Sally is performing a test in which she is trying to see if plants can grow when given a certain brand of soda. She gives one plant water and a second identical plant the same amount of soda for 2 weeks. What is the independent variable?

Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel