Parachute Experiment Aim: To investigate the effect of surface area on a performance (more the amount of a parachute better the performance) of a parachute. Hypothesis- More the amount of holes in a parachute‚ faster the rate of the fall. Variables: Dependent variable- The time it takes for the parachute to reach the ground. Control variables:Mass > Adding or subtracting mass from the load. > Clay can be molded around the load to increase mass. > Parts of the load can be cut off to decrease the
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Tuskegee Syphilis experiment is the most infamous clinical study conducted in the United States between 1932 -1972. The study of natural progression of untreated syphilis in rural Africa American men‚ led to a forty year study which was controversial for reasons related to ethical standards; researchers knowingly failed to treat patients after the 1940s validation of penicillin. The patients with syphilis were never told they had it‚ were part of a case study‚ could leave the experiment at any given
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If one goes out before we wake up‚ we will get two more of the same type of battery and watch it during the day. Variables Our variable is the different brand of batteries. The controlled condition is the same type of flashlights. Results Our experiment showed that Rayovac outlasted all of the other batteries we tested by at more than two hours. The Eveready battery‚ which is a regular‚ non-alkaline battery‚ lasted only 6 hours and 35 minutes. The Duracell lasted 15 hours. The Energizer lasted
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Purpose This experiment shows how different concentrations of acids and bases in a solution affect its pH level. When acids and bases are combined in a solution‚ they neutralize each other. This means that depending on the concentration of both acids and bases in a solution‚ the pH will vary. A neutral pH level is 7; anything below that level is known as an acidic solution‚ while anything above is known as a basic solution. To find out the pH‚ the solutions will be diluted and tested with different
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Term of Confined space Confined space is a work environment which is enclosed with limited access which makes it dangerous. It may include storage tanks‚ tunnels‚ silos‚ underground electrical vaults pipelines or vessels. Confined space hazards To select the appropriate protective clothing for a specific confined space area or work environment we have to identify the hazards in that particular environment that we want to select it for. What the hazards can be in confined space? lack of oxygen
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Breaching Experiment: The Human Response to the Invasion of Personal Space Have you ever been to a wedding and just felt completely confused because one of the female guests decided she was going to wear a wedding gown of her own to someone else ’s wedding? Wouldn ’t it be weird if one day‚ you walked into one of your discussion classes to find that your cool‚ hip‚ macho male T.A. just all of a sudden decided that to put on make-up‚ wear fake rubber breasts‚ and dress like a female to teach his
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Kevin Doherty Experimenting with Plant Growth Team Rocket Science Introduction: The purpose of the experiment was to establish whether the concentration of Schultz fertilizer that was added to the radish seeds effects the speed of growth during the six-week time frame of the study. The major variables with this study are proficient communications among the team‚ the seeds‚ soil‚ water concentration‚ fertilizer‚ light exposure‚ temperature of the room‚ consistency of following watering (watering
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DOE - Design of Experiment DOE is an approach used to identify factors/steps that are contributing most to an observed variation in product specifications. The classical DOE focuses on identifying the factors that affect the level of a product/process response‚ examining the response and forming the mathematical prediction model. The modern DOE‚ introduced by Genichi Taguchi in early 1980s‚ applies in both product and process development to identify the factors that affect the variability of the
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Journal of Personality and Social Psychology 2008‚ Vol. 94‚ No. 1‚ 91–107 Copyright 2008 by the American Psychological Association 0022-3514/08/$12.00 DOI: 10.1037/0022-3514.94.1.91 The Space Between Us: Stereotype Threat and Distance in Interracial Contexts Phillip Atiba Goff The Pennsylvania State University Claude M. Steele Stanford University Paul G. Davies University of British Columbia‚ Okanagan Four studies investigate the role that stereotype threat plays in producing racial
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Objective 1. To demonstrate the relationship between the pressure and temperature of saturated steam in equilibrium with water. 2. To determine the vapour pressure curve. Introduction Properties of a fluid can change when heat and work are applied to it. There’s an interchange between the fluid and its surroundings when heat and work are applied according to the study of thermodynamics. Substances such as gases and vapors are often referred as P-V-T substances. Theory: An ideal gas
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