Objects 1 and 2 attract each other with a electrostatic force of 72.0 units. If the distance separating Objects 1 and 2 is
tripled, then the new electrostatic force will be _units.

8 units

Explanation:

From the question given above, the following data were obtained:

Initial force (F₁) = 72 units

Initial distance apart (r₁) = r

Final distance apart (r₂) = tripled = 3r

Final force (F₂) =.?

The final force between the two objects can be obtained by using the following formula:

F₁r₁² = F₂r₂²

72 × r² = F₂ × (3r)²

72r² = F₂ × 9r²

Divide both side by 9r²

F₂ = 72r² / 9r²

F₂ = 8 units

Therefore, the final force between the two objects is 8 units

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers