To determine the heating and cooling curve of water Design: What we are going to do is investigate the phase changes and what the heating curve of water is. We are going to do this is by heating up 100ml of water on a Bunsen burner then adding ice cubes. Use a thermometer to measure the temperature every 30 seconds until it reaches a plateau. Hypothesis: As more time passes‚ the temperature of the water increases. Independent variable: Time Dependent variable: Changing water temperature
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light reflected from the mirror would trace patterns which depended on the frequencies of the sounds. Lissajous’ setup was similar to the apparatus which is used today to project laser light shows. Before the days of digital frequency meters and phase-locked loops‚ Lissajous figures were used to determine the frequencies of sounds or radio signals. A signal of known frequency was applied to the horizontal axis of an oscilloscope‚ and the signal to be measured was applied to the vertical axis. The
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a brief note on any two of the following (5+5) 1. 2. 3. Conical pendulum Surface Tension Parallel Axis Theorem (4) (Section-2) 7(a)Discuss the combination of two simple harmonic oscillations in the formation of Lissajous figures under typical phase and amplitude conditions in case of equal frequencies ? (7) 7(b) A 3.94 Kg block extends a spring to 15.7 cm. the block is
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MRI of the Knee Materials utilized for the procedure KC Hutchins The materials used in the MRI of the knee are surface coils‚ volume coils‚ knee positioning pads‚ sandbags‚ and Gadolinium‚ in the case of a Magnetic Resonance Angiogram. Firstly‚ in some cases‚ a surface coil is used. They are of the simplest design‚ a loop of conducting material. It is used as a transmitter of radiofrequency energy. This receiver coil is placed on the region of interest or the knee‚ in this example‚ for greater
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Catie Bates 10/22/2014 Physical Science Physical Changes I like physical changes more than chemical changes. Some reasons are‚ physical change is "easily" reversible‚ how liquids can become solid and vice versa‚ the solid disappears but just the application of heat can boil the water off and get the salt back in the same form. Therefore‚ I like physical changes more than chemical changes. I like physical changes more than chemical changes because physical change is "easily" reversible because
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Waves Introduction For this experiment‚ the use of equipment such as oscillators and function generators were used in order to calculate forms of AC waves. Waves are visual representations of the variation of a voltage or current over time and are used in many applications throughout technology. Aim The aim of this laboratory was to be able to measure the voltage in a circuit over a specific time using equipment such as an oscilloscope‚ and using it to look at the SINE wave that is
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QUIZ # 2 ECP433L1 Direction: Rewrite the following questions in Engineering Lettering before answering. This will be send by 10:30 am.. Therefore call time for papers is 4.30 in the afternoon. Scan or photos of the papers will be send in my email. Thanks PS.. 1. Determine the percent modulation of an AM for the following conditions if the unmodulated carrier is 80 V peak to peak. | Maximum P-P carrier | Minumum P-P carrier | (a) | 100 | 60 | (b) | 125 | 35 | (c) | 160 | 0
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COMP3054 LAB 6 Name: ID# Section: LAB 6: Frequency Domain Measurements Using the Vector Signal Analyzer Objective: Measure: frequency and amplitude‚ channel power/ band power‚ relative frequency and amplitude‚ improving resolution‚ and spectrogram displays using the VSA Section A: Measuring Frequency and Amplitude
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Chemical Periodicity Engr. Imelda Galera De La Salle University-Dasmariñas Dasmariñas‚ Cavite Philippines ABSTRACT Chemical periodicity was demonstrated using different samples of elements from Group IA‚ IIA and IVA. These samples are: Li2CO3‚ Na2CO3‚ K2CO3‚ MgCO3‚ CaCO3‚ BaCO3‚ Carbon‚ Tin‚ Silicon and Lead. Each sample was placed in a test tube‚ (one sample and one test tube) and the physical color‚ appearance and state was defined. Water was used to test the solubility of the element
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ECE 4784/6784‚ Wireless Communications‚ Assignment 1 1. (15) A half-wave dipole is situated at the top of a cellular tower‚ oriented vertically on the tower. The current into the dipole is a sinusoidal current at frequency 870 MHz‚ with peak value I = 0.1 ampere. Consider a mobile receiver at a distance of d kilometers along the horizon. Remember the dipole pattern gives field strength E(d‚ θ‚ φ) = 60I cos( π cos(θ)) 2 aθ v/m d sin(θ) (1) a. Assume free-space propagation laws.
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