- In hydrogen the transition from level 2 to level 1 has a rest wavelength of 121.6nm.Suppose you see this line at a wavelength of 120.3nm in Star A, at 121.1nm in Star B, at 121.5nm in Star C and 122.4nm in Star D. Which stars are coming towards us? Which are moving away? Which star is moving faster relative to us (either toward or away from)? Explain your answers.
In order to determine which star is coming towards us, which is moving away and which is moving faster despite whether is moving toward or away we calculate its ...
Radial College Essays Samples For Students
19 samples of this type
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Trace evidence involved in a crime scene tends to be in many different forms for example hair, fibres, soil, and glass among others. Glass analysis includes scientifically determining the speed of bullets, the direction of shots and the firearm type based on the impact of the crack on the glass. The method applied in determining the order of gunshots utilizes the scientific approach of studying the fracture lines on the points of impact on the glass. This paper discusses the methodology used to determine the order of bullets on glass evidence and the importance of the glass analysis in ...
Measuring Heart Beats (ECG)
The heart rate of an individual has been defined as the number of times a heart beats every minute (Edlin and Golanty, 2016). When a heart beats, it pushes a volume of blood into the circulatory system. At some points in the circulatory system where the blood flows near the skin surface, one can feel blood flowing as a result of heartbeat. It is at these points where heart rate is measured. Usually, the heart rate of a person is measured at the carotid artery in the neck, radial artery located in the wrist just below the thumb, or ...
Aircraft diesel engines
Aircraft diesel engines, commonly known as aero diesel engines, are a form of aircraft engine that began being built in the 1920s and 30s. These compression-ignition engines use diesel as the major fuel. The first diesel engines to be built were the Junkers Jumo 205 and the Packard air-cooled radial diesel engines that were used to fly aircrafts, they were not very successful. The Packard air-cooled radial diesel engine was the first diesel engine to fly an aircraft built in 1928 and was made in a similar air-cooled radial design used in the Wright and Pratt designs (Mollenhauer, Krister, & Tschöke, ...
Answers to Objectives
pp. 441.
- Chordates- have pharynx which can function as digestive and respiratory. These organism have a notochord and are classified as deuterostomes. Echinoderms have spicules on their skin and they have exoskeletons made of calcium carbonate.
- Phylum Chordata- have notochords and tubular dorsal nerve cords. They also have muscular tube obtained from mesoderms. Pharynx walls have gill slits and most of the organimsms have tails. Phylum Echinodermata-organisms that are unsegmented, bilateral in larvae and usually have a radial symmetry in adults. Phylum Hemichordata are also considered as the sisters of echinoderms and most of them have shorter ...
The article under study is Expression of mutant p53 proteins implicates a lineage relationship between neural stem cells and malignant astrocytic glioma in a murine model.
Glioblastoma is referred to as the most cancerous type of astrocytic gliomas and the most commonly occurring chief brain cancer in adults. Due to the weak prognosis of glioblastoma, there is an urgent need for a better and profound understanding of disease pathogenesis. The article presents a demonstration of the fact that p53 deficiency is capable of cooperating with various mitogenic signalling pathways for inducing malignant glioma. As an example, it is not necessary to deactivate the ...
Ethical Issues in Marketing
Introduction
Marketing is an essential function in any business. Marketing without ethics would result in unmoral business. Faced with conflicting pressures, marketing managers may make compromises that include unethical business. Often, such decisions can be rationalized: an inadequately tested product has to be brought to market quickly to beat competition and payments via a third party to organized crime may protect the company's employees as well as its distribution channels (Smith & Quelch, 1996)
Identify ethical issues in marketing
The four P's of marketing: product, price, promotion and placement involve several ethical issues. Product, for example, raises obvious concerns about product safety, but the social ...
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 ...
Prison Design:
Prison design has to accommodate inmates by separating them with regards to the following two considerations: gender and degree of offenders. There can also be considerations on classifying and housing inmates according to their mental statuses. To successfully keep the society safe from medium criminals who are likely to get notorious, the prison will have two compartments that are designed differently. A radial design compartment will be used for inmates that show tendencies of risky behaviors. A campus design will serve for those inmates that are less harmful and expected to go back to the society (Waldron, 2014). Evidently, ...
