The gravitational force is inversely proportional to the
square of the distance between their centers. So the
force is greatest when the distance is zero.
The net force on the hanging object is zero. If it were not zero, then the object would be accelerating in some direction.
Answer:
The value is 
Explanation:
From the question we are told
The pipe diameter at location 1 is 
The velocity at location 1 is 
The diameter at location 2 is 
Generally the area at location 1 is

=> 
=> 
=> 
Generally the area at location 1 is

=> 
=> 
Generally from continuity equation we have that

=> 
=> 
=> 
During the daytime, I have mostly line symmetry.
During the night, I often have almost spherical symmetry.