Laboratory Procedures DeVry University College of Engineering and Information Sciences I. OBJECTIVES 1. Use a function generator to produce different periodic waveforms. 2. Use an oscilloscope to observe periodic waveforms. 3. Use the oscilloscope to measure the waveform properties‚ including: a. Frequency‚ f and Time period‚ T b. Amplitude or Peak Value‚ VP ‚ and Peak to Peak Value‚ VPP c. RMS Value‚ VRMS 4. Repeat the measurements using MultiSim
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property k is dependent on the substances atomic structure & temperature‚ which will be verified in this experiment. The governing law of conduction‚ known as Fourier’s Law of Heat Conduction is represented by the equation: [4] Qcond= -kAcdTdx (1) Qcond represents the rate of heat conduction; Ac represents the cross-sectional area that the heat is being transferred through; k represents the thermal conductivity of the material; dTdx represents the approximation for temperature gradient across
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1.If the inclination angle is zero‚ how does the path of the Sun in the sky change as the planet moves from the right side of its orbit to the left? What is the longest duration (in hours) of sunlit time during the year? What is the shortest duration of sunlit time? How does the angle of sunlight striking the ground change? What is the change in average temperature? The path of the Sun in the sky doesn’t change as the planet moves from the right side of its orbit to the left. The longest
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1. Healthcare is under a strict HIPPA privacy requirements which require that an organization have proper security controls for handling personal healthcare information (PHI) privacy data. This includes security controls for the IT infrastructure handling PHI privacy data. Which one of the listed risks‚ threats‚ or vulnerabilities can violate HIPPA privacy requirements? List one and justify your answer in one or two sentences. Hacker penetrates your IT infrastructure and gains access to your
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Precision and Accuracy in the Laboratory Precision – This is a word used to describe the quality; fact or condition of being exact and accurate.(1) Accuracy – This is a word to describe the quality or state of being correct or precise. (2) AIM: The aim of the practical is to assess the accuracy and precision of three types of pipette. Abstract: In this experiment‚ I am going to be assessing the accuracy of a 10ml graduated pipette‚ a 1ml blowout pipette and a Gilson P1000 automatic pipette. This
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Interreach variability and correlation analyses between biotic and abiotic factors of the Old Chelsea stream BIO2129 Section Demonstrators: October 1‚ 2014 Department of Biology Hypotheses Water quality parameters such as pH‚ dissolved oxygen‚ seston‚ water temperature etc. are important variables in the abundance and diversity of benthic macroinvertebrates of the Old Chelsea stream. Therefore‚ it can be hypothesized that pH and dissolved oxygen have a direct correlation on biotic factors
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What are the dependent and independent variables? What are your controls - both positive and negative? How will you collect your data? How will you present your data (charts‚ graphs‚ types)? How will you analyze your data? Observations 1. A plant grows three inches faster per day wWhen Sally eats healthy foods and exercises regularly‚ her blood pressure is 10 points lower than when she does not exercise and eats fatty foods. 4. The Italian restaurant across the street closes at 9
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b 1 Exercise 1: Dissolved oxygen is oxygen that is trapped in a fluid‚ such as water. Since virtually every 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 measure in units of ppm—or parts per million. Examine the data in Table 2 showing the amount of dissolved oxygen present and the number of fish observed in the body of water the sample was taken from; finally
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solution Red-Orange Ni(NO3)2 Transparent‚ blue Green-Blue Unknown A Colourless solution Green Unknown B Colourless solution Light Purple Unknown C Colourless solution Bright Orange Unknown D Colourless solution Dark Red Questions: 1. Unknown A Ba(NO3)2 Unknown B KNO3 Unknown C NaCl (aq) Unknown D Sr(No3)2 2. The ranking would be as follows: Sr(NO3)2 ‚ LiNO3‚ Ca(NO3)2‚ NaNO3‚ Solid NaCl‚ NaCl‚ Ba(NO3)2‚ Cu(NO3)2‚ Ni(NO3)2 and lastly KNO3. 3. Most of the anions are
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Rousselle Molina Ms.Moraima Group 2; HW 1 9-25-12 EVOLUTION; NATURAL SELECTION I.ABSTRACT: As we all know‚ evolution is a change in population over a period of time. Natural Selection as its own mechanism takes place for survival of the offspring from varying changes of the environment. One good example of natural selection is the population of peppered moth predominant in England. During pre-industrial revolution‚ there were highly significant light colored moths that
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