetic and electric phenomena. A magnet comprised of north and south poles which are opposite to each other. The opposite poles attract and likewise repel each other. A magnet has principle property to influence the surrounding space. This surrounding effect of a magnet is known as a magnetic field.
Magnetic fields consist of lines of force and force of attraction and repulsion that travel/or move along the lines. The developed forces depend on strength and distance apart the poles.
Figure 1: Magnetic lines of force for bar magnet
A magnet Continue reading...

I often dream of a beautiful, lush forest with trees that tower with outstretched branches, propped on top of rugged icy peaks, swaying to and fro in the cooing winds, losing a branch or a leaf here and there. This forest that I dream of is nothing more than an imaginary place, and for some reason I have never wandered father, I just stand in one place admiring those towering trees and listening to the whispering of the wind. So, since I have to write about a place I have visited before, I would like to imagine what it Continue reading...

A collision refers to a physical situation where kinetic energy of momentum of an object is transferred from an object to the other one. In physics, collisions are classified as either elastic or inelastic. Conservation laws; energy conservation and momentum conservation are important tools in the analysis of collisions. Various literatures and experimental studies have confirmed that it is difficult to assess the interaction of bodies during collision. Therefore, main objective of this work is to demonstrate to relate the various parameters such as velocities and masses of the system using the principle of conservation of energy and momentum.

The momentum of an object of mass, m and velocity, v is represented mathematically as shown below:

Continue reading...

Introduction and Theory

The main aim of this experiment is to investigate energy and momentum conservation in a closed system. Momentum and energy conservation principles are significant physical variables that engineers use when describing various physical phenomenon. Momentum of a body is a vector quantity, which is given by the product of its velocity and mass. In collision theory, the momentum of the body is always conserved when two bodies collide. The principle of momentum conservation applies to both elastic and inelastic conservation irrespective of the dynamic interaction between the two objects. This report demonstrates the application of momentum equation in determination Continue reading...

Wind harnessing has been done for centuries. Some years back, windmills were employed in water pumping from wells and grain grinding. Presently, wind turbines are used for generating electricity from wind’s energy. In the wind farm, wind energy is harnessed by use of wind turbines. These are rotated by wind and in turn rotate motors fixed inside them. The motors generate electricity. Individual wind turbines are interconnected with a collection system. Rotation of the wind turbine is subject to variable frequency as the wind persistence varies. Consequently, it is necessary to have a constant power input into the Continue reading...

Describe two initiatives established by the Clean Air Act Amendments of 1990 that have enhanced the nation’s demand for ethanol? The Act Amendments established a tight pollution rule for the motor vehicles thus safe emissions. The act also offered a detailed plan to cut on the toxic air pollution.
What is winter oxygenated fuel and what is the benefit to the environment? Winter oxygenated fuel is fuel that contains the oxygen additives such as the alcohol and ether. These additives enhance combustion thus reducing emission.
Describe three federal laws or policies that encourage the production of ethanol to Continue reading...

Introduction

The purpose of the experiment was to study Ohm’s law and to investigate the relationship between current and voltage in metal wire, lamp filament and diode.

Theory

Electric current (I) is defined as the rate at which charges flow through a conductor. Current flows when a conductor is connected to a power supply in a complete circuit. The battery provides the energy needed to move the charges through a conductor. The energy supplied by battery per unit charge is called voltage. Voltage is a measure of electrical potential difference between two points in a circuit. The potential difference between Continue reading...

Falling Ball Viscometer

- Objective
The intent of this experiment is to find the dynamic viscosity of Glycerol by following falling ball viscometer method. Multiple steel spheres will be used to fall down the liquid and the time taken to fall a specific distance will be measured.
- Background
A body falling in a liquid is subjected to gravitational, buoyancy and drag forces which results in the achievement of a terminal velocity of the fall. According to Archimedes principle, we know that buoyant force is equal to weight of the displaced liquid. Implementing these principles, we get following equations, which result in Continue reading...

Falling Ball Viscometer

Objective:
Purpose of the Falling Ball Viscometer experiment was to measure the viscosity of glycerin or glycerol by using falling ball viscometer technique.

Background:

When a body falls in a liquid under the force of gravity, it accelerates until weight of the body is balanced by the buoyancy force and drag force. Terminal velocity is gained by the body at this point. Viscosity of the liquid can be evaluated by measuring this terminal velocity of the body in the liquid.
In this experiment a steel sphere was allowed to fall in glycerol and dynamic viscosity of glycerol was measured by Continue reading...

I confirm that this work is my own work. Where I have rewritten someone else's ideas in my own words, I have identified this with a reference.Where I have used words directly from a book or any other source, I have enclosed these in quotation marks and have identified the source in the reference section.

Question 1

Below is a photograph of gel electrophoresis result obtained from the experiment.
Figure 1
L G-NTC G-DNA G-P H-NTC H-DNA H-P
The gel electrophoresis result showed 14 visible bands from the lane loaded with the ladder. No visible band was observed on the lane Continue reading...

WRITING: FASHION DESGINER

Thesis: spending your holidays outside country is more beneficial than spending time in luxurious hotels in the city.
I love the month of December. The month full of joy, happiness and reunions .Oh! How can I forget to mention plenty of tasty, delicious and mouth wetting foods everywhere? They call me Mr. Price, but I call myself Mr. Right, do you know why? Of course not, but here is the reason. I never miss my set at any time. What do I say? I don’t like to brag, am a well travelled fellow. Just the other day, I Continue reading...

The time has come that the technical problems facing the old design of Airship with Helical Vertical Axis for Wind Turbine (Eagle 14) at High Altitude shall be replaced with a new one that meets engineering standards in order to work more efficiently. A team will handle the proposed project based on a research plan made by the members. The project is expected to produce good results because the team will assign a principal investigator or PI who has a wide experience and record of achievements in the fields of experimental and quantitative design of Airborne Wind Turbine at Continue reading...

