conceptual exercises ARISTOTELIAN PHYSICS 1. You roll a ball. It soon rolls to a stop. How would Aristo- tle interpret this? How would Galileo interpret it? 12. THE LAW OF INERTIA 2. Most meteoroids-pebble-sized to boulder-sized rocks in outer space-have been moving for billions of years. What, if anything, keeps them moving? 3. If you ride on a smooth, fast train at an unchanging speed and throw a baseball upward inside the train, will the baseball then get left behind and come down toward the rear of the car? Explain. 4. If a ball is moving at 20 m/s and no forces ever act on it, what will its speed be after 5 s? After 5 y? 5. Do you suppose that the photo of Earth shown in Figure 1.7 was taken from a low-orbit satellite (see Figure 3.7)? 6. In order to experimentally verify the law of inertia, would you need to be able to measure time? Weight? Distance? 7. When a moving bus comes rapidly to a stop, why do the riders who are standing lurch toward the front of the bus? 13. R SPEED AND VELOCITY 8. Can you drive your car around the block at a constant velocity? 9. Mary passes Mike from behind while bicycling. As she passes him, do the two have the same velocity? The same speed? 10 Mary is bicvcling straight north at 15 km/hr, and Mike is 14. Ir in ha 15. Fi BIOL 2010-10 e Type here to search
conceptual exercises ARISTOTELIAN PHYSICS 1. You roll a ball. It soon rolls to a stop. How would Aristo- tle interpret this? How would Galileo interpret it? 12. THE LAW OF INERTIA 2. Most meteoroids-pebble-sized to boulder-sized rocks in outer space-have been moving for billions of years. What, if anything, keeps them moving? 3. If you ride on a smooth, fast train at an unchanging speed and throw a baseball upward inside the train, will the baseball then get left behind and come down toward the rear of the car? Explain. 4. If a ball is moving at 20 m/s and no forces ever act on it, what will its speed be after 5 s? After 5 y? 5. Do you suppose that the photo of Earth shown in Figure 1.7 was taken from a low-orbit satellite (see Figure 3.7)? 6. In order to experimentally verify the law of inertia, would you need to be able to measure time? Weight? Distance? 7. When a moving bus comes rapidly to a stop, why do the riders who are standing lurch toward the front of the bus? 13. R SPEED AND VELOCITY 8. Can you drive your car around the block at a constant velocity? 9. Mary passes Mike from behind while bicycling. As she passes him, do the two have the same velocity? The same speed? 10 Mary is bicvcling straight north at 15 km/hr, and Mike is 14. Ir in ha 15. Fi BIOL 2010-10 e Type here to search
Astronomy
1st Edition
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Chapter21: The Birth Of Stars And The Discovery Of Planets Outside The Solar System
Section: Chapter Questions
Problem 21E: Exoplanets in eccentric orbits experience large temperature swings during their orbits. Suppose you...
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