Question

explaination for gravitational
formula F=K*Q1*Q2/R*R
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Answer 1

Explanation:

• Named after Charles-Augustin de Coulomb, Coulomb's Law (F=kqq/r2) is an equation that represents the attractive or repulsive electric force (F) of two point charges (q). The force is proportional to the square of the distance (r) between charges.
• The force between charges Q1 and Q2 separated by a distance r is given by Coulomb's Law: F = kQ1Q2 / r2, where k is a constant. F is attractive if the signs of charge are opposite and it is repulsive if the signs of charge are the same.
• PE = U=kq1q2/r is the electrical potential energy for the system. It is found by taking the integral of electrical force and dr from infinity to the point of location we are interested.

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