1. What is an Impulse in physics terms? 2. Before a collision, a 28-kg object is moving at 14.2-m/s to the right. Find the impulse that acted on the object if, after the collision, if the object moves 14.3-m/s to the left. 3. Before a collision, a 41-kg object is moving at 11.9-m/s to the right. Find the impulse that acted on the object if, after the collision, if the object moves 10.7-m/s to the right. 4. According to Newton's Third Law of Motion, small thruster rockets can be used to make fine adjustments in satellite orbits. One such rocket has a thrust of 36.0-N. If it is fired to change the velocity of a 72808-kg satellite by 54.2-cm/s, how long should it be fired? 5. Small thruster rockets can be used to make fine adjustments in satellite orbits. One such rocket has a thrust of 39.6-N. If it is fired to change the velocity of a 72760-kg satellite by 61.8-cm/s, how long should it be fired? 6. A 10420-kg railroad car, A, traveling at a speed 27.0-m/s of strikes a 10034-kg car, B, going 31.5-m/s in the opposite direction. If the cars lock together as a result of the collision, what is their common speed just afterward? 7. Given a 4.9-kg bowling ball moving at11.5-m/s what's its Momentum??? 8. A 11784-kg railroad car, A, traveling at a speed 33.6-m/s of strikes a 9115-kg car, B, going 23.8-m/s in the same direction. If the cars lock together as a result of the collision, what is their common speed just afterward