Velocity College Essays Samples For Students

Introduction

For the specification of the control of an aircraft, other parameters and equipment’s other than the basic aircraft control are required. This is because there are various dynamic performance criteria that need to be factored in the aircraft control system design.
The basic aircraft system requires a navigation and control so that it works efficiently. The basic structure of the aircraft system is identified as below with the various parts performing various functions:

Aircraft system block diagram

The stability augmentation and transient response improvement are provided by the estimation control of the linear feedback block of the system. The forward loop provides ...

The experiment explores linear motion under constant acceleration to express displacement, acceleration and velocity as functions of time. In addition, it explores the constant motion under an inclined position. The motion of objects can be described by kinematics equations. This is a set of equations that fully describe the relationships among the velocity, displacement, acceleration, and position of object under linear motion (Serway and Jewett 35). These kinematics equations for constant acceleration are shown below:

X=X0 + V0t + 1/2at2

Vf = V0 + at
V2f = V2 0 + 2a(X-X0)
Where X= final position

X0 = initial position

V0 = Initial velocity

Vf =final ...

The experiment aims at determining the value of gravitational acceleration (g) using simulation of objects under free fall, vertical acceleration, and objects in a projectile motion.
Bodies fall under the influence of gravitational forces. The force mg acts on the body. However, when such objects are falling under the influence of gravity, such motions are referred as free fall. The assumption underlying free fall motions is that they do not encounter air resistance. The motion of free falling objects is characterized by a downward acceleration. The equations of motions are modified as shown below.
V (t) = -gt +V0

y ( ...

Abstract

The experiment was done to investigate the relative roughness of pipe three though a plot of the friction factor verses the Reynolds number. A comparison of the obtain results was made against a Moody diagram. Also, additional comparison of the experimental results obtained from pipe 1 and 2 were made against theoretical values obtained through Prandtl and Blasius equations. This process entailed plotting the theoretical and the experimental values on the same comparative roughness against Reynolds number chart. Additional results of different types of flow, exhibited by the flowing fluid, was done and represented in a graph of head ...

Ski jumping involves a lot of skill, and different factors affect how far the ski jumper would jump. Comprehending of the physics principles enable the skiers to execute certain moves. When these factors are manipulated in different scenarios, the desired distance is achieved. The sport of ski jumping requires one to jump the furthest down an inclined slope. It is done by gaining the maximum possible speed one can attain upon takeoff from the ramp. It is achieved by minimizing the frictional drag due to the air resistance between the air and the skier. The air resistance is significantly ...

Questionnaire

<Institutional Affiliation>
The main reason why theories are created is that they tend to explain a fact or a phenomena using suggested ideas that are based on principles. Landing to the moon is an activity that was practiced and witnessed by human beings. Therefore, no theory is needed whatsoever to explain the event.
The speed to be measured is that of wind. The materials needed are: four cups whose shapes are hemispherical, and a spindle. The cups are attached to the spindle and the spindle vertically mounted on the ground, in such a way that the cups are ...

Abstract

This paper is on the topic of Basketball Free Throw and to demonstrate the relationship between structural and functional anatomy and movement performance. The first section of this paper will discuss the muscles and actions that are important for the movement and how these muscles relate specifically to the movement outcome. The second section of this paper will cover the limiting/facilitating joints and associated structures. The third section of this paper will discuss the combination of muscle and joint motions important for movement success. The fourth section of this paper will discuss how strategies or training techniques may improve ...

Introduction

Mechanics is a branch of physical science that deals with moving and stationary bodies influenced by forces. It is divided into two branches called dynamics and statics. Dynamics deals with moving bodies while statics deals resting bodies
Mechanics also has a subcategory called fluid mechanics. Fluid mechanics is the science concerning the behavior of fluids. It could be fluid statics when it tackles about the body at rest. On the other hand, it could be fluid dynamics when the fluid body being studied is in motion.
Fluid mechanics is a study regarding the behavior of material that can bend and ...

