v = volume of a drop per second, cm³/s
The time taken to fill 200 cm³ is 1 hour.
Let V = 200 cm³, the filled volume.
Let t = 1 h = 3600 s, the time required to fill the volume.
The average volume of a single drop is approximately 0.0556 cm³.
Potential energy is energy stored in an object due to its position or arrangement. Kinetic energy is energy of an object due to its movement - its motion. All types of energy can be transformed into other types of energy.
F = GMm/r^2
Where G is a constant, M is the mass of the larger object, m is the mass of the other object, and r is the distance between the two objects.
1600 = GMm/r^2
Now we can find the force when the distance doubles:
F = GMm/(2r)^2
GMm will remain the same since G is a constant and the masses didn't change, so the only difference between this and the first calculation is the denominator.
By simplifying the denominator, we find:
F = GMm/(4r^2)
Now we can see that the only difference between this and the equation given the original distance is that we are dividing by 4. This means that the force will be one fourth of the original force:
1600/4 = 400
The answer is 400.