1.
two containers of water can have their individual masses varied by adding or removing water. the
containers are initially a distance d apart, as measured from their centers, and are filled with water so that
each has a mass m, as shown in figure 1 above. the gravitational force that one container exerts on the
other is fo. water is then added to one container so that its mass increases to 1.5m, and water is removed
from the other container so that its mass decreases to 0.5m, as shown in figure 2. what is the new
gravitational force exerted on one container by the other?