Abstract

This article discusses a variety of methods which are used in the day to day measurements that are taken in the field of engineering. This is important in familiarizing the engineers with the respective methods, which are unavoidable in the design of any component that requires utter precision. Therefore, this discussion promotes quality in engineering products by advocating for accuracy through precision in measurements.

Introduction

Measurement is the length, amount or size of something, as determined by taking the measure of the respective part or object (Diley & McConnell). It is enabled by the laws of physics which make certain materials ...

Enzymes are large protein molecules which are vital in carrying out the chemical reactions responsible in maintaining homeostasis in our body systems. There are various factors which affects the functions of our enzymes. These factors include: enzyme concentration, substrate concentration, inhibitors, temperature, and pH (Voet and Voet, 2011). Given an adequate concentration of substrate, an increase in enzyme concentration will increase enzymatic reaction rates (Uddin, 2012). The relationship of substrate concentration to the function of enzyme is best explained by the Michaelis-Menten equation:
V1 = (Vmax [S])/( Km + [S])
where:
V1 = velocity at any time
[ ...

Single Pump Results

Single Pump Calculations

Impeller Diameter (D) 114mm

Venturi inlet diameter (AP) 27.2mm
Venturi throat diameter (AT) 18.5mm
All calculations done assuming ρ= 1000 kg/m3
1. Graphs for the single pump test
Figure 3: Percentage efficiency plotted against the flow rate in litres per second
2. Analysis of single pump graphs
The graph in Figure 1 demonstrates an inverse correction that exists between flow rate and the size of the head. According to the curve, the fluid flow exhibits a maximum head (16.20795m) at zero flow (Derakhshan and Ahmad 807). On the other hand, the fluid flow demonstrates a minimum head (4.99490m) at the moment ...

Types of Centrifugal Pumps

Centrifugal pumps consist of impellers and volutes and turn electrical energy into mechanical energy. The impeller rotates producing centrifugal force that adds to the pressure of a fluid budging the liquids in the desired direction through a piping system. There are basically two types of centrifugal pumps; Single-stage radial flow centrifugal pumps and multistage centrifugal pumps.

Single-Stage Centrifugal Pumps

These pumps consist of one impeller and are used in production operations to offer pump low to moderate pump services total dynamic head of less than 700ft/min. The characteristic curve of the pump is shown below:
Graph showing single-stage centrifugal pump characteristics. Retrieved ...

Fluid Mechanics is a branch of engineering study and it deals with various properties of fluids. In our daily life we use various types of fluids. Most of the fluids are readily available and have some excellent properties. Significance of Fluid mechanics is to know how the fluids and its various properties can be used in our daily life. This part of engineering is integral part of main stream engineering like Civil Engineering, Mechanical Engineering as well as Chemical Engineering as these brunches of engineering often deals with fluid. In this essay various aspects of fluid mechanics and its application ...

Abstract

The ever-increasing flow of information in organizations has posed challenges to business for years and this has led to the development of the phenomena of big data. Following the adoption of the term “big data”, velocity, volume, veracity, velocity, and variety are the five elements that scholars have used to describe big data. For years, companies such as insurance firms have correlated data sets using the five elements. This has helped limit confusion attributable to the collection, storage and dissemination of complex data. The correlation is necessary due to the difficulty in managing huge volumes of data sets.

What is Big Data

Big ...

Part 1: Algorithm for solving problems:

STEP 1: Identify the relevant bodies (particles) constituting the given system.
STEP 2: Visualizing the problem:
a) Look for key words describing the motion of the particles. For example, some questions to be addressed are:
- Is the system moving with a constant velocity? If not, is the system moving with a uniform acceleration? What is the nature of acceleration? (positive or negative?)
- What is the relative motion/acceleration of the different particles in the system?
b) Type of motion: Using answers from a), identify the type of motion. For example, is it uniform circular motion?
c) Identify ...

