The question is missing, however, I guess the problem is asking for the value of the force acting between the two balls.
The Coulomb force between the two balls is:

where

is the Coulomb's constant,

is the intensity of the two charges, and

is the distance between them.
Substituting these numbers into the equation, we get

The force is repulsive, because the charges have same sign and so they repel each other.
Due to damming the water it will not flow as fast and since it wont flow as fast it will cause the water level to rise.
The Rorschach inkblots and the TAT (Thematic Appreciation Test) both rely on providing the subject with ambiguous visual stimuli and assessing the subject's state of mind using the subject's interpretation of the stimuli.
Both use cards, although not all of the cards are used in the TAT. Moreover, the TAT cards contain sketches, while the Rorschach inkblots contain patterns of ink.
Answer:

Explanation:
given,
Radius of earth = 6400 Km
speed of a physics student in Miami, Florida, at latitude 26° = v
time period of rotation = 24 hour = 24 × 3600
= 86400 s
distance = speed × time



hence, the velocity of the student is equal to