Abstract Ernest Rutherford’s Gold Foil Experiment was a major stepping stone one the way to discovering what the atom was really made up of. From the beginning of his research with alpha particles to his discovery of the atomic nucleus‚ Rutherford made many contributions to the microscopic world of the atom. The Rutherford Experiment‚ otherwise known as the Gold Foil Experiment‚ was the crown of his achievements‚ and it was during this experiment that he discovered the atomic nucleus. (Aydin &Hanuscin
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positively charged ions (Cations) move away. Anode: Electrode which becomes negatively charged. During the process‚ positively charged ions (Cations) more towards the electrode whilst negatively charged ions (Anions) move away. [Electrodes for this experiment are firstly copper and secondly galvanized steel] (Wikipedia Editor ‚ 2012) (Wikipedia Editor ‚ 2012) (Columbia Electronic Encyclopedia‚ 2007) 2. Direct Current:
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Gram Stain: The important part of this experiment is being able to determine a bacterium based on its cell wall structure. It also helps indentify if the unknown organism is a Gram positive or Gram negative. This is the initial step that must be taken before any other lab procedure may continue on to ensure the purity is present‚ the arrangement of the cells‚ and the shape the cell has. The staining of the cell starts off with using the primary stain‚ Crystal Violet which is a purple color‚ to begin
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Can classical and operant conditioning account for the development of phobias? Classical conditioning involves pairing an unconditioned stimulus with a conditioned stimulus. The conditioned stimulus then produces a conditioned response. Operant conditioning then refers to associations between the response and the outcome. The following essay will examine evidence supporting classical and operant conditioning as a cause of phobias. Other theories‚ such as biological and evolutionary‚ will also
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ECONOMIC GROWTH AND ECONOMIC DEVELOPMENT In contemporary times‚ certain economic registers are used frequently. Arguably two of these most used terms in economics‚ ‘economic growth’ and ‘economic development’ are terms that just about everyone is at least remotely familiar with‚ even if they have not studied economics at all. Sometimes it seems everyone knows what economic growth and economic development is. Politicians use these terms all the time‚ and so do teachers‚ managers and even preachers
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Experiment 5 Polytropic Expansion of Air Object The object of this experiment is to find the relation between pressure and volume for the expansion of air in a pressure vessel – this expansion is a thermodynamic process. Introduction The expansion or compression of a gas can be described by the polytropic relation ‚ where p is pressure‚ v is specific volume‚ c is a constant and the exponent n depends on the thermodynamic process. In our experiment compressed air in a steel
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Design of Psychological Experiment The Positive Influence of Yoga exercises on work performance in data entry professions Hypothesis Yoga exercises positively influence work performance in data entry professions. We expect that after yoga exercise participants should be able to file data faster and with higher accuracy. Method Independent Variable In this study‚ the independent variable is receiving or not receiving yoga exercise. Dependant Variable The dependant
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Organizational Behavior Assignment 1 Examples of Classical Conditioning‚ Operant Conditioning and Social Learning 1. Classical Conditioning It is a process of behavior modification by which a subject comes to respond in a desired manner to a previously neutral stimulus that has been repeatedly presented along with an unconditioned stimulus that elicits the desired response; e.g. conditioned fear and anxiety - many phobias that people experience are the results of conditioning‚ like the "fear
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Aim To investigate how parachutes work and whether size matters to performance. Background According to Agee (2010)‚ “As a skydiver is falling‚ the force of gravity is pulling them towards the earth… The parachute slows the skydiver down because it causes air resistance or drag. The air pushes the parachute back up‚ and creates a force opposite to the force of gravity‚ slowing the skydiver down.” Question We wanted to find out how the size of a parachute would affect its descent as we felt slowing
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Stanford Prison Experiment Following the American Psychological Associations guidelines Zachary Hudson Waterford District High School Abstract The Stanford prison experiment‚ an unethical experiment created to study human nature in the most hellish of environments. Regular students were deceived into applying for the experiment itself and later regretted the choice because of the events that occurred during the short time that experiment ran in. The experiment ran and quickly
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