A space vehicle deploys its re–entry parachute when it's traveling at a vertical velocity of –150 meters/second (negative becaus
e the parachute is going down.) It comes to rest at 0 meters/second after 30 seconds. What's the average acceleration of the shuttle during this time span?
On a topographic map, the closed circles are meant to represent a hill. So if the contour lines are creating a group of concentric closed loops then it must be an indication of a hill.
I personally think the answer is B. <span>"Non-
horizontal rock layers were tilted or folded after they were originally
deposited; this makes the law of superposition challenging to use."</span> Hoped I helped!