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Projectile Motion activity â€” Projectile Motion Problem Worksheet Answer Key 4 5.) Drop a ball from a height of 2 meters and, using a stopwatch, record the time it takes to reach Riverboat Simulator Activity Purpose: ... how your data provide support for your answer. 3. For a constant river width and boat heading, what variable(s) effects the ... as your projectile, gather data and answer the following questions: a. With an initial speed of 18m/s and no air resistance, what angle must the cannon be at to hit the bull’s eye? b. Clear your results from part A, by clicking “Erase”. Now add air resistance and answer the same question. c. Clear your results from part B and Vector Addition; Equations; Description Explore vectors in 1D or 2D, and discover how vectors add together. Specify vectors in Cartesian or polar coordinates, and see the magnitude, angle, and components of each vector. Experiment with vector equations and compare vector sums and differences. Sample Learning Goals www.glencoe.com Observing Weather (Customary) How do scientists measure and describe the weather? In this introductory lesson, students will practice using a thermometer, anemometer, rain gauge, and hygrometer to record weather conditions in a variety of locations and dates. This lesson uses U.S. customary units.