LAB 05B Momentous Design Proposal name :sonia malini Date of investigation: 8 September‚ 15 September 2009 Date of submission: 29 September 2009 Purpose The main purpose of the experiment is to investigate validity of the conservation of linear momentum from three main different types of momentum‚ namely: head on collision of equal masses‚ head on collision on unequal masses and exploding carts. Theory In the 17th century‚ Isaac Newton was the one who realized that the momentum is conserved
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Experiment 1 Simple Reaction Time Abstract Summary The Research Instructor conducted an experiment about Simple Reaction Time. The Subject hold the timer while the Experimenter gave a go signal‚ and the Subject started the timer and shared stories. The Recorder used a cell phone to track the time. The Subject was not able to see the timer‚ and also the data that was being recorded. This was performed forty-five trials. Afterwards‚ the Experimenter and the Subject switched roles and performed ten
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ABSTRACT Ultrasonic range finder using 8051 A simple ultrasonic range finder using 8051 microcontroller is presented in this project. This ultrasonic rangefinder can measure distances up to 2.5 meters at an accuracy of 1 centi meter. AT89s51 microcontroller and the ultrasonic transducer module HC-SR04 forms the basis of this circuit. The ultrasonic module sends a signal to the object‚ then picks up its echo and outputs a wave form whose time period is proportional to the distance. The microcontroller
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rate of the catalase will decrease‚ as the catalase will speed up the reaction. MATERIALS: 90 mL clear‚ plastic Solo cups filter paper bottle of regular hydrogen peroxide 1%‚ 25%‚ 50%‚ 75%‚ and 100% substrate concentration tweezers timer permanent marker pen/pencil paper for data PROCEDURE: The experiment begins with five beakers full of various substrate concentrations. To begin the lab‚ gather five plastic‚ Solo cups and label them 1%‚ 25%‚ 50%‚ 75%‚ and 100% with the permanent
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time(by choice).We put them in our preheated oven‚ and we set the timer for ten minutes. Like I’ve said before I have learned lesson on what to set my timer on ‚ the recipe says nine to eleven minutes‚ but from my extensive experience with my oven‚ I have learned that ten minutes works the best. While the cookies are baking‚ I make the other two other cookie sheets by placing twelve spoonfuls of cookie dough on each pan. When the timer goes off‚ I pull the freshly baked chocolate chip cookies out of
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much of this pain in their pocketbook or pockets‚ this economic fall has forced many to defer form their dreams and find a better work balance. It is now that places are hiring for part time and letting go of the full timers mainly to cut cost. They would rather hire a part timer only so they can pay them the minimum wage. But do these jobs have unions or guaranteed raises? If they do‚ what happens when they don’t get them? Some usually talk to the Employees that do the payroll‚ but if that doesn’t
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giving more chances for them to break bonds. [INSERT PICTURE] Equipment 3 Burettes ( One for water ‚ One for HCl and the other for sodium thosulphate) Distilled Water Beaker(s) HCl (1 Molar) Sodium Thosulphate (0.25 molar) Data Logger Timer I have elected to use burettes beacuse these will allow for more accurate measurement ( to within 1/10 ml) And I will be using one for each substance so that there is no cross contamination between the chemicals.I am using
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GENERAL SPECIFICATIONS Specifications Overview Model: Olympus E-PL1 /Nikon D5100 Camera Format: 13.1 million pixel ultra-compact digital camera‚ interchangeable lens type digital camera/16.2 megapixel‚ SLR camera Release Date: about Feb 2010/about April 2011 Factory pricing: --- Durable characteristics: --- Image Size IMAGE SPECIFICATIONS Photosensitive element pixel: 13.1 million pixels/ 16.2 million pixels Effective pixels: 12.3 million pixels/ 16.2 million pixels Sensor size: 17.3 x 13
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BUILD AN EARTHQUAKE DETECTOR If you live in an earthquake zone‚ this vibration sensor can save your property or your life. If not‚ it can be used as a bur- or many of us that live in a seismically active region‚ an earthquake is a very real and constant threat. Even moderate earthquakes that are not strong enough to hurt anyone can cause a significant amount of damage to the contents of your house if you are not prepared. Although earthquake prediction has made great strides over the
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grams of salt‚ put aside Place beaker over Bunsen burner Hold thermometer just above base of beaker Heat to desired temperature Remove from Bunsen burner and place on heat proof mat Add prepared salt and start timer Use stirring rod to stir until salt is dissolved Stop timer and record time Repeat process three times over to ensure it is a fair test Repeat entire method for each temperature Temperature (Degrees Celsius) Time Taken(Seconds) Test 1 Test 2 Test 3 Average 20
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