EXPERIMENT NO-1 AIM- To determine the frequency of A. C. mains by using an electric vibrator. APPARATUS- Electric vibrator‚ table lamp‚ pulley‚ weight box‚ fishing cord‚ a. c. source. THEORY- when a cord of mass per unit length m is connected to the vibrating rod of the vibrator and stretched with a tension T‚ the cord vibrators in segments. If the length of the cord is then adjusted until the nodes are clearly marked‚ the frequency of the stretched string is the same as of the vibrating rod which
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Title Antimicrobial properties in different type of plants. Introduction A substance that kills or prevents the growth of microorganisms for example bacteria‚ fungi or protozoans is called an antimicrobial. This substance has 2 major roles which are to either kill microbes (microbiocidal) or prevent the growth of microbes (microbiostatic). Disinfectants are antimicrobial substances used on non-living objects outside the body. This substance included antibiotics‚ antifungals‚ antiprotozoals and
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neurons that are stimulated causing depolarization of most of the neurons 6. If you were to spend a lot of time studying nerve physiology in the laboratory‚ what type of stimulus would use‚ and why? If I spent time studying nerve physiology in a lab‚ I would use electrical stimulus. Using electrical stimulus 7. Why does the addition of sodium chloride elicit and action potential? The addition of sodium chloride elicits and action potential because it increases the concentration of sodium
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The Holy experiment William Penn holy experiment is to create a colony on the principle of self-government‚ religious toleration‚ and brotherly love. William Penn make a government which can run with the law of the people. Pennsylvania first constitution organized the government into three parts: the governor‚ the seventy two member of provisional council‚ and general assembly with two hundred member. While the proprietor held his office by hereditary‚ the council and assembly were elected by the
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respiration (Evert RF‚ Eichhorn SE & Perry JB 2013). This experiment focuses on the enzyme catalase. Catalase breaks down hydrogen peroxide into water and oxygen. Hydrogen peroxide is a waste product of cell metabolism that can be toxic to the cell (Evert RF‚ Eichhorn SE & Perry JB 2013). The
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analogue experiment blind design case study confound control group correlation correlational method dependent variable double-blind design epidemiological study A research method in which the experimenter produces abnormal-like behavior in laboratory participants and then conducts experiments on the participants. An experiment in which participants do not know whether they are in the experimental or the control condition. A detailed account of a person’s life and
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Coketown By Charles Dickens Dickens is using figures of speech to make pictures in the readers head and he is therefore helping people imagine the things he is telling about. One would say that Dickens is using metaphors to put a picture on his story and to make everyone feels how awful and terrible Coketown is. “Coketown was a town of red brick‚ or of brick that would have been red if the smoke and ashes had allowed it; but‚ as matters stood it was a town of unnatural red and black like the
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English 10a 6 March 2012 Tuskegee Experiments This is possibly one of the most inhumane things to ever happen in the 20th century in the Untied States. The experiments that took place were the root of medical misconduct and blatant disregard for human rights that took place in the name of science. The ghastly medical expirements that took place between 1932 and 1972 was merely an observation of the different stages of syphilis. The men in these experiments for the most part were illiterate
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Charles Baudelaire in his salon review describes about transitional fashion rules. Fashion is ever evolving; it can never ever be passive. Baudelaire claim to “all fashions were legitimately charming in their day” from “all fashions are charming” is a call of a cautious critic. The efficacious character of such a generic statement might get distasteful from a certain viewpoint‚ and hence this quick transition to fashion being charming and embryonic. Fashion has a dual nature and stands the test of
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This part of the experiment yielded an exothermic reaction. The purpose was to calculate the specific heat capacity and molar mass of the zinc metal. The specific heat capacity was found to be 0.197 J/g °C with a percent error of -49.5%. The molar mass was found to be 127 g/mol with a percent error of 94.2%. Possible sources of error inherent to this segment of the experiment were the fact that when the temperature of the solution was being measured
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