Motion in a Viscous Medium Aim The aim of this experiment is to measure the terminal velocity of spherical beads falling under gravity in a liquid determine‚ and hence determine its viscosity using Stoke’s law. Introduction When a stationary solid object is complete or partially immersed in a fluid‚ it experiences an upthrust or buoyant force. According to Archimedes’ principle‚ this buoyant force B is given by where ρ is the density of the fluid‚ Vs is the immersed volume of the
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ASP 0501 EXERCISES – circular motion 1 A car travels at a constant speed around a circular track whose radius is 2.6 km. The car goes once around the track in 360 s. What is the magnitude of the centripetal acceleration of the car? 2 An astronaut in a chamber moves on a circular path‚ much like a model airplane flying in a circle on a guideline. The chamber is located 15 m from the center of the circle. At what speed must the chamber move so that the astronaut is subjected to 7.5 times the acceleration
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1- What are the risks if the current status quo is maintained and Ron remains CEO for a few more years? Ron is 70 years old. He might be too old too hold an important rank as CEO at his age. He is ineligible for an executive role as this one because of health conditions. It would be acting as a "monarch" and lead the members of the company whether they are family or not to leave. The position Ron would be entitled to would affect the growth of the company if he were to do as he would like
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CBSE TEST PAPER-02 CLASS - IX BIOLOGY (Improvement in food Resources) 1. Weeds affect the crop plants by – (a) Killing of plants in field before they grow. (b) Dominating the plants to grow. (c) Competing for various resources of crops (plants) (d) All the above. 2. ‘Operation Flood’ in India refers to – (a) Controlling floods during rainy season. (b) Increase in milk production by development of co-operative dairy on a large scale. (c)Increase in fish production during floods.
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Incline Lab Purpose – The purpose of this experiment was to find how position and time are related to a ball on an incline. Data – 7 Books X (cm) | Trial 1 (s) | Trial 2 (s) | Trial 3 (s) | Average (s) | 10 | 0.336 | 0.3654 | 0.3434 | 0.3479 | 15 | 0.3952 | 0.4262 | 0.43 | 0.4171 | 50 | 0.9127 | 0.8846 | 0.8936 | 0.8971 | 75 | 1.1257 | 1.1178 | 1.1322 | 1.1252 | 100 | 1.320 | 1.2788 | 1.2979 | 1.2989 | 125 | 1.4924 | 1.4966 | 1.4766 | 1.4885 | 4 Books X (cm) | Trial 1 (s) |
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Name __________________ Pendulum Go to http://phet.colorado.edu/simulations/sims.php?sim=Pendulum_Lab and click on Run Now. 1. Research to find equations that would help you find g using a pendulum. Design an experiment and test your design using Moon and Jupiter. Write your procedure in a paragraph that another student could use to verify your results. Show your data‚ graphs‚ and calculations that support your strategy. The time it takes a pendulum to complete
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Name of the course: Descriptive geometry and mechanical drawing 1. Organization of the course ( 课程安排 ) 2. Introduction of the course Organization of the course • Lectures---44 • Assignments---submitted before the exercise lesson • Assessment (full score is 100) -Assignments (30%)—submitted in time + high quality; performance and contribution in the classroom. -Final examination (70%). Introduction of the course 1.The Characteristic: graphical language for engineering communication 2.Tasks （
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Abstract: This study was conducted over an 8- week period with 20 first graders in an urban school setting. Students simply wrote on self-selected topics without drawing. During the first week students were limited to writing in a 30 minute time frame. Two weeks later students were timed for 30 minutes again and they were asked to draw and then write. Results showed that when students draw and then write their stories‚ their writing performance increased. Changes to their writing center occurred
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"Drawing Back The Curtain" by Denis Healey_ The text under the title "Drawing Back the Curtain" by Denis Healey begins with the description of Russia in the early years after the war. The author speaks about the changes in looks at the Soviet Union‚ about its generation which analyzed the nature of totalitarianism. Mr. Healey believes no power could destroy national traditions which were rooted in centuries of history. After Stalin ’s death the author says Soviet Communism carried the seeds of
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1. Ingres choice of materials influences the character of his drawing‚ by the use of lightness and refinement in the drawing. The graphite pencil and smooth paper that were used in this drawing‚ allowed Ingres to cope with repeated erasing when needed‚ to bring a moderate degree of realism in his character. Ingres line work is rhythmically repeated. The contour lines on the left arm‚ on the dress are parallel to the lines on the right arm‚ of the dress. Looking at the lines of the back of the woman’s
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