The electric force on two charges, Q1 and Q2, that are separated by a distance d is given by F. if you increase their distance to 5d, what is the electric force?

F/ 25

Explanation: The electro static force between 2 charges follows an inverse square law.

F1×(d1)² = F2 × (d2)²

From the question, F1 =F, d1 =d and d2 = 5d, we are to find F2

F×d² = F2 × (5d)²

F×d² = F2 × 25d²

F2 = F × d²/25d²

F2 = F/ 25

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.

explanation:

the masses of the objects and the distance between them