For first harmonic, our wavelength was 1.200 m, found by the formula λ=2L/n. In the second part we used tension and velocity to find mass density. For the first notch, with a tension of 10.3 N, the velocity was 86 m/s with a overall mass density of 0.018. Discussion In the lab we wanted to find the frequency at which resonance occurs on a stretched wire as well as look at the relationship between the frequency of vibration and tension and linear mass density of the wire. For the first procedure, we increased the frequency until we found resonance, and recorded frequencies and nodes to calculate wavelength.
What is a spectrophotometer? A spectrophotometer is an instrument used in laboratories that measures the absorbance of materials within the ultraviolet and visible light spectrum. It works by passing light through the material and measures the amount of light absorbed; the higher the concentration, the more light is absorbed. This technique was extremely useful in this lab because by measuring the absorbance of the copper solution, the concentration of copper was determined and the percentage of copper within the penny was calculated. Materials: * Spectrophotometer * 15 M NH3 * 0.40 M Cu2+ Solution * 8 M HNO3 Procedures: Figure out the optimal wavelength for the spectrophotometer.
You can purchase the devices together as a single combination unit called an optical loss test set (OLTS) or as separate units in a fiber-optic test kit. The Time-Domain Reflectometers is the primary tool used to determine the length of a copper cable and to locate the impedance variations that are caused by opens, shorts, damaged cables, and interference with other systems. Two basic types of TDRs are available: those that display their results as a waveform on an LCD or CRT screen and those that use a numeric readout to indicate the distance to a source of impedance. You can use a TDR to test any kind of cable that uses metallic conductors, including the coaxial and twisted-pair cables used to construct LANs. A high-quality TDR can detect a large variety of cable faults, including open conductors; shorted conductors; loose connectors; sheath faults; water damage; crimped, cut, or smashed cables; and many other conditions.
75uS is the time constant used for a high-pass filter to enhance the high frequency audio before transmission to help reduce noise upon reception. The PLL is the portion of the IC which locks your chosen transmission frequency to the crystal reference X1. The PLL portion also contains an oscillator circuit which works in conjunction with the external parts of D5 and the STUB (that weird trace on the back of the board). D5 is called a varactor diode, and is a special variety of diode that is connected backwards. As a reverse DC voltage is applied across the diode, its capacitance varies.
2. FPGA devices must be configured and hardware tested for the blocks/codes developed as part of Expt. 1. and Expt. 2. The correctness of the inputs and outputs for each of the blocks must be demonstrated atleast on oscilloscopes (logic analyzer preferred).
6. Describe the way in which the above named industrial and medical radioisotopes are used and explain their use in terms of their chemical properties. Cobalt-60 is used in industrial radiography to inspect metal parts and welds for defects. Beams of radiation are directed at the object to be checked from a sealed source of Co-60. Radiographic film on the opposite side of the source is exposed when it is struck by radiation passing through the objects being tested.
Not only will we determine which one is the most resourceful for creating these packs, but we will also consider how much it will cost to actually produce them for the Dystan Medical Supply Company. In order to do this, we must find a way to determine the mass of each individual necessary in the production of a 100-mL cold pack that can attain a temperature of 0C and a 100-mL hot pack that can reach a temperature of 65C. To carry out our experiment, we will construct a calorimeter and record numerous thermograms using the MeasureNet station. In return, we will be able to tell from our
Copper Cycle Lab Purpose: In this experiment the student will gain familiarity with basic lab procedures, some chemistry of a typical transition element, and the concept of percent yield. Equipment: Balance (2) 250 mL beakers Evaporating dish Stirring rod Hotplate 100 mL grad cylinder Weighing paper Materials: 0.5 g of copper wire 2.0 M H2SO4 (aq) Acetone Conc. HNO3 (aq) 3.0 M NaOH Granular zinc Introduction: Understanding the type of reaction taking place is an important part of predicting the products of a reaction. Common chemical reactions can be described as synthesis, decomposition, single replacement, double replacement, combustion, or oxidation and reduction reactions. Each of these types of reactions behaves in a similar fashion.
Calculate the impedance by the measured values of voltage and current from the oscilloscope. Also calculate the impedance from = − C. Answer: Impedance, Z = 5∠0 34.65 60.48°) = 173.25 - 60.48⁰ = 85.37 Ω - j150.76 Ω Again, XC = 1/ = 1/ (6280 x 10-6) = 159.24
Naturally occurring chromite is composed of small amounts of titanium, zinc, cobalt, nickel, and manganese. Due to this, chromite is responsible for a multitude of industrial contributions to society. When chromium is extracted from chromite, it produces a metal alloy known as stainless steel. Since chromite has high heat stability, it is often used as a refractory material. Also, the resistance to high temperatures and pressures allow it to go through the metamorphic processes unscathed.