Problem 1: One mass on a See-Saw A 3.0kg mass is place 2.00m to the right of the pivot point of a see-saw. What is the the magnitude and the sign of the torque applied? This problem looks like the figure The force exerted by the mass is due to gravity and is found from F=mg. The distance between the force and the pivot point is r=2.00m. We can find the magnitude of the torque by If the mass is to the right of the pivot point‚ the rotation will be in a clockwise direction‚ so the torque is
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Factors Affecting the Rate of Enzyme Activity Justin Hunter G. Kim September 16‚ 2011 September 26‚ 2011 Abstract Catalase is a common enzyme found in nearly all living organisms that is frequently used by cells to rapidly catalyze the decomposition of hydrogen peroxide into less reactive oxygen and water molecules. Catalase is a protein that is most commonly found in the liver. The purpose of this experiment was to determine the effect that changes in temperature and pH have on the function
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27th March 2013-03-29 Citizenship homework – (Due Process) Due Process: Due Process is guarantee that all legal proceedings will be fair and that someone will be given notice of the proceedings and an opportunity to be heard before the government acts to take away one’s life‚ liberty‚ or property. It is also a guarantee that a law shall not be unreasonable‚ arbitrary or capricious. Unfair Trial: An Unfair Trial is when a court trial doesn’t follow the ‘The Rights to a Fair Trial
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Title of Experiment: An Activity Series Lab MSDS: Copper‚ Cu(s) Stability- Stable. Incompatible with strong acids‚ active halogen compounds‚ chlorine‚ fluorine‚ iodine‚ bromine‚ ammonia. May react explosively with strong oxidizing agents. Toxicology-Dust may cause respiratory irritation. Personal Protection- Suitable ventilation if handling powder. Zinc‚ Zn(s) Stability-Stable. Incompatible with amines‚ cadmium‚ sulfur‚ chlorinated solvents‚ strong acids‚ strong bases. Air and moisture
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GS104 Lab Report Experiment # 2 Data Collection David Case: January 23‚ 2015 Experiment #2 Data Collection Objectives: Exercise 1: Formulating a Hypothesis about pitching speed. To form a hypothesis for the pitching velocity of a ball. Use a spreadsheet and math to calculate the actual velocity and determine the accuracy of the hypothesis. I will also roll a large ball to measure its velocity and graph its horizontal motion. Materials: Volley
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Archimedes’ Principle: Experiment on finding the specific gravity of different materials. Pria Mae C. Cadiz ABSTRACT The students of Physics 11 Laboratory section B5 of Mapua Institute of Technology had conducted an experiment concerning Archimedes’ Principle to determine the density and specific gravity of solids and liquids applying Archimedes’ Principle. To determine the density of solids (Part A) and the specific gravity of two unknown liquid sample (Part B)‚ they had made use of platform balance
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REPORT2013JAN-PHISICS Group: LUCA Does mass/weight affect acceleration? Hypothesis: The heavier the car the slower ( the more the mass the slower)‚ the more weight(force) we added the faster. Experiment: Materials: Trolley Elastic cords for accelerating trolley Rod for attaching elastic cord to trolley Ticker-timer with power supply unit Ticker-tape Sellotape Process: 1.Thread a length of ticker-tape through a ticker-timer and attach the end to a trolley. 2.Pull a trolley with a fixed
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GS104 Lab Report Experiment # 5 Pendulum and the Calculation of g David Case: February 14‚ 2015 Experiment #5 Pendulum and the Calculation of g Objectives: To calculate the acceleration due to gravity by observing the motion of a pendulum. To investigate the effect of varying mass on the period of a pendulum. To investigate the effect of varying the length of a pendulum on the period Materials: stopwatch support for the pendulum
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This assignment entailed the task of investigation into the a) Conditions under which corrosion is accelerated‚ and b) Methods of preventing corrosion. Two experiments were implemented to answer these questions and hence reach a definate conclusion.First off let’s look at the background of corrosion and the way in which it occurs.The first hypothesis to answer was‚ ’What affect does water temperature have on the rate of corrosion of iron in sea water?’ The assumed answer was that ’ As temperature
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Enzyme Catalase Activity in Reaction with the Substrate Hydrogen Peroxide Abstract We performed these experiments to observe the effects of enzymes on the rate of reactions. We tested and compared the activity of the enzyme catalase on the substrate H2O2 in various states and percentages‚ and observed the absorption values of the enzyme-substrate relationship at different concentrations. Our results show that the more substrate available‚ the quicker the reaction will happen except in one test
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