Describe the conservation choices that you recommend for implementation on the farm.

There are numerous conservation choices that can be implemented in the farm. First, crop rotation must be implemented. For example, corn, legumes and small grains can be rotated. Scientific studies have showed that crop rotations that include small grains and alfalfa significantly reduces soil erosion. Likewise, choosing the right rotation of crops will also help reduce the use of pesticides. In planning the rotation, it is best to design the rotation in such a way that the farm will meet the farm needs and goals for the yield as well as prevent erosion.
Crop residue management is also recommended. Continue reading...

Big data is defined as a data group that is so large that it causes problems of searching, collection, storage, analysis, and sharing of the data. Big data has four main characteristics. They are; volume, variety, velocity, and veracity. First, volume is the amount of data that is to be analyzed. Variety is the structure that the data in question has. Velocity is the amount of time taken to process the data from the time it is collected to the time it is being streamed. Veracity is the amount of quality of the data that is being analyzed, finding Continue reading...

Abstract

Renewable energy may be the future for the United States of America, particularly as the economic situation in the United States changes. The United States of America has to change the way it interacts with the world and the level of consumerism that it engages in, particularly insofar as the topic of renewable energy is concerned. Renewable energy sources come in many different forms, and making a few necessary changes to the current set of regulatory bodies in the United States could, conceivably, change the overall future of the United States of America in terms of renewable energy sources. Continue reading...

September 11 attacks

September 11 attacks, also referred to as 9/11, is a series of commercial airplanes hijacking and suicide attack committed by 19 terrorists associated with the Islamic extremist group, Al-Qaeda against the United States (Pandya, 2013). The planes were carrying 11, 4000 gallons of jet fuel, which experts claim that the objective of the militants was to take control of the planes once they were airborne and turn them into weapons of mass destruction (Pandya, 2013). The attack targeting the U.S. was one of the deadliest terrorist attacks on the American soil in the history of the world. The attacks Continue reading...

Introduction

Hurricane Katrina was recorded as the most deadliest and destructive Atlantic tropical cyclone. It occurred in the season of Atlantic hurricane. It is a natural disaster which is recorded as one of the costliest disasters. In addition, this is a natural disaster classified under five other deadliest hurricanes, in the whole history of the US. Hurricane Katrina appeared as the sixth most intense hurricane in the 2005 season (Brenner, 2007). An approximate of one thousand eight hundred and thirty three people died as a result of this natural disaster. There were subsequent floods during this disaster making it a Continue reading...

A combination of the tropical wave and the tropical depression was formed over the Southeastern Bahamas on August 23rd, which was the beginning of hurricane Katrina. The following day this formation was labeled as a tropical storm and given its name, Katrina. This tropical storm was approaching towards Florida, and it was not considered a hurricane until it hit Hallandale Beach and Aventura on August 25th (Zimmerman, 2012). The intensity of the storm reduced as it approached land but it regained the pressure an hour prior to entering the Gulf of Mexico. The hurricane moved from category 3 to Continue reading...

Experiment 4: Projectile Motion

Introduction:
Projectile motion is a special type of motion involves two components of motion – horizontal and vertical. But motions in two directions are independent of each other. Flight of ball is an example of projectile motion. This two dimensional motion can be determined as two linear motions in two mutually perpendicular directions –one along horizontal direction and the other one along vertical direction. Projectile motion can be analyzed with the help of equations of motion. Vector equations and vector rules are generally used as the motion occurs in two dimensions. Gravity force has primary importance in projectile motion. Effect Continue reading...

Critical Thinking Questions

Chapter 1: Critical and Creative Thinking Questions 1 And 4
Question 1
Some of the indicators for mechanical weathering in my area are the following: high number of boulders with cracks and joints, fracturing at the surface of rocks and old buildings, slow disintegration of boulders and statues, and surface fracturing on roads and slopes of various hills. On the other hand, the evidences of chemical weathering are; change in color of rocks, darkening of old buildings made of limestone, and gradual wearing out of rocks and walls of some buildings. The significance of these indicators can be determined Continue reading...

The Gloria from the Masse de Nostre Dame by Gulliaume De Machaut, 1360 AD and Agnus Dei from the MIssa Papae Marcelli by Giovanni Pierluigi da Palestrina, 1557 AD are two highly famous mass of the people songs of respective times. Both the mass songs are declared masterpieces of their time. Distant by nearly two centuries, the two songs, are equally charismatic in their genre and composition. The devotion of lyricists is a self-exhibit of love for Jesus Christ. A true appreciation of his sacrifice and begging forgiveness of sins by the masses (Ferris & Worster, 2013, P, 86-87-102).
The Continue reading...

Write Up

The scenario involved the Hurricane Katrina, which was a big catastrophe that occurred in the United States. It caused floods in the city of New Orleans and other towns such as Florida, Alabama and Mississippi it caused people to be stranded. The author wanted to inquire why the government’s response was taking long to provide help to the victims. The author became curious since other personnel such as the media could access the area whereas help was not forthcoming from the relevant authorities. This result to the research question was the government’s response motivated by racism?

The Body

The Continue reading...

The hurricane Katrina occurred on 29, August 2005 and affected the city of New Orleans and the small towns of Mississippi, Alabama, and Florida. The government response was very poor. In twenty four hours soon after the Katrina occurred, the whole world had known that, majority of the affected were blacks. The media was filming and reporting without any rescues on site. Federal Emergency Management Agency (FEMA) claimed that they could not get through yet the media had gone through. Harry Connick, Jr, said that he was able to get to New Orleans without any difficult.
On 26, August Continue reading...