1. The problem statement, all variables and given/known data . Your physics teacher has assigned you the task of building a water ba,rometer. You've learned that the pressure of the atmosphere can vary by as much as 5 percent from 1 standard atmosphere as the weather changes. (a) What minimum height must your ba,rometer have? (b) One stormy day the TV weather person says, "The barometer pressure this afternoon is low 29.55 inches." What is the height of the water in your barometer? 2. Relevant equations I'm not really sure where to even begin 3. The attempt at a solution I have none, don't know where to start. There is no mention of a barometer in my textbook.