Modern astronomy
There were four main contributors to modern astronomy: Sir Isaac Newton, Johannes Kepler, Galileo Galilei, and Tycho Brahe. Brahe advocated for the new standards for having a more precise observation even though he did not personally believe in the view of heliocentric. All of his contributions were huge for astronomy because he was able to create new instruments along with being able to calibrate them. He would check the accuracy of his instruments on a regular basis so it helped him to revolutionize instruments for astronomy. Kepler was an assistant for Brahe until he died in 1601. This helped ...
The Colosseum remains to be one of the largest amphitheaters of the ancient world. Located at east of the Roman forum, was originally known as the Flavian Amphitheatre after the dynastic name of the Emperor (Welch 24). It was commissioned around AD70-72 by Emperor Vespasian of the Flavian dynasty as a gift to the Roman people. The Colosseum was officially opened by Titus Vespasian, son and named it the Flavian Amphitheater where games were played in a hundred days including gladiator combat and wild animal fighting (Kuntz 45). This Roman structure remains to be one of the biggest Tourist ...
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. ...
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 ...
How were Uranus's rings discovered?
William Herschel was the first observer to mention that Uranus has a ring system in 1789. It was only a speculation since the astronomers that time could not observe any rings around Uranus. The discovery of the Uranian ring system was observed almost 200 years later by James Elliot, Edward, Dunham, and Douglas Mink in 1977. The discovery of the ring system of Uranus was only an accident when they grabbed the opportunity to observe the atmosphere of the planet using the occultation of the star SAO 158687. In their observations, they found out that the star suddenly disappeared for five ...
Skin cancer or metastatic melanoma is one of the most aggressive types of cancer (Chin, Garraway, and Fisher, 2006). Understanding the physical or phenotypic alterations that occur in relation to skin cancer requires getting acquainted with its pathophysiology. Furthermore, learning the pathophysiology of metastatic melanoma can lead us to a better understanding of what may be most effective in curing the disease.
Metastatic melanoma, causing approximately 13,000 deaths annually with a median overall survival (OS) period of 8 to 18 months, is considered as one of the most aggressive and prevalent types of cancer (Finn, Markovic, and Joseph, 2012). ...
Terrestrial Ecosystems Dynamic
Ecological systems are dynamic by nature and constantly feel the influence of climate variability. Since the structure and functioning of forest ecosystems are controlled by climatic factors through metabolic function, it may change in the future dynamics of forest restoration, growth, progress and growth of tree mortality, as well as the relationship of rocks. It is expected that climate change will be faster than the rate at which ecosystems can adapt and repair itself.
Ecosystems of the North must first of all respond to possible global warming because of climate-driven ecosystem response reveals itself most clearly. At high ...
The nervous system can be divided into two groups: the central nervous system (CNS), which comprises of the brain the spinal cord, and the peripheral nervous system (PNS), which consists of the nerves. Nervous tissue consists of two types of cells: the nerve cells and supporting glial cells (or simply glia). Glia have different types and outnumber nerve cells. In the CNS, astrocytes provide structural support for neurons, regulate the extracellular concentrations of neurotransmitters and ions, and facilitate information transfer at synapses. Radial glia is critical in the development of the nervous system. Both astrocytes and radial glia can ...
Unlike many buildings erected during the era of Augustus (27BC – 14 AD), including the basilica, the colonnade was the center piece from the front view. An element that contribute towards The Pantheon standing out is the evidence that its design allows for the dorm shape to be visible, even from the front. The beauty of the structure is complemented by numerous details that are visible from inside and outside of the structure. Notably, the building boasts of having magnificent columns that are supported by marble bases, the uniqueness of this part is captured by the historical value of the ...
Introduction
Ultrasound can be defined as the use of high frequency sound waves (having a frequency above the range, which is audible to the normal human ear, i. e. varying between 20 Hz to 20,000 Hz) for changing the chemical properties of a substance (Ter Haar, 1999). Besides medical imaging, nowadays ultrasound has become an important therapy for the management of several orthopaedic clinical conditions (Ter Haar, 1999). Stimulation of the tissues beneath the skin’s surface using high frequency sound waves is likely to result in several therapeutic benefits.
Tennis elbow (TE) or lateral humeral epicondylitis can be considered ...