Water in a smooth, gentle river flows past the cylindrical post supporting a dock. At the point where this water first encounters the vertical post (see Figure A), the water level
A. is the same as elsewhere on the river.
B. rises slightly higher than elsewhere on the river.
C. drops slightly lower than elsewhere on the river.
D. vibrates up and down, but averages to the same height as elsewhere on the river.
Answer:B
Water in a smooth, gentle river flows past the cylindrical post supporting a dock. At the point where this water first encounters the vertical post (see Figure A), the water level
A. is the same as elsewhere on the river. B. rises slightly higher than elsewhere on the river. C. drops slightly lower than elsewhere on the river. D. vibrates up and down, but averages to the same height as elsewhere on the river.