File 1

1. Resonance; asteroids has the tendency of oscillating in a system at greater frequencies and amplitude.
6. Mass is the physical quantity that measures inertia. An object with a larger mass has a tendency of resisting movement unless more force is exerted on it.
7. A 3kg piece of iron has more mass and a 2kg fluffy pillow has more volume. The piece of iron has more weight (3 kg) as compared to the pillow (2 kg), this make the iron to have more mass since mass = weight / gravitational force considering gravitational force is constant. The 2kg fluffy pillow has ...

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 ...

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 ...

1. Introduction to the Technique
Magnification and high resolution imaging are very important in materials science, especially at present when nanotechnology materials are being created. Magnification and high resolution imaging can help in the characterization, identification, and confirmation of the existence of the desired material. Magnification and high resolution imaging become problems when the size of the assessed material becomes too small; such as, they are beyond the micrometer scale. Ordinary techniques in microscopy such as light microscopy where in a traditional light microscope is used could not suffice. Fortunately, in 1931, two scientists named Ernst Ruska and Mx ...

The purpose of this experiment is to find the orbital velocity of the Earth by measuring the Doppler shift in the spectrum of the star Arcturus.

Diagram showing the earth and Arcturus

An Explanation of the Procedure
Line 1 was selected and its displacement was measured in (a) and (b) in millimeters. A straight edge was used to connect the matching reference lines as given in the above figure. The shifts were measured with a scale to a tength of millimeter. This measurement gave the value to the shift Δλ for the line in millimeter. A table was created, as shown below, where all the readings were recorded. The ...

IR and UV

Infrared Radiation (IR) or radiant energy is the portion of the electromagnetic spectrum encompassing short wavelengths than microwaves and longer wavelengths than the color red. The frequency (ν), wavelength (l) and the velocity (c), and the medium it is traversing are the important attributes of IR. IR is usually discussed in terms of frequency as the velocity and wavelength vary depending on the materials. Few molecules in the air absorb IR energy; however, the absorbed energy is not absent as the energy separates the molecules as IR in an unsystematic direction. The velocity of infrared rays is equivalent to the ...

Validity and Scope of Approximate Methods of Integration

Introduction
Addition of discrete numbers is pretty straightforward; more than 80% of the human population can make mental calculations instantly. So when integration was introduced as a kind of addition in a continuous domain, I was not very worried. However, it didn’t take me long to realize that understanding integration is more than solving a bunch of problems using well defined techniques. So in my pursuit to understand the topic well, I decided to research upon how some of these techniques (Trapezium Rule and Simpson’s Rule) came about, how they work, and what they really mean. With this intent, ...

Basic Modules of Gas Turbine High Bypass Engine

Air Inlet Section: As shown in figure 5, the air inlet section is the most forward section of the engine. This section forms the air inlet for the engine and houses the inlet guide vanes. The purpose of the vanes is to direct the incoming air at the proper angle to the first fan stage. The vane at the bottom of the air inlet is thicker than the others in order to accommodate engine tubing. As indicated in figure 6, the no. 1 bearing support assembly is mounted in the center of the compressor inlet case. Behind the front ...

The law of conservation of momentum states that the total linear momentum of a system remains constant. Bodies under collisions exert equal and opposite forces, however, in the absence of external forces, their change in momentum is equal and opposite. There are two types of collisions: elastic and inelastic collisions. In elastic collisions, both the total kinetic energy and momentum of the colliding bodies is conserved. On the other hand, only momentum is conserved in inelastic collisions. In the latter, bodies fuse together after collision (Wilson and Hernandez 129).
The experiment investigates the conversation of linear momentum in an ...

The overhead football throw is one of the most popular sports movements amongst young males in America. It is an overhead throw with a football, which quarterbacks make when they throw the ball, usually for a great distance. Due to the shape of the ball, it should also have a particular twisting pattern so that the throw may be more accurate and fast. The main joints involved are the elbow and the shoulder, so it is important to take them into account when discussing the motion’s biomechanics.
The starting position of the movement is simply standing up, with ...

