Short Answer 1. A light aircraft flew 2.5 x 102 km [W 30.0 S]. Determine the components of the displacement. (A: /5) 2. A roller coaster is designed with a clothoid loop that has a radius of 12.0 m at the top. For comfort, the apparent weight of a rider at the top of the loop must be 0.400 normal weight. What is the speed of the car at the top of such a loop? (A: /5) . One of the early communications satellites was Telstar, launched in 1962 and inspiring a popular song on the radio. It followed an elliptical orbit that varied from about 1.00 x 10' km to 6.00 x 10 km above Earth. What was its orbital speed at its closest approach to Earth? (A: /5) . A car battery transferred 60.0 J of energy to 5.00 C of electrons to light up the headlight of a car. What was the voltage of the battery? (A: /5) 5. A spacecraft travels at 2 x 10% m/s relative to Earth. An astronaut on board listens to a CD that lasts 50 min. How long would the CD last as measured by a stationary clock on Earth? (A: /5) 6. Use a table or other graphic organizer to compare the three methods of adding displacement vectors: scale diagram, sine and cosine laws and vector components. Address accuracy with reference to approximate significant digits and number of vectors that can be handled at one time. (C: /6) 7. A magician spins an olive around the inside of a slippery glass, as shown. For a short time the olive appears to defy gravity, spinning around without falling into the glass. Explain how this trick works. (C: /4) Olive Glass 8. List some disadvantages of hydroelectric power generation. (C: /5) 9. Refer to the series of three diagrams. Explain the type of charging taking place, and why it works. (C: /5) charged rod ground B C