opposition of a circuit to the flow of an electrical current as ‚ So we just need to use the apparatus to measure the maximum voltage. As we know‚ at the resonance frequency‚ we have XL=XC and the impedance‚ Z is equal to the resistance R‚ where Z=R. Because the capacitative and inductive reactances vary with the frequency of the AC current‚ the impedance of a circuit containing capacitors and inductors also varies with AC frequency. For a circuit with AC current flowing at angular frequency ω‚ its impedance
Premium Alternating current Inductor Electrical resistance
4B: THE MENDELEEV LAB OF 1869 Materials: 30 element cards‚ periodic table Aim: How can we identify elements based on their propeties? Background: Russian chemist Dmitri Mendeleev is generally credited as being the first chemist to observe patterns emerge when the elements are arranged according to their properties. Mendeleev’s arrangement of the elements was unique because he left blank spaces for elements that he claimed were undiscovered as of 1869. Mendeleev was so confident that he
Premium Periodic table Dmitri Mendeleev
Leila Espinal Grade 8 O.L.C.A. November 20‚ 2013 Lab Report 1. Problem: To find the density of a Hershey chocolate bar. 2. Hypothesis: I think the chocolate bar will gradually decrease in density as it gets smaller. 3: Materials: 1 whole Hershey chocolate bar‚ ruler‚ triple balance beam‚ tray‚ calculator. 4. Procedure: First‚ find the mass‚ volume‚ and density of an entire Hershey Bar. Then‚ systematically‚ break off one section at a time to calculate the
Premium Chocolate Confectionery Length
Microbiology-2460 Lab-003 March 31‚2008 Lab Report-Escherichia coli Abstract The purpose for this lab report was to identify and inform of an unknown bacteria that has been causing a patient to have lower abdominal and pelvic pain. To obtain the identification of this unknown bacterium‚ several biochemical tests needed to be performed in order to prescribe the correct medication to treat and cure the symptoms. Introduction In a lab today‚ I am to identify an unknown bacterium that is
Premium Escherichia coli Bacteria
zinc chloride and hydrogen gas. Safety: Wear your safety goggles and apron If you spill Hydrochloric acid on yourself‚ rinse with water Procedure: DAY I 1. Take a post-1983 penny and‚ using a triangular file‚ etch an “X” on one side of the penny. Also etch a notch on the edge of the penny in the four positions shown in the diagram. 2. Mass and record the mass of the penny. 3. Using a graduated cylinder‚ measure 60.0 mL of 3.0 M HCl and pour it into your 100mL beaker. 4. Place the penny in the HCl
Premium Hydrogen Hydrochloric acid Chlorine
1. Compare the hash values calculated for example.txt that you documented during this lab. Explain in your own words why the hash values will change when the data is modified. They change to keep authentication and integrity. 2. Why are the MD5sum and SHA1sum hash values the same every time you calculate for the “example.txt” sample fi le? What if they were different when you re-calculated the hash value at the other end? These are the same to verify authentication and integrity.
Premium Cryptography Windows XP Microsoft Windows
ASTR 1030 Birthday Lab b Name: Section: 1030 Date:1/28/13 Birthplace: Brazil Betem Longitude: w 45 27’ 36.00 Latitude: s 19 9’ 36.00 Date of birth: 6/4/1776 Day of the Week Thursday Your birth sign‚ according to the newspaper astrologer: Gemini Actual zodiacal constellation the Sun lay in: It in a different constellation each month Time of Sunrise on your birth date:5:42A.M.; Sunset:7:32P.M. Mercury lies to the east of the Sun in the constellation Aquarius
Premium Sun Ecliptic Moon
than regular employees “do you agree with this statement? Justify your answer in scholarly detail!! The importance of management to an organization cannot be over emphasized‚ management provide the reason why organization ever survive‚ the managers are the ones that influence all phases of modern organizations‚ they provide the organization with effective and competent workforce that makes organizations (Certo & Certo‚ 2012) I will clearly state that managers should be paid more than regular employees
Premium Management Employment Organization
catalase is first introduced for 10seconds‚ the rate of reaction was highest because that was when substrate and enzyme concentration stayed the highest. As the experiment is prolonged‚ substrate concentration will only decrease as it is limited but the enzymes will continue to catalyze the lower concentration which leads to a lower rate. The amount of H2O2 consumed in the time course determination test never exceeded the baseline because it is expected that the baseline reacts to
Premium Oxygen Enzyme Hydrogen peroxide
Budget Introduction: This Albedo lab was created to help explain the process in which the Earth reflects solar energy back to space. The fraction of radiation reflected by an object is known as an albedo. In relation to the atmosphere‚ as solar radiation reaches certain colors on the surface of Earth‚ more radiation is absorbed by darker colors‚ which in turn decreases the solar radiation that reflects back to the atmosphere. If a person was interested in learning more about factors of
Premium Temperature Sun Black body