Introduction

The basic principle of soccer is rather simple: two teams, composed of eleven players each, compete on a rectangular court for control of a spherical ball, with the objective of kicking it into the opposite teams’ goal. The history of soccer goes back to the 2nd and 3rd centuries BC, as evidence of the sport being played in ancient China during those periods has been found. In modern times, soccer is undoubtedly one of the most popular sports in the world, if not the most prevalent, particularly in Europe and the Americas. According to Fifa, the 2014 World Cup ...

People have been using lift for already more than a hundred years. Lift – is a component of the aerodynamic force which is perpendicular to the vector of the velocity of the motion of an object in the steam of liquid or of a gas which results from asymmetry of the body flow by a stream. It occurs at the motion of any object in the air, if the object has a shape conducive to this (the wing, for example).
Air flow around the wing is divided into two streams: over the wing and under it. Lower flow steams in a normal manner having no ...

Authors’ Name:

The portability of the wind energy has been until recently, a major knock. However, the energy niche is quickly growing with development as small portable wind turbine generators (Kleinschmidt, 2008). The gadget is a wind power harnessing device that is small enough or can be taken down, packed up and moved with easily. The generator is powerful enough to provide energy for charging smartphones and other USB devices (Kleinschmidt, 2008). The operation principle for portable wind turbine generator is less the same that of large wind turbine generator.
The device comprises of a drive train that has the main shaft, a hub, ...

Information system methodologies

Introduction
System development methodologies will affect the way systems are developed. It is important to understand the requirements of the system can meet the objectives of the users of the system. Choosing the methodology that will be used in developing a system will determine the way the system will be developed and how the developers will interact with the system. This paper will focus on the development approaches for the Westminster case study and offer recommendations on the best approaches that can be used to develop the system that is required.

Agile planning refers to the repetitive process where ...

Solving Real-World Problems Using Algebra.

A chain store manager has been told by the main office that daily profit, P, is related to the number of clerks working that day, x, according to the function P= -25x2+300x . What number of clerks will maximize the profit, and what is the maximum possible profit?

Solution

The Quadratic equation P= -25x2+300x can be modified to the form y= -25x2+300x, where P= y.
Modifying the equation in this form enables us to plot the function y= -25x2+300x

For various values of x where x is a positive integer.

The general equation of a quadratic is given by y= ax2+bx+c where a, b and c are the ...

Light and Its Properties

Light is around us. Source of natural light is sunlight and in night we are using light generated from various power and energy sources. Without light we cannot imagine our life. Light is energy following conservation law of energy. It cannot be generated or destroyed. It just transforms into another kind of energy or vice versa. In following paragraphs light and its various properties have been discussed.
Light is electromagnetic radiation having properties of waves. It does not require a medium to travel through and for this reason light is able to travel through vast vacuum of space. Light ...

Keynesian and Monetarist Policies in Macro Economy

In the macro economy, there are policies, which are employed to control the economy of a country. The policies are the Keynesian or demand sided policies and the supply sided policy, which is also referred to as Monetarism policy. Monetarism is currently classical economics and Keynesianism is Mercantilism economic policies. These policies have various differences on how they are employed to control the economy. Keynesian school of thought claimed that the Classical thought is rigid in their assumptions in that they advocated for price flexibility and full employment, but, on the other hand, they were rigid in their advocating for ...

Part 1

The equipment used to assess VO2 max and lactate threshold includes the h/p/cosmos Pulsar 5.0 treadmill, the Cosmed Quark PFT Ergo testing equipment, the Cosmed V2 mask, the HR Belt Cosmed-ANT (w/transmitter), and a computer.

Calibration Processes

The preliminary step for the experiment is to perform the calibration of the equipment. The treadmill velocity should be calibrated by marking a point and noting the time it takes to complete a predetermined number of revolutions. This time is used to calculate the velocity by using the length of the belt, which should also be measured. These calibrations should be performed at different ...

