Report Hypothesis: I predict that as the surface area of the canopy increases‚ the time it takes for the parachute to fall also increases. This is because the air resistance is larger‚ therefore the drag is increased. So the speed of the parachute decreases. This is because the forces (air resistance and gravity) are unbalanced. The change in air resistance is important because the larger the surface area of the canopy‚ the more air particles it is ‘hitting’; therefore the
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Area 51 Area 51 is a nickname for a military base that is located in the southern portion of Nevada in the western United States (83 miles north-northwest of downtown Las Vegas). Situated at its center‚ on the southern shore of Groom Lake‚ is a large secretive military airfield. The base’s primary purpose is to support development and testing of experimental aircraft and weapons systems. Its secretive nature and undoubted connection to classified aircraft research‚ together with reports of
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Task 5 5th and 6th graders will be introduced to the concept of surface area of a cube. When doing so I would first begin by connecting previous learning with the new concept. These previous concepts are the prerequisite skills necessary to complete this task. Students will need to know how to compute for surface area. Some experience with using the equation (L x W) to compute for surface area is also helpful when advancing to surface area of a cube. Secure understanding of multiplication facts with
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Organ systems are specialised so that they can maximise the amount of materials exchanged over their membranes. The ways that effectiveness of an exchange surface can be increased are: Large surface area: a larger surface area means that more diffusion can occur at once. Thin membrane: this speeds up the exchange because the diffusion path is shorter so the molecules have less distance to travel. Efficient blood supply: In animals the blood system is very efficient for transporting a variety
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Demonstration of the Rates of Reaction Between Sulphuric Acid (25mL ±0.5mL) and Magnesium (0.02g ±0.01g) Changing Due to Different Surface Areas By Chania Baldwin Introduction: When sulphuric acid and magnesium are added together‚ magnesium sulphate and hydrogen gas is created. To create such a reaction the atoms must collide with a sufficient amount of energy. Every reaction requires a different amount of energy to create the reaction‚ which is called the activation energy; when there is not enough
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Author *Email: choiw@fiu.edu Author Contributions ‡These authors contributed equally. Abstract Carbon nanotubes‚ in different forms and architectures‚ have demonstrated good promise as electrode material for Li-ion batteries‚ owing to large surface area‚ shorter Li-conduction distance and high electrical conductivity. However‚ practical application of such Li-ion batteries demands higher volumetric capacity‚ which is otherwise low for most nanomaterials‚ used as electrodes. In order to address
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Alveolar Surface Tension and Surfactant in the Compliance of the Lungs Alveolar surface tension is important for the lungs to function efficiently. Surfactant is a lining in the alveoli made of lipids and proteins. Surface tension of the alveoli are important to keep the alveoli shape‚ but surfactant is needed to regulate surface tension. Also surface tension promotes movement of fluids across the alveolar membrane‚ therefore the surfactant also regulates the movement of fluids. Attraction of
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Evaporation? Aim * To find out if changes in temperature‚ draught and surface area of water open to air affects the rate of evaporation through the water. * To safely check if these variables change the rate of evaporation * To complete all the experiments in the short period given Prediction * I believe that a raise in temperature will speed up the rate of evaporation in the water * I believe that a larger surface area will speed up the rate of evaporation in the water * I believe that
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30m/s due north. Meanwhile‚ acceleration is definitely not the same as velocity or speed. Acceleration is the change in velocity in a certain amount of time. The factors affecting the terminal velocity of a falling object include: its mass‚ its surface area‚ the viscosity of a liquid and the height of where the object is dropped. In his First Law‚ Newton explained the effect of a net force‚ greater than zero‚ upon an object at rest. In his Second Law‚ Newton explains the effect of a force upon a moving
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Chemistry For You by Laurie Ryan‚ it states "As you increase the concentration of the acid‚ there are more acid particles in the same volume. Therefore there is a greater chance of acid particles colliding‚ and reacting with more particles on the surface of the marble." So‚ this means that the higher the concentration of my acid the faster the reaction. Method I will weigh out one gram of marble chips using a balance and put it in a conical flask and add to it a concentration of 50cm3
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