Suppose there is a small pond near your home. A measuring stick is mounted at the end of a pier in order to gauge the height of the water. Assume the height of the water is 100 cm. You are carrying a large boulder as you step into a small boat tied to the pier. As you step into the boat the water’s height rises to 105 cm. Without making waves you paddle out to the middle of the pond. While floating there you decide to slowly drop the boulder into the water. Initially there are some ripples on the surface of the water, but after a few minutes the water is calm. What is the height of the water now? (a) Unchanged. (b) Greater than 105 cm,(c) less than 105 cm however greater than 100 cm, or (d) less than 100cm. Describe