Answer 1: The factors that influence the Fed's balance sheet are its assets and liabilities. In assets Fed hold securities like U.S Treasury which is controlled by open market operations. Then the foreign exchange reserves issued by the foreign governments. The SDR(special drawing rights) and gold are official asset, other Federal Reserve asset and the discount loan. In liabilities, the currency in circulation, the reserves i.e. the accounts with commercial bank , government accounts and other liabilities which mainly consist of reserve repo rate. The asset that has increased Fed balance are purchase of treasury and mortgage bonds(Kearns).
...

Space rendezvous is a precise orbital maneuver, which requires two spacecrafts to arrive at the same orbit, and move at the same speed. Since the orbital velocity is usually not less than 7 km/s, a 1-second error will case a distance of 7 kilometers between the spacecrafts. Such an error is unacceptable, as rendezvous is a prerequisite of docking, which requires spacecrafts to rendezvous as close as some dozen meters.
Initially, astronauts were not aware of principles of the space mechanics. Engineer André Meyer says that “to catch something on the ground, one simply moves as quickly as possible ...

Coordinates reference frames for Orbital motion

The relative position of moving objects in space is determined by usage of coordinate reference frames that compare the position of the object with respect to earth. This concept helps in defining the equations of motion for orbital movement of celestial objects in space. The extension of the same concept is used to determine the relative position of a spacecraft during the course of its ascension into the space using the earth centered system. The position of a spacecraft in its ascending node can be determined by using an equatorial vector that ascertains its relative position with respect to ...

Introduction

The economic objectives of growth, stability and development can be achieved in an economy through two major forms of economic measures, monetary measures and fiscal measures. Thus monetary policy and fiscal policy forms the two primary pillar of economic action by the state.

Tools of Monetary Policy

Monetary policy achieves the objective of price stability and growth by controlling the monetary variables in the economy. The monetary authority of the country, the central bank, controls the money supply and demand in the economy through various monetary tools at its disposal. These tools include the interest rate; cash reserve ratio and open market operations . ...

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 out ...

BIG DATA and its value to Small Medium Enterprise SME’s Restaurants

Big data can be very difficult to work with and may require to be broken down into simpler parts, so that interpretation is easier. The main challenges that are experienced in managing big data management include; storage, captures, curation, sharing, searching, visualization, analysis and transfer (Zikopoulos 2012). Large data sets emerge from derived additional information that results from the analysis of single and large set that is linked to the data. Therefore, big data is a situation whereby data sets collected are complex and voluminous to an extent that management through the use processing tools as on hand database and ...

Lab 1 - Exercise 1: Data Interpretation

Dissolved oxygen is oxygen that is trapped in a fluid, such as water. Since many living organism requires oxygen to survive, it is a necessary component of water systems such as streams, lakes and rivers in order to support aquatic life. The dissolved oxygen is measured in units of parts per million (ppm). Examine the data in Table 4 showing the amount of dissolved oxygen present and the number of fish observed in the body of water the sample was taken from; finally, answer the questions below.

Questions

- What patterns do you observe based on the information in Table 4?
...

Motor control as open and closed-loop systems.

In high control, system serves as building block for many mechanical systems used today. Using the appropriate control one can design systems to perform tasks within the specified time. Motor control system consists two categories sharing some similar parts but differ in a variety of ways.
Open Loop control is the simpler of the two allowing one way flow of data and never and there is no feedback. This means that in the signal flow there is no transfer of data back to the source. The signal enters through the input stage, passes through the amplifiers to produce the ...

Introductory Problem One

Concentric muscle action is an action that describes the contraction that involves the shortening of a muscle. Examples of activities where the concentric muscle action is required include walking on level ground, picking up a weight and kicking a ball. The quadriceps and calfs are involved when walking on level ground and when kicking a ball. The biceps, deltoids and back muscles are involved when picking up a weight.

The eccentric muscle action is where a muscle elongates as it being stimulated in order to develop tension. Some of the activities that require eccentric muscle action are extending the elbow where the biceps branchii are ...

Abstract

Heat transfer through a cylindrical pin fin s studied. For the purposes of this study, thermal conductivity, heat transfer coefficient and the source terms and the sink terms are assumed to depend on the temperature. In the model being used for the study, the source and sink terms are given as arbitrary functions. We therefore employ techniques on symmetry to find the forms of the source and the sink terms which the extra lie point symmetries are admitted. The method of separating variables is used in the study to get the exact solutions when the equation for the equation is ...

1.
Thermodynamics
Thermodynamics, according to mechanical engineering, falls under the fourth semester with a code of MME 2010(3). As a branch of mechanical engineering, it deals with study of the effects as a result of work done by or on material bodies or radiation in space. It is mainly concerned with the interrelationship between the three existing macroscopic variables, temperature, heat, and pressure in reference to the description of physical properties of the radiation and material bodies. Radiation in space and material bodies, are mostly referred to as thermodynamics system. Thermodynamics can be therefore be described succinctly as the ...

22nd May, 2011

In physics and in physics it is a belief that ones safety is not related to the speed in which one is travelling or moving in but it is rather how fast you stop. When a collision occurs ones safety will not be based on the speed in which he was moving in before the collision occurred, but rather it would be matter of how fast he stopped when the collision occurred. The urgency in which one stops a moving object during a collision process would dictate the magnitude of the collision. A person who reacts and stops the car ...

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 the mid-nineteenth century classical school of political economy was in crisis, as its theory was based on the interpretation of cost values and could explain some of the pressing problems of the economy. The weakest point of the classical school was that it was poorly focused on the subject-user, for which production takes place. The opinion of the classical school was confined to the manufacturer. An exit of the crisis was found by the marginalists. This direction of economic thought emerged in the last third of the XIX century in the center of this system is subject to ...

Program:

Specialization: Human Resources

Part 1: Professional Goals

Professional Introduction
My professional goal incorporates the attainment of a strategic position on the basis of my knowledge, skills and abilities. I intend to become a strategic expert by encompassing the senior human resources leadership rank. I also want to utilize my technical and conceptual skills in order to direct, inspire and lead others by means of my representation as a human resources scholar. I possess adequate academic knowledge about Human Resource Management because I have completed my graduate and post-graduate education with the specialization in Human Resources Management. My bachelors degree account for the technical ...

Low-Earth Orbits may be defined as ones within a locus extending from the Earth’s surface up to an altitude of 1,200 miles. It is this orbit in which the atmosphere drag is minimal, if not totally absent. The Low-Earth Orbit finds varied use in space technology. This orbit is used to visit the International Space Station or the Space Shuttle to perform experiments, installations and repair of astronomical equipments (Iowa State University, 2016). Satellites are a vital part of this orbit. They are required for varied purposes such as communication, weather, GPS, space travel etc. A satellite ...

Introduction

The very title of this article may seem to some readers fantastic. Is there any evidence that alien beings exist? Can we prove that there is no clear scientific argument in favor of their life and activity? Such questions immediately arise among readers, of course, they are quite natural. And yet, I will try to show that the statement of the problem in our time of exclusively rapid scientific and technical progress is quite logic. Moreover, most recently the first steps towards the solution of this great problem facing mankind were taken. Basically, from the scientific point of view ...

Introduction

Energy is a key driver of any nation’s economy. The extent to which it contributes to the performance of all activities surrounding the human life is beyond measure. This is because energy contributes almost fully to the economic development of the economy. In its physical form, energy is classified either as renewable or non-renewable. Renewable energy forms the green energy that can be reused again and is less toxic to the environment. On the other hand, non-renewable energy is exploited once it’s used and mostly pollutes the environment. All this energy forms can be either used directly ...

The paper discusses Kepler 186 exoplanetary system. It explains the technique of detecting Kepler 186 system, the structure, as well as its layout. Exoplanetary system denotes planets orbiting around a star other than the sun, or it is beyond the solar system (Charles, 2015).

Technique for Detecting Kepler 186

The method used to detect Kepler 186 is transit technique. A planet is described as transiting when it passes between its star and the planet Earth. As the planets of Kepler 186 pass between the Earth and the Kepler 186 star, the star's light is caused to dim, and this is detected by an instrument. ...

Question 1: what is?

Playa lake- is a depression within the interior of desert basins and it forms adjacent to coasts in semiarid as well as arid areas. The depression is covered by water which filtrates into the ground or evaporates periodically to leave salts, sand or mud deposit in the depression.
Pluvial Lake- this is a lake formed due to glaciation process when large ice sheet create a bigger depression as it melts. This depression is filled with water to for this lake.
Ventifact- this is a rock blasted due to sand blowing effect. It is characteristically faceted and has a parallel ...

Electric vehicles (EV) are receiving a great interest as an alternative to conventional transportation on oil with the purpose to decrease noise, environmental pollution by reducing carbon emissions and to reduce dependence on oil (Lowry & Larminie, 2012). Moreover, using nuclear and alternative energy including renewable allows to produce zero release of carbon dioxide by vehicles. Currently, road vehicles just reached the stage when electric cars are produced in quantity but still not widely used. First, electric cars have significantly less range. Second, it takes much more time to recharge batteries (several hours for lead acid battery) than to put ...

Energy production has experienced numerous landmark changings thought the century. Although there is no perfect solution found in terms of satisfying the needs for energy resources and mitigating its environmental and social impact, hydropower generation is considered a renewable energy source and alternative to fossil fuel combustion. Hydropower generation has experienced significant advancement throughout its history. However, the principle of its work is rather comprehensive. The energy of falling water is employed to turn the turbine, which is connected to the electricity generator. Furthermore, electricity is supplied through grids to industrial or domestic units. In most cases dams are ...

Introduction

In addition to their important roles in natural environ-
ments, microbial enzymes can be highly specific in their
activity and thus are increasingly useful in industrial
applications. Enzymes from aquatic bacteria adapted to
moderate and high temperatures have already figured in a
variety of applications, including polymerase chain reac-
tion (PCR), laundry detergents, protein recovery and
organic synthesis (e.g. Mullis and Faloona, 1987; Adams
and Kelly, 1995). Although enzymes with optimal activity
at cold temperatures have been understudied compared
with their heat-stable counterparts, increasing attention is
being paid to cold-active enzymes as potential applica-
tions are revealed
Enzymes are ...

MULTIPLE SCLEROSIS

The symptoms appearing as a result of Multiple sclerosis are believed to be a result of blockage in the conduction as a result of defects in the synaptic junctions of the nerves, the defects could be demyelination and inflammation of the nerves (Smith and MacDonald, 1999). There is focal demyelination of the nerves, where the myelin sheath is damages but the axonal continuity remains undisturbed. The difference between Wallerian degeneration and Multiple sclerosis lies in the fact that in the former one there is degeneration of the axon also. Other features that can be observed in case of multiple ...

(Your professor’s name)
(Course name & no.)
(Date dd/mm/yy)

Avionics, in common parlance, stands for aviation electronics. It is the development and production of electronic instruments for use in aviation and astronautics and such electronic instruments themselves. Avionic systems include control, monitoring, communications and the display and management of multiple systems that are fitted to aircraft to perform individual functions. Such systems majorly include
control apparatus
performance instruments
communication instruments
navigation system
collision avoidance system
black box
Avionics are the electronic systems used on aircraft, artificial satellites, and spacecraft. My ...

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 change. After elastic ...

Professional Studies Summary:

Medical Ultrasonics:
Ultrasound uses sound waves of high frequency to diagnose patients and image the body. Ultrasound waves are longitudinal in nature and they induce back and forth oscillation of particles thus producing a series of compressions and rarefactions. The velocity, wavelength and frequencies of these sound waves can be calculated using the formula,v=fλ where velocity (v) is the speed of the wave in meters per second (ms-1), frequency (f) is the number of oscillations in a second measured in Hertz (Hz), and wavelength (λ) is the distance between two rarefactions and compressions in meters (m).
Ultrasound